US1157395A - Portable electric light. - Google Patents

Description

C. HUBERT. PORTABLE ELECTRIC LIGHT. APPLICATION men DC.16. m4.

Patented Oct. 19, 1915 \N Q mw MN mi IN VE/V TOR wlrmzsEs JITTORIVEY vented certain new vterial and sometimes lamp in electrical connection with the concon'aan crooner, oacnarna'm nononenjunw Janene.

i ron'raBLn nnnc'rnic Liana. 4

To all whom it may concern:

'Be' it known that I, Comma HUBERT, a citizen of the United States, residing at the borough of Chatham, 1nthe annuity of of New Jersey, have inand useful Improvemerits in Portable Electric Lights,of Which the following is a specification, reference being had" therein to the accompanying drawings, forming part thereof.

My invention relates to portable electric lights suitable for carrying about lIl the pocket or otherwise and adapted to be held Morris and State 1nthe hand in use, such-electric lights being c'oin'rnonly known flash. lights. My invention more particularly relates to that type of these lightslmown astubular flash lights, and to that kind of flash lights (tubular and other) having a metal shell constituting the principal part of 'thecasing and forming a part of the electrical circuit.

In-tubular lash lightslthe battery usually consists of a series of dry cells placed end to en'din the usual insulating covering or container, which is simply a thick paper tube open at both ends, so trode ofjthe uppermost cell'inay make contact with the central terminal of the lamp,

and the zinc electrode cup ofthe lowermost cell will be exposed at the bottomgwhere it.

is electrically connected, by means of a coiled-compression spring, W 1th a metal cap forminga removable closure for the casing.'

A miniature incandescent electric lamp is carried by and is, commonly in electrical connection-With a metallic reflector which carries the metallic screw-threaded socket of the lamp, andi whicl is commonly held in place by the lens and the lens-holding ring,

the latter beingQscreWthreaded oyer an exposed metal endpart of the casing shell. tubular shell of the.

The mainpart of the casing is sometimes of nonmonduct ve maductive reflector and the battery in electrical connection with. the bottom and cap, as

ng conductive reflector from the batteryconnected bottom co: er cap and to provide for hridgingthis insulation by means ofmanually cont rolled circuit completing means. Zt is 1 "be exposed'at' the outside of the leasing,

Specification of Letters Pateuti that the carbon elecw1th parts omitted, as.

of metal. With the,

I taining flanges, as shown in vone, of the-retaining flanges, for example, the

inner one, being formed by upsetting the;

ghly desirable that only one; a battery terminal shall as otherwise the two fiector at the inside of the casing from the Patented o 'e. relic, Application filed December 16, 191;. Serial No. aware,

and to accomplish this result.

exposed lens-holding metal ring and also from the. usual exposed metal end part 'Which carries the lens-holding ring. An ex.- ample of such a constructionwlth an ail meta-l shell is disclosed in British Patent No. 9050 of 1911. I

Objects of my invention construction, inexpensiveness of manufao ture, durability, of maintenance in operable condition, and other more particular objects or advantages which will hereinafter appear;

My invention includes features of constiuction appear from the following description. V I shall now describe the portable electric light illustrated in ings embodying thereafter point out my invention in claims.

Figure. 1 is a central longitudinal section of i a tubular port-n;

with parts in elevation, able electric light embodying my invention, with the circuit in the closed condition. F 2-is an elevation, partly in section and Fig. 1.

viewed from the right. Fig. 4 is a section similar to Fig. 1 on a larger scale with parts omitted 1 and with the circuit in the open condition.

The tubular portable electric light or flash light embod.y1ng my invention illustrated in the accompanym'g'drawings has a casing".

provided with a metallic screw-threaded lamp socket 1 carried by and ihsulatecl from a metallic reflector '2. The conductive. lamp metal after the lamp socket: 1 is The lamp v in place, socket 111s shown as insulated and combinations of parts,-.as will the accompanying draw my invention and shall seen from above in Fig. 1s a transverse section one 4 plane ind cated by, the line 8--3 of Fig. i as drawings,

are simplicity of certainty of operation. and

from the reflector Q -by means of an lllSUllil-r mg ringorcollar fi in the opening in the reflector, an insulating Washer '4 outward from the reflector i2- andihsuiating the lamp socket lyand 'angilzlsulating I surrounding the inner portionof the ring or material.

collar 3 at the inner side of'the reflector 2. A contact member shown as a slightly dished metal disk or plate 6' is held firmly in place and inelectrical connection with the lamp 5 socket} by the inner flange of such socket and is insulated from the reflector 2 by the above described insulating means for the lamp socket 1. It will be seen that the flanged lamp socket 1 firmly grips .and clamps together the reflector 2, the'conduc- 'tive contact plate 6 and the. interposed insulation, and also is itself firmly and securely held in place. ,I have found that paper is a 'goodmaterial for the insulating washer 4 and that vulcanized fiber 1s suitable for the insulating coliar 3 and insulating disk 5.

An ordinary miniature incandescent lamp 7 is 'shown as screwed into the conductive lamp socket 1, so that its usual outer 'annu lar contact terminal forming thebasc of the lamp is in electric connection with the conductive lamp socket liand contact plate 6. In view of the fact that the conductive end part 9, telescoping over and rigidly se-- cured tothe tubular part 8. A 'usual lens 10'is carried by a usual exposed metal ring 'or band 11 shown asscrew-threaded in the usual way over the outer end of the exposed metal end part 9. The lens 10- and its sup- 0 on the metal end part 9. In this connection it will be noted'that the rim of the is in electrical conductive metal reflector 2 connection with the exposed lens-carrying band'll and exposed screw-threaded metal end piece 9. Commonly heretofore the rim of the reflector has been' insulated from corresponding metal end parts, and sometimes in such instances the tubular shell part, corresponding to'the tubular shell part 8, has ,been'of metal and sometimes of insulating The rear end of thetube has a usual rew-threadd band 12 fixed thereon for is provided at Abattery of common form, shown as com\ prising three dry cells 15 placed end to end andcontained in a usual paper insulating tube. 16, is shown in position in the casing. "The carbon'terminal of the cell adjacent to the-lamp is in'contact. with the central ter 1 m nal of the lamp and; the etal socket 1 is Q5 the other"terminal'ioi -tiled-amp. The-other sp n 1 lamp socket 1 is insulated from the con- I porting band 11 hold the reflector 2 inplace I -t .6 reception of ausual end cap 13 which J p theiinside with a usual bat-o tery-s 'ipporting conductive coiled thrust tive lamp socket in the opening and havterminal of the battery. cell at the rear end of the casing, is in contact with the conductive thrust spring 14. which is metallically connected to the whole metal casing, therefore only interrupted at the insulation between the reflector 2 and lamp socket 1. To obtain the closed circuit condition. for lighting the lamp 7, manual means are provided for bridging the insulation of the lamp socket 1, and for this purpose a movablecircuit closer is mounte on the shell tube 8. As shown, the tube S-has'a longitudinal slot 17 therein forming a guide-way for tubular rivets 18 which secure together a slidable manually actuatable circuit closing member 19 at the outside of the tube 8 and a. longitudinally movable the zinc cup of the 8. A strip '21 of fiber or the like isheld by the rivets 18 between the slidable member 19 and the tube 8 to prevent the scratching of the polished outer surface of the metal tube S'by the sliding of the circuit closing member 19. The slidabl'e member 19 is shown as provided with a rounded projection for 3 manual actuation.

The contact 'strip or finger 21 extends forward within the tube 8 beyond the battery cells 15 and is shown as turned inward at a slightly obtuse angle-so as to overlap and engage the contact plate 6 in the closed. circuit position of the parts, as appears in Figs. 1, 2 and 3 of the drawings,.thus completing the battery circuit from the lamp socket 1 throughthe contact plate 6 and contact strip 21 to the metal tube or shell 8. Movement of the outer slidable member 19 rearward or backward will withdraw the contact finger 21 from engagement with the contact plate 6, as appears in Fig. 4, and will thus establish the open circuit condition. will be retained by friction at either the open or the closed circuit position so as to indefinitely maintain ei'therof these circuit conditions.

. It is obvious that various modifications may be made in the construction shown in the drawings andab'ove particularly described within the pripcipleand scope of my invention.

I claim: 1 1. A casing for a portable electric light including a conductive reflector provided with a socket-receiving opening, a conducing retaining flanges at both sides of and overlapping upon, the reflector, and insulatlng means interposed between the lamp socket and the reflector and clamped upon the reflector by the flanges of the lamp socket to hold the insulating means. and lamp socket in place on the reflector'and to insalute the lamp socket from the reflector.

and the flow of current is contact strip 'or contact finger 20 at the inside ofthe tube The slidable circuit closing parts 2. A casing for a portable electric light including a conductive reflector provided with a socket-receiving opening, a conduc tive lamp socket in the opening and having retaining flanges at both sides of the reflector, insulating; means interposed between the lamp socket and the reflector and I clamped upon the reflector by the flanges of the lamp socket to insulate the lamp socket from the reflector, and a conductive cont o plate heldin place by one of the flanges of the lamp socket in electrical connection therewith and insulated from the reflector by said insulating means.

In testimony whereof I have afiixed my signature in presence of two Witnesses. I CONRAD HUBERT.

/Vitnesses HENRY C. LEWIS, W. X. EASTON.

Images