US486831A - Half to alexander hemsley - Google Patents

Description

(No Model.) Y I J. B. LAWSON.

FLASH LIGHT APPARATUS. No. 486,831. Patented Nov. 22, 1892.

omen STATES PATENT O JOSEPH B. LAWVSON, OF PHILADELPHIA, PENNSYLVANIA ASSIGNOR OF ONE- HALF TO ALEXANDER HEMSLEY, OF SAME PLACE.-

FLASH-LIGHT APPARATUS.

SPECIFICATION forming part of Letters Patent N o. 486,831,.dated November 22, 1892. I I

' Application filed March 22, 1892. Serial No. 425,983. (No model.)

To aZZ whom it may concern: engine or appliance e are connected with the Be it known that I, JOSEPH B. LAWSON, a backbone a in such manner that the piston citizen of the United States, residing at the e reciprocates in line therewith. city of Philadelphia, in the county of Philaf is a rocker-arm pivotaliy connected at one 5 delphia and State of Pennsylvania, have inend with the trunnion a and afforded arange 55 vented certain new and useful Improvements of play in the bifurcated portion of the backin Flash-Light Apparatus, of which the folbone a it being understood that the play of lowing is a specification. the rocker-arm fis limited in one direction The principal object of my present invenby the arm d and in the other direction by tion is to provide an eflicient, compact, and the piston e. 6o comparatively-inexpensive flash-light appag is a scoop connected with the free exratus especially adapted for photographers tremity of the rocker-armfand adapted to purposes. receive a charge of powder or other mate- My invention consists of the improvements rial, which when thrown suddenlyinto or upon in flash-light apparatus hereinafter described a flame produces a so-called flash-light. 65

and claimed. The mode of operation of thehereinabove- The nature and object of my invention will described apparatus is as follows: The candle be more fully understood from the following is lighted and a charge of flash-light producdescription, taken in connection with the acing material or powder is placed in the scoop 2o companying drawings, forming part hereof, g, whereupon the piston e is propelled for- 70 and in which ward by the ordinary operation of the pneu- Figure 1 is an elevation, partly in section, matic engine or appliance due to compression of a flash-light apparatus embodying features of the bulb cc. This motion of the piston e of myinvention. Fig. 2 is a top or plan view causes the rocker-arm f to be shifted forward of the same, and Fig. 3 is a detached view until it contacts with the stop d, as indicated 75 showing a modified form of the candle holder by dotted lines in Fig. 1, whereupon the conor stick illustrated in Figs. 1 and 2. tents of the scoop g are thrown suddenlyinto In the drawings, a is a main frame conor upon the flame of the candle and thus prostructed, preferably,of a single piece of wire duce the required flash-light. As soon as the 0 offset at the center thereof to form atrunnion piston e recedes in the cylinder 6 by the re- 80 a and having the respective ends a and a lease of the bulb 0c, the rocker-armfreturns thereof bent upward to form a front support automatically by gravity to its normal posia, and then rearward to form a bifurcated tion, as shown by the full lines in Fig. 1. It backbone aiand then downward and outward is of course important tofeed the candle upto form rear feet a The front support a is ward as it is consumed, in order to insure the 85 provided with a candle stick or holder. This proper delivery of the flash-light material candle-stick may comprise a spiral wire I) intoor upon the flame. Thisobjectisattained and a candle-socket I), provided with a hanmanually by the construction, as shown in dle b engaging the spirals of thewire b, Figs.1 and 2, bythe simple operation of turn- Figs. 1 and 2, or it may comprise a cylindriing the handle b in one direction or the other, 0 cal casing o, a candle-socket c, and a spring as may be required, and automatically by the interposed between the detachable bottom action of the spring 0 as shown in Fig. 3. cap 0 of the casing o and socket c, Fig. 3. In It will be obvious to those skilled in the art either case the candle support or stick is conto which my invention appertains that modinected with the front support a by means of fications may be made in the details of the 5 arms d and d, of which the former is interinvention without departing from the spirit posed between bifurcations of the backbone thereof, and hence I do notlimit myself to the a as shown at d in Fig. 2, for a purpose to exact construction and arrangement of the be presently described. The cylinder e and parts in an apparatus hereinabove explained;

its .complementalpiston e of the pneumatic but, 10o

t x M Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, in a flash-light apparatus, of light-producing means, a pneumatic cylinder and its complemental piston, a rocker-arm in range of said piston and provided with a scoop, and a stop for limiting the travel of said rocker-arm, substantially as and for the purposes set forth.

2. A flash-light apparatus comprising a mainframe, consisting of a single piece of Wire offset at the center to form a trunnion and having its ends bent upward to form a front support and rearward to form a bifurcated backbone and downward and outward to form rear feet, a candle holder or stick attached to said front support, a pneumatic en- JOSEPH B. LAWSON.

Witnesses:

RICHARD O. MAXWELL, THOMAS M. SMITH.

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