Improvement in Pocket Lamps or Lighting Devices.
Year: 1890

page_text: Date of Application, 6th Aug., 1890-Accepted, 27th Sept., 1890
COMPLETE SPECIFICATION.
[Communicated from abroad by ELIAS BERNARD KOOPMANN, 227, Broadway, New
York, State of New York, United States of America, Manufacturer.]
Improvement in Pocket Lamps or Lighting Devices.
I, WALLACE FAIRWEATHER, C.E., of 62 Saint Vincent Street in the City of
Glasgow, Registered Patent Agent and Fellow of the Institute of Patent Agents,
do hereby declare the nature of this invention and in what manner the same is to
be performed, as communicated to me to be particularly described and ascertained in
and by the following statement :-
This invention is an Improvement in Pocket Lamps or Lighting Devices, of which
the following is a full, clear and exact description, reference being had to the
accompanying drawings forming part thereof, in which similar letters of reference
designate like or equivalent parts, wherever found throughout the several
views.
The invention relates to that class of lamps or lighting devices which are designed
to be carried in the pocket, and may be used for lighting cigars, lamps, gas-burners,
and many other similar purposes; and is fully disclosed in the following Specification.
and claims.
In the accompanying drawing which forms part of this Specification :
Figure 1, represents in elevation, the improved lighting device, as it appears when
opened;
Figuro 2, represents a top-plan view of the same, the cover being removed, and
Figure 3, represents a central vertical section of the improved ignitible pellet or
fulminate carrier.
Referring to the drawing, A and B, represent the separate sides of the improved
pocket lamp or lighting device, which are hinged together at ; and D, is the cover
hinged to the back, which in this case is formed integral with the side B, at E.
The lamp is preferably substantially rectangular in cross-section, as shown in Figure 2,
and to one of the side portions is attached the reservoir F, in which is placed the
burning fluid or agent. This reservoir is provided with a hinged cover G, through
which passes a wick-tube H. The reservoir F, is filled with absorbent material, and
a wick K, is in contact therewith and extends up through the wick-tube and cover,
as shown in Figures 1 and 2, in such manner as to bring the wick into close proximity
with the ignitor when the sides of the lamp are closed.
The ignitor or fulminate carrier disk L, is composed of a disk of paper, cloth, card-
board or other suitable material, upon which are arranged in a circle a number of
pellets, drops, or bits of fulminate or explosive material or composition M. These
pellets are in the improvement, arranged in a circle on each side of the disk, and
preferably, near the edge thereof.
The disk carrier to which the ignitor disk L, is attached, consists of a wheel N,
nounted upon a pin or pinion O, which is attached to or extends through the side B,
of the case; and formed upon or attached to the carrier disk N, is a circular ratchet
or toothed wheel P, shown in dotted lines in Figure 1, the carrier and ratchet being
o united or constructed as to turn together on the pinion O. The ignitible pellets
r fulminates are so spaced as to correspond in position with the teeth on the ratchet,
o that a fulminate is presented to the scratcher at each movement of the carrier as
he same is intermittently revolved. These ignitible pellets or fulminates, are ignited
y a spring scratcher R, cut or stamped from spring metal, preferably steel, and curved
s shown, one end of which is attached to the reservoir in such a position that the
pper free end thereof, when the sides of the case are closed together, comes in contact
D

page_text: with the disk L, and the pellets or fulminates arranged thereon, and as the carrier is
advanced step by step, the fulminates are ignited as they pass under the end of the
scratcher and the wick K, is lighted.
The means employed to rotate the carrier consists of the spring-pawl S, one end of
which is attached to or is in contact with a push-button T, and the other end of which
engages the teeth on the ratchet wheel P, and a spring U, attached to the side B, of
the casing, also engages the ratchet and prevents its retroaction when freed from the
spring-pawl S. A spring V, is attached to the back of the casing in such a
manner as to act upon the cover and open the same, when released from, engagement
with the spring W, attached to or in contact with the push-button T, by which the
spring W, is operated and the lamp opened. It will thus be seen that the same move-
ment that releases and throws open the cover also rotates the carrier, explodes a
fulminate and lights the lamp.
The carrier disk N, which carries the fulminate disk L, is provided with projecting
spring-fingers XX, preferably of ogee shape, as shown, the free ends of which extend
in opposite directions and are curved outward, the pinion O, also extending in the
same direction to a distance equal to or greater than that to which the fingers XX,
extend. These fingers X X are preferably arranged on the carrier disk N, in line
with the central opening through which the pinion O, passes, and the ignitible-pellet
carrier disk L, is provided with openings or perforations which correspond with the
positions of the pin O, on which the carrier disk N, is mounted, and of the projecting
fingers XX, upon said carrier disk N.
In placing the pellet disk L, in position upon the carrier disk N, it is only necessary
to press the same down in the direction of the carrier, till the pinion O, passes
through the central opening, and then to gently rotate and press upon it, until the
spring fingers X X, pass through the corresponding openings therein, when, by
giving the pellet disk L, another slight rotation, the fingers will pass further through
said openings and thus hold the pellet disk L, snugly against the carrier disk N,
and the fingers X X, and the disk L, will then be in position, as shown in
Figures 1 and 2. The extension of the pinion O, beyond the fingers X X, aids
materially in this operation.
By providing the disk L, with pellets or fulminates on each of its sides, and so
constructing the disk as to admit of its being reversed upon the carrier, and held
securely in place in either position, the ignitible pellets or fulminates being so
arranged on either side of the disk L, as to be exploded or ignited by the same
automatic devices, when the disk is in proper position, a great advantage is secured
over any known device of this class; not alone in the value of the lamp and in the
cost of its construction, but also in the practical use thereof. And it is also a great
advantage over such known devices to provide a reservoir with a hinged cover and
a wick which passes up through the cover in such manner as to bring the wick into
proximity to the ignitor when the sides of the lamp are closed, as herein shown and
described.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, as communicated to me
1 declare that what I claim is:
1. A pocket-lamp or lighting device of the character herein described, having the
hinged sides, one of which is provided with a reservoir or wick-holder having a
hinged cover through which the wick passes, and the other with an intermittently
revoluble disk provided with ignitible pellets, means being also provided by which
the pellets are ignited as the disk is revolved, the wick being in proximity to the
pellets when they are ignited, substantially as shown and described.
2. A pocket-lamp or lighting device of the kind described, having the revoluble
disk with rows of ignitible pellets on both sides thereof, and means by which the
disk may be reversed when the pellets on one side are consumed, substantially, as
shown and described.

page_text: 3. The disk having the rows of pellets on each side thereof, and provided with
means whereby it may be reversed on its support or carrier, when the pellets on one
side thereof, are consumed, substantially as shown and described.
'
Dated this Fifth day of August 1890.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.