US1411613A - Flash light - Google Patents

Description

Patented Apr. 4, 1922.,-

F. EVANS.

FLASH LIGHT.

APPLICATION FILED MAR. 22, Iszo. v1,41 1,613,

cm1-eb 'STATES Pri-:Nr orifice.

man EVANS, or SUMMIT, New JERSEY, Assieme 'rc tours v. AnoNsoN, on

NEWARK, NEW JERSEY.

FLASH LIGHT.

Specification of Letters Patent.

Patented Apr, 4, 1922.

Application filed March 22, 1920. Serial No. 367,925.

To all whom t may concern Be it known that 1, FRED EVANS, a citi- Zen of the United States, residing in the city of Summit, in the county of Union and State of New Jersey, have invented certain new and useful lniprovements in Flash Lights, of which the following is a full, clear, and exact description.

My present invention relates to electric flash-lamps, and it aims to provide certain novel and useful improvements therein.

The principal object of myV invention is to provide an electrical flash-lamp, designed especially to bey suspended from a wall or other suitable support, in a room, hall or in any place in which a flash-lamp may be desirable; and the invention embodies certain features of improvement whereby the lamp may be caused to flash while so suspended.

The invention is also Concerned with the provision of a cast one-piece drum-like shell, in which all of the interior parts, except` the lampv and its reflector, may be permanently secured, the lamp and its reflector being housed in the front plate or closure, which may be readily attached to or removed from the shell without disturbing the parts therein contained.

Other objects and advantages will be made manifest in the following specification; and the preferred embodiment of the invention is illustrated in the accompanying drawing, forming a material part of this application, and in which z- Fig. 1 is a front elevational View of my improved flash-lamp, a portion of the casing being broken away to exhibit the interior parts; and

Fig. 2 is a of the same.

Referring to the drawing, the numeral 3 represents a drum-like shell, cast in onepiece with a projecting portion 4, the flange 5 of the shell being cast on its edge at suitable intervals with enlarged or reinforced regions as 6, in which screw-threaded openings as 7 may be made for a purpose presently to appear.` This shell may be cast from iron, aluminum or other suit-able material. A

8 represents a front plate or closure Afor central vertical sectional view :the shell, made preferably from pressed metal, such as sheet iron, sheet aluminum or the like; and 1t includes a'hood closure 9,

ymade preferably with a central reflector 1.0

having an axially projecting socket 1l. This reflector proJects into the hood of the shell as shown in Fig. 2; and into the socket 11l thereof is screw-threaded the base of an incandescent lamp 12. Set in the reflector 10 and forming a closure therefor, is theusual `is a sprocket gear 21, around which is engaged a sprocket pull-chain 22, which drops downwardly and extends through a suitable opening` provided in the shell'flange, so that it may be grasped by the hand for the purpose of rotating this arbor.

Also pinned on the varbor 17 is a gear wheelQZl, which meshes with a pinion 24, fast with a gear'wheel 25 on the arbor 18. The gearv wheel 25 engages the pinion 26, fast with a ratchet wheel 27 on the arbor 19. Mounteddoosely on arbor 19,. adjacent the ratchet wheel 27, is a permanent magnet 28, formed with branches 29, between which are a series of armatures 30, coil wound in series, and attached to a guard sleeve 31,

which is made rfast with the shell plate 3.

Pivoted at 32 on a branch of the magnet is a pawl 33, which is urged into engagement with the ratchet teeth by a spring 34, pinned at 35 to a magnet branch. Through this arrangement `of speed multiplying gears, movement is transmitted to the magnet so as to spin the same around the armatures.

One end 36 of the winding is connected v with a spring conductor 37, which'is' secured by a post 38 on a plate of non-conducting material 39, made fast with the shell plate 3. This spring conductor is held so that one end engages a terminal of the lamp base.

`In the present embodiment. the other end looped ends 44 of a flexible cord 45 (fragmentally shown) by means of which the structure may be suspended from` the wall or any suitable support.

In the embodiment herein presented, the left portion of the endless chain 22 isgrasped by the hand and pulled downwardly to rotate the arbol` 17, and in consequence thereof, to spin the magnet. By consistently pulling down the endless chain in this manner, a continuous flash may be obtained', the duration of the flash depending, obvifI ously, upon a substantially'continuous movement of the chain. T he front plate 8, which carries the reflector and the lamp, may be readily removed and as readily applied without disturbing any of' the working` parts, which, as above described, are permanently attached to the( shell.

Having thus described my invention, what I claim iS:-m

l. The combination with a casing formed with a. hood consisting of -a drum-shaped shell and a front closure plate therefor, and having means by which to be suspended from a support, of a reflector and an incan descent lamp set in said hood of said closure plate, a cmrent-generator located in the casing below the hood and connected in circuit with the lamp, an arbor carrying a sprocket gear located at the lower end of the casing, an endless chain engaged with said sprocket gear and depending therefrom and through vthe casing, and mechanism arranged be tween said arbor and said generator -for 1conveying motion from the former to the latter.

2. The combination With a casing formed with a hood consisting of a drum-shaped she-ll and a front closure plate therefor, and provided with means by which to be suspended from an object, of an incandescent lamp supported in said hood of' said closure plate, a skeleton frame provided in the casing and carrying a current-generator below said lamp, means connecting the lamp in circuit with the generator, said skeleton frame including an arbor provided with a sprocket gear, an endless chain engaged on said sprocket gear and depending therefrom and through the casing, and speed multiplying gearing carried by the frame for conveying motion from said arbor to said generator.

3. The combination with a casing Acon'- sisting of a drum-shaped shell and a front closure plate therefor, said drum-shaped shell and closure plate being formed with projecting portions to form a hood, of means formed on the shell on either side of the hood for suspending the structure from an object, a reflector set in said hood of said front closure plate and carrying an incandescent lamp, a current-generator located in the shell below the hood and connected in circuit with the lamp, an' arbor carrying a sprocket gear located inthe lower portion of the shell, an endless chain engaged around said sprocket gear and depending therefrom and through an opening inthe shell, and mechanism supported entirely by the Shell and arranged between said arbor and said generator for conveying motion from the former to the latter.

4. In an electric lamp, the combination of a easing formed with a hood consisting of a drum-shaped shell and a front closure plate therefor, means on the casing by which to suspend it from a support, of a reflector and an incandescent lamp set in the hood of said closure plate, a current-generator located in the casing, a rotatable arbor carrying a sprocket gear located in rthe casing below said generator, an endless chain engaged around said sprocket gear and depending therefrom and through the casing, said chain being adapted to be drawn by the hand whereby to effect the rotation of the arbor, and mechanism consisting ot' speed multiplying gears arranged vto be driven by said arbor for conveying motion to said generator. l

This specification signed and witnessed this eighth day of March. 1920.

FRED EVANS. Witnesses:4

FREDK C. FISCHER, FERDINAND NoLL.

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