US1436798A - Flash light - Google Patents

Description

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3 HedIv-anr Patented Nov. 28, 1922..

F. EVANS.

FLASH LIGHT.

APPLICATION FILED MAR, 22, H120.

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Patented Nov. 28, 1922i.

' UNITED STATES PATENT orifice.

FRED EVANS, OF SUMMIT, NEW JERSEY, ASSIG-NOR TO LOUIS V. ARONSON, OT NEWARK, NEW JERSEY.

FLASH LIGHT.

Application filed March 22, 1920.

7 10 JZ whom it may concern Be it known that l, Fran; EvAN-s, a citizen of the United States, residing yin the city ot Summit, in the county oi Union and-State of ew Jersey, have invented certain new and useful improvements in Flash Lights, of which the 'foilowiug is a tull, clear, and exact description.

My present invention relates to improvements in pocket flash-lamps and it consists in the details of construction and in the arrangement and combination ot parts herein described and claimed.

rlhe paramount object of my invention is to provide mechanism whereby, through the reciprocating movement ot a push-rod, to impart continuous movement to the train of speed multiplying gears required for the actuation ot' the current generator.

Jfurther object ot my invention is to provide certain Jfeatures of improvement in the manner of making contact with the lamp terminal.

Other objects and advantages will appear in the following specification, and my invention is illustrated in the accompanying drawing forming part ot' this application, in which Y Fig. l is an elevational view of my improved iiash-lamp with the front casing section removed. showing the arrangement ot the interior parts.

Fig. 2 is a central longitudinal sectional view.

Fig. 3 is a horizontal cross-section, taken on line 3-3'of Fig. 1. l

1n carrying out the present invention, I prefer to employ an elongated casing having rounded ends, the same being made up of complementary sections, cast from iron aluminum, or other suitable material. Thus, in the accompanying drawing, 4 represents the elongated section for the front of the casing, being cast with rounded ends 5 and 6, and with a side flange 7 all around. 8 represents the elongated rear section, similarly cast with rounded ends and with a side flange 9 all around. Centrally of the rounded end 5, the meeting flanges 7 and 9 are each cast with one-half of the circular opening 10. The meeting edges of the flanges 7 and 9 are cast or otherwise made with overlapping tongues 11, which are provided with suitable threaded openings for bottom of the bore Serial No. 367,926.

the reception ot screws as 12, whereby the an axial socket 14, in which is screw threaded the base of an incandescent lamp 15. This reflector carries lens 1G formed on its outer side with al convex surface which projects through the opening 10 as shown, and which is designed to intensify the rays of light. Below the reflector socket 14, the plate 8 is cast with a projection 17 having a forked end for the reception ot a spool-shaped element 18, consisting oi' nonconducting material; the opposing flanges 19 ot this element engaging over the top and bottom faces of the forked end, as best shown in F ig. 1. The vertical body of the element 18 is provided with abore 20 in which is seated a tubular pin 21, formed with a head designed to engage a terminal of the lamp base. Coiled around this pin is a spring 22, which is 4confined between the and the head of the pin, so as to urge the pin into tight engagement with the lamp terminal. l

F or supportng the remainder of the working parts, I provide a plate 23, which extends upwardly from the flange 7 alongside the front plate 4, centrally'thereof, and which is connected with the rear plate 8 by the arbors 24, 25 and 26, arranged in parallelism as shown'. Extending across the casing and through suitable openings provided in the iange 9 is a push-rod 27 whose intermediate portion consists of the rackbars 28 and 29. The rack-bar 28 extends above the arbor 24 and has its toothed edge in engagement with a pinion 3() loose on said arbor; while the rack-bar 29 crosses below thev arbor 24 and has its toothed edge in engagement with a pinion 31 also loose on said arbor. Both pinions 30 and 3l have ratchet teeth cut in their faces. Fast on the arbor 24, adjacent the pinion 30, is a collar 32 in which is set a pin 33 normally urged by a spring 34, into engagement with the ratchet teeth or its pinion. In like manner another collar 35 having a spring urged pin 36, is provided for the pinion 3l.

When, under this construction, the pushrod 27 is thrust to the right, the pinion 30 is turned to the right, while the pinion 31 sof is turned to the left; and, conversely, when the said push-rod is thrust to the left, the pinion 30 is turned to the left, While'the pinion 31 is turned to the right. Now, during the turning of the pinion 30 to the right, the arbor 24 is turned in a similar direction because of 'theengagement of the pin 33 with the ratchet teeth of this pinion; and in this instance the pin 36 is not active on its pinion since it yields from the teeth 4thereof. On the other hand, during the movement of the pinion 31 to the right, the arbor 24 is turned to the right because of the engagement of the pin 36 with the ratchet teeth of its pinion; and in this instance, the pin 33 is not effective since it yields over the ratchet teeth of its pinion.

either to the right or tothe left, the arbor 24 is turned to the right. At each end of the intermediate rack-bars, a spring 36 is coiled about the push-rod 27, the purpose being to re-position the latter automatically after each thrust, Whether made to the right or the left.

Fast on the arbor 24 is a gear Whee1-37 with Which is connected a pinion "38, in mesh with a gear Wheel 39, fast- Witli a pinion 40 on the arbor 2 5. The gear Wheel 39 meshes with a pinion 41, fast With a ratchet Wheel 42 on the arbor 26. Loosely mounted on the arbor 26 isa permanentmagnet 43, formed With branches 44, between Whichare a series of armatures 45, coil wound-in series, and attached to a guard sleeve 46, Which is made solid with the rear plate 8. Pivoted at 47 to a branch of the magnet is a pawl 48, which is held inengagement With the teeth of the ratchet Wheel by means of a spring 49, pinned at 50 to a magnet branch. Through this train of speed multiplying gears,y the continuous movement of the arbor 24 is utilized to cause the magnet 43 to spin around the armature coils and set up a' current. One end 51 01E-the Winding leads to a In other words, under the thrust of the push-rod 27,

binding postA 52,' Which is screw-threaded-- into the spool-shaped insulation 18, in position to enga e the interior of the pin 20, and y so conduct t ecurrent to the lamp terminal.

The other end 53 of the Winding is grounded on the casing at 54,- to which pointthe return from the lamp is effected through the llamp base, the reflector and the casing.

The push-rod 27 may be conveniently actuated by the thumb of the hand in which the Hash-lamp is carried; and from the foregoing description, taken in connection with the accompanying drawing, it will be un# derstood that a continuous flash may be obtainedby actuating the push-rod repeatedly in quick succession. v

y Having 'thus described my invention, what I claim is The combination of a casing consisting of complementary sections provided with an opening, of a reflector 'and an incandescent lamp supported in said opening, one of said sections being provided with supportingmeans, Contact making means for said lamp'- removably located on, said supporting means, a gear train supported in saidcasing including an arbor, of a pair of pinioiis loosely mountedA on the' arbor and having y ratchet teeth cut in their faces, a collarv for f each with `a pinion, whereby upon' movement of the push-rod in either direction the arbor will be moved only in one direction,

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

FRED EVANS. Witnesses: l

FREDK C. FISCHER,

, F. NoLL.

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