IMPROVEMENTS IN TELEGRAPHIC RECORDING APPARATUS
Year: 1880

page_text: LETTERS PATENT to Theodore Marshall Foote, of Brooklyn, New York, United
States of America, but now of 8, Southampton Buildings, London, for an
Invention of "IMPROVEMENTS IN TELEGRAPHIC RECORDING APPARATUS."
PROVISIONAL SPECIFICATION left by the said Theodore Marshall Foote at
the Office of the Commissioners of Patents on the 30th October 1880.
THEODORE MARSHALL FOOTE, of Brooklyn, New York, United States of America,
but now of 8, Southampton Buildings, London. "IMPROVEMENTS IN TELEGRAPHIC
RECORDING APPARATUS."
This Invention relates to improved mechanism for recording in a legible manner
despatches, messages, or other communications transmitted by means of electricity,
and consists in various improvements hereinafter described for causing the letters,
figures, or other characters forming the message or communication to be printed
upon a piece of paper in a better manner than is obtainable by any of the methods
or mechanism heretofore in use, and an important feature of my said Invention
consists in the fact that I am enabled thereby to print the message or cómmuni-
cation on paper in the form of a sheet instead of upou long narrow strips, as
heretofore practised, which strips are ordinarily cut into lengths and pasted upon
a sheet.
.
My said Invention is more particularly designed for comparatively short circuits,
and will be found of great advantage for recording stock exchange quotations
and the like, but it may also be used or adapted for all ordinary purposes of
telegraphy.
In constructing an instrument or apparatus according to my said Invention, I
provide a roller of wood, metal, or other suitable material, around which the paper
to receive the impression passes. This roller is arranged upon a frame which slides
longitudinally along a bar, and is also capable of moving vertically. The said
roller is arranged to rotate upon its axis. At the lower part of the frame which
carries the said roller there is a toothed rack gearing with a toothed wheel, and
the motion of the latter causes the frame and roller to move from right to left in
order to present a different part of the paper to the type-wheel after any character
has been printed; the roller at each end is mounted in the extremity of a lever, and

page_text: these levers fit upon the bar and are made to rock in order to raise and lower the
roller. One of the the said levers has two arms, one of which extends downward
and lies near to a bar extending under the roller-frame, which bar is connected to
two levers, one at each end thereof, in such a manner that the bar will be capable
of rocking. The lever at one end of this lower bar has an arm projecting at right
angles thereto, the end of which forms the armature to an electro magnet, and
whenever the latter attracts the said armature the upper end of the last named
lever is thrown forward, and the bar striking against an arm projecting downward
from the roller frame causes the aforesaid roller to be pressed up against the type
wheel, and thus the paper receives the impression. There is a roller upon this
downwardly projecting arm, upon which the lower bar works or travels. After the
impression has been taken the roller falls, and as it falls it is moved from right to
left a distance sufficient for another part of the paper to be presented for the next
letter or other character by means of the toothed wheel hereinbefore mentioned
which engages in the rack. This operation is effected as follows, that is to say :-
This toothed wheel is situated on a shaft or spindle placed at right angles to the
axis of the roller, and underneath the latter and on the same shaft there another
toothed wheel. On or forming part of the lever which pushes forward the lower
bar there is a third arm, on the end of which is a pawl arranged to engage in the
last named toothed wheel. When the magnet attracts the armature this third
arm of the lever is thrown downward and the pawl rides over one tooth, and when
the armature is released the said pawl pushes the wheel around to the extent of
one tooth, and so the roller is advanced from right to left. This pawl is also in
connection with another lever which carries another pawl also engaging in the
same toothed wheel; this second pawl prevents the wheel from rotating in an
opposite direction. One end of this lever forms the armature to an electro magnet,
and the lever is so pivotted that when a current is sent through the said magnet the
lever is drawn down and the two pawls are raised so that the wheel is free. There is
also a weight connected with this shaft by means of a thread or cord, which weight
is designed to cause the roller to be drawn back from left to right when one line of
printing or as much thereof as is desired has been effected. As the roller travels
from right to left the said weight becomes gradually wound up upon an excentric
on the shaft, and is thus ready to act to draw the roller back to begin another
line when the roller has reached the end of its course towards the left hand. The
excentric is so arranged that the weight has greater power or leverage at the time
when it is required to do the most work. This weight is prevented from descending
during the movement of the roller from right to left by means of the aforesaid
second or stop pawl engaging in the toothed wheel as aforesaid, but when the
roller has arrived at the end of its course the electro-magnet in connection with
the lever carrying the two pawls is caused to attract the end of the said lever,
which lever thus lifts the said pawls, whereupon the weight comes into operation,
and by rotating the shaft in a contrary direction causes the toothed wheel gearing
with the rack to move the latter, and with it the roller, in the direction from left
to right so that it is brought into the required position for the cominencement of
a new line. If desired a spring may be used instead of a weight.
On
The roller is caused to rotate in the following manner, that is to say:-There is
a toothed wheel on one end of the said roller and a pawl engages therewith.
the armature end of the lever carrying the two pawls there is a projecting pin or
piece which, when the said lever is moved, operates this pawl to the extent of one
tooth, and consequently the wheel and roller are thus rotated a sufficient space to
cause the paper to be moved into position to receive a new line of printing. The
electro-magnet which operates the lever for withdrawing and rotating the roller,
that is to say, for causing the movement necessary to put the paper in position to
receive a new line is in a distinct circuit, and there is a special key or stud at the
sending station for operating it.
An important part of my said Invention consists in the means employed for
ensuring the unison of the type wheel with the transmitting instrument, so that

page_text: the correct characters may be printed at the receiving end of the line as they are
transmitted from the sending end, and for this purpose I employ mechanism con-
structed as follows, that is to say:-The type wheel is rigid upon one end of its shaft,
at the other end of which is a pinion designed to be driven by ordinary clockwork.
Upon the same shaft there is an escapement wheel having teeth on its periphery,
also teeth on the edge of its rim at right angles to the teeth on the periphery.
This escapement wheel is loose on the shaft, and at the rear of the said wheel there
is a spiral spring coiled around the shaft, which spring presses the escapement wheel
in a direction towards the type wheel, so that a pin rigidly attached to or forming
part of the shaft engages between the teeth on one side of the rim of the escapement
wheel, and when the latter is in this position it is compelled to rotate with the
shaft. Between the escapement wheel and the type wheel there is a disc with a
sleeve loose on the shaft, and in the sleeve there is a longitudinal slot into which
the aforesaid pin projects, therefore the sleeve and disc are capable of sliding along
the shaft and are compelled to rotate with the latter. In the disc there is an
aperture, into which a stud upon the end of one arm of a bent lever is designed to
enter, as hereinafter described. The other arm of this bent lever is so placed that
a stud on the roller-frame comes in contact therewith every time the latter is
drawn back to begin a new line, and if the aforesaid disc should not be in unison,
this stud instead of dropping into the aperture in the same will strike against its
face and slide the dise and sleeve, thus also causing the escapement wheel to slide
out of engagement with the pin on the shaft, but not away from the escapement
pallet or anchor, so that the said wheel will not revolve with the shaft until the
aperture in the disc comes round opposite the stud on the bent lever whereupon the
spiral spring aforesaid pressing upon the escapement wheel causes the same to slide,
and with it the sleeve and disc, so that the aperture in the latter is pushed over the
stud or pin on the bent lever; the parts are then in unison and the pin ou the
shaft engaging with the teeth of the escapement wheel, the latter rotates again.
The bent lever falls back so that the stud falls out of the aperture in the disc, and
is ready to operate again when the roller is again brought back. The escapement
wheel is operated in the well known manner by currents which are alternately
negative and positive. The escapement pallet or anchor is pivotted abovo the
escapement wheel, and at its upper end carries a permanent steel magnet, and
opposite the latter at each side thereof there is an electro magnet. The current
being alternately negative and positive, the escapeinent pallet or anchor is caused
to oscillate whilst the apparatus is in operation, and when a letter or other
character is to be printed, the depression of a stud or key at the sending end
causes the oscillation to be suspended momentarily whilst the letter is being
impressed. Whilst the type wheel is rotating in unison with the wheel at the
sending station, the intermittent currents pass through the electro magnet which is
designed to operate the lever for causing the moving of the roller, but the currents
are not strong enough to cause this magnet to attract its armature. When, however,
it is desired to print a letter or other character, the key or stud corresponding with
said letter or character at the sending station is held down momentarily so that
there is a longer time before the change of polarity occurs, and thus the magnet is
caused to attract its armaturo.
From the above description it will be seen that I employ four electro magnets,
two of which operato the escapement, one operates the mechanism to effect the
impression and to move the roller forward, and the other operates the mechanism
for moving or feeding the paper to receive a new line and for causing the roller to
be drawn back. The circuits are arranged as follows, that is to say :-One runs
through the escapement magnets and thence through the printing magnet, and the
other runs through the paper_moving or feeding magnets, both being completed in
the ordinary manner.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, and
of an Order of the Lord Chancellor filed by the said Theodore Marshall Foote
in the Great Seal Patent Office on the 6th May 1881.
THEODORE MARSHALL FOOTE, of Brooklyn, New York, United States of America
"IMPROVEMENTS IN TELEGRAPHIC
but now of 8, Southampton Buildings, London.
RECORDING APPARATUS."
This Invention relates to apparatus for recording in a legible manner despatches,
messages, or other communications transmitted by means of electricity, and consists
in various improvements for causing the letters, figures, or other characters, to be
automatically impressed or printed upon a sheet of paper in consecutive lines one
below another, instead of (as heretofore) in a single line upon a long narrow strip,
which is ordinarily cut into lengths and pasted upon a sheet of paper.
According to this Invention a sheet of paper is fed forward beneath a type-
wheel and drawn back to its starting position by a carrier or roller actuated in a
suitable manner to bring the sheet of paper when desired into the proper position
for the commencement of another line. An electro magnetic escapement serves to
turn the type-wheel, to which movement is imparted by a weight or by a spring
barrel through a train of clockwork in such a manner as to present the desired
letter for impression, after which a second electro-magnet acts upon the carrier or
impression roller to bring the paper thereon into contact with the type-wheel,
thereby producing the impression, and also to allow of the feed or movement of the
said carrier into the requisite position for the reception of the impression of the
succeeding letter or character.
of
After one line of characters has been thus printed or impressed upon the sheet
paper the carriage or impression-roller is returned by means of a third electro-
magnet to its starting position, and fed to the desired extent for the impression or
printing of the next line. Simultaneously with this return movement of the said
carrier or impression roller the type-wheel is liberated and turns so that the zero
point is presented at the place where the impression takes place, all the instruments
in the circuit being then in unison.
My Invention is illustrated in the accompanying Drawing, in which
Figure 1 is an elevation of the various parts of the said apparatus, arranged in
front or outside of the frame or casing of the same, and
Figure 2 is a front elevation partly in section of the interior of the said
apparatus, the face plate being removed.
Figure 3 is a side elevation partly in section on the line A, A, Figure 2.
Figure 4 is an end elevation of portions of the said apparatus in detail.
Like letters indicate the same parts throughout the Drawing.
The frame of the said apparatus consists of two plates 1, 1, connected by means
of suitable cross pieces or stays, some of which are formed by the pieces 2 that
serve to support the electro-magnets of the apparatus. The greater portion of the
said apparatus is mounted between and protected by the said plates 1, 1, the parts
which should be readily accessible being arranged in front of the face-plate. These
parts consist of the type-wheel 3 and the carrier or impression roller or cylinder
with their accessories.
I will first proceed to describe the impression roller or cylinder and its
controlling devices and other accessories which serve to produce the above
described effects, and will then describe the manner in which the type-wheel is
actuated to present the desired letters for the impression, and also the various
parts of the apparatus for effecting this object.
The impression roller 4, which is constructed of wood, metal, or other suitable
material, is mounted in an oscillating frame, consisting preferably of two elbow-
levers 5 provided with bearings for the axis or shaft of the said impression roller,
and rigidly connected by means of the bar 6, whose lower edge constitutes a rack
which is geared with a toothed wheel 7 mouted upon the shaft 8; the motion of

page_text: this toothed wheel causes the frame and roller to move from right to left to present
a different part of the paper to the type-wheel after any character has been
impressed or printed thereon. The frame thus formed is fitted loosely upon the
stationary shaft 9 so that it may turn freely and be moved longitudinally thereon.
The lower extremities of the elbow-levers 5 carry friction-rollers 10, which by
reason of the weight of the impression roller and its accessories are maintained
constantly in contact with the rail 11 secured to the lower extremities of two
arms 12. The latter are mounted upon a shaft 13, which oscillates in suitable
bearings attached to the face plate 1. The said shaft 13 carries a third arm 14,
projecting rearwardly through a slot formed in the said face plate 1; upon the
extremity of this arm, within the interior of the frame or casing of the apparatus,
rests the extremity of an arm 15 fixed upon a transverse shaft 16. This shaft
carries a second arm 17, having attached to it the armature 18 of the electro-
magnet 19; an adjustable spring 20 acting upon a third arm 21 upon the said
shaft 10 serves to hold this armature 18 out of contact with the said electro-
magnet 19 so long as it is not attracted by the passage of a current through the
bobbins of the said magnet. 22 is a stop screw by which the position of the
armature, when at rest, may be regulated.
The shaft 8 of the wheel 7 which engages with the rack 6, as above described,
carries on the interior of the caso of the apparatus a ratchet wheel 23. This wheel
is operated by a pawl 24 capable of movement upon a fourth arm 25 upon the
shaft 16, and is caused to rest or remain stationary during the return movement of
the paw! 24 by a stop pawl 26 pivoted to the face-plate 1. These two pawls 24
and 20 are each provided on one side with a pin 27, as shewn. Directly below
these pins 27, and at one side of the said pawls, is a lever-arm 28, fixed upon the
shaft 29, which carries upon another arm 30 the armature 31 of the electro
magnet 32. A spring 33 withdraws the said armature 31 from the electro-magnet
when no current is passing through the latter, and the stop-screw 34 limits the
movement of all of the parts mounted upon the shaft 29.
The shaft 8 carres at the interior of the case in addition to the ratchet wheel 23
a barrel 35, of the peculiar shape shewn. Upon this barrel is wound a cord or
thread connected to the weight 30. The object of the particular form of this
barrel will be hereinafter described.
Upon the shaft 29 is mounted a third arm 37, whose extremity carries a bent
rod 37 which projects forward through a slot formed in the front plate 1. The
front end of this rod passes over a pin 38 projecting from an arm 39, which is free
to turn upon the axis of the impression cylinder or roller 4 when the latter is in its
starting position. This arm 39 carries a spring pawl 40, which engages with a ratchet
wheel 41 fixed upon the shaft or axis of the impression roller. A second spring-
pawl 42 secured upon the elbow-lever 5 at the side of this ratchet wheel serves to
keep the latter in position after it has been moved by the pawl 40, and during the
return movement of the latter to engage with a fresh tooth of the said wheel,
which movement is effected by the spring 43 acting upon the arm 39, and is
limited by a stop 44.
The type-wheel 3 has a rotary movement imparted to it through the medium of
a train of clockwork 45 actuated by a weight attached to the cord or band 46
wound or coiled around the drum 47. This movement, however, is controlled and
rendered intermittent by an escapement wheel 48 upon the shaft 49 of the wheel 3.
The escapement anchor or pallet 50 of this wheel is arranged upon the shaft 51,
and is controlled by the electro-magnets 52, whose armature 53 is mounted upon
an arm fixed upon the said shaft 51. This escapement wheel 48 is loose upon the
shaft 49, and is provided with a series of teeth 54 similar to those of a crown-
wheel. A spiral spring 55 upon the shaft 49 exerts a constant forward pressure
upon the said wheel to cause a pin 56, rigidly attached to the shaft 49, to pass
between two of the said teeth, and whilst this pin is engaged or occupies a
position between any two of such teeth the shaft 49 cannot turn except when
the escapement is in action. In front of the escapement wheel 48 there is

page_text: arranged upon the shaft a disc 57, whose boss or sleeve is in contact with
the face of the wheel 48, and is provided with a longitudinal slot 58 through
which projects the pin or stud 56, as represented in Figure 3 of the Drawing.
This disc 57 is cylindrical, and its periphery is flat, excepting at a point where
it is provided with an aperture or notch 59 having an inclined surface, as
also shewn in Figure 3. A vertical oscillating shaft 60 supported at one side of
the shaft 49 in the bearings 60* carries at its upper end a pivoted or hinged
arm 61, whose pivot is provided with a shoulder 62 in such a manner that the said
arm G1 cannot be forced downward below a point which just permits a stud, pin,
or projection 63 (fixed in the rear face of the arm 61) to enter tho aforesaid
notch 59 of the disc 57 at the moment this slot is in the central vertical plane of
the shaft 49; the parts are so arranged that this notch 59 is exactly in this
position when the zero point of the type wheel is at the spot where the impression
is to take place. The extremity of the projection or stud 03 is tapered or inclined
to correspond with the inclined bottom of the notch 59. A spring 64 tends
constantly to turn the shaft 60 and carry the stud 63 out of line with the
notch 59 in the disc 57. At or near its lower extremity this shaft 60 carries a
fixed arm 65 projecting forward through a slot formed in the face-plate 1. This
arm is so arranged that during the time the impression roller 4 is at its starting
position, as shewn in the Drawing, a piece 66 secured to the roller frame or
carriage is in contact with the arm 65, and keeps the same in such a position that
the shaft 60 is turned against the force or action of the spring 64; at the same
time the projection 63 by its contact with the disc 57 forces back the latter, and
consequently the escapement-wheel 48 provided with the teeth 54 sufficiently to
release the same from the pin 56.
The faces of the characters cut or formed upon the type wheel 3 are made
concave to exactly correspond with the periphery of the impression roller or
cylinder 4 to ensure a perfect impression, and the periphery of the inking roller
(not shown in the Drawing), which revolves in contact with the said type-wheel,
is made convex in a corresponding manner to ensure the perfect distribution of
the ink.
The main conductor 68 enters the apparatus by the bobbins or coils of one of
the electro-magnets 52, and passes therefrom to the other electro-magnet 52, and
thence to the coils of the electro magnet 19, whence it passes to earth.
69 represents the auxiliary conductors which serve to magnetize the electro-
magnet 32.
The operation of the above described apparatus is as follows, that is to say:-
Supposing the various parts of the apparatus to be in the position illustrated in
the Drawing, and a sheet of paper to be held in any suitable manner upon the
impression roller or cylinder 4, and that the operation necessary to bring a certain
letter or character into position to be impressed upon such paper is to be effected
the operator at the sending station transmits by means of a suitable instrument an
intermittent current to the electro magnets 52, thereby actuating the escapement-
anchor 50, and permitting the type wheel 3 to turn with a rapid intermittent
movement.
The intermittent current thus transmitted, although it also traverses the electro-
magnet 19, does not produce any material effect upon its armaturo by reason of
the rapid changes or breaks in the current, which do not leave sufficient time for
the neutral armature 18 to overcome the resistance of the spring 20; but as soon
as the desired letter or character has arrived in the proper position for the
impression to be effected the operator presses on his key or stud for an instant, and
thus permits the transmission of a continuous current for a length of time sufficient
to magnetize the electro-magnet 19 to such an extent that it will attract its
armature 18, and consequently cause the shaft 16 to oscillate or turn. This move-
ment effects two results, that is to say, the arm 15 upon the shaft 16 on the one
hand depresses the extremity of the arm 14 upon the shaft 13, and the latter
through its arm 12, the rail 11, the friction-rollers 10, and the elbow levers 5,

page_text: raises the impression roller or cylinder 4 to receive the impression of the letter or
character previously brought into position by the intermittent movement of the
ype-wheel 3. On the other hand the arm 25 on the shaft 16 draws back the
feed pawl 24 of the ratchet wheel 23, and this pawl engages with the rear of
another tooth of the said ratchet wheel. As soon as the current which produces
these effects is interrupted, the armature 18 of the electro-magnet 19 being no longer
attracted, the spring 20 causes the shaft 16 to oscillate or turn in the opposite
direction, and the impression roller or cylinder falls or is depressed; at the same
time the pawl 24 advances and turns the ratched wheel 23 the desired distance to
feed or move (through the wheel 7 and the rack 6) the impression cylinder or
roller a sufficient distance to receive the impression of another letter or character.
These operations are continued until a line of printing is completed upon the paper,
and until the cylinder or roller 4 arrives at the other end of its travel.
During this forward movement of the cylinder 4 the cord or thread attached to
the weight 36 is rolled or wound upon the peculiarly shaped drum 35. After one
line is completed, or if it is desired to commence a new line before the preceding
line is finished the operator at the sending station transmits a current through the
auxiliary circuit 69 in which the electro magnet 32 is included; the armature 31
of this magnet
then attracted and causes the shaft 29 to turn or rock on its
axis. The arın 28 fixed upon this shaft is thus raised, and by striking the pins 27
of the pawls 24 and 26 disengages the latter and liberates the ratchet wheel 23.
The weight 36 acting through its cord upon the aforesaid drum 35 then causes
the shaft 8 to turn backward, whereby the cylinder or roller 4 is drawn back
through the medium of the wheel 7 and the rack 6 to its starting position, so that
the pin 38 of the arm 39 will be beneath the bent portion of the rod 37*.
When the impression roller or cylinder reaches the extremity of its backward
movement the piece 66 strikes the arm 65 on the shaft 60 and causes the latter to
oscillate in such a manner that the projection 63 upon the arm 61 will exert
sufficient pressure against the disc 57 to force the latter, and, consequently, the
escapement wheel 48 backward until the pin 56 becomes disengaged from the
teeth 54. This movement is facilitated by the peculiar form of the drum 35 which,
As soon as the
when in this position, gives to the weight 36 the greatest effect.
escapeinent wheel 48 is thus liberated and loose upon the shaft 49 the latter turns
rapidly under the influence of the weight attached to the cord 46 until the zero
point of the type-wheel coincides with the point at which the impression is to take
place. In this movement the projections 63 enters the notch 59 in the disc 57,
thus arresting tho revolution of the shaft 49 and permitting the escapement-wheel
and the said disc to again advance. Simultaneously with this movement the
projection 63 sliding upon the inclined bottom of the notch 59 passes out of the
latter leaving the entire system of devices on the shaft free to turn with it under
the combined influence of the escapement 50 and the weight attached to the cord 46.
When the cylinder or roller has been returned to its starting point the operator
causes the armature 31 to vibrate one or more times (according to the construction
of the apparatus) to effect the travel or movement of the said cylinder the required
distance to form the space between the line last printed and the next succeeding
line, this result being obtained through the medium of the arm 37 with its finger
rod or piece 37*, the arm 39 upon the axis of the said cylinder or roller and its
projection 38, the pawl 40, and the ratchel wheel 41, as will be readily understood.
Having thus fully described my said Invention and the manner of perforining
the same, I wish it understood that I do not confine myself to the exact details of
construction of my improved apparatus above described, and as shewn in the accoun-
panying Drawing, as it will be readily understood that the same may be varied in
many ways without departing from the spirit of this Invention; it will also be
understood that various parts of the said apparatus may be employed without the
others, or may be utilized in combination with other apparatus of the class to which
the said Invention appertains, and I claim,-
First. In a telegraphic recording apparatus, the combination of the typo-wheel

page_text: with an impression cylinder or roller, and with the devices for actuating or feeding the
paper in two directions, substantially as above set forth and for the purposes specified.
Second. The combination with a type-wheel having an intermittent movement
controlled by one or more electro-magnets and an impression roller or cylinder
having two movements, one of which effects the spacing of the characters and the
other the spacing of the lines, of mechanism for effecting these two movements and
devices for drawing back the said cylinder to its starting position, substantially as
above set forth.
Third. The combination with a type wheel and with an impression cylinder or
roller having a feed-movement for spacing the letters, of devices for drawing
back the said roller to its starting position, and simultaneously bringing the
type-wheel to its zero point, so that all of the instruments in the circuit will be in
unison, substantially as above set forth.
Fourth. The combination with a type-wheel having an intermittent movement
and an escapement wheel upon the shaft of the said type-wheel, of devices for
connecting the said escapement-wheel to and disconnecting it from the said shaft,
substantially as above set forth and for the purposes specified.
Fifth. The combination with a type-wheel controlled by the escapement-wheel 48
which is governed by the electro-magnets 52, of an impression roller or cylinder
which is fed forward and is caused to produce the impression by an electro-
magnet 19, the said electro magnets 52 and 19 being included in the same circuit,
substantially as above set forth and for the purposes specified.
Sixth. The combination with the type-wheel having the escapement-wheel
mounted on its shaft or axis and controlled by the electro magnets, of the impression
cylinder-frame and rack, the shaft 8, the toothed wheel 7 engaging with the said rack,
the ratchet-wheel 23, the stop-pawl 26, the electro-magnet 19, and intermediate
devices for turning the said ratchet wheel in one direction, and devices for liberating
the said wheel and turning it in the other direction, substantially as above set
forth and for the purposes specified.
Seventh. The combination of the ratchet wheel 23 upon the shaft 8 for 3
controlling the movement of the impression cylinder or roller, with the pawls 24, 26,
carrying the pins 27 (one of which pawls is controlled by the electro-magnet 1.9
through intermediate devices), and with the lever 28 controlled by the electro-
magnet 32, substantially as above set forth and for the purposes specified.
Eighth. The combination of the impression cylinder or roller and its frame a
moved longitudinally by the shaft 8 through intermediate devices, the ratchet-
wheel 23, the stop pawl 26, the wheel operating pawl 24 actuated by the electro
magnet 19, the lever 28 actuated by the electro magnet 32, and the paper feeding
devices also controlled by the said lever, all substantially as and for the purposes
above set forth.
Ninth. The combination with the type wheel shaft (actuated by a continuous
force and having the pin 56 projecting therefrom) of the escapement wheel 48
loosely fitted upon the said shaft and provided with the teeth or projections 54 and
controlled by the electro magnets, the spring 55 acting to press the said wheel 48
towards the said pin 56, the notched disc 57 provided with the slotted sleeve,
through which the pin 56 passes, and the shaft 60 carrying the pivotted arm 61
provided with a pin or projection 63 and controlled by an electro-magnet through
intermediate devices, all substantially as and for the purposes above set forth.
In witness whereof, I; the said Theodore Marshall Foote, have hereunto set
my hand and seal, this Eleventh day of April, in the year of our Lord One 5
thousand eight hundred and eighty one.