US1124075A

US1124075A - Electric pocket-lamp.

Info

Publication number: US1124075A
Application number: US78812613A
Authority: US
Inventors: Joseph G Swallow
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-09-04
Filing date: 1913-09-04
Publication date: 1915-01-05
Anticipated expiration: 1932-01-05

Description

J. G. SWALLOW. ELECTRIC POCKET LAMP.

APPLICATION FILED SEPT. 4, 1913.

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To'aZZ whom it may concern: y t

tv lniown that JOSEPH Gr. SWALL'om a citiz `e1i pf the United States of America, nd residing in the city of. New York, in the county and State of Nen7 York, have invented a certain new and improved Electric ll)o cketiLarnp,c of which the following is f maar... o

invention relates to electric pocket lamps ,and the object ot' my invention is to provideaV deiiice of this character which is simple, veconomical and efiicient yin construction'andby which anovel control of the directionof the light and of the lanip circuit is secured.

In, he accompanying drawings, Figure 1 is Ya brokenI side' elevation of a pocketlamp of one typein lWhich my inventiony i's einbodiedl inj illustrative' n ianner;V Fig, 2 is a similar" view, at right angles, 'of the .upper y portionzpif the casing showing the bulls eye ina different position; and Fig. 3 is a plan of thel'ampr the bulls eye open.

. The invention is Lhere shown appliedto a pocket lamp of well knoyvn'generally cylindrical .character comprising a casing 1Q of insulating-niaterial within which a battery 11 i's placed. lThe opposite poles of the bat tery12 andy 13 are arranged at opposite ends of the. battery. cylinder, and contact With polelismade at tery by means ofthe .coil spring 14 carried bv the screw ca 15 threaded onv a collar 16 at the lower ,en of the casing 10, The currentufrom' this ,ole of the battery is led through straps 1 andljS, one ofv which is v' connected to the collarl'on the casing, While the other is carried above tie u lper endof ythebattery and bent down ward y to form a terminal 19. Between the adjacentl ends oit' the strap 17 and 18 the usual switch 20 is arranged by which the circuit may be broken between thepole 13 contact. or the lamp is made through this and the contact 19. -operatingwith and f normally in contact with the terminal 19, l

provide aspringstrap.21- -astened tothe lamp casing at 22 from which point aV Heim ble connection 23 leads to the center contact 24 of the lamp. The pole 12 of the battery is pressed by the spring 14 into permanent Contact with the strap 25, the upper end of which is mechanically and electrically con nected with the hinge 26, by means of which the lamp carrier 27 is mounted on the caf*- The electrical connection to the side specification of Leners retenu the lamp circuit is signed.

ring 27 rWell understood manner and consequently not explained in detaill The position o' the centerhcontact 24 of the lamp with relationl to the springstraplQl, is 'such that uponl the si'v'inging of the lamp into alinement with the axis of the casing, the strap 21' is depressed out ofl Contact with the terminal 19, thus interrupting the circuit. As' soon however4 as the lamp is swung on the hinge' 26, into angular position, the springnarlrh 21 rises into contact .with the terminal 1 9, therebycompleting theucircuit throughthe lamp.' The liiu'ge elements at 26 may beflitte'd withl suici'ent friction to hold thelampfin any angular position to which itvmay adjusted; The' latch 28 eng'afges ivit'hiilfand holdsthe llamp ring in closed position' in alinelnent with the casing. The

vsWitcl1'2() is thus in erelyv an auxiliary and is normally left in tlie' on position, since brokenl by tlie return of the lamp to alined position, which is the position of, nonlus'e. for the device Vfor the purposes for which it is particularly de- The lamp Willbe Jfound particularly useful "formet'er readers Who must take their` readings generally in unlighted cellers and make entries upon their meter boolrsat once upon the taking oi" thereading.` The lamp is particularly Lserviceable for this purpose, since it may be dropped intothe outside breast pocket of the coat, in which position the A light is thrown down upon the book While theoper'atofs hands are both il'eft, free forholding the book andmaking th'eentryA therein. At' the same time thepencil is returned. to' the pocket, the lamp may be turned over on its hinge into .oi position, so that the battery current is conseryed. l

T,he. construction shown is but a single embodi ient of my invention andumerdy eigemplies the latter, `Various otherconstructions will readily suggest themselves, and I donot limit myself to the details shownr I claim as my invention l. An electric pocket lamp comprising a casing, a lamp carrier pivoted thereto, selfclosingr spring contacts in the lamp circuit and engaging means on the pi'voted lamp carrier serving to open said contacts in a predetermined position of said carrier.

2. in electric pocket lamp .comprising a rarente'fi aan". 5f, rara, app'ie'ati'on mea september e, i913. serial Nd. sarael' dosing Swine4 Contacts in the lempiciciiit and" engaging means on the pivoted lamp?U tacto, and means on the lamp carrier for automatically opening said switch on the movement of the lamp carrier into predetermined position.. 4

4. In an electric pocket lamp, a casing, a lamp carrier pivoted thereon and normally alined with the casing, a battery in the casing, circuit connections therefor through the lamp, said circuit comprising a pair of selfclosing spring contacts and a bearing member on said lamp, carrier serving to open saidv contacts when said carrier is in its normal position, but moving out of engagement with said contacts to permit the same l to close when said carrier is moved into angular' position, substahtially as described.-

5. An electric pocket lamp comprising a casing, a lamp carrier pivoted thereto, spring contacts in the lamp circuit automatically closing to complete the lamp circuit in, the open position of the lamp carrier and engaging means on the carrier serving to open said contacts and break the lamp circuit when the carrier is in closed posin 'tion on said casing.

d," An electric pocket lamp, having a casing, a bulls eye pivotally mounted with relationthereto, a lamp carried by said bulls eye, spring contacts in the lamp circuit constantly` tending to move into closed position and means for separating said contacts in the closed position of said bulls eye and for yfreeing said contacts during the initial opening movement of said bulls eye wherebythe lamp circuitv is maintained through the'major portion of the arc of travel of said bulls eye in its open position. l

7. n electric pocket lamp comprising a casing, a lamp carrier pivotally mounted thereon, a exible'c'onductor in one branch ot the lamp circuit and moving with the seyne i: sin patent my be obtained for lampf'jczr pivot, Aspring contacts"V 1n the lamp circuit, and vin'leax'is for opening the circuit at said t1# site latter is wanen-is contacts'only in the closed' position of the lamp carrier.

8. An electric pocketA lamp comprising a casing, a lamp carrier pivotall'yl mounted thereon and having an open andclosed po-- sition with relationthereto, spring contacts in the lamp circuit open in the closed position of the lamp carrier but automatically closing to complete 'the lamp circuit on they movement of the lamp carrier. into open posov sition, said carrier having a substantial arc 1 of movement. while the contacts are in closed position, substantially as described.

9. An electric pocket lamp comprising a casing, `a lamp carrier vpivotallyi mounted thereon, spring contact in the lampv circuit constantly tending to move into closed position, contact engaging means on the lamp carrier parting said contact on the closed position of the carrier but freeing the same during the initial portion of its'movement into open position, whereby said contacts are freed andmove into closed position' for the major portion of the arc of movement of said carrier, substantially as described.

` 10. An electric pocket lamp having a battery casing, a b ulls eye pivotally mounted thereon, a lamp carried by said bulls eye, a constant electrical connection to one terminal of the lamp through the battery cas- 'y ing, a switch in the connection to the other lamp terminal, saidswitch comprising spring contacts constantly tending to move into closed position, means for separating said contacts in the closed position of the lbulls eye and for freeing said contacts during the initial opening movement of said bulls eye whereby the lamp circuit is maintained through the major portion of the arc of travel of said bulls eye in its open position, together with a flexible connection between one of said switchvterminals and the coperating lamp contact, for the purpose described.

\ In testimony whereof have signed my name to this speciiicatiomin the presence of two subscribing witnesses.

JOSEPH G. SWALLOW. Witnesses:

JOHN P, SHAY, L. K. SATTn-mnn.

ve cents each, by addressing the Commissioner of latenti, Washington, D. 0.