US 1471185 A
Description (OCR text may contain errors)
oct. 16,1923. 1,471,185
L. A. MILLER HANDLMI;J sw-ITGH Filed July 15 1921 y:ses
Patented oct. 16, 1923.
g juNrrE-of ,STATES rArrENr:forrlcegii "genis @mins-n, crusty" I g PEATING. Aims op., `o1'j NEWHiAvEN, oonNncrrcUnfA c z'oRroitterroir"orv coitnieuwe.'
Taal?, whom 'it muyconaerm'.. f 'Be it vknown thatl, LoU1s.A...M1LLER, a citizenhof the United. States, residing. .at New Haven',y intheweomty orti New..Haven, State of Connecticfut, have invented .certain new and, useful flmprovemer-its.yy in...Handlamp Switches and: L do .hereby ,declare the .follofwing tobe a' full,.c.lear, and? exact. description Vvofi the.- invention.= sucht` as. will .enable others skilled in thefart to which itiapperf' f opening, throughy .Whichnthe .button .shank extends.. The shank `fis. ,provided .with .annui- .1an ribs 12 andl.onoppositesidesof the tains, to-made and userthe same...A .l 4 ..My.inventionnisfan improvement in .the switches of battery hand.. lamps.. I .In the usual constructionp such ..liandlamps,. .the reireuitof. the lampis controlled .by aiswitch usually ,including a :push v.louttoni supported ,inf inoperative .position ,by f a spring land adapted to be depressed toclose L' the .cire-uit. 'Unless careris .exeroisedin thedisposalof the lamp when notizn use,..the .circuit may4 be `accidentally closed, .with .consequent vaste of. current` and rapidexbaustion offzthe bat.- tery.' vIn the use of such lamps, there is often occasion.. for a,-steadynlight, .Without atten- .tion on! the vpart of the y.usen With the push button .type ofswitch, which4 becausey of sm- .pie construction. ease ooperation and-.abil- .iity to: lwithstandxrough usage, is .the pref fel-'red type; the switch must .be .heldA .Closed `when a steady light .is desired.| The ,object ofN the Ypresent..invention .is to provide.. imiproved mechanism in connection witlnthe switch by. means otqvhifh theswitch may be locked in either open or` closed position, against rpossibilfi/tyrofr accidental .displacement.
In the drawings: f
Figure 1' is a side view of a usual form of battery handL lamp.
y Figure 2 is a plan view with parts in section', f
Figures 3 and 4 are partial side views and with Figure 1, show the three positions of the switch locking mechanism,
Figures 5 and 7 are sections on the lines 5 5 and 7 7 of Figure 3, Figure 6 is a. section ony the line 6 6 of F igure 4. f
The present embodiment of the invention is shown in connection with a battery hand lamp of the vest pocket type, comprising a case 1 having` at one end a socket 2 for receiving the bulb 3, and having at the other a hinged door 4 for'permitting the insertion and removal of the battery indicated at 5.
y-pplication-'tiled July 415, 1921. Serial No; 484,844. Y
tormerncontacting.with:the bulb, While the otherisadaptedto be. engagedbya Switch, tn be- ,descrbedg.f.or closing. the. circuit throughthelam ,f The switch-inelufdesabutton lextending .through a-'nopening4 .9 in. .thee-ase7 and. SupportedA byv .a plate. for, leaf Spring; 10, rigidly secured at.. one. .end to. the: ease. as indicated; et yvll, andhaving at theothen end .a .bearing spring, for preventing displacement thereof, and the spring normallyholds ythe buttonin outward .position .andout` of Contact. with the contact plate. 7.; ,Thecircuit ofthe lamp isA closed by. dep'nessing,l .the button., t0 cause .the l.inner .end thereof. .to ,engagethe .contact plate 7..of..the hatterym. f. With this arrangement, when thejhand lamp yis placed` inthe pocket. for instenceg 01 in any otherpositionwhere the button might .engage with another ,obj ect, f the, button ,may be accidentally. depressed, t0. close .the circuit .through thelamp.. i This :results in rapid exhaustion of .the batterykmflo prevent such waste .ofcurrenn .mechanism is ,provided .QI ,locking the switch in :open position.
The .said mechanism ,is-inthe..frrrl...0fI a slide: 14,.: having guided? movement,..l.ongitur .dinallyof thecase 1g. and .encirclingthe lint- ;ton.z...'lly`he'.slide,.mhichr is.l in .theiformof an .escuteheom is. slidably connected IWith .the case .inianv suitable .mannen .f as. 01'. installe@ by lugs 15 at the sides ofthe slide,` which extend through slots `16 in the case. The slide has a longitudinal slot or passage 17 through which the button extends, and this slot is of key hole shape as shown in Figures 1, 3 and 4. The Widest portion of the slot is of a diameter corresponding substantially to that of the diameter of the button, While the narrowest part is of less width than the diameter of the button, and the button is annularly grooved as shown at 18 to permit the slide to move forwardi While the button is inits `outer position. When the button is in the narroivest part of the slot, the opposite sides of the slot engage Within the annular groove, effectively locking the button from movement in eitherv direction, and when the button is depressed so that the slide will move over the button, the sides 19 of the narrower portion of the slot will move above loek the saine in desired position. The loeling device may he oi erated by the "hunih iV/ #in .irl 1, 11 a, if 19:0. l .1 i rn pars Ln in pinion oi Urine l, the button is tree to move inward or outvfard. To leek the syvitrh in open position. it is only necessaryv to push the s. the bulb, this position the parts being shovrn in Figures 3 and tins 19 noiv enter the annular eroove TS the button is looked in open iliosition l t for any reason it isdesired to lrve a steady light. the button may he deprI and with the same linger or thumb the l n slipped downwardly to brine' theivings or tins above the button, as shoivn in Figures el. and G. rThe siviteh is now locked in operative position, and the lamp vfill ourn steadilj,v until the switch is released. 'To unlock in either position. .it is only neces-...nfs to slide the plate inwardly.
My improved siviteh mecha iisrn has been shovvn applied to a hand lamp ot .the tint or vest pocket type, but it vvill 4ot' Course he understood that it is equally applicable to the `Qo-ealled tubular ease and to eases oother design.
1. A Contacty device tor battery hand lamps, comprisingl a springeontrolled push button manuallj.v operable troni open-Circuit to closed-circuit position. andv a slideinovable longitudinally ot the lamp surrounding said push button and adapted to engage the upper surtaee ot said push button ivhen in Closed circuit position. to retain the saine in such position, said pnsh button .having a single `groove engageable by said slide when said push button is in open circuity position to retain the samey in such position, said push button and slide being arranged so that they may be actuated as desired by the thumb of one hand alone.
2. A Contact. device for battery hand lamps, eoinpri..n;r a lea't spring, a push button mounted thereon, and a slidable lookingr member having; a keyhole .slot adapted to .fm-friet with the top ot ,said push button, said push button having a Ile eireumterential groove adapted to lie engaged by the edges ot the slot in the locking member. said push button and locking member being arranged so that they inay be :ietuatod as desired by the thumb ol one hand alone to flash the lamp by pressing the push button through the large potion ot the keyhole slotr and to lork the push hntton in elo l Cireuit position or in open circuit: position hy moving the slide until the edges ot the keyhole slot engage the push button, substantially described.
A Contact device tor battery hand laups ernipisinsj a slide in the 'torni ot an eseuteheon arranged torguidel inmement longitunlinally ot the lamp easing4 and having a keyhole slot therein. a leaf springr fixed at one end to the handlamp easing, a push button mounted on the tree end ot the spring and extendinq through the hand lamp easingr and the keyhole slot in the slide, said p ii button havin;T .a single lgroove. engage able by the narroiv portion ot saidA keyhole slot., said push button and slide beingr arranged so that they may he readily manipulated as desired by the thumb ot one hand alone, to tlash the lamp, to press the push button into Closed circuit position and move the slide over the top thereof, to move the `slide until the narrow portion of' the slot therein engages the groove in the push button, or to release the push button after it has been loekedin open or closed circuitI position.
In testimony Whereot` I affix my signature.
LOUIS A. MILLER.