Year: 1894

page_text: Date of Application, 31st Dec., 1894-Accepted, 16th Feb.,
1895
I, BRADFORD HENRY PENDLETON of No. 1208 Chicago Avenue, in the City
of Evanston, Cook County, State of Illinois, United States of America,
Gentleman, do hereby declare the nature of my 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 relates to lighting devices, and my object is to provide a means for
this purpose which is more particularly intended for gas lighting but by slight
modification may be readily adapted to use for lighting ordinary oil lamps, gas
tires, etc.
The construction, method of applying to an ordinary gas burner, and the method
of operation are described hereinafter, and fully illustrated in the accompanying
drawing, in which :—
Figure 1 is a front elevation, attached to a gas burner.
Figure 2 is a left hand side elevation of the construction shown in Figure 1.
Figure 3 is a front, and Figure 4 a side elevation of the main portion of the case
for containing the interior operative parts, together with the scratcher, as will be
further explained.
Figure 5 is a plan view of the construction shown in Figure 4.
Figure 6 is a front elevation of the front portion of the case.
Figure 7 is a view of the opposite side of Figure 6, showing inside arrangement
of igniting tape and other operative parts.
Figure 8 shows, respectively, front, side and inside elevations of the removable
front of the case, same as Figures 6 and 7 but with all the operative parts, except
the tape roller, removed.
Figure 9 is a front elevation of the four-tooth ratchet wheel, and
Figure 10 the pawl therefor.
Figure 11 shows, respectively, front and side elevations and a plan view of the
weighted operative lever whose pawl, Figure 10, engages ratchet wheel, Figure 9.
Figure 12 is a side elevation of the shaft upon which the igniting tape is wound
when the device is in action.
Figure 13 is a face and edge elevation of the igniting tape, showing arrangement
of igniting points.
Similar letters indicate like parts throughout the several views.
The main portion of the case A is rectangular in form and open at both ends and
in front, with the exception of two projections B and B near the top end. The
scratcher C is attached as shown, and its top portion is bent over and down, the
point thereof coming in close proximity to a roller D which is mounted on a pin
near the top inside face of the front part E of the case, when the parts are all
assembled as in Figures 1 and 2. At F is the winding shaft which passes through
the front plate E of the case, and is held in position by an inside washer and the
ratchet wheel G, both of these parts being firmly secured to the shaft which is free
to revolve one-fourth of a revolution at a time, by pulling downward on cord H
whose upper end is attached to the outer end of pawl I which is pivoted to a
lever J and engages the teeth of ratchet wheel G, lever J being loosely mounted on
shaft F between ratchet wheel G and a washer at the outer end of the shaft, there
being an outward projection K of the lower end of the case plate E to serve as a
stop against pulling lever J around any further in one direction than is shown by

page_text: the broken lines, Figure 1; and there is another stop L to prevent the weight J
from carrying the lever further around than the position shown in the solid lines.
There is a spring pawl M, Figures 1 and 6, having the free end turned outward to
engage with the teeth of ratchet wheel G, and serve as a stop to prevent a backward
movement thereof. The pawl I is strongly pivoted to the end of lever J, by a
portion of the end of the lever being bent upon itself to form a lug so that the pawl
pin is supported at both sides of the pawl and may therefore be comparatively
small. The pawl operates without the aid of a spring through the weight of the
attached cord and its knob, there being a projection at I of the pawl which serves
to prevent it moving far from operative position backwardly. The tape N for
holding the igniting points O, is first placed in the coiled form around a pin P,
after which its outer end is brought up around the roller D, thence down to the
winding shaft F, where the end is inserted in the slot R and the shaft given a
revolution to fasten the end of the tape therein. It is obvious that, since shaft Fis
turned but a fourth of a revolution at each pull of the cord H, this action would
cause a less length of tape to be wound on shaft F at each fourth of a revolution at
the beginning than when the tape has been almost all wound upon the shaft, so that
the igniting points O are placed gradually wider apart from the first to be used of the
series to the last, as is shown in Figure 13, this arrangement of the igniting
points insuring that but one at a time will be ignited by cach pull of the cord.
The inside end of shaft F is prolonged sufficiently to enter a hole in the rear
through the main portion of the case, when the portion shown in Figures 6 and 7
is slid up into the main case under the projections B and B', the projections pressing
upon the front plate E which serves as a spring to first bend outward and finally
to force the end of the shaft into the hole Q, and thus form a catch to hold the two
parts of the case in proper relative position. The front plate E, together with the
operative parts are easily removed by first lifting outwardly upon the lower end of
the plate, which disengages the end of the shaft, after which the shaft may be slid
downwardly and out. It will be understood that the stud pin upon which roller D
is mounted to revolve is of a length sufficient to cause its free end to press against
the inside of the back of the casing and hold the front plate E close against the
projections B B. By successively pulling downwardly upo cord H all of the
igniting points O may be fired as they pass under the scratcher C as usual. The
operative parts being all attached to the front plate or lid of the case, which has no
projecting sides, the tape may be easily removed and a new tape put in its place.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a lighting device, the case therefor comprising a back portion with sides
and inward projections B and B therefrom, as described, the front side comprising
a plate having the operative parts attached thereto, which plate is adapted to slide
longitudinally into the said back portion under the said projections, a hole Q in the
back portion to receive the free end of shaft and serve in combination with the
said projections for the purpose stated.
2. The combination in a lighting device having the main portion A of the casing
with sides and projections B and B therefrom, and a scratcher C attached thereto,
as described, of the front plate of the case with a roller mounted to revolve at one
end thereof, and a tape winder shaft at the other, a tape having a series of igniting
points thereon coiled around a pin between the roller and the shaft, a portion of the
tape passing over the roller under the scratcher, and one end attached to the
winder shaft which is adapted to wind up the tape and successively fire the igniting
points, as shown and described.
3. In a lighting device, means for operating the tape winding shaft, comprising a
ratchet wheel secured thereto and a weighted lever loosely mounted thereon, a
pawl pivoted to the lever and adapted to engage the ratchet wheel, an actuating.
cord attached to the pawl and stops on the case for limiting the motion of the lever,

page_text: and a pawl for preventing a backward motion of the ratchet wheel, the parts
operating in combination for the purpose stated.
4. In a lighting device of the class described having a tape winder shaft with a
limited intermittent movement, the tape having igniting points disposed thereon at
a gradually increasing distance from the first used to the last, for the purpose
stated.
Dated this 31st day of December 1894.
For the Applicant,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.