IMPROVEMENTS IN MEANS FOR LIGHTING AND EXTINGUISHING GAS LIGHTS, AND IN APPARATUS CONNECTED THEREWITH, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE TO CLOCKS OR ANALOGOUS TIME KEEPERS OR INDICATORS
Year: 1879

page_text: LETTERS PATENT to George Peter Gauster, of Reading, in the County of
Berks, and State of Pennsylvania, one of the United States of America, for
the Invention of "IMPROVEMENTS IN MEANS FOR LIGHTING AND EXTINGUISHING
GAS LIGHTS, AND IN APPARATUS CONNECTED THEREWITH, PARTS OF WHICH
IMPROVEMENTS ARE APPLICABLE TO CLOCKS OR ANALOGOUS TIME KEEPERS OR
INDICATORS."
Scaled the 30th May 1879, and dated the 21st January 1879.
COMPLETE SPECIFICATION filed by the said George Peter Gauster at the
Office of the Commissioners of Patents on the 21st January 1879.
GEORGE PETER GAUSTER, of Reading, in the County of Berks, and State of
Pennsylvania, one of the United States of America. "IMPROVEMENTS IN MEANS
FOR LIGHTING AND EXTINGUISHING GAS LIGHTS, AND IN APPARATUS CONNECTED
THEREWITH, PARTS OF WHICH IMPROVEMENTS ARE APPLICABLE TO CLOCKS OR
ANALOGOUS TIME KEEPERS OR INDICATORS.”
My Invention relates to improvements in means or apparatus for lighting and
extinguishing gas lights, and in means or apparatus connected therowith, parts of
which improvements are applicable to clocks or other similar time keepers or
indicators.
According to the first part of my Invention I employ a main case, which is
divided into two separate and distinct chambers or compartments. In one chamber
I arrange a motor wheel similar to the wheel of a wet gas-meter. This is revolved
by preference in glycerine or oil in place of water to act as a sealing medium, and
by suitable gearing connected to or operated by its shaft or axis communicates
motion to a clock mechanism arranged in the adjoining chamber or compartment.
This clock mechanism controls and operates the valve or valves for shutting off and
turning on the supply of gas to the main burner.
The flow of gas which operates the device also serves to supply the gas for a
small permanent flame, by means of which the large burner (or burners) is
ignited.
The second part of my Invention relates to means for keeping the passage or
opening of the permanent or subsidiary burner clean or free from obstruction caused
by corrosion or the deposit of oil or tarry matter from the gas passing there-
through.
The third part of my Invention relates to a modification in which the motor-

page_text: wheel or analogous mechanism operates to wind up a clock-spring, and through the
medium thereof to operate the clock nechanism. The clock mechanism may in
either condition serve only its ordinary functions of indicating time, giving alarm
to awaken persons, and the like, or it may in the fullest form of the Invention
control the development and suppression of the light at certain desired periods.
But that my Invention may be fully understood I will proceed to describe the
same more in detail by the aid of the accompanying Drawings.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a front view of the apparatus partly in section with the front of the
case removed.
Fig. 2 is a central vertical section of the same with the front of the case in
position, and
Fig. 3 shows detailed views of one of the cams separately.
Similar letters of reference indicate like parts in these several Figures, 1 to 3
inclusive.
A is the fixed frame-work or casing; a', the pipe through which gas is received;
and aa by pass through which gas to supply the main burner is carried around
without passing through the motor, as will appear further on.
B is a motor-wheel receiving the gas through a central pipe a², which is a branch
from the pipe a¹. Its construction need not be described further than to say that it
corresponds with the well known form of revolving-wheel used in wet meters.
This wheel is divided by a tight partition A¹ from the other portion of the casing,
and the chamber in which the motor-wheel B is enclosed is filled to the proper level
with glycerine, oil, or analogous fluid.
The wheel B is delicately mounted, so that it may revolve with little resistance
from friction. It carries a spur gear-wheel B', which engages with another wheel C¹
on the shaft C. This shaft turns in a close-fitting bearing in the partition A', and
thus communicates the turning motion of the wheel B to the clock mechanism.
I will represent the entire clock mechanism by the single letter M. It will be
understood that any of the approved forms of clock-work may be used for this
mechanism, with the additions of the parts now to be described which adapt it to
its peculiar service in this combination.
There is a slip joint at the point E. A spur wheel C fixed on the shaft C gears
with a wheel C revolving on a stud C carried by the partition A'. The wheel C
engages with a larger wheel D, which is fitted loosely on the shaft e of the clock-
work. The turning of the wheel D is of no effect in driving the clock nechanism
except as friction is induced thereon by gripping this wheel between collars on the
shaft e.
One of these collars e' is fixed and plane. The other collar E is dished,
and may if desired be cut with several slits extending inward from the periphery
nearly to the centre to increase its elasticity. This collar E being formed with a
square hole, and matching on a square part of the shaft e, contributes to receive and
impart to the shaft e the rotatory force of the wheel D, according as it is pressed
with more or less force against the latter. A nut e fitted on the threaded end of
the shaft e may be turned by hand or otherwise to adjust the force with which
the collars E, c', grip or pinch on the wheel D to form the slip joint.
When in consequence of the passage of the larger quantity of gas the motor
wheel B turns faster than is required to drive the clock work, the slip joint which
I will designate when necessary by the single letter E, allows the surplus motion
to be lost in simply overcoming the friction between the wheel D and the shaft c.
A constant small consumption of gas being maintained, the wheel B tends
to turn with an approximate uniformity, and the parts being rightly adjusted, the
motor supplies the proper force for the clock-work with always a little surplus
motion.
The clock work M is so geared as to revolve the wheels G and H once in twenty-
four hours. They revolve in the direction indicated by the arrows. I will designate

page_text: them when necessary as "twenty-four-hour" wheels. There are adjustable cams g
and h mounted on the same centres, and by a construction substantially as repre-
sented in the third part of my Invention hereinafter described each rotation of the
wheel C communicates an opening motion at a certain period to a valve for admitting
gas to the main burner, while at another period the wheel H acting in concert with
its cam h, gives a closing motion to such valve.
O and P are levers which communicate motion respectively from G and H to
horizontal arms extending in opposite directions from an upright shaft R, on the
upper end of which upright shaft is an oscillating valve in the form of a horizontal
circular plate R' provided with small holes r. This wheel R, r, fits gas tight upon
a plane stationary surface, which is correspondingly perforated, and is open to
receive gas through the pipe a¹.
When the lever O turns the shaft R in one direction the gas is let on, and
flowing out through the large burner Y gives the desired illumination until by the
action of the other lever P the shaft R is turned again in the opposite direction, and
correspondingly turns the valve R', so as to move its holes r out of connection with
the corresponding holes in the sent, and the gas being shut the main burner Y is
extinguished.
The gas issuing from the main burner Y is ignited by a small constant flame x
issuing from a relatively large orifice or mouth piece J, which is fitted on the
small pipe J through which the gas issues after its escape from the motor wheel B.
This constant flame must be very small in order to avoid wasting gas, I find by
experiment, or otherwise, the required size of the orifice to discharge a proper
amount of gas, and contract the passage to the required extent at the point j. I
attach much importance to the fact that this point is not at the mouth or issuing
point at the top of the tube J', but is at a point so far removed therefrom that the
heat of the flame a induces no corrosion or other difficulty. In my experiments I
have the proper contraction at the point j, by introducing an accurately drilled
jewel at the required point, and closing the metal of the tube J tightly upon it by
compression.
Tho shield A which encases the small flame x, and prevents it from being
extinguished by draughts of air or other accidental cause may be of the same
construction I have shown in the Drawings or of any other suitable form. The
casing A which covers the valve R₁ should be adapted, as shown, to allow tho
valve to be inspected and removed when necessary. The filling orifice A* connects
with the chamber in which the motor wheel B turns, and is available to supply
additional oil or glycerine as required.
A³ is an overflow plug which aids to regulate the height of the fluid.
I can vary the position of the cam hat will to reduce the action proper to this
cam at an earlier or later period, by simply slacking the corresponding pinching
screw K and shifting the cam partially around, and again tightening it by setting
up the scrow. When this cam is once properly adjusted to correspond in action
with the other cam g, it need not be again disturbed; but the adjustment for the
varying lengths of the days may be effected through the medium of the connected
levers g', h'.
These are connected, the levers g₁ directly to the cam g, and the lever h¹
indirectly to the cam h, by the aid of the pinching screw K which is tapped
through the ring encompassing the cam as shown. The levers g', h', extend
towards each other. They are coupled by means of a scrow T, which is tapped into
the arins g', passing loosely through a slit in the arm h. By raising or lowering
the scrow T, both arias are moved simultaneously and to a partially equal
extent. The cams g and h are so formed that the lowering of the screw T, while
it makes the period of lighting earlier makes the period of extinguishing later. So
also raising the screw T, and correspondingly raising the arins g¹, h', makes the
period of lighting later, and the period of extinguishing earlier.
The above reduces to a single operation the adjustment of both cams.

page_text: U is what I term a year wheel. It is turned by a gear U* fixed on its shaft
which engages with a worm gear U', carried by a shaft U, upon which is mounted
na bevel pinion Us, gearing into a pinion U, fixed on the shaft U of the gear
wheel U, which receives motion froin the clock mechanism, and drives the twenty-
four-hour wheels G, H, so that it makes one complete revolution only once in three
hundred and sixty five and one quarter (365+) days.
A crank pin u, set near the periphery of the gear wheel, U is connected by a link
V to the screw T.
As the wheel U slowly revolves, it acts through the link V to lower the screw T
during the entire period from June to December, and to raise the screw T during
the period from December to June.
The crank motion is excellently well adapted to induce this automatic action.
For a considerable period near the 20th of December, the crank is on its dead
centre at the bottom, and induces no appreciable change in the position of the cams.
A like condition obtains near the summer solstice; but at the periods when " the
sun is crossing the line," in March and September, the change is rapid.
This automatic attachment relieves the attendant from all labor, and furth-
more makes the action more perfect than can be obtained by any ordinary means in
adjusting by hand. The chango is made each day, and the mechanism can be
constructed and adjusted with nicety so as to keep very near the desired moment
of lighting and extinguishing.
Modifications may be made by any good mechanic. I can vary the construction
of the slip joint E within wide limits. I can make the nozzle or tip J' adjacent
to the small flame removable and exchangeable, if it shall under any circumstances
be desired. I can provide a cock which shall close the flow of gas to support the
small flame whenever it is required for repairs, or for other purposes.
I can employ other forms of motors than the wheel B represented; but it is
obviously important that it shall be a construction of motor which allows little or
no leakage, because the consumption of gas is very small, and if much leakage or
passing by occurs, the flame would be supplied without the motor being worked
and the clock would stop.
I can use inuch less than the entire mechanism of the clock to serve as the time
controlling mechanism. Thus a simple escapement, and a much smaller set of gear
wheels than is ordinarily employed may serve; but I esteem it important to attain
a high degree of perfection in the time keeping, so that if practicable the mechanism
may run for months or years without the clock mechanism gaining or losing so
much as to require resetting. The uniformity of temperature maintained by the
close proximity of the small continuous flame, facilitates the attainment of this
degree of perfection. By using glycerine or oil as the sealing fluid for the motor
with the connections shown, I insure a lubricating of the mechanism which largely
or entirely precludes the necessity of ever oiling by hand. But this may be varied,
and the work may be oiled by hand at long intervals, or may I believe run without
oil.
Some parts of the Invention may be useful without the others, I can make the
whole of the gas flow through the same motor-wheel B with the effect of increasing
the amount of slipping motion at the slip joint.
I will now proceed to describe the second part of my Invention.
Fig. 4 represents a face view, and
Fig. 5 an edge view of apparatus embodying this part of my Invention.
Fig. 6 is a section through a portion on a larger scale.
Fig. 7 is a cross section on the line x, x, in Figure 6.
Similar letters of reference indicate like parts in all the Figures illustrating this
part of my Invention, that is to say, 4 to 7 inclusive.
A is the main burner equipped with provisions, not represented, for supplying a
strong flow of gas to furnish light during the hours required; B is a small burner
placed in such relation thereto that a small jet from the burner B will be under
and in position to ignite the strong current of gas when it is let on.

page_text: The small burner B is supplied with gas continuously through a small orifice not
shown.
M is a wheel connected with the clock-work, not represented, and making one
completo revolution in twenty four hours. It revolves in the direction indicated
by the arrow.
The lower ond of the burner tube B is equipped with a stuffing box B' which
forms a tight joint around the wire or probe b. This wire is moved endwise by a
crooked lever D', D, turning on a center & and taking hold of the wire b by means
of the forked end of the arm D which engages between two knobs or nuts b¹, b³,
on the wire b. The other arm D' of the lever is formed with an offset near its end
constituting a head D, as shown, and rests against a fixed stop N. The lever D¹, D³,
is pressed against the stop N by the force of its spring C.
The wheel M carries an arm G binged to the wheel at the point g, and having a
bevelled head at its outer end. The wheel M is partially enclosed by a curved
piece H which stands in such position and is so curved that at each revolution of
the wheel M it engages with a side arm G' carried on the lever G, and compels tho
latter to move inward towards the contre of the wheel against the force of the
spring I which drives it outward.
Care is taken to so form and arrange these parts that a sharp and strong outward
motion of the spring lever G occurs at the moment that its arm G₁ passes the end
of the piece H. This motion causes it to touch and pass the head D with a quick
strong notion, and compels a corresponding quick movement of the lever D1, D2, and
consequently of the wire b. The wire bis moved upward sufficiently to protrudo
its upper end through the small orifice of the burner B. It is instantly returned
by the force of the spring C.
This movement of the wire b occurs at intervals of twenty four hours. I find
the movement is so rapid that it will not extinguish the small flow of gas, but act
as a safe guard. I so time the action that it shall occur while a strong jet of gas
is burning from the main burner A, so as to be again ignited.
Fig. 6 shows on a larger scale the means which I have provided for efficiently
guiding the probe b. It moves through a hole which is only a little bigger than
itself, while aimple holes are proided along side to allow an unobstructed flow of
the gas.
I prefer that the wire b is stouter below than is necessary at the point where it
passes through the orifice. The main length of the wire may be No. 24, while the
small part which is pushed up through the orifice to keep it clear may be No. 80.
Although I have described and shown the second part of my Invention separately,
it is adapted and furthermore is intended to be applied to the subsidiary burner of
apparatus, such as shown and described in respect of Figures 1 and 2; and tho
spring arm or operating means G may be mounted on a suitable boss, extension, or
wheel carried on, affixed to, or operating by either of the shafts of the clock
mechanism.
I will now proceed to describe the third part of my Invention.
According to this part of my Invention I connect a clock with a revolving
motor-wheel or analogous mechanism operated by the motion of gas analogous to
the action of a meter. The clock may serve only its ordinary functions of indicating
time, giving alarm to awaken persons, and the like; or it may, in the fullest form
of my Invention, control the development and suppression of the light at certain
desired intervals.
The Invention is adapted to apply in street lamps and in all analogous situations.
The power is derived from the rotation of a motor-wheel or analogous mechanism.
Provision is made for varying the parts to allow for the increased length of the
night in winter, and to adapt the apparatus to changes of burners and to variations
due to wear or other causes which may vary the quantity of gas used
I will proceed to describe what I consider the best means for carrying out this
hour.
per
part of the Invention.

page_text: .
Fig. 8 is a front view of apparatus constructed according to this part of my
Invention.
Figure 9 represents a portion of the same, the burner and front parts being
removed. It is a section on the line S, S, in Fig. 12.
Fig. 10 is a corresponding vertical section on the line T, T, in Figure 12.
Figure 11 is a corresponding section on the line U, U, in Figure 12.
Figure 12 is a side elevation, partly in section. The section is in the plane of
the shaft.
Figures 13 and 14 represent details detached.
Similar letters of reference indicate like parts in these several Figures 8 to 13
inclusive.
I will describe this part of the Invention as fully carried out, the gas being caused
to operate the clock and being in turn developed and suppressed by the action of
the clock. A is the casing of a gas-meter, and F is an ordinary wet-meter wheel
therein. The casing A contains diluted glycerine or other non-freezing and non
evaporating fluid, and the gas enters through the passage a'; B is a valve-casing
containing a valve operated by the stem band closing by a forward movement.
This valve closes tightly when lifted, the small quantity of gas required to
maintain a minute flame during the suppressed period being supplied by other
means.
The gas having passed the valve in the valve casing B flows to the burner C
It is formed with a sleeve D' which
through the pipe a²; D is a movable shield.
plays on the upright portion a³ of the gas-pipe and is of sufficient weight to operate
the attached train of levers and links E, E, &c., in one direction, these parts being
operated in the other direction by the clock.
The first lever marked E turns on the centre e, and is connected by a link E'
with the lever E turning on the fixed centres or pivots e² mounted at such a
This lever Eis
distance apart as to afford a wide bearing, as will be obvious.
connected to the arm or extension E³ from the sleeve D¹.
The lever E is connected by a spring E* with the valve-stem b. When the
lever E turns in the proper direction to lower the valve-stem and thus to open
the valve, the same movement is communicated through the connections E', E², &c.,
to the shield D, lowering said shield and properly exposing the burner C for full
illumination. Simultaneously with this movement the gas-light bursts up into full
flame. The reverse movement of the parts at the proper time closes the valve and
raises the shield D to protect the slight flame from any current of air which
might extinguish it, until another movement of the mechanism in the opposite
direction.
a is a small pipe leading from the main pipe a and intended only to convey the
small quantity to support the flame during the day-time or the unilluminated
portion of the time. Through it the gas flows constantly and contributes its quota
to the magnitude of the flame when in full illumination, but at that period its
influence is inappreciable. When however the flow of gas through the valve B, and
consequently through the pipes a', a², is entirely stopped, the small quantity flowing
through the pipe a is of great importance. The quantity R being forced inward or
drawn outward by turning it in one direction or the other, enlarges or contracts the
aperture, which is thus capable of very delicate adjustment.
During the period while the gas is full on, the meter wheel F turns in the ordinary
manner, and I find it is capable of exerting a sufficient power to operate a clock
mechanism. Even if the gas is only used for one or two hours each day the motion
of the motor-wheel during that period is sufficient to wind up a clock-spring which
will cause a clock to run something more than one day. I worked a clock mechanism
through the medium of a spring thus wound up by the gas.
The rotation of the meter-wheel F turns a small gear-wheel H on the exterior
of the case.
This turns a large wheel H' having fixed to its side a small wheel H³,
and the latter turns a large wheel H³. On the side of the wheel H³ is a small

page_text: grooved wheel H* which transmits motion by friction to a large wheel I connected
with the clock mechanism. The series of wheels from H to H' are mounted on a
movable plate or frame J turning on the stuffing-box of the motor-shaft as a centre,
and actuated by a spring K having sufficient force to hold the small friction-
wheel H always firmly in contact with largo friction-wheel I. The contact of these
wheels Hand I winds up the clock mechanism until the spring fully wound.
Then any further rotation of the gas-meter is allowed by slipping.
The clock mechanism may be of any ordinary character; I prefer, for obvious
reasons, the simplest and most durable construction. The large friction-wheel I
may transmit its force to the clock-spring through multiplying-gear if desired, but
my experiments indicate that a direct connection may be allowed, and I have
represented it as firmly fixed to the spring-shaft I. Each rotation of the wheel I
gives one complete rotation to the spring shaft I. The spring is marked I².
The clock mechanism I, I, I, &c., up to the escapement I³ need not be particularly
described. The result is a mathematically-uniforin rotation of the shaft I which
extends out beyond the fixed bearing A farther than usual. It carries two hands
M', M, in the ordinary manner, the minute hand M' being mounted directly on
the shaft I, and the hour-hand M2 being geared in the usual manner. They perform
their usual functions and the apparatus may be used with good effect in dwellings
to perform simply the ordinary functions of indicating time.
Thus used my Invention performs the functions simply of making the clock self
winding.
The gas may be let on and suppressed by hand through the aid of any convenient
attachment (not represented) to the lever E or its connections.
When my Invention is thus worked the passage a may be omitted, as also the
shield D and its connected levers. The gas may be ignited by ordinary means by
hand, and on being suppressed may be turned off altogether.
In the fullest form of iny Invention all these parts are available. The mechanisin
for operating the lever E and its connections may be adjusted to run the light all
night, turning it down low in the morning and turning it full on at the approach of
evening, as will be ordinarily desired for street lamps, or it may be adjusted to be
turned on at the same or any other hour, and be suppressed at eleven o'clock or any
other desired period.
On the front of the main fixed plate A is a similar fixed framing m attached as
represented, which forms a bearing for a large gear wheel P carrying the sleeve P¹.
It also forins the bearing for a side shaft Q having two gear wheels Q1, Q, of greatly
differing sizes.
The large wheel Q¹ receives motion from a small wheel on the quick shaft I and
communicates it back again through the small gear-wheel Q³. The result is a
uniform rotation of the wheel P and its sleeve P¹ once in twenty four hours. Any
cams mounted on the wheel P and its attached sleeve P' may be made to operate at
any desired hour in the twenty-four by adjusting them forward and backward.
I employ two such cams with means for independent adjustment of each from the
front of the face by means of the handles V and W. By setting the handle V at any
desired hour, the light will be turned down at that hour. By setting the other
handle at W at any desired hour the gas will be again let on in full illumination at
that hour.
The handle W is fixed on the sleeve W' turning loosely on the sleeve P' and
carrying a cam W which in its rotation touches the lever E and holds it up
until the offset w arrives at the end of the lever E, then it drops and lets on the
light.
The valve-stem b has been previously shut and the light suppressed by the action
of the other adjustable cam V which is fast on the sleeve V₁, and is turned by the
handle V. This sleeve V1 may be set forward and backward by acting on the
handle V to change the hour when the light is suppressed at will. X is a thumb-
nut threaded on the sleeve P'; by tightening this thumb-nut both the cams V, WE,

page_text: may be firmly set. To change the period of enlarging or contracting the flame, first,
the thumb-nut X should be slackened, then the hands V and W, or either of them,
changed in position, thereby inducing a corresponding change in the attached cam V
or W, & then the thumb-nut X should be again tightened, holding all firm, and
causing the light to be regularly let on and turned off at the corresponding moment
until the parts are again adjusted.
The apparatus may work with some success with the cam V, simply raising the
valve b by a gradual motion at the proper hour for suppressing the light; but I
esteem it far preferable to suppress the light suddenly. To effect this a loose piece Vs
is hinged to the cam V and subjected to the operation of a spring V which exerts
There is a
a constant forco, urging the piece V³ outward or away from the centre.
pin V in the front face of the movable piece V³ which as the cam revolves is
subjected to the action of a spiral cam N' formed on the interior of the clock
face N.
As the wheel P performs its slow and uniform diurnal rotation the pin V+, and
consequently the attachment V³, is drawn inward by the spiral cam N' until it
reaches the off-set n'. On passing that the pin is liberated and the attachment V³
is moved rapidly outward by the action of the spring V³.
By the compound construction and operation of these parts I obtain a quick
instead of a slow lifting motion of the valve-stem b at the right moment.
Many modifications of the details may be made by any good mechanic.
Some parts of the Invention may be useful without the others, but I prefer the
whole used together.
The handles V and W may be made of a different color from the ordinary clock
hands, and the eye soon becoming accustomed to their presence in the desired fixed
positions they interfere but little with the enjoyment of the ordinary use of the
clock, that is to say, the hands proper of the clock indicate time on the dial or
clock-face N in the ordinary manner.
I can score the Figures or marks indicating the hours for the adjustment of the
hands V and W either outside of the ordinary clock-figures as represented, or inside
of the latter. It may be more convenient in some cases to have the adjusting handles
and their attachments on the back instead of on the face of the apparatus. In such
case the clock-face will show only its usual front, but the inconvenience of being
required to adjust the handles for changing the illumination at the back will, Ï
.believe, more than counterbalance the advantages of that arrangement for ordinary
purposes.
This part of my Invention may in some cases be used with advantage simply to
turn off the gas at a specified hour, leaving it to be ignited by ordinary means. The
clock may in such case and in other cases be made to serve for more than one
burner.
One clock may under some conditions serve to extinguish the lights for a large
room or entire building.
An important function performed by my burner having a small continuous flame
is the imparting of a moderate amount of heat to the metal and generally to the entire
interior of the apparatus; this is especially important in very cold weather. The
hardening of the sealing medium and the lubricating material is sufficient in cases
of intense cold to materially derange the operation of the mechanism. By main-
taining a small constant flame within the apparatus I avoid the extreme low
temperature which would otherwise be seriously objectionable.
Having thus described my Invention I would have it understood that I do not
confine myself to the exact details shown and described so long as the peculiar
characteristics of my Invention be retained substantially as described, but what I
do claim is,-
First. A clock mechanism having suitable provisions for turning on and off the
flow of gas at the proper periods, connected directly, as shown, to a motor operated
by a continuous flow of gas to a subordinate burner, as herein specified.

page_text: Second. In an apparatus for mechanically lighting and extinguishing 'gas lights,
the independent pipes or conduits a', a², one for the small continuous flame and the
other for the strong periodic flamo, in combination with a motor B arranged to be
operated by the gas which supplies the small continuous flame, as and for the purposes
herein specified.
Third. In an apparatus for mechanically lighting and extinguishing gas lights the
small orifice or contraction ; in the passage supplying gas to the sinall continuous
flame in combination with the larger extension J' beyond it, arranged to allow the
latter to serve as the burner for the small flame, as herein specified.
Fourth. In an apparatus for mechanically lighting and extinguishing gas lights,
the cams g, h, and arms g', h¹, connected as shown, so that the adjustment of one
cain insures the corresponding adjustment of the other, as and for the purposes herein
specified.
Fifth. In an apparatus for mechanically lighting and extinguishing gas lights, the
employment in combination with the operating cam h and adjusting lever h' of the
ring loosely enclosing the cam h and allowing the latter to be adjusted within
the forner and secured by the pinching screw K or its equivalent, as and for the
purposes herein specified.
Sixth. In an apparatus for mechanically lighting and extinguishing gas lights the
year wheel U and connection V in combination with the arms g, h, cams g, h, and
suitable clock mechanism M adapted to automatically induce the required changes in
the periods of commencing and discontinuing the illumination, substantially as and
for the purposes herein specified.
Seventh. The clearing probe having an endwise movement in the small burner B
in combination with suitable operating mechanism and with the main burner A, as
and for the purposes herein specified.
Eighth. The clearer or probe b, automatically moved at intervals as specified, in
combination with a gas burner B having a small orifice adapted to maintain a
continuous flame for the ignition of gas in a large burner, as and for the purposes
herein specified.
Ninth. In combination with the probe band suitable connections to a withdrawing
spring C, the quick moving-piece Gactuated as specified, and adapted to communicate
its blow to the probe b and induce a quick reciprocation, as herein specified.
Tenth. The wheel M, arm G, and operating spring I, in combination with the
probe and its spring C and actuating lever D1, D2, adapted for operation in
connection with the burners B, A, and a suitable motive power, as herein specified.
Eleventh. The combination of a clock with mechanism for winding the same by
the motion of a gas-motor actuated by the flow of gas to a burner or burners,
substantially as and for the purpose herein specified.
Twelfth. The clock-dial N, clock hands M³, M, and actuating spring 12 in com-
bination with means H, I, for winding the same by the motion of gas, a provision
for slipping to avoid over winding, one or more gas burners C, a provision a* for
allowing a continuous small flow of gas, and a shield D for protecting the flame
when reduced, all combined an operating as and for the purposes herein specified.
Thirteenth. A motor actuated by the motion of gas, a clock wound up thereby,
means for contracting the volume of the flame at a certain period of time for
enlarging it at another period of time, both determined by the clock, and means for
adjusting one or both periods at will, as herein specified.
Fourteenth. In combination with a clock actuated by the motion of gas and
serving to enlarge and contract the flame at adjustable periods, the dial N, ordinary
clock-hands M, Al, adjusting handles V, W, and pinching nut X, the latter being
adapted to hold the adjustable parts rigidly, as herein specified.
Fifteenth. In an apparatus for mechanically lighting and extinguishing gas lights
a clock mechanism with suitable impelling means and connections for lighting and
extinguishing the main flame in combination with a small continuous flame adapted

page_text: to impart heat and avoid an extreme low temperature under any conditions, as
herein specified.
In witness whereof, I, the said George Peter Gauster, have hereunto set my
hand and seal, at the City of New York, in the State of New York, one of
the United States of America, this 12th day of November, in the year
of our Lord One thousand eight hundred and seventy eight.
Witnesses,
THOMAS DREW STETSON, New York.
EDITH BROOKES.
GEORGE PETER GAUSTER.
(LS.)