Battery hand lamp
US 1433570 A
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Description (OCR text may contain errors)
F. G. STMSON.
BATTERY HAND LAMP.
APPLlcATloN FILED ocT.
Patented Oct. 31, 1922;
/N VENTO/e ams an,
e929?! y W A TTORNE Y Patented Oct. 3l, 1922.
UNITED STATES PATENT OFFICE.
FRANK G. STIMSON, OF NEW HAVEN, Cl'.)NNECICU'I7 ASSIGNOR TO WINCHESTER REPEATING ARMS COMPANY, OF NEW HAVEN, CONNECTICUT, A CORPORATION OF CONNECTICUT.
BATTERY HAND LAMP,
Application filed October 20, 1921.
To all whom it may concern:
Be it known that I, FRANK G. STIMsoN, a citizen of the United States, residing at New Haven, in the county of New l-laven, State of Connecticut, have invented certain new and useful Improvements in Battery Hand Lamps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
The present invention relates to battery hand lamps of the type in which the distribution of light from the lamp can be altered to suit the needs of the user.
In accordance with the present invention, the reliector for the lamp can be moved relatively to the lamp bulb and its socket to alter the spread of the projected light and to produce, when desired, a beam of substantially parallel fays adapted for projections to a distance of several hundred feet.
In the preferred embodiment of the invention, the inner and fragile terminal of the lamp is protected from destructive thrust of the upper battery terminal and means is provided for the convenient storage of a spare bulb. Renewal of a worn out bulb is made easy, and the hand lamp has other useful and novel features as hereinafter pointed out more at length.
In the accompanying drawing- Figure 1 :is a sectional elevation of one embodiment of the present invention;
Fig. 2 is a fragmentary elevation of the front end of the hand lamp;
Fig. 3 is a section on the line 3-3 of Fig. l; and
Fig. f1 is a section on the line 4-4 of Fig. 1
In the preferred embodiment illustrated in the drawing, the hand lamp comprises a tubular casing 1, preferably of insulating material such asliber, which serves as a container for a plurality of dry cells 2 placed end to end therein in the usual manner. At the bottom of casing 1 is a collar 3 and a bottom closure or end cap l threaded thereto and carrying a coil spring 5 which makeseleitrical connection with the naked bottom of the lowermost dry cell and which serial No. 508,989.
holds all of the dry cells in good electrical contact with one another and with the mechanism the front end of the casing.
@n the front end of the is a threaded flanged collar 6 held in place as by lmetal rivets l'. Threaded to this a flaring meta-l head. S threaded at its front end to receive a ring 9 in which a plain lens 10 is permanently mounted. The front end the fiber casing is provided with a closure 11 held rigidly in position by rivets 7 and consistingY of a cup of insulating material having a central depression 12. leaf spring 13 housed in said depression has an extension which passes through said closure at .14. and is clamped against the bottom of the ber cup by tangs Y15 pressed up therefrom and inserted through openings in the liber and clinched over, as shown in lthe drawing. The upper brass terminal 1G of the series of dry cells bears against the extension of spring 13 and thus establishes electrical connection therewith. lVIounted on the top of said fixed closure is a metal plate 1'? having lingers 18 passed through the bottom of the iiber cup and clinched over, as shown in the drawing, to -hold the plate in position. Electrically connected with this plate and preferably integral therewith is a threaded lamp socket 19 in which a lamp bulb 20 is normally mounted with its inner terminal bearing against spring 1B and thus electrically connected with the battery. For best results, this lamp bulb should be of a type in which the tungsten lilanient is concentrated at approximately a pointL Better results can be had from such a lamp than from those using the common S-shaped filaments.
Lamp 2G is provided with a rellector 21 approximately parabolic in contour and hay-- ing` at its front edge an outwardly extending lange 22 clamped between the lens porting ring 9 and the 'Front edge of head 8. This reflector is separate rrom lamp socket 19 and eleftrically insulated there.A from by a suitable air gap, and has an opening' large enough to permit removal of head F and its supported parts without disturbing bulb 2O in its soeiiet 19, In other words, the central opening of the reliector is larger 'than bulb Q0.
The cup-shaped closure 1i is deep enough to torni at the 'trent end oi the easing an annula 'l eoiiiliartnient in which one or more spare lainp bulbs Q3 can be stored ind conveniently carried about. Preferably the cup is lined with a ring` ot paper or other insulating;V material, so that the nietal socket of a spare bulb Q?, may not bridge the between the adjacent lainp socket 19 and one oit the nietal rivets l and 'thus expose the hand lainp to the danger ot inadvertent lightingl ra'lien laid down on a. nietal sur- Y or placed .in rontaet with nietal tools. it stationary niet-al strip is fastened to the` casina by rivet 25 and has its bent liront end introdrufed through an or ing; 2li iu` tlze insulating Cup and yieldinggly pressing` against the edge et plate ll' and thus establisliingv connection with the outer terininal 'i lainp 20. ,llie other ol oi i strip is proyided Ywith an outwardly bent linger 25h which passes through a hole in the casing` and is enveloped by a housing,` to which is riveted a leat spring* 2S, 'the tree end oit which shaped to torni a pan or tliuinb plate 29 opposed to linger 25D and. by which the tloiv of current to the. lauip eau be controlled. lny the eo-nstruetion shown, this swinging eontart elenien't Q8 can be hel( in permanent engagement with linger 25h by first pressing* it down and then sliding; toi-ward a rougliened thunib piece l0 which rari-ies the liiie'ei 3l adapted to dis/anfrage :troni a slot in eleineiit and therezfr to slide alo-iig` the outer tace ot 'that eleinent and hold it in engagement with tiafger 25h.
lilith the switch mechanism ot' the aeter described. the circuit can be tarily closed. as for s'j'ialingr with the code. by a siniple tliuinb pressrue on thi.Vl l the lainp can be berne l i pan 29. o ii desired7 f. continuously by lirst pushiiigggv inwird oi pan 29 and then sliding the thuinb forward against element 30 te inoife finger 3i into sueli position that it Will liolil the spring' ient in circuit elosinn' relation.
the Construction above i with i particularly when usine; a lmnp uil fliicli the ligijlit-.friyinq laniezit in to approximately a le point. the iight, rays can be sent iut .troni releetor 2l through lens one another.
l0 substantially parallel The narrow beain ot' light so `pinduced will carry to a long` distaiiee. .it a wider beani is desired, the entire head oi' mesmo and the reflector adjustment best suited to lainp 2O is not necessarily the adjustmentbest suited to lanip 28.
To yieldingly lock the head in its adjusted position, collar 6 has pressed therein a pr' j sting' lug 32 (Fig. 9.), and the lower edge oi" the nietal head S is pressed outvmidly te terni a plurality oit recesses 'tor uglinenient with said lue` to yieldinnly lool; the head against inadvertent rotation on said collar.
li? the user desires a more diffused light than can be had by adjusting' `the rel'lector aloifiu the axis ot tl lanip bulb. it is por sible to entirety unserew and reiimre head il and its supported retleetor and leusI without iilisturbing;l 'the operative relation beA4 'tween the battery and lz nip El), and without even opening' the cireuit throne? the lamp. lily this change the hand lanip is converted into what is iii eii'ect battery candle. tor the bulb of lamp 2O is positioned beyoinl the liront edge oi'f the casing` and so is lree to send its light in substantially all directions.
lrlarious changes niay be niade iii-the toi-m 1 l el in :i battery hand lauip. a easing'. a
y therein. an electric bulb and :i 'therefor mounted independently olf *t* r in said easing. a threaded ineina reH lroto lill vWely to said bulb to alter e projected lieht. one olf said i and the otherl havn y pressed therein tor 0u i ist inadaded to sai i plurali J et reeesse. .f M.. 1.. .lor enit einem withv sail i`-` d head against i loclt i on said collara and a rele t i i i the iorward end oil said metal head independently of said bulb. said reflector being movable i axially and relatively 'to said lV b to atei' the siiread of the projected i t substantially as described.
3. ln a battery h' easiiifg. i e elosure` i d oit the. said easing.
i". insula: closure :tor the other end an eleetrie bulb mounted in l a tubular iii- Iein. a rinnovsaid fixed closure and linsulated thereby, said insulating closure having a central depression in the bottom of which is mounted a spring contact member interposed between said bulb and said battery, a reflector' adjustably mounted on the end of said casing for co-operating with said bulb, whereby the spread of the projected light rays may be altered at will, and means for closing and opening the electric circuit through said bulb and said battery at will.
4. In a battery hand lamp, a tubular casing, a battery therein, a closure of insulating material rigidly mounted in one end of. said casing, a bul secured thereto and having a threaded socket, an elect-ric bulb mounted in said socket and insulated by said closure, a spring contact member interposed between said bulb and said battery, means for closing and opening the electric circuit through said bulb and said battei-y at will, a reflector mounted in said casing independently of said lamp and its socket, means whereby the relative longitudinal position of said bulb and said reflector may be varied for the purpose of altering the spread of the projected light, and means for yieldingly locking said reflector in any one of several positions to give the desired distribution of the light, substantially as described.
5. In a. battery hand lamp, a tubular casing, a battery therein, a removable closure for one end of said casing, a closure of im sulating material rigidly mounted in the other end of said casing, an electric bulb mounted in the said fixed closure and insulated thereby, means for closing and opening the electric circuit through said bulb and said battery at will, means whereby the spread of the projected light rays may be altered at will, said insulating closure having a central depression in the bottom of which is mounted a spring contact member .interposed between said bulb and said battery, and a threaded metal socket for the lrece'liition ot said bulb and having at its inner end an outwardly extending annular plate n'iountcd upon the outer face oi said insulating closure.
6. In a battery hand lamp, a tubular cas ing,a removable closure for one end of said casing, a fixed closure for the other end of said casing comprising an insulating cuplilre member rigidly mounted in said casing, a spring centrally located in said insulating member, a metallic plate rigidly attached to said insulating member and having a forwardly projecting threaded socket, an electric bulb mounted in said socket and in contact with said spring, a battery in said casing with its forward pole contacting with said spring, means whereby the electric circuit through said bulb and said battery may be opened and closed at will, and means.
whereby the spread of the projected light rays may be altered at will.
7. In a battery hand lamp, a tubular 'casing, a battery therein, a removable closure for one end of said casing, a fixed closure ttor the other end of said casing, an electric bulb mounted in said fixed closure, a reflector adjustably mounted on the end of said casing for co-operation with said bulb whereby the spread of the projected light rays may be altered at will, and means for closing and opening the electric circuit through said bulb and said battery at will, the said fixed closure being rigidly mounted in said casing and comprising a cup of insulating material having a central depression, a metallic spring mounted in said depression and interposed between said bulb and said battery, and a threaded socket rigidly fastened to said cup and in which said bulb is mounted, substantially as described. l
8. In a battery hand lamp, a tubular insulating casing, a battery therein, a removable closure for one end of said casing, a fixed closure for the other end of said casing, said iiXed closure comprising a cup of insulating material having a central depression, a spring housed in said depression and having an extension passing through said cloure and against which said battery presses, a metal plate mounted on the top of said fixed closure and having an outwardly projecting threaded socket, a lamp bulb in said socket, a switch mechanism by which the battery current is controlled, a stationary, conductor leading from said metal plate to said switch mechanism, a reflector insulated from said socket and movable with respect thereto, a threaded collar on the front end of said casing and having a projecting lug, a metal head threaded to said collar and having a plurality'of recesses pressed therein for engagement with said lug to yieldingly lock said head against .inadvertent rotation on said collar, and a lens for said lamp, said lens and reflectory being supported at the forward end of said metal head and being movable therewith to change the spread of of the lio'ht from said lamp, substantially as describe 9. In a battery hand lamp, the combination of a casing, a cup of insulating material closing the front end of said casing, a lamp socket carried by said cup, and a re- Hector for the lamp, said insulating cup being of a size to provide storage space for a spare lamp bulb beneath said reflector and at the side of said lamp socket.
In testimony whereof I aliix my signature.
FRANK G. STIMS'ON.