US1450500A - Flash light - Google Patents

Description

Apr. 3, 1923.

1,450,500 c. w. HARVEY FLASH LIGHT Filed Jan. 17, 1922 Patented Apr. 3, 1923.

UNITED srATEsrarENT OFFICE.

CHARLES w. HARVEY, or NEW Lennon; ooimncrroo'r.

FLASH LIGHT.

Application filed January 17, 1922. Serial No. 529,843.

To all whom z'tmwy concern: through the flash light taken on line 4-4 of Be it known that 1, CHARLES W. HARVEY, Figure 1. g

a citizen of the United States, residing at Referring to the drawings, the numeral 1 New London. in the county of New London, designates a cylindrical casing, the rear end State of Connecticut, have invented a new 2 of which is enlarged and has secured thereand useful Flash Light; and I do hereby deto by means of rivets 3 one end of a coiled clare the following to be a full. clear, and spring at which forms a spring motor. The exact description of the invention, such as other end of the coiled spring is secured at will enable others skilled in the art to which 5 to a drive shaft 6. The forward end 7 of 10 it appertains to make and use the same. the shaft 6 drives a gear train 8 through the The invention relates to flash lights of medium of the gear 9, said gear train bein the portable type and has for its object to so constructed that the drive shaft 10 which provide a flash light of this character which drives the generator 11 will revolve preferis small. durable and so constructed that an ably from two thousand five hundred to three 15 electric light will be lighted through the thousand revolutions per minute which is medium of current generated by a generator, sufficient for the generator 11 which'is an said generator having a gear train connecalternating current multipolar generator to tion with a spring motor. Also'to provide generate electric current sufiicient to li ht a rotatable sleeve forming a handle member, the electric bulb 12 when the holding isc 2 which sleeve may be utilized for winding the 13 is released and the generator allowed to spring motor. It has been found that where revolve under the control of the spring mobatteries are used in flash lights that it is nector. The disc 13 is engaged by a plunger essary from time to time to buy new batteries 14. which plunger when forced downwardl which are expensive and which cannot be at its finger engaging end 16 holds the disc 2 obtained at all times in difierent parts of 13 against rotation .and consequently prethe country, therefore it is an object of the vents operation of thegenerator 11. Howinvention to provide a flash light wherein ever after the motor has been wound by rothe current is obtained from a generator optating the handle sleeve 17 in the rectanguerated by a spring motor within the casing lar shaped aperture 18 of which the rectangu- 30 OI the light. lar shaped portion 19 of the shaft 6 is disj A further object is to provide the cylinposed, said generator will be rotated drical casing with a removable lens carrying through the gear train 8. thereby generating member which is threaded to the casing, said current which may be taken ofl b' a convenlens carrying member being provided with tional form of collector ring 20 rom which a disc threaded therein, which "disc is'proring one side passes to the disc 13' and the vided with a centrally disposed threaded apother side to the spring arm 21 located forerture for the reception of an electric light. wardly of the disc. Threaded at 22 to the bulb socket. forward end of the cylindrical casing 1 is a Withthe above and other objects in view flared lens carried member 23 in which a the invention resides in the combination and lens 24 is disposed. The lens carrying inemarrangement of parts as hereinafter set her 23 has inte'riorly threaded therein at25 forth shown, in. the drawings, described a disc 26. The disc 26 is preferably threadand 'claimed. it being. understood that ed into the flared member 23 from the rear v changes in the precise embodiment of the inside thereby allowing the disc to be easil V 45 .vention, may be made within the scope of and quickly placed in positionor remove what is claimed without departing from the and by placing the disc 26 in the flared memspirit of the invention. ber 23, said disc and lens 24am removed at In the drawings the same time from-fliedevie when it is de- Figure 1 is a longitudinal sectional view sired to-repair or otherwise fix the generator 0 through the flash light. and its adjacent. mechanism. The electric .55 Figi re is a transverse section Figure 2 is a vertical transverse sectional bulb 12 has its-socket 27 threaded "intothe vie taken on line 2-2 of Figure 1. I threaded opening 28 of the disc 26 and its I igure 3 is a transverse sectional view rear end in engagement'with the spring arm through the light taken on 33 of .F i re 1 21. I If so desired a pawl 29 may be proview Vided on the interior of the enlarged portion 11 2 of the casing 1, which pawl may be placed in engagement with the teeth 30 of the ratchet wheel 31 carried by the drive shaft used until the parts are worn out.

The invention having been set forth what is claimed as new and useful is .The combination with a flashlight comprising a cylindrical'casing having its rear end open, an electric generator within the forward end of said casing, a spring motor in the rear open end of the casing for'operating said generator, an electric bulb lighted by said generator, a drive shaft for said spring motor, of means whereby said spring motor may be wound, said means'comprising a cylindrical cup shaped housing rotatably mounted on the rear end of the cylindrical casing and having its bottom in close relation to the rear end of the casing, the bottom of the cup shaped cylindrical mem ber being centrally attached to the motor shaft, a ratchet wheel carried -by said shaft and located between the motor and the bottom of the cup shaped member and a pawl pivotally connected to the inner periphery, of the cylindrical casing adjacent its rear open end and cooperatin with the ratchet and forming means forpreventing retrograde movement of the spring motor shaft.

In testimony whereof I have signed my name to this specification in the presence of two subscribin witnesses.

HARLES W. HARVEY.

Witnesses:

P. LE RoY Hanwoon, FRANK S. JOSEPH.

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