and Self Recording Thermoscopes.
Year: 1887

page_text: and Self Recording Thermoscopes.
I, HENRY JANSEN HAIGHT, of 284 Madison Avenue in the City and State of New
York, United States of America, Gentleman, do hereby declare the nature of this
invention, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
The first part of my invention has for its purpose the combination with an Electro-
Magnetic Thermoscope which indicates the temperature of any given room or place, at
any required distance thereform, of means for sounding an alarm, or notice, and for
signalling to the sight, one or both, when either extreme of temperature preestablished,
or any given degree of temperature is reached, at the transmitting room or place, and
also for recording the limits of extremes, as well as intermediate degrees of temperature
of the said transmitting room or place, at the receiving station, for subsequent inspec-
tion. This part of my invention consists, first, in combining with the receiving
thermoscope or instrument of an electro-magnetic thermoscope, a sound, alarm
device brought into action thereby when any predetermined limit or degree of tem-
perature has been reached at the transmitting room or place; second, in combining
with such receiving instrument a device for sight-signalling actuated thereby, when
the required limit or limits may have been reached at the transmitting room or place;
third, in combining with such receiving instrument a self-recording device actuated
thereby, to mark from hour to hour the variations of temperature at the transmitting
room or place; fourth, in combining in one apparatus all of the self-alarm, self-
signalling, and self-recording devices, as applied to two or any greater number of
receiving electro-magnetic thermoscopic instruments, each instrument having one, two,
or all of such devices according to the use of each instrument; and, fifth, in several
specific devices, hereinafter set forth, auxiliary to the construction, or conducive to
the proper operation, of the several main devices above specified.
In carrying out this part of my invention, I use any electro-magnetic receiving
thermoscope which indicates the temperature at a given place, at any distance away,
at each moment, or any particular time.

page_text: Such a receiving thermoscope is applicable to many and various uses, for some of
which it is only necessary or desirable to thus indicate the temperature to the near
observer, at the moment of observation; while, in other cases, it may be necessary or
desirable to sound an alarm to some one simply in the vicinity, or within hearing of
the receiving instrument, whenever a certain limit of heat is reached, either the
highest or the lowest desired, for the simple purpose of calling the attention of an
attendant, near by, but often out of sight of the instrument, and and not necessarily
requiring him to visit the instrument at all, but merely warning him to give some
instructions to others, or do some required act, under the circumstances; whereas, in
other cases, it may be necessary or preferable to signal to the sight only, when such a
limit of temperature has been reached, the attendant being supposed to be in sight of,
or in a proper position to inspect, the instrument, it being of less importance, in such
cases, to know immediately that the signal has been made than to know the purpose
of the signal, whether the highest or the lowest limit has been reached. Again it
may be important or desirable both to have a sound-alarm, for instantly calling the
attendant's attention to the instrument, and a sight signal, to show what has been
signalled, whether a too high, or too low temperature, or simply when a suitable tem-
perature has been reached, so that further heating or further cooling, as the case may
be, may be arrested. Again, it may be less important to know at the time when a
certain high, or low limit, or a given temperature, may have been reached, than to
know subsequently what previous extremes have been reached, or what the tempera-
ture has been during all of a given period of time, whether variable, or constant.
Finally, even all of the above named points of observation, or means of observation,
may be required or desired together, that is, sight indication, sound alarm, sight
signalling, and recording. For examples of instances of such single and combined
uses of the thermoscope, as aboved enumerated, may mention, first, a manufactory;
A
or other building, heated by steam, wherein an engineer is constantly stationed.
simple receiving thermoscope may be placed in the engine or boiler room, and be
sufficient, since the engineer is supposed to be always present to watch the simple
indications of temperature in the room or rooms heated by the steam controlled by
him, and ready at all times to adapt the fire to the occasion. But, again, the keeper
of a hot house may not only want to know the temperature therein whenever he looks
at his receiving thermoscope, but, especially at night, may want to know by sound
alarm, calling immediate and unfailing attention thereto, whenever the temperature is
getting too low, or too high. Then again, the engineer of the heating room in a
hospital, having many wards, or rooms, requiring constant vigilance over all, would
find a series of sight signals for the receiving thermoscope of the several wards or
rooms, to indicate the limits of the required temperature, important, while sound alarmıs
would be of little or no use. Then, in the case of an observatory, wherein the tem-
peratures of different localities, some at great distances apart, are indicated by electro-
magnetic thermoscopic transmission, it is principally important to record from hour
to hour the temperature of the several localities. And in other cases, such as with
incubators, and wherever it may be injurious or fatal to go above or especially below
certain limits of temperature, it may be very desirable to continually indicate the
current temperature on the thermoscope scale, to signal the extreme limits to the
sight, in the day time, to sound alarms in the night time, when such limits are reached,
and to record the temperature at all times, for subsequent inspection, to see if the
place has been injuriously affected by too great heat or cold since the previous inspec
tion. Finally, a series of receiving thermoscopes may be grouped together,
indicating temperatures from various places and for various purposes, some requiring
one method of observation, some another, some two or more, or even all the modes of
observation and record, thus conveniently combining or uniting all in one compact
apparatus. Thus one purpose of my invention is to arrange in one compact frame
or case, in groups or series, or individually, electro-magnetic receiving thermoscopes,
each having one or more of the capabilities above set forth, for all the purposes
required in one locality. Thus in the accompanying drawings, Fig. 1, represents a
front view Fig. 2, a rear view; Fig. 3, a top view, and Fig. 4, a horizontal section
:

page_text: looking upward, in a plane indicated by the line 1-1 Fig. 1, of a case containing four
receiving electro-magnetic thermoscopes differently supplied as to the devices above
enumerated, and indicating a suitable method of combining any desired number of
such thermoscopes compactly and conveniently. In these figures, are represented four
receiving thermoscopes A, A', A", A, arranged in a case B, two being shown as
placed upon a lever shelf or support, a, and two on an upper shelf or support, b.
This arrangement will indicate a proper method of grouping any greater number of
thermoscopes.
The thermoscope A, is represented as simply an indicating thermoscope, having a
current-temperature index C, highest-temperature index D, and lowest-temperature
index E. The thermoscope A¹, is shown as an indicating thermoscope, with a current-
temperature index C, and a self-recording device G, combined therewith. The
thermoscope A, is represented as provided with a current-temperature index C, and
a sound alarm device H, combined therewith, for high and low temperature extremes.
The thermoscope A¹¹, is represented as provided with a current-temperature index C,
and a sight-signalling device, I, combined therewith, for high and low temperature
extremes. The bell sounder J, for the sound-alarm device, is represented as being
placed centrally at the top of the case B, but may be located on any other part of the
case or frame where there is space for it.
A single bell or sounder is sufficient for any number of all of the thermoscopes in
a case. In the arrangement here shown, however, only one thermoscope is provided
with a sound alarm and connected with the bell, or sounder, the object of the case and
grouping shown being to illustrate all the different improvements of this part of his
invention united in one arrangement.
I show here, also, on the face of each thermoscope, spring clasps c, c, each secured
at its upper end to the face plate, for holding removable and replaceable cards, or
slips of paper, on which may be noted any desired memoranda, such as the room or
place containing the transmitting thermoscope with which that particular receiving
thermoscope is electrically connected, or any particular temperature which one may
choose to note thereon. Each thermoscope, also has, or may have, a knob or bolt, d,
connected with a circuit closer and breaker, of the construction shown in Figs. 21 and 22,
or otherwise suitably constructed, whereby to connect or disconnect the alarm or
signal device at will. Where the sound alarm is connected with two or more of the
thermoscopes in one case or group, there is preferably a knob, or key, e, operating a
general circuit closer and breaker, for connecting or disconnecting all the alarms at
once. A glass door shuts in and shields from dust and moisture all the thermoscopes,
and instruments, or devices, connected therewith, and still affords access to the front
parts of the instruments at will. The case also has a rear door, as shown, to gain
access to the operating parts of the thermoscopes and the instruments combined there-
with. Fig. 2, represents a rear view of the thermoscopes constructed and arranged as
shown in Fig. 1, the rear door being shown swung aside. In this view, I do not show
the operative mechanism of the thermoscopes complete, since they form no part of
the present invention, but I show such operative parts as belong to the present inven-
tion relatively arranged in the case, or holding frame. I also indicate therein a local
battery L, for actuating the sound-alarm and sight-signalling devices on their
respective thermoscopes, and wires g, h, for connecting the battery with the said
thermoscopes respectively. I likewise indicate a local battery M, for sounding the
alarm bell or sounder J, and wires i, i, connecting the battery with the bell-sounding
magnets. In Fig. 3, is shown the alarm bell and the binding posts k, k, for attaching
the line wires connecting the several receiving thermoscopes in the case with their
respective transmitting thermoscopes at any distances away. In Fig. 4, which is a
view looking upward under one of the shelves or tables which support the thermo-
scopes, I show a sliding lid, under the shelf, for gaining access to connecting wires
running along the lower side of the shelf, and then shielding the same when slid
beneath them. I show the lid partly drawn out, to expose the wires to view.
I show, in Fig. 2, a good and desirable construction of the case for the purpose of
this invention; the shelf compartments, in which the thermoscopes are located, occupy

page_text: the central part of the case; and there are marginal compartments, or spaces, m, m,
all around the thermoscopic compartments, in which the connecting wires and their
binding posts are placed, whereby ready access is gained thereto without disturbing
the thermoscopes, or instruments combined therewith, and without exposing the
wires to view through the glass front of the case. In the upper marginal compart-
ment is shown located the alarm-bell magnet j, and this is a convenient location
therefor; but it may be located in some other compartment, if preferred.
I now proceed to describe the means for bringing the sound-alarm device into
action by the receiving thermoscope, or thermoscopes, when the prescribed extremes
of temperature are reached at the transmitting station, or stations, by reference to
Figs. 5, 6, 7, and 8, of the drawings; in which Fig. 5, represents a front view of a
receiving thermoscope provided with means for bringing the sound-alarm into action,
and in connection therewith the sound-alarm device; Fig. 6, a rear view of the same;
Fig. 7, a top view thereof; and Fig. 8, a side view of the same. In these views are
shown a face plate N, which conceals the most of the parts of the receiving thermoscope
and which may support the index-shaft d'; and upon the said shaft the current
index C, is mounted, indicating the true temperature of the transmitting thermoscope
on the arched, or concentric, scale W. This face plate N, is removably secured to
the shelf a, on which it rests. The index C, is represented as, and is preferably,
supported at its ends by two tubular standards or posts, 0, 0, secured to the shelf a,
above referred to. Upon the arch scale W, concentric with the operating shaft d', of
the thermoscope, are adjustably secured, by screw clamps n, n, or otherwise, two
extreme-temperature circuit closers p, r, for bringing the alarm device into action,
when the said extremes of temperature are reached at the transmitting thermoscope.
These circuit closers are readily adjustable upon the index plate by loosening the
clamp screw and sliding the clamp along the plate to the desired degrees of
temperature, and then tightening the clamp screws again, for each circuit closer, so
that the alarm device may be brought into action at any degree desired, which may
be changed at will, the index itself closing the circuit by which the alarm device is
brought into action when it reaches the required degree on the scale. I have, in the
drawings, shown one circuit closer adjusted to 100 degrees Fahrenheit, for the
highest extreme, and 40 degrees Fahrenheit, the point at which the other circuit
closer is adjusted, for the lowest extreme; such, for instance, as may be desired
for a green house. The construction of these circuit closers is peculiar, and is
substantially as follows:-A short distance to the rear of the scale plate W is located
a bar, or rod, R, of corresponding arched shape to that of the scale plate itself, and
substantially parallel therewith. This arched bar is metal, or a good conductor
of electricity, and forms part of the local-battery circuit by which the sound alarm
is brought into action by the thermoscope, and it is insulated from its support as
indicated at o, o, Figs. 7, and 8, by means of a gutta-percha, or india-rubber blocks,
sleeves, or washers, or equivalent means. There is mounted on, and pivoted to, each
screw clamp n, of the circuit closers, and insulated therefrom a bent rod Q, which
rests by its backwardly extended horizontal part upon the arched bar R, there being
weight p, at the rear end thereof, and if necessary, as heavy as required to insure a
certain metallic contact between the rod and bar for conveying an electric current.
The forward arm of the rod is turned downward, preferably back of the scale plate,
and reaching below it; and an arm 7, projects forward therefrom, beneath the scale,
and carries on its forward end a very light spring", of spiral form, or equivalent
shape, by which it retains its proper position at all times. It may be moved aside a
little by an extremely minute force, the arrangement being substantially as shown in
Fig. 5. Just above the spring r, but not in contact therewith, and preferably in the
same plane, is another very light coil, or spiral spring s, of like construction,
mounted at its inner end upon an arm or pin t, projecting forward from the scale
plate W, and in metallic contact therewith. The adjacent edges of these two coil
springs are at a little distance apart, so that a small wire or metallic pin passing in
between them will come in contact with both springs simultaneously, and thereby
make metallic connection between the two springs and close an electric circuit
a

page_text: between the scale plate and the arched bar. Then, projecting from the rear side of
thermoscope index C, is a pin or stud u, so located in position thereon that, when the
index is brought centrally opposite to either circuit closer, the said pin will come in
between the two spiral springs thereof, in contact with both, and thus close the circuit
in which the two springs are situated, and thereby sound the alarm, indicating that
the limit of temperature has been reached. The extreme lightness of these springs
causes them to yield to the contact pin, and to press against it on opposite sides
without offering any considerable resistance to the movement of the thermoscope
index, which is thus made the instrument for sounding the alarm. For some parts of
the arched bar R, or in metallic connection therewith as the binding post v, a wire w
extends to, and forms metallic connection with, the wires of an electro-magnet S,
mounted in a frame T. Suspended from an army, projecting backward from the face
plate N, of the thermoscope or otherwise suitably supported. It is by means of this
electro-magnet, when a current of electricity is passed through it from the battery L,
Fig. 2, that the circuit of the alarm battery M, same figure, is closed, and the alarm
bell sounded thereby. The remainder of the circuit, back to the battery L, is from
the other side of the electro-magnet S, through a wire, leading most conveniently to
one of the standards O, supporting the scale of the thermoscope, thence down through
the said post, but insulated therefrom, and thence by the wire h, to the battery.
The device for closing the alarm circuit by the action of the electro-magnet S, is
substantially as follows:-In any proper position, suitably a little back of the face
plate N, as shown, are secured, to a suitable support and insulated therefrom and from
each other, two metallic strips or plates a, b, crossing each other and at a very little
distance apart, one plate a, at least, being thin and flexible, so that it may, with
little pressure applied to its rear side, be brought into contact with the other plate.
These two plates are respectively in metallic connection with two wires, /, /, of the
alarm battery M, so that, when the plates are separated, the circuit is broken, and
when they are brought into contact with each other, the circuit is closed; and the
alarm bell continues to be sounded as long as the two plates remain in contact, or as
long as the index pin keeps the circuit closed between the spiral springs to bring those
two contact plates together and thereby sound the alarm bell. The plate a¹, is made
not only thin but elastic or otherwise equivalently constructed, so that, when the
pressure against it is removed, it will spring back, out of contact with the other plate,
and again break the circuit and stop the ringing of the alarm bell. The two plates,
as shown especially in Fig. 23, are secured at their lower ends to their insulated
support and are situated quite near together, their upper ends crossing each other and
presenting the general form of an inverted letter V, as shown most clearly in the said
Fig. 23. The rear plate is moved forward to make contact with the forward plate, by
the following means, or their substantial equivalent:-the electro-magnet S, has an
armature e below its poles, at the lower end thereof, the armature being pivoted
at el, e, to the supporting bracket or frame.
From the forward, vibrating side or arm of the armature, a rod f', extends upward,
and from the upper end or part of this rod, a sliding rod, or bar, g', reaches close to
the upper or free end of the rear contact plate, a', the sliding rod or bar being mounted
in bearings or supports h¹, supported by the bracket arm of the thermoscope. The
forward end of the sliding rod or bar gl, is tipped with gutta-percha, india-rubber, or
other electric non-conducting material h, so that, when it touches the contact plate,
there will be no shunting of the electrical current out of its circuit. The arrangement
of the rods, and y', in relation to the magnet and contact plates is such that, when
the magnet becomes magnetized by the closing of the circuit of the local battery L,
as above specified, the rod f, on the armature c', is raised, and the rod g¹, is slid
forward, bringing its tip h, against the rear contact plate a', and pushing it forward
into contact with the other contact plate, thereby closing the alarm circuit and
sounding the alarm bell. And when the circuit of the battery L, becomes broken, as
set forth above, the magnet S, becomes demagnetized again, when a retracting
spring, or its equivalent, will draw the sliding rod g', back again, thus allowing the
rear contact plate to separate from the other contact plate, thereby breaking the alarm-

page_text: battery circuit, and stopping the ringing of the alarm bell. The extent of retraction
produced by the spring, may be regulated by a set screw k¹. In carrying out the
detailed construction of the above circuit-closing device, any equivalent of the various
parts, known to mechanics may be employed, as will be readily understood by those
skilled in the art. To avoid an unnecessarily continued ringing of the alarm bell, at
any time, the alarm circuit may be broken by drawing out the circuit-closing device d,
shown in Figs. 21 and 22, in detail; as this device is a simple and effectual circuit
closer and breaker, I have shown its construction in the said detail views. A rigid
metallic plate, is attached to the wood of the shelf or support m³, which is or should
be a non-conductor of electricity. A thin elastic or otherwise movable plate n', is
also secured to the shelf or support. These two metallic plates are respectively in
metallic connection with two parts i, i, of the alarm-battery circuit wire, so that by
bringing the two plates into contact with each other the circuit will be closed, so far
as this part of the same is concerned; and when they are separated, the circuit will
be broken in any case. A push rod, o, with the knob, is inade to push back the
plate n', and it is held in that position by a shouldered feather p', on the rod, bearing
against the outer side of the holder, when the rod is turned to the position, as shown
at the right hand in Fig. 21, and by the dotted lines in Fig. 22. A coiled spring
acts to throw the bolt forward, and uncouple the plates, n', when the bolt is turned
round to a position to allow the shouldered feather to pass through an aperture in
the holder for the purpose, as shown at the left hand in Fig. 21, and by full lines
in Fig. 22.
For means to carry out my sight-signalling device in combining with a receiving
thermoscope, reference is now made to Figs. 9, 10, 11 and 12, of the drawings. In
these views, Fig. 9, represents a front view of a receiving thermoscope, provided with
a sight-signalling device; Fig. 10, a rear view of the same; Fig. 11, a top view
thereof; Fig. 12, a side view of the same. In these views, also, I have omitted the
operative works of the thermoscope proper, except that I show a connecting worm
wheel H, and index shaft d¹. For the purpose of sight signalling in connection with
the thermoscope, only one local battery is required, which may correspond exactly
with the local battery L, for the sound-alarm device, and is marked by the same letters
of reference in the present case. Also exactly similar circuit closers P, P, for high
and low extremes of temperature are, or may be, used, to be brought into action by a
pin on the index C, of the thermoscope, in just the same way as above described.
The circuit-closing arm, constructed and operating as in the former case, rests on a
similar arched rod R, at the rear of the scale plate W, and parallel therewith, all
substantially as before described in the sound-alarm apparatus; and the local-
battery circuit is completed in the same way, through an electro-magnet S, also
arranged and operating in the same way as in the sound-alarm device. All parts thus
corresponding with the sound-alarm device are designated by like letters in the
drawings. The sight-signal device proper is constructed and operated in connection
with the local-battery circuit connections and thermoscope index, as above set forth, as
follows: In the face plate N, of the thermoscope is an opening, of the shape shown
in Fig 9, or other suitable form. This aperture is large enough to enable a signal to
to be seen through it, at the farthest required distance. A little way back of the
aperture, is located a separate screen plate s², for concealing parts beyond it; and,
before it, is to be displayed the sight-signal. It may be made of the same material as
the face plate of the thermoscope, or may have a similar surface, for more clearly
distinguishing the signal when brought into view through the aperture 1. For tho
sight-signal itself I represent two movable plates U, U, located at the opposite sides
of the aperture so as to be capable of being moved toward each other, for displaying
them through the aperture, or away from each other, out of sight, behind the face
plate, at the sides of the aperture. The front surfaces of these signal plates may be of
a bright color, or otherwise marked, to contrast clearly and sharply with the surfaces
of the face plate of the thermoscope and the screen plate behind. The remainder of
the signalling device consists in means by which the signal plates are exposed to view
through the aperture ¹, or withdrawn from sight, on closing or breaking the local

page_text: | battery circuit, as the case may be. These signal plates are respectively suspended
from, or attached to, horizontal swinging arms or levers, t, swinging on a vertical
pivot u, and extending back to a position over the vertical rod, in front of the
electro-magnet S, where they cross each other. At this point there are longitudinal
slots, e, through the arms, as shown in Fig. 11, through which projects the said
vertical rod, projecting up from the armature c', of the electro-magnet. The
construction and material arrangement of all these parts are such that, when the
armature is raised by the magnetized electro-magnet, the upper end of the rod, is
swung forward and caused to traverse the slots,, in the arms, t, t, the inclination
of which slots is such that this forward movement of the said rod causes the forward
ends of the arms to move toward each other sufficiently to bring the signal plates
together, or to bring them into view through the aperture in the face plate of the
thermoscope. And when the electro-magnet S, becomes again demagnetized by the
breaking of the signal-battery circuit, on account of the index pin of the thermoscope
passing away from the spiral springs of the circuit closer, the retracting spring',
or its equivalent, brings back the armature rod 1, to its former position and thereby
separates the signal plates and conceals them behind the face plate of the
thermoscope.
From the above description of the sound-alarm and sight-signal devices, it is obvious
that both may be combined in one receiving thermoscope, and may operate simul-
taneously and in harmony, and with very slight complexity of mechanism over that
for either separate, since nearly identical devices may be used for both, except as to
the mere ultimate function of each device. Thus the actuating local battery, the
circuit connections, and means for closing the circuit may be the same for both
devices, and only one of each part will suffice for both purposes together. And,
further, the same and a single electro-magnet S, a single armature c¹, and armature
rod, with the retracting spring, thereof, as referred to in each of the devices
relating thereto above, may be used for both devicos operating together. In many
cases it is desirable to have both devices in each thermoscope. In order to show
definitely how the two devices may be united as one, I represent in Figs. 13, 14,
and 15, a thermoscope provided with both devices complete and operating in harmony
together. Fig. 18, represents a rear view of the apparatus; Fig. 14, a top view of
the same; and Fig. 15 a side view thereof. The parts represented by the same
letters of reference correspond with the like parts in each of the devices before shown
and described separately, and fulfill the functions of both simultaneously, so that it
will be seen how completely and perfectly the devices work together without
duplication of corresponding parts. I also represent in these figures the operative
parts proper of the receiving thermoscope itself.
In cases where the sound-alarm and sight-signal devices are united in one
thermoscope, it may be, at times, advisable or desirable not to use the sound-alarm,
even when, at other times, both may be desirable, as for instance, in the day time, the
sound alarm may be preferably dispensed with, whereas, at night, it may be very
desirable, as well as the sight signal. For adapting the combined instrument to this
purpose, the sound-alarm battery circuit i, is provided with a circuit breaker and
closer, shown in Figs. 21 and 22, and above described, so that the alarm device may
be cut out by hand, at any time, and again restored to action, as required.
Figs. 16, 17, 18, 19 and 20, represent various views of a receiving thermoscope
provided with a temperature-recording device actuated or controlled by the thermo-
scope. In these views, Fig. 16, represents a front view of the thermoscope; Fig. 17,
a rear view of the same, showing so much of the thermoscope movement only as is
required to show the connection of the recording device therewith, and the means by
which the said device is controlled thereby; Fig. 18, a top view of the recording
device and its operating gear; Fig. 19, a central, vertical section through the face
plate of the thermoscope, showing the means by which the movement of the
thermoscope actuates the recording device, in connection with a clock movement for
regularly moving the paper on which the temperature is recorded; Fig. 20, a side

page_text: view of the main parts of the recording device, together with the upper part of the
thermoscope.
For the purpose of this device, I employ a tablet strip, or roll, A4, of paper, or
other material, of sufficient width to have ruled thereon longitudinal lines, in a series,
to form a scale for all the degrees of temperature ever required to be recorded thereon,
and as long as convenience may dictate. The tablet roll is mounted on any convenient
part of the thermoscope, where a slow and uniform longitudinal motion may he
imparted thereto. I have shown it mounted horizontally across the upper part of
the instrument, on two vertical rollers a", ", so that it may be unrolled from one,
and, at the same time, rolled upon the other, and the portion exposed between the
rollers be kept smooth and slightly taut. As shown in the drawings, the tablet roll is
first wound upon the passive roller 6, at one side of the thermoscope, and then gradually
unwound therefrom by winding it upon the active roller a", at the opposite side of
the thermoscope. In order to give this roller a", a uniform, slowly revolving motion,
for moving the tablet roll regularly along, I have shown in the drawings the following
construction: A cog-wheel c", on the lower end of the roller, or its shaft, gears into
another cog-wheel d¹¹, on a vertical shaft e", which extends downward, preferably
through one of the hollow standards O, which support other parts of the thermoscope
devices, as before specified. The base of this standard is enlarged as at ", made
hollow, and broken or cut away sufficiently, at one side, to allow a suitable connection
to be made between the said shaft and the power which is to drive it. This power is
a clock movement B', shown in outline in Figs. 16, and 17; and a belt g, passes
from a pulley, on the said vertical shaft to the center staff or shaft, of the clock,
all as shown, or in any equivalent manner. By this construction, as the said shaft of
the clock slowly revolves, a slow and uniform movement of the tablet roll from right
to left is produced thereby. A cross scale on the tablet roll marks the hours and
divisions of the hours of the passing time. The tablet roll is adjusted so that the
marking of the hours and parts of hours thereon shall indicate the true time at a
vertical line, on the thermoscope, along which line a pencil, pen, or other
marker, C, is adapted to move, as shown in Fig. 16. This marker slides vertically
on a guide rod, or way, ", suitably mounted just in front of the tablet roll, as shown,
or otherwise with similar effect. A light coiled spring, or its equivalent, such as a
counter weight, is arranged to raise the marker when the opposite movement of the
same is not in action. This opposite movement is effected by the current-temperature
index C, of the thermoscope, so as to record the exact temperature, as indicated by the
said thermoscope, continually upon the surface of the tablet roll.
The construction for the purpose is as follows:-From the marker C, a small
cord, chain, or band, m", extends downwards to the index shaft d¹, of the
thermoscope, and is wound upon a pulley or drum ", on the said index shaft. It is
wound, one or more turns, around the said pulley or drum, and, in order that the
coils thereof may be kept exactly in place, and not interfere with one another, it is
best to make a slight spiral groove around the periphery of the pulley, or drum, as
shown in Fig. 19. The entire arrangement is such that, when the thermoscope
index moves toward the rising-temperature end of the thermoscopic scale, it winds
the connecting cord, or chain, on the pulley or drum, thereby drawing the marker
downward and recording a line on the tablet roll corresponding to the temperature
indication of the thermoscopic index and scale; and as the thermoscopic index moves
towards the falling-temperature end of the thermoscopic scale, the connecting cord or
chain is correspondingly unwound from the pulley or drum of the index shaft, so that
the marker is then raised by the action of the counter spring. Of course, the rate of
this winding and unwinding movement of the connecting cord, or chain, is arranged
to exactly correspond with the marked degrees or lines on the tablet roll. Immediately
back of the tablet roll is a vertical, plane, back plate or surface, against which the
tablet roll bears where the marker bears on the tablet roll; and the marker is adjusted
by a screw, as shown, or its equivalent, and may have an elastic pressure against the
tablet, or tablet roll, sufficient to insure a legible marking thereon. It is obvious that

page_text: the marking movement may be the reverse in its indications to that shown and above
described, so that the rising temperature may be indicated by the upward movement
of the marker, and vice versa. For convenience, instead of making the degrees of
temperature at different places on the tablet roll, a permanent scale, or scales D', D¹,
may be used, being located just outside of the rollers on which the tablet roll is wound,
the index lines on this scale, or scales, corresponding in height and distance apart
with the lines on the tablet roll. The pulley or drum on the index shaft of the
thermoscope should be mounted loosely upon the shaft, so as to be capable of turning
thereon, and a screw or other clutch G, be employed to couple it to the shaft. This
is for the purpose of adjusting the position of the tablet roll to the marker in
connection with the thermoscopic index. The central temperature line of the tablet
roll may be either marked zero, if for recording the atmospheric temperature, or, if
for special indoor or other use, where the temperature is subject to regulation, it may
be the medium temperature desired.
In Fig. 24, I show, in one general, rear view, four receiving thermoscopes arranged
in one case, all equipped with both sound alarms and sight signals, and one only
showing the main parts of a temperature-recording device. I do not, in this device,
show the thermoscopic movements, except the index shaft d', and worn wheel H', by
which it is rotated. In Fig. 2 I show a single local battery for the sight-signal and
sound-alarm work, and wires connecting the same with the four instruments, to
illustrate how one local battery may serve for an indefinite number of such
thermoscopes. I also show only one alarm bell and one alarm battery, to illustrate
how one of each suffices for any number of instruments. The wires of corresponding
function are all marked with like letters of reference, and it is readily seen how one
battery has connection with each of the instruments, so as to close the circuit through
either alone, whenever its temperature index closes that part of the circuit; and
neither of the other instruments will have its circuit closed thereby, either as to the
local battery, or the main battery. The arrows by the side of the wires and along
other parts of the local circuits indicate the directions of the battery currents along
the same.
The main parts of all the circuit wires are shown as located in the marginal
passages or chambers of the case, as before set forth; and portions thereof extend
beneath the shelves which support the thermoscopes, to reach the proper parts of the
several instruments from the marginal passages, while, also, parts of the local-battery
wires extend through one of each of the hollow standards belonging to the several
instruments, the said parts of wires being insulated from the said standards.
In Figs. 25, 26, 27, 28, 29, 30, and 31, I represent an electro-magnetic transmitting
thermoscope suitable for all the purposes of this invention.
In these drawings, Fig. 25, is a central, vertical, axial section of the vertical,
cylindrical part of the transmitting thermoscope, and a vertical transverse section of
the horizontal, cylindrical part thereof, the thermostatic coil and the other parts
within the double cylindrical case being shown in side or end elevation; Fig. 26, a
vertical, axial section of the upper portion of the lower, cylindrical part of the
instrument, some of the interior parts being shown in side view, some of the parts
being left out; Fig. 27, is cross section of Fig. 26, additional parts being left out in
the said Fig. 26; Fig. 28, a transverse, vertical section of the upper cylindrical
part of the instrument, in a plane indicated by the line 44, Fig. 27; Fig. 29, a
section in part, corresponding to the section in Fig. 27, showing a modification of
the construction of the connecting gear between the shaft of the thermostatic coil
and the index shaft; Fig. 30, a section corresponding to the section in Fig. 28,
showing the same modification as in Fig. 29; Fig. 31, a view in detail of a secondary
circuit-closing device.
In these drawings, A, represents the lower, vertical cylindrical part, and B, the
upper, horizontal, cylindrical part of the case; C, the thermostatic coil, in the lower
cylindrical part; D, the index in the upper, cylindrical part; E, the vertical
thermostatic shaft, or spindle; and F, the horizontal index shaft of the transmitting
thermoscope.

page_text: In this organization, I connect the two shafts by a suitable positive gearing, by
which the desired relative speeds of the two shafts may be obtained. In Figs. 27,
and 28, I show a worn gear, a¹, on the thermostatic coil shalt E, gearing directly
into a worm wheel b, on the index shaft. In the modified construction shown in
Figs. 29, and 30, I show the worm gear a, gearing into an intermediate worm wheel b,
which in turn gears into a pinion c, on the index shaft. I employ two electro-
magnets, G, H, (Figs. 25, and 26.) located in the upper, cylindrical part of the
instrument, and mounted on the plate d, back of the dial of the index D; the former
magnet G, being in the increasing-temperature circuit, and the latter magnet H,
being in the decreasing-temperature circuit, in the main line reaching to an
observatory, or station. These electro-magnets, through their armatures, e, f, and
their armature lovers, I, J, actuate respectively pawls, g, h, and detents i, j, which
take into ratchet wheels, K, L, on shafts k, 1. The pinions m, n, on the shafts k, l,
gear into an interior set of gear teeth, o, of an annular, or ring, circuit closer, M.
which is held in position by the said pinions, being at opposite sides thereof, and by
two grooved friction pulleys, p, p, running on fixed pivots, 9, 7, and bearing
against the outer edges of the ring, in positions a quarter of a circle distant from
the said pinions or thereabout. The organization of this annular circuit closer, and
its operation in connection with associated parts, are as follows:-The ring is
made with two metallic parts r, s, separated by an insulating strip, t, inserted between
them, as shown. The outer part, r, of the ring has metallic connection with one or
both of the fixed pivots, q, q, one or both of the friction pulleys, p, p, and by one or
two elastic metallic strips, u, attached to the said pivots, and hearing against the
periphery of the ring; and one or both of the said pivots are put in circuit by the
wire, 2, of the increasing-temperature electro-magnet G. The inner part, s
the ring, M, has also metallic connection with the wire 3, of the decreasing-
temperature electro-magnet, H, through one or both of the pinions m, n, shafts k, l,
and a metallic supporting bridge or bracket, e, which is mounted on, but insulated
from, the back plate, d, of the instrument, and in which the said shafts have
their bearings, one end of the magnet wire, 3, being attached to the said
bridge. The arrangement of the parts thus far described is such that, at each
breaking and closing of the increasing-temperature circuit, the annular circuit
closer, M, will be moved the distance of one degree of the temperature scale in
the proper direction, by the action of the electro-magnet G, in that circuit; and
at each breaking and closing of the decreasing-temperature circuit, the said annular
circuit closer will similarly be moved one degree of the temperature scale in the
opposite direction.
of
Thus far, however, no provision for closing and breaking the circuits has been
described. Here the following construction is employed. The thermostatic coil,
its shaft, E, and the index shaft, F, geared to the said shaft E, are used, whereby
each change of one degree of temperature of the air in which the instrument is
situated, turns the said index shaft, F, one degree of the temperature scale, in one or
the other direction, according to whether the temperature is increasing or decreasing,
these movements of the shaft corresponding and harmonizing with those of the
annular circuit closer, M, above specified. Then, upon the rear end of the index
shaft, F, is secured an arm, N, having an elastic tip, or extension, w, which is
arranged to touch either one of two pins or projections x, y, one projecting from the
outer part, r, of the ring circuit closer, and the other projecting from the inner
part, s, of the said ring, as shown in Figs. 25, and 26. The tip of the arm, as shown
extends between the said pins, and it is so arranged between them that it can have
one degree of movement and a slight additional movement, as little as practicable
in moving from one to the other. The index shaft, F, on which this arm is mounted
is in metallic connection with the battery wire, or return wire, of both circuits; so
that, when the tip of the arm touches the pin, z, it closes the increasing-temperature
circuit, and, when the tip touches the pin, y, it closes the decreasing-temperature
circuit.

page_text: :-
The movement resulting from the combined mechanism above described is as
follows:
Suppose the temperature of the atmosphere where the instrument is located is
increasing, and that the pin a, on the circuit closer is one degree in advance of, or
away from, the circuit-closing arm, N; as soon as another degree of increasing
temperature is reached, and consequently the arm has moved forward one degree, it
touches the pin,, and closes the increasing-temperature circuit. The armature lever
of the magnet, G, is thereby moved, and the annular circuit closor, M, is moved one
degree, thus moving its pin, ., one degree away from the arm, N, again, and
consequently again breaking the circuit. The next increasing degree of temperature
again brings the arm into contact with the said pin, x, and again closes the circuit
with a repetition of the resultant action. Thus the movements are repeated as long
as the temperature increases.
The movement is precisely the same in the opposite direction, when the temperature
is decreasing, the arm, N, then coming successively into contact with the pin, y, on
the annular circuit closer, and being separated therefrom by the retreating movement
of the said circuit closer.
In Figs. 26, 27, 28, and 31, I show an additional device whereby a local battery is
used for actuating the electro-magnets, G, H, and by them the circuit closer, M, so
that the main-line battery wire may be relieved of this work, and thus be better
adapted to transmit thermometric indications to long distances.
All the parts
above described are here retained, and, in addition, the following device is
employed-Two vibratory, generally obtuse-angled levers, O, P, are mounted, as
shown, upon a tubular pivot a', (Fig. 27.) around the index shaft, F; and they
are connected to the armature levers, I, J, of the clectro-magnets by means of
arms, b, c, projecting laterally from the respective levers near their upper ends, and
wires or rods, d, e, connecting the said arms respectively with the armature levers,
as represented in Fig. 26. Here the wires, 2, and 3, of the respective electro-
magnets and return wire, 4, for the two, are connected with the local battery, Q,
so that when the circuits are closed by the circuit closing arm, N, this battery
operates the annular circuit closer, M, and also said arms, O, P, which are
circuit closers and breakers for the main line circuits, in the following manner :-
The increasing temperature wire, 5, of the main line is parted at the instrument,
and its two ends at the parting are respectively connected with two posts or stud
plates, f, g, attached to, but insulated from, the plate d, of the instrument, and
therefore from each other. Similar post or stud plates, h¹. ¹, for parting the
decreasing temperature line wire, Fig. 6, are attached in a similar way to the plate, d,
the two sets of posts or stud plates being suitably placed in different positions, as
shown, to suit the positions of the lower ends of the levers, O, P. On the
respective plates f¹, h', are secured projecting posts, R, R, upon the outer end of
which respectively are pivoted, at j. bell-crank levers, S, S, as shown in Fig. 31;
and on the other plates, g',, respectively are secured studs, T, T. The relative
positions of the post, R, and the stud, T, of each set are shown in the said Fig. 31 ; and
the associated lever, S, is arranged to have one arm, l, bear upon the outer stud, as
shown, being pressed thereon, by a light spring, ', or its equivalent. Thus the
circuit through the wire is completed and held closed by this device. Platinum or
silver contact points m', m', are placed on the stud or lever, as shown in the same
figure. Now the lower arins of the respective levers, O, P, have their lower
ends, n', n', (insulated, so as not to interfere with the main circuits,) brought into
such relation to the bell crank-levers S, S, as to bear against the other arm, o, of
each; and that, when the levers are moved by the respective magnet levers, I, J,
they will lift the respective arms, 1, 1, of the bell-crank levers from the studs, T, T,
and break the main line circuits, one or the other, as the case may be. The breaking
of the local circuit, which immediately follows the action of either lever, O, or P,
causes the lever to be retracted, and thus the main circuit is immediately closed
again, producing the requisite transmission of the temperature indications, to the
distant observatory or station. The two circuit wires 5, and 6, are connected with

page_text: the single return or battery wire, 7, of the main circuits. It is obvious that it
makes no difference whether the levers, O, P, are caused to lift the levers, S, S,
by the direct positive action of the armature levers, I, J, of the electro-magnets,
In the arrangement
or by the counter springs, , 2, of the armature levers.
shown in the drawings, the latter way is shown, the springs, z, z, moving the
levers, O, P, positively; and these springs are strong enough to overcome the lever
springs ki, ki
For local distribution, this device may be in separate transmitting circuits, the
battery Q, being a separate line battery; and since the levers OP, may be
multiplied, or have different branches, the instrument thus may fulfill; as
transmitting instrument, the additional functions of a receiving instrument.
it
In Figs. 32 and 33, I show a incans for moving the recording tablet or paper roll
of a thermoscope by a time movement electrically transmitted as by the transmitting
instrument above described; and, also, in connection therewith, an electro-magnetic
thermoscopic receiver.
the same.
Fig. 32 is a top view of the main parts of the device; and Fig. 33, a rear view of
An electro-magnet B, is placed in the main circuit, represented by the
wires, of the transmitter. Its armature lever D, has a pawl p, taking into ratchet.
teeth o, o, on the periphery of a ratchet wheel H. The armature lever is retracted by
A detent
a suitable spring, and the pawl p, by a spring r.
9, also takes into the
ratchet teeth, pivoted on an L-shaped, or equivalent, brackets, attached to the plate
or-frame of the instrument, and retracted by a spring t.
When this pawl works upward, as shown in Fig. 32, suitable limiting shoulders k,,
on the detent, are employed in connection with a stud l, on the bracket, or equivalent
means, to limit the motion of the detent, and prevent its falling out of position.
On the shaft d, of the ratchet wheel H, is mounted one of the rollers, the active
roller J, of the tablet roll K, on which the thermoscopic indications are recorded, the
tablet roll being unwound from a passive roller L, and passing in front of a plate or
plane surface M. The tablet roll is to have proper cross markings and numberings,
to indicate the hours and minutes thereon, as the tablet roll is moved regularly along
by the clock-time movement electrically transmitted. For the purpose of scientific
observation, this tablet roll, indicating, in connection with a suitable index or pointer
in the proper position, the correct time at any moment, may serve as a clock in itself.
But for the purpose of showing time for ordinary use, a minute hand will, or may be
placed on the shaft d, in connection with an hour hand and clock face of the usual
construction, as in the clock time receiver above set forth.
As the tablet roll K, passes from one roller to the other, it passes around two guide
rollers, m, m³, respectively placed at the two ends of the plate M, and serving to
bring the tablet, roll into exact position before the plate and to diminish friction. The
vibration of the armature lever D, as the main circuit is closed and broken by the
clock-time transmitter, turns the active roller J, regularly and moves the tablet roll in
regular time. The armature lever D, also may serve as a circuit closer and breaker
for a relay circuit, to transmit the time indications to another station or stations, by a
relay battery, as for a verifier circuit. Thus one wire n', of the relay circuit may be
connected with the metallic bracket on which the said armature lever is pivoted, and
the other wire n', with the L shaped bracket s, which is insulated from the armature
lever. A contact point o¹, on the armature lever strikes a contact pin p', on the said
bracket, so that, every time the armature lever is moved by the magnetizing of its
magnet, this relay circuit is closed. A limiting stop s, against which the armature
lever strikes, in its retracted movement, has an insulating tip to prevent the closing of
the relay circuit in this return movement.
The thermoscopic movements in connection with this tablet-roll movement, driven
by the time movements is sufficiently indicated in Figs. 32, and 33. An increasing-
temperature electro-magnet N, is in the increasing-temperature circuit, indicated by
the circuit wires, and a decreasing-temperature electro-magnet O, is in the
decreasing temperature circuit, indicated by the circuit wires s', s. The armature
lever P, of the electro-magnet. N, carries a pawl t', which takes into a ratchet wheel u¹,

page_text: on a shaft R, which carries a pinion ¹, that gears into a cog wheel S, on the
thermoscopic index shaft T.
Similarly, the armature lever Q, of the electro-magnet O, carries a paw! w¹, which
takes into a ratchet wheel a¹ on a shaft which carries a pinion y', that gears into
the said cog-wheel S. Suitable detents =, ¹, also take into the ratchet wheels u', 2.
A cord, or its equivalent is wound at one end, around the index shaft T, and at its
other end is secured to a marker X, which is arranged to slide transversely in front
of the table roll K. When the index shaft is turning in the direction to wind the
cord thereon, it moves the marker in one direction over the tablet roll; and when
the index shaft is turning in the direction to unwind the cord therefrom, a counter
spring Y, (shown in a fractional view under Fig. 33,) draws the marker in the
opposite direction across the tablet roll. The whole construction is so proportioned
and arranged that for every turning movement of the temperature-index shaft T, to
the extent of one degree of temperature, a corresponding movement is made on the
tablet roll by the marker to the extent of one degree of temperature according to the
scale of the said tablet roll.
In Figs. 34, 35, and 36, I show means by which any desired number of fablet rolls
may be actuated at any place, and their time movements regulated by a single electro-
magnet, situated in the main transmitting circuit of a clock-time transmitter, or
in a relay circuit, closed and opened by the closing and opening of the main
circuit.
In these drawings A', represents a driving shaft, to be turned by a weight, or
spring, so as to endow it with all the power necessary to turn all the tablet rollers,
which may be connected therewith. I show one set of tablet rollers B', B', (the
tablet rolls and other parts belonging to the same being omitted in the drawings),
driven immediately by this driving shaft which has two worm screws all, all, gearing
respectively into worm wheels 6, 61, on the respective rollers. It is obvious that
any required number of other tablet rollers may be turned in a similar way by an
extension of the driving shaft. But it is not necessary to drive the seis of tablet
rollers directly by the said driving shaft, and it would not generally be convenient
or desirable to arrange them all in one line. Any position of the tablet rollers may
be provided for by means of other shafts, driven directly or indirectly by the main
driving shaft. To illustrate this, I show a transmitting shaft C, geared to the
driving shaft A', by bevel gear wheels c", ". There may be tablet rollers
driven directly by this shaft C, though I have shown none in the drawings. A third
shaft D, however, is shown geared to the transmitting shaft (, by bevel gear
wheel, and having worm screws g, gl, thereon, gearing into worm
wheels h, respectively upon two other tablet rollers B, B1. In this way, the
number of tablet rolls driven by one weight or spring may be indefinitely
multiplied.
For the purpose of regulating the movement of the driving shaft A, by the electro-
magnetic time-transmitter, I employ an escapement wheel E', suitably connected
with the driving shaft by intermediate cog gear ",", so as to obtain the requisite
speed of the shaft. There may be various constructions of an escapement for the
purpose But I have represented one which is both simple and effective. The escape-
ment wheel is in the form of a plane faced disk, having two concentric rows of
escapement teeth, or projections, k", ", on its face, as shown the said escapement
teeth in the two rows, alternating with one another in position, and preferably having
al triangular form. An escapement lever G', has a pallet projection m which engages
with these escapement teeth and has a similar triangular form in cross section, but
has its base inverted, so as to be opposite to the bases of the teeth on the escapement
wheel. This escapement lever is an armature lever, being attached to an armature H',
of an electro-magnet I', placed in the clock-time transmitting circuit, or in a relay or
local circuit controlled by the clock-time transmitter. The escapement lever is
suitably pivoted at n", so that its escapement end vibrates to the requisite extent as
it is alternately moved in one direction by the attraction of the electro-magnet, and
in the other direction by a counter spring o", dependent on the alternate closing and

page_text: 11
breaking of the electric circuit, passing through the magnet. Suitable adjusting
stops p, q, limit the motions of the escapement lever in both directions. There
may be a circuit closer connected with the escapement lever for a relay circuit by
having a contact point 1, on the said lever, and making one of the adjusting stops, p",
the other contact point.
At
The diagram Fig. 37, illustrates the operation of this escapement movement.
the left-hand, the pallet projection m", (shown in cross section,) is shown holding
against one of the outer row 1, of escapement teeth, while one of the inside row
of the escapement teeth has just passed beyond the pallet projection. In this position
the escapement lever has passed to the extremity of its left-hand movement. In the
middle position shown, the escapement lever has passed half way to the right, and
just cleared the escapement tootli ", allowing the escapement wheel to move round
till the next tooth, of the inner row strikes the lever projection which is carried
under the same, as shown in the right-hand position, where the escapement lever has
reached the extremity of its right-hand movement. Thus, at every, movement of the
escapement lever, either to the right or to the left, it allows one of the teeth of the
escapement wheel to pass.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. In combination with an electro-magnetic receiving thermoscope which indicates
the temperature of a distant room or place, a sound-alarm device brought into action
by the said receiving thermoscope when a predetermined degree of high or low
temperature is reached by the indicator of the termoscope, as herein set forth.
2. In combination with an electro-magnetic receiving thermoscope which indicates
the temperature of, a distant room or place, a sight-signal device brought into action
by the said receiving thermoscope, when a predetermined degree of high or low
temperature is reached by the indicator of the thermoscope, as herein set forth.
3. In combination with an electro-magnetic receiving thermoscope which indicates
the temperature of a distant room or place, an automatic temperature-recording
device actuated or controlled by the said receiving thermoscope, as herein set forth.
4. In combination with an electro-magnetic receiving thermoscope which indicates
the temperature of a distant room or place, a sound-alarm device and a sight-signal
device, both brought into action by the said receiving thermoscope when a prede-
termined degree of high or low temperature is reached by the indicator of the
thermoscope, as herein set forth.
5. In combination with an electro-magnetic receiving thermoscope which indicates
the temperature of a distant room or place, a sound-alarm device and a sight-signal
device, both brought into action by the said receiving thermoscope when a prede-
termined degree of high or low temperature is reached by the indicator of the
thermoscope, and an automatic temperature-recording device actuated or controlled
by the thermoscope, as herein set forth.
6. The combination, in one frame or case, of two or more electro-magnetic receiving
thermoscope which indicate the temperature of two or more distant rooms or places,
an alarm bell sounded by a battery, one or more sound-alarm devices, and one or more
sight-signal devices brought into action by one or more of the receiving thermoscopes,
when predetermined degrees of high or low temperature are reached by the indicators
of the thermoscopes, as herein specified.
7. The combination, in one frame or case, of two or more electro-magnetic receiving
thermoscopes which indicate the temperatures of two or more distant rooms or places,
an electrically sounded alarm bell, one or more sound-alarm devices, and one or more
sight-signal devices, brought into action by one or more of the receiving thermoscopes
when predetermined degrees of high or low temperature are reached by the indicators
of the thermoscopes, and one or more temperature-recording devices actuated or
controlled by one or more of the thermoscopes, as herein specified.
8. A case in which two or more electro-magnetic receiving thermoscopes which
indicate the temperature of distant rooms or places, are mounted, having central

page_text: compartments in which the said thermoscopes are located on suitable shelves, or
supports, and marginal compartments in which the connecting wires that conduct
the several electric currents for the thermoscopes are located, the said compartments
being accessible from the outside by one or more doors, as herein set forth.
9. The combination with the increasing and decreasing temperature wires, of the
light coiled springs », s, and the thermoscopic index C, provided with a pin or
projection u, forming an electric circuit-closing device, substantially as herein
specified.
10. In combination with the increasing and decreasing temperature circuit wires
of an electro-magnetic thermoscope and the thermoscopic index, the arched scale W,
and the circuit closers P, P, adjustable thereon, substantially as and for the purpose
herein specified.
11. The combination of the archod scale W, forming part of an electric circuit, the
adjustable circuit closors P, P, each provided with a pivoted rod Q, and the arched
bar R, forming part of the same electric circuit and insulated from the said arched
scale, substantially as and for the purpose herein specified.
12. The combination of the electro-magnet S, the arched scale W, connected there-
with and the arched bar R, a rod 1, projecting from the armature of the said electro-
magnet, a slide rod y', moved by the rod f', and the two contact plates a', 6', for
closing the circuit of the alarm-bell battery, substantially as and for the purpose
herein specified.
13. The combination of an alarm bell, a galvanic battery, actuating the bell
sounder, contact plates located near, but insulated from, each other, one of which
plates is movable, and means, as the slide rod G, for moving one plate into and out of
contact with the other, substantially as and for the purpose herein specified.
14. The combination of the face plate of a thermoscope having a signal opening
therein, a shield plate back of said opening, and a signal plate or plates, adapted to be
moved into position in front of the shield plate, substantially as and for the purpose
herein specified.
15. The combination of an electro-magnet S, in the electric circuit which is broken
and closed by the thermoscopic temperature-index, a signal plate or plates o, u,
arms t, t, by which the signal plates are moved, and means, as the armature c¹, and
rod, whereby the said arms of the signal plate are actuated by the said electro-
magnet, to bring the signal plate into view, substantially as herein set forth.
16. The combination of the single electro-magnet S, armature rod", slide rod g',
contact plates a, b, swinging arms t, t, and signal plates u, v, substantially as and for
the purpose herein specified.
17. The combination of one or more electro-magnetic thermoscopes, one or more
sight-signal devices, and one or more sound-alarm devices brought into action by the
temperature index or indexes of the said thermoscope or thermoscopes, a local battery
and circuit for sounding an alarm bell, a local battery and circuit for closing the circuit
of the alarm battery and for bringing into action the sight-signal device or devices,
and a key or hand circuit closer and breaker, whereby the sight-signal or signals and
the sound alarm may be actuated together, or the sight-signal or signals alone, as
herein set forth.
18. The combination of an electro-magnetic receiving thermoscope, a tablet roll
mounted on or near the said thermoscope and adapted to have a continuous movement
in one direction, a clock movement for moving the tablet roll, a marker having a
movement across the tablet roll, in front of the same, and a cord or its equivalent
connecting the marker and a pulley or drum on the index shaft of the thermoscope,
as herein set forth.
19. The combination of the scale index and increasing and decreasing temperature
circuit wires of an electro-magnetic thermoscope, the winding and unwinding
rollers a, b, geared to the winding shaft e", clock movement C, and helt g",
passing from a pulley on the center shaft of the clock, to the pulley on the said
shaft e, substantially as and for the purpose herein specified.

page_text: 20. The combination of the scale index, increasing and decreasing temperature
circuit wires and battery of an electro-magnetic receiving thermoscope, a tablet roll
adapted to have a longitudinal movement and having numbered time-scale cross lines
and temperature-scale longitudinal lines thereon, clock-work adapted to impart
longitudinal movement to the said tablet roll, and a marker having a movement
transversely over the tablet roll and actuated by the index of the thermoscope,
substantially as herein set forth.
a
21. The combination of the scale index, increasing and decreasing temperature
circuit wires of an electro-magnetic receiving thermoscope, a tablet adapted to have
a longitudinal movement and having longitudinal temperature lines marked thereon,
one or more separate, numbered temperate scales at the end or ends of the moving
roll, clock-work adapted to impart a longitudinal motion to the said tablet roll, and
a marker having a transverse movement, over the tablet roll and actuated by
the index of the thermoscope, substantially as and for the purpose herein
specified.
22. The combination, in an electro-magnetic receiving thermoscope, of the index
and index shaft of the said thermoscope, a tablet roll having a longitudinal movement,
a marker adapted to have a tranverse movement over the tablet roll, a pulley or drumm
coupled to the index shaft, and a cord winding upon the said index pulley, and
connecting the said pulley and the marker, substantially as and for the purpose herein
specified.
23. The combination of a thermostatic coil index shaft, means for connecting the
said coil and shaft, circuit-closing arm of the index shaft, circuit-closing ring, electro-
magnets, armature levers, and means for connecting the said armature levers and
circuit-closing ring, substantially as and for the purpose herein specified.
24. The combination of a thermostatic coil, coil shaft, index shaft geared to the
coil shaft, circuit-closing arm on the index shaft, and provided with an elastic tip,
ring circuit closer constructed with two parts insulated from each other and
respectively provided with contact pins, electro-magnets respectively in the increasing
and decreasing temperature circuits, armature levers, pawls, ratchet wheels on shafts,
and wheels on the said shafts and gearing into the circuit-closing ring, sub-
gear
stantially as and for the purpose herein specified.
25. The combination of a thermostatic coil, coil shaft, index shaft, worm and
worm wheel connecting the said shafts, circuit-closing arm on the index shaft, circuit-
closing ring made in two parts insulated from each other and respectively provided
with contact pins, electro-magnets, armature levers, and means for connecting the
said armature levers and circuit closing ring, substantially as and for the purpose
herein specified.
26. The combination of a separate battery, electro-magnets in separate electric
circuits connected with the battery, armature levers, vibrating levers respectively
connected with the armature levers, levers adapted to open and close other separate
line circuits, and counter-springs, substantially as and for the purpose herein specified.
27. The combination of a thermostatic coil, index shaft, means for connecting the
said coil and shaft, circuit-closing arm on the index shaft, circuit-closing ring, electro-
magnets, armature levers, means for connecting the said armature levers and circuit-
closing ring, separate battery in the circuits of the said electro-magnets, vibratory
levers connected respectively with the said armature levers, levers closing other
electric circuits, and counter springs, substantially as and for the purpose herein
specified.
28. In the thermoscopic recording mechanism actuated by the clock-time trans-
mitter, the combination of the active tablet roller moved by the armature lever of
the electro-magnet in the time-transmitting circuit, the passive tablet roller, the
tablet roll, and the loose, anti-friction rollers around which the tablet roll passes
between the tablet rollers, as specified.
29. The combination of a mechanically turned driving shaft, tablet rollers actuated
directly by the said driving shaft, an escapement wheel geared to the driving shaft,

page_text: and an escapement or pallet lever controlled by an electro-magnet in a clock-time
transmitting circuit, for the purpose herein specified.
30. The combination of a mechanically turned driving shaft, an escapement wheel
geared to the driving shaft, an escapement or pallet lever controlled by an electro-
magnet in a clock-time transmitting circuit, an additional shaft or shafts turned by
the driving shaft, and one or more sets of tablet rollers, driven by the said additional
shaft or shafts, for the purpose herein specified.
31. The combination of a mechanically turned driving shaft, tablet rollers actuated
by the said shaft, an escapement wheel geared to the driving shaft and provided
with two concentric rows of alternately-arranged escapement teeth, and a vibrating
escapement or pallet lever, engaging with the said escapement teeth, and actuated by
an electro-magnet in the circuit of an electro-magnetic clock time-transmitter,
substantially as and for the purpose herein set forth.
Dated this 4th day of March, 1887.
HENRY JANSEN HAIGHT.
Hasletine, Lake & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: Date of Application, 18th Mar., 1887.
Specification Accepted, 21st Oct.. 1887
COMPLETE SPECIFICATION.
Improvements in Electro-magnetic Clock-time Transmitters.
I, HENRY JANSEN HAIGHT, of 284 Madison Avenue in the City, County and State
of New York, United States of America, Gentleman, do hereby declare the nature of
this invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
My invention consists, first, in a new and improved means of transmitting by
Electro-Magnetic power to one or more distant stations or localities, the time indications
of a standard or other clock, and of showing the same time on clock faces at the stations
or localities, without requiring clock work at the said stations or localities, and thereby
avoiding the necessity of any winding of clocks, or other attention thereto; second,
in the combination with the said clock-time transmitter of a comparer, or verifier,
located in the vicinity of the transmitting clock, whereby the correctness of the
transmission of the time to the distant stations or localities is verified.
In the accompanying drawings:-
Fig. 1, represents a top view of so much of a standard or other clock as is necessary
for the present purpose, and of the electro-magnetic time-transmitting mechanism
combined with the clock.
Fig. 2, a rear view of the same.
Fig. 3, a rear view of the time verifier employed in connection with the, clock and
transmitter.
Fig. 4, a rear view of the time-transmitting mechanism, showing the additional circuit-
closing mechanism for connecting it with the verifier.
Fig. 5, a diagram, exhibiting the electric-circuit connections between the clock
transmitter, the distant stations or localities, and the verifier.
Referring to Figs. 1, and 2, I first describe the clock-time transmitter without other
parts.
Let A, represent a clock movement, or so much thereof as is necessary to show its
connection with the electro-magnetic time transmitter; a, indicating the face, b, c, the
minute and hour hands respectively, and d, the central, or minute-hand, shaft
Upon the rear side of the back plate e, of the clock, is mounted the electro-magetion,
time-transmitting mechanism, the essential parts of which will now be specified.
I Price 8d 1

page_text: First, an electro-magnet B, of the ordinary, or any other suitable construction, is
properly attached to the clock.
Its armature C, is mounted on a lever D, which is pivoted on a pivot projecting
from the said clock plate. The counter-balancing end of this lever, is preferably
weighted, as at g, so that the position of its pivot, may be as far from the electro-
magnet as practicable. I also prefer to employ a light counter-spring h, adjustable
in tension, as at i, although it is evident that either an adjustable counter-weight or
spring may be made to serve the whole purpose.
This armature lever actuated by the electro-magnet, and counter-weight or spring,
serves to close and open the electric circuit, represented in the figures by the broken
wires j, j, which transmits the time indications of the clock to distant clocks, or clock
hands. The lever also serves to turn a circuit-closing repeater, as follows:-
The clock-work and frame are insulated from the electro-magnet, its armature
lever, etc., by interposing insulating material at their respective attachments to the
back plate e, as indicated by heavy black lines in Fig. 1. The central, minute-hand
shaft, or spindle, d, of the clock is of sufficient length to extend to the rear side of the
electro-magnetic mechanism, but does not come in metallic connection with the same,
except at the proper times for closing the circuit of a local battery E, the circuit.
wires, k, k, of which connect at one end with the clock frame, and at the other end
with the electro-magnetic mechanism, including the wires of the electro-magnet, also
in the circuit, as indicated in the figures by wires and dotted-line connections. As
part of this circuit, there is a circuit-closing repeater F, which ordinarily consists of a
disk or wheel, mounted to turn freely on a tubular pivot 1, attached to the plate
surrounding the clock shaft d, but not being in metallic contact or connection with it.
On the face of the repeater is a projecting contact pin m; and projecting radially
from the clock shaft d, is an arm n, just back of the repeater, but not in contact
therewith, and so located that it may strike the pin m, as it moves forward impelled
by the clock-work. It has a suitable platinum or equivalent contact tip, so as to
make good electrical connection with the pin, when it strikes the same, to close the
local circuit.
and
The circuit-closing repeater F, has ratchet teeth o, o, on its circular edge, of sufficient
fineness or distance apart to correspond with any prescribed portion of an hour,
indicated by a complete revolution of the minute hands, before the face of the clock.
Thus, if there are sixty ratchet teeth on the repeater, the latter will be moved every
minute if there are one hundred and twenty ratchet notches, the repeater will be
moved every half minute; and so in proportion with any desired number of ratchet
teeth. The repeater is turned one notch at a time, by a pawl p, pivoted upon the
armature lever, D, a light spring q, serving to hold it to the teeth of the repeater.
A detent r, pivoted on a brackets, takes into the ratchet teeth of the repeater disk,
to prevent any backward motion of the repeater. The detent is held to the ratchet teeth
by a suitable spring t. Thus organized, whenever the minute hand of a clock advances a
prearranged part of an hour, as a minute, or half a minute, for instance, its shaft d, carry-
ing the circuit-closing arm n, moves the said arm forward into contact with the pin m, on
the repeater disk, thereby closing the local circuit, and causing the electro-magnet B, to
be magnetized, whereby the armature lever D, is brought down, and the pawl p, thereon
is made to move the repeater disk one notch forward, thus moving the contact pin m,
forward again, away from the contact arm n, and breaking the local circuit, so that the
armature lever is again raised by its counter spring. Again, as the minute hand
moves forward another division, the circuit closing arm n, comes once more into contact
with the pin m, and closes the local circuit, whereby the pawl p, moves forward the
repeater disk another notch, and breaks the circuit again. Thus the repeater disk is
continually moved forward one notch at a time, as fast as the minute hand of the
clock moves round an equal part of a circle, and closes the circuit, so that the repeater
disk makes a revolution each hour. Or it might turn only a part of a revolution, or
more than one revolution, each hour, provided that the instrument is so arranged that
a certain number of notches on the disk will correspond with a complete revolution of
the minute-hand shalt, indicating an hour of time,

page_text: It is only necessary, then, that the main circuit, extending to the distant clocks to
be moved or regulated by the transmitting clock, shall be closed and broken
simultaneously with the local circuit, as above set forth, in order to make all of the
distant clocks in the main circuit to synchronize with the said transmitting clock.
For this purpose, the armature lover D, is made to close the main circuit, as it
descends, and a counter spring, or its equivalent, breaks the circuit, as the said
armaturo lever again rises.
In the drawings, I show a main-circuit closer constructed and arranged as follows:-
A pivoted lever u, of bell-crank, or other, form, is connected with one wire j, of the
main circuit, and an adjustable contact pin v, is connected with the other wire j, of
the main circuit, as clearly shown in Fig. 2.
An adjustable presser finger w, is attached to the armature lever, consisting, as
represented, of a screw passed down through the lever, and provided with an insulated
tipa, to press on the top of the circuit-closing lever u. Suitable platinum or equivalent
tips are attached respectively to the lever u, and pin v, to produce good electrical
connection. Thus, when the local circuit is closed, as above specified, and the
armature lever is drawn down, its presser finger w, depresses the lever u, and causes
it to make contact with the pin e, and thereby close the main circuit. A counter
spring y, again raises the lever u, as soon as the armature lever is raised, and so
breaks the main circuit, thus accomplishing the purpose above specified.
The lever u, and stud in which the pin v, is mounted, are properly secured to the
clock plate e, but are insulated therefrom. An adjustable stop z, is located above the
armature lever D, to limit its upward movement, and regulate the distance through
which it vibrates, as the local battery circuit is closed and opened.
Any construction of time receiving clock, or clock-hand movement with a clock
face, in which the minute-hand shaft or spindle may be turned by a ratchet wheel
thereon and a pawl actuated by an electro magnet in the main circuit of the clock
transmitter, may be employed.
The general construction of the verifier, Fig. 3, may be the same, or substantially
similar to that of the clock transmitter above described, but without a clock movement,
since the verifier is a time receiver, and the minute-hand shaft is turned by the
electro-magnetic impulses.
I have indicated by corresponding letters of reference on the drawing such parts
as correspond in function with similar parts on the transmitter, including the electro-
magnet B, armature lever D, clock face a, minute and hour hands b, c, minute-hand
shaft d, and back plate e.
Two battery circuits are also connected with this verifier, but differently arranged
from those of the transmitter. Thus the wires a¹, a', which connect with the wires of
the electro-magnet B, are connected with the main circuit, while the wires k, k, are
in the local circuit of the transmitter and are marked by the same letters. The
armature lever D, in this instrument, is insulated and forms part of the local
circuit.
The end of the lever also presses upward against a key lever G, which also is
insulated and in the local circuit, and turns on a pivot b¹. The end of the key lever
in turn presses upward against an adjustable pin cl, in a binding post d', to which one
end of the local circuit wire k, is attached. The key lever has a suitable spring e', by
which it is kept pressed down upon the armature lever D; while the retracting
spring h, of the armature lever is of sufficient strength to raise the lever and also press
up the key lever to the contact pin c, against the force of the spring e', of the said key
lever. But when the armature lever is depressed by the action of the electro-magnet B,
when its circuit is closed, the spring e', holds the key lever G, down upon the armature,
thereby separating it from the contact pin e', and breaking the local circuit.
As soon
as the circuit connected with the main circuit and passing through the electro-
magnet B, is again broken, the armature lever is again raised, and closes the local
circuit.
A pawl p, on this armature lever takes into ratchet notches o, o, on the periphery
of a disk, or wheel, H; this ratchet wheel has a connection with the armature lever D,

page_text: similar to that of the repeater disk in the transmitter. But its function is different,
since it is mounted directly upon the centre shaft d, of the minute hand, and is thereby
made to move the minute hand by the closing and breaking of the circuit passing
through the electro magnet B. The detent y, fulfills a function corresponding with
that of the detent q, of the transmitter.
In connection with this verifier, the transmitter has an additional feature of
construction, as shown in Fig. 4, besides what is shown in Figs. 1 and 2. This
consists in an additional circuit closer and breaker operated by the armature lever for
a second local circuit. All the other parts of the transmitting instrument remain the
same, as indicated by like letters of reference. But the insulated tip æ, of the presser
finger w, may be enlarged, so as to depress the additional circuit closer upon its
adjustable contact pin g', instead of using a separate presser finger which however
might be employed. The wire ', for this local circuit is connected at one end with
the contact pin g. Thus, it will be seen that, when the armature lever D, is depressed
by the closing of the local-battery circuit, as before set forth, the said lever will depress
both circuit closers and f¹, and thereby simultaneously close the main circuit and
the additional local circuit, provided for by this construction of the transmitting
instrument.
The operation and function of the verifier, in connection with the transmitting
instrument and the main circuit leading to distant stations or localities, where receiving
instruments are placed in the said main circuit, will be understood by reference to
Fig. 5, which is a diagram showing the connections of the said instruments by a
suitable arrangement of the main and local circuit.
The diagram also illustrates the manner of multiplying the number of relay and
receiving instruments to an indefinite extent.
I show, at the upper, right-hand part of the figure, the outlines of the principal
parts of the transmitting instrument; under the same, corresponding parts of the
verifying instrument; to the left of the transmitting instrument, the principal parts
of the two receiving instruments, in different places in the main circuit of the
transmitting instrument; and still further to the left, outlines of two other receiving
instruments, with dotted-line circuit-wire connections with the other instruments
shown, to indicate the manner of the indefinite extension of the number of the
receiving instruments. Like letters indicate parts of these instruments corresponding
with like parts of the instruments described in the former figures of the drawings.
I show the local battery E, and how the regular local-circuit wires k, k, connect
the transmitter and the verifier.
I also show how the wires h', ', of the second local circuit, connect the transmitter
and the verifier. The main-circuit wires j, j, are represented in the complete circuit
through the transmitter, two receivers, the main battery I, and the ground connections.
Also, by dotted lines, there is shown an extension of the main circuit wires to two
other receiving instruments. An additional circuit represented by the wires a', a¹,
connects the transmitter, the receiving instruments, and the verifier, for the purpose
of the verification.
Part of this circuit may be coincident with the main circuit, as shown, and the
main battery 1, may serve for both those circuits. Also parts of the second local
circuit may coincide with parts of the regular local circuit, as shown; and one local
battery suffices for both.
I will now trace the successive movements of the instruments, and the courses of
the circuits, to illustrate the operation of the instruments. When the circuit-closing
arm n, of the transmitter, at any time, reaches the contact pin m, on the repeater
disk F, the regular local circuit is closed, and thereby the electro-magnet B, is
magnetized, and the armature lever D, is depressed. This movement of the armature
lever presses down the second local circuit closer f¹, and closes the second local
circuit, which also passing through the electro-magnet B, keeps the armature lever
still depressed for the time being.
This is the essential purpose of this second local circuit. At the same time, the
armature lever closes the main circuit. This circuit, passing through the electro-

page_text: magnets B, B, of the receiving instruments, the said electro-magnets are magnetized,
and their armature levers D, D, are all simultaneously depressed; and by a suitable
pawl and ratchet construction, they turn the respective ratchet wheels H, H, of these
instruments, mounted on the minuto hand shafts of the same, just as set forth in the
description of the verifier, thereby transmitting the clock time, as required.
These simultaneous movements of the armature levers of the receiving instruments
following instantly on the depression of the armature lever of the transmitter, close
the verifier main circuit, which passes through the several armature levers of all the
instruments except the verifier, and through the electro-magnet of the verifier. Each
of these armature levers (except that of the verifier,) by their depression, strikes upon
the circuit closing pins, as shown, which are respectively connected with the
wires a¹, a¹, of this circuit. Upon the closing of this circuit, the electro-magnet B, of
the verifier is magnetized, thereby depressing its armature lever D, and moving the
ratchet wheel H, of the verifier and causing the minute hand thereof to designate the
corresponding progress of the time.
The depression of the arinature lever D, of the verifier also allows the depression
of the key lever G, as above set forth, thereby breaking the second local circuit, and
permitting the armature lever of the transmitter to be raised, ready for the next
movement, as described. Thus, as long as all the instruments are in working order,
these movements go on regularly, and the time indications of the verifier agree
exactly with those of the standard clock of the transmitter, and so long it is known
with certainty, at the transmitter station, that all of the receiving clocks are keeping
time correctly.
But in case any one of the receiving clocks is out of order, or, from any cause, the
main circuit is not closed and opened regularly by the action of the transmitter, then
the verifier circuit, which is connected with, or dependent on, the working of the
main circuit, is not closed, the verifier magnet is not magnetized and consequently
its clock bands do not move, the key lever G, is not depressed, and the local circuit,
passing through it to the transmitter, is not broken, so that the armature lover of the
transmitter is not raised. But the standard clock continues to go, and keep time, the
circuit-closing arm n, bearing against the contact pin m, and thereby moving the
repeating disk F, round on its pivot.
Thus, since, under failure to close the verifier circuit the verifier clock hands do
not move, it will immediately be known, by its not keeping time with the standard
clock, that the apparatus is not in working order, and must be attended to.
In the diagram, I show by a dotted line j,j, that a return wire may be used,
instead of a ground return in the main circuit. Where the receiving clocks are all
in the same building as, or an immediate vicinity of, the transmitter, the whole main
circuit between the several instruments may properly be through wires.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I claim is :-
:-
1. In combination with a clock movement, an electro-magnet actuated by the
closing and breaking of a local battery circuit, an armature lever vibrated by the said
electro-magnet, and provided with a pawl which takes into ratchet teeth on a circuit
closing and breaking disk, revolving freely on a pivot around the central shaft of the
clock movement, the said revolving disk, a circuit-closing arm attached to the said
central clock shaft and adapted to close the local-battery circuit by touching a contact
pin or projection on the said circuit breaking and closing disk, a main-battery circuit
leading to a distant station or stations, and means for closing and breaking the said
main circuit by the vibrations of the said armature lever, substantially as herein
specified.
2. The combination of the clock movement, local battery-circuit, electro-magnet,
armature lever, revolving circuit breaking and closing disk turned by the said
arinature lever, circuit-closing arm on the center shaft of the clock, main-battery
circuit leading to a distant station or stations, means for closing and breaking the
main circuit by the said armature lever, and one or more clock faces and hands at

page_text: the said distant station or stations, respectively connected with the said clock hands
and in the main circuit of the transmitting mechanism, one or more armature levers
and pawls, and one or more ratchet wheels on the respective minute hand shafts,
and actuated by the respective armature levers and pawls, substantially as herein
specified.
3. The combination of the clock-time transmitting mechanism as specified, one or
more clock-time receiving mechanisms, as described, a main-battery circuit connecting
the transmitting and receiving mechanisms, and a time verifier, as set forth, connected
by electric circuits with the said transmitting and receiving mechanisms, substantially
as and for the purpose herein specified.
4. The combination of the clock-time transmitting mechanism and one or more
clock-time receiving mechanisms as described, a time verifier, two local circuits
connecting the transmitting mechanisms with the verifier as and for the purpose
specified, a main electric circuit connecting the transmitting and receiving mechanisms,
and a main derived circuit, as specified, connecting the receiving mechanisms, verifier,
and transmitting mechanism, substantially as herein set forth.
5. The combination of the clock-movement of the clock-time transmitter, the circuit
closing arm on its central shaft, a freely revolving circuit breaking and closing
repeating disk, having a contact pin thereon, a time verifier as specified, a local-
battery circuit connecting the transmitter and verifier, an electro-magnet in the local
circuit and connected with the transmitter, an armature lever actuated by the said
electro-magnet adapted to turn the said repeating disk, and a second local circuit
connecting the transmitter and verifier and closed and broken by the said armature
lever, substantially as and for the purpose herein specified.
6. The combination of the clock-time transmitter, one or more clock-time receivers,
a clock time verifier, electric circuits, as set forth, connecting the said instruments,
and a circuit closing and breaking key automatically actuated by the armature lever
of the verifier, as specified.
7. In the clock-time transmitter, the combination of the electro-magnet, the
counter-weighted armature lever, the pawl on the said armature lever, the freely
turning repeating disk on a tubular pivot surrounding the center shaft of the clock,
and provided with ratchet teeth which engage the pawl of the armature lever, the
contact pin on the said repeating disk, and the circuit-closing arm on the said clock
center shaft as set forth.
8. In combination with the clock-time transmitter, one or more clock-time receivers
and the main electric circuit connecting the same, one or more relay circuits connected
with the respective clock-time receivers, and contact points in the said relay circuits
for closing and breaking the said relay circuits by the respective armature lovers of
the receivers, substantially as herein set forth.
Dated this 27th day of August 1887.
HENRY JANSEN HAIGHT.
Haseltine, Lake & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.