US1477892A - Handlamp - Google Patents

Description

Dec. 18, 1923. 1,477,892

A. P. PAINE HANDLAMP Original Filed June 9. '1920 2 Sheets-Sheet 1 A. P. PAINE Dec. 18, 1923.

HANDLAMP Original Filed June 9, 1920 2 Sheets-Sheet 2 l giimml Patented Dec. 18, 19 23.

v UNITED STATES PAT -NroFrlcE.

ARTHUR P. PLINE, OF NEW HAVEN, CONNEQ'LICUT, ASSIGNOBIIO WIDTCHESTER BE- PEATING AIR-IS COIPANY, OF NEW HAVEN, CONNECTICUT.

Original application fled June 9, 1920, Serial 11 0. 387,857. Divided .and this application filed June 21, I 1920. Serial Io.- 390,538.

To all whom it may concern:

Be it known that I, ARTHUR P. PAINE, a citizen of the United States, residing in the city of New Haven, county of New Haven,

6 and State of Connecticut, have invented certain new and useful Improvements in Handlamps, of which the following is a full, clear,

and exact description.

This invention relates to hand lamps and 1 it pertainsmore especially to those of the type set forth in my application Serial No. 387,657, of which the present application is a division.

The invention has more particular refer- 15 ence to hand lamps of the ty in which a three-position switch is emp oyed, having a movable element- Which assumes one position for flashing, another sition for permanent lighting, and a third sition, termed 2 the safety position, in w 'ch the switch is locked in an inoperative condition. In certain phases of the invention, however, it is unnecessary that the switch have three distinct positions, as some features of my 2 improvements may be employed to advantage in a two-position or other switch.

One of the primary objects is the provision of improved means for closing and opening the circuit of a hand lamp of the in- 30 sulating casing type.

By my invention, also, I provide effective means for preventing the accidental lighting of the lamp when the movable switch element is in the safety osition.

Other objects are to improve and simplify the construction and to make the switch device compact, eflicient and durable.

To these and other ends the invention consists in the novel features and combina tions of parts to be hereinafter described and claimed.

- In the accompanying drawings:

Fig. 1 is an elevation of a tubularvhand lamp embodying my improvements;

Fig. 2 is a fragmentary central longitudinal section on a lar r scale, showing the switch parts in position for flashing;

Fig. 3 is a fragmentary interior view of the casing-on a still lar r scale; 50 Fig. 4 1s a section on hne 4-4 of Fig. 2;

Fig. 5 is a section on line 55 of Fig. 2;

Fig. 6 is an enlarged longitudinal section of the main parts of the switch the flash position;

Fig. 7 is a similar view showing the permanent light position;

Fig. 8 is a similar view showing the safety position;

.Figs. 9 and 10 are sections on lines 9-9 showing and 1010, respectively, of Fig. 6; and

Fig. 11 is a detail perspective view of the member with which the push button is adapted to make contact. a

I have shown my improvements applied to a tubular hand lam of the miners type, having a casing of bre or like insulating materlal, containing the usual dr'v cells21. At the rear end of the casing the same is provided with the customary threaded ferrule 22, onto which screws the ordinary end cap 23, carr ing a spring 24.- that presses against the bottom oi. the rear cell. The cells, of which there arb two in the embodiment illustrated, are encased in the customary paper insulating wrapper. At the front end the casing is furnished with a metal ferrule held in place by a plurality of rivets 25 passing through the fibrous casing; and on the ferrule 25 is screwed a lens shell 26, onto which, in turn, the lens holder 27 is screwed. The lens holder supports the lens 28 and between the lens and the front end of the casing is a reflector 29 having a metal socket 30 at its inner part for the reception of the lamp bulb 31. t its periphery the reflector 29 is suitably insulated from the lens shell and lens holder. The bulb 31 is located in the socket 30 in the usual manner and makes contact in the ordinary way with the central electrode of the front battery cell.

Located on the exterior of the fibre casing about midway of the length thereof is a metal switch structure 33, by which the circuit containing the lamp and dry cells is adapted to be closed. This switch structure includes a sheet metal base plate or member 34, which serves as a guide for a combined slide and push button structure, as herein after described. The base plate is electrically connected in a suitable manner, as by means of a brass conductor strip 35, with the uncovered bottom portion of the rear cell. Preferably the connection is from the cell to the sprin 24 and thence to'the end cap 23 and terru e 22, to which the conductor 35 may be riveted, as shown in Fig. 3,

v and the conductor strip the rivet connection being adjacent the rear end of the conductor strip), as shown at 36,

aving at its opposite end a similar rivet connection 37 with the base plate 34. From the central electrode of the front cell the circuit passes throughthe bulb 31 to the socket 30, through. a portion. of the reflector 29, thence through a conductor strip 38 to the movable part of the switch structure 33, as hereinafter described.

The conductor strip 38 is arran ed within and along the side wall or the h re casing and is mounted to slide lengthwise thereof. Near its outer end portion it may be guided by one of the rivets previously men I tioned, which projects through a slot 38", as

dill

shown in Figs. 2 and 3. At its outer end the strip 38 is curved, as shown. at 39, so that the tip or extremity thereof is adapted to contact datwise with the outer surface the reflector at say a point about midway be-= tween the periphery of the reflector and its central axis. When the contact stri is in the position shown in Fig. 2 the same will make edective contact with the reflector when the latter is placed in position in the amp. in doing this the reflector is placed within the lens shell 26, the lens being then applied by means of its holder 27, and the reflector is thereby pressed against the curved end portion of the strip 38 so asto make effective contact therewith. At its inner portion the strip 38 is guided n a guide member 40 (Fig. 11);. located adacent a slot 41 in the fibre casing beneath the base plate 34. The guide member 40 may be conveniently stamped up fromsheet metal and the same has a rim portion 42 extending around the slot 41 at the outside of the casing. The sheet metal blank from which the member 40 is constructed is punched downwardly to provide transverse keeper members 43, 44, at the inner part thereof and a transverse contact member at the outer part thereof. The parts 43, 44 and 45 are in the nature of bridges which extend across-from the rim portion atione slde of the slot in the casing to the rim portion at the other side of the slot, the bud e 45 being intermediatethe bridges 43, 44. en the member .40 has been positioned in the slot 41, the bridge member'45 1s substantially in the plane of the slot, but the members 43, 44 pi'oject inwardly somewhat with reference to the casing so as to form keepers for the end portion of the movable conductor strip 38. These keepers abut the conductor strip at its inner face. as shown in Fig. 6, and .the strip is abutted at its outer face by the inner surface of the casing. In this manner the strip is supports and guided effectively for movement lengthwise of the casing. The strip is ing the slide 47. This slide 47 is of elongated shape and is adapted to slide forwardly and rearwar'dly on the rib 46 to a limited extent. is preterabl constructed of metal with a anne ed cross section. having integral top and side walls,

described in my application Serial lilo. 38?,65'2'. filed June 9, 1229. The side walls of the slide. near the corners of the latter are continued downwardly to form securing guiding lugs or projections 49., which pass. through longitudinal slots 50 in the base plate and are bent laterally beneath the base plate so as to hold the slide in place. A rectangular member 51 is positioned at the under surface of the guide projection 44., and the lugs 49 pass through a central rectangular opening 52 therein at the corners of such opening, and are bent outwardly over the face of said rectangular member. in this manner the member 51 is made a par-tot the i sliding structure whereby a substantial bear ing of the slide on the base plate is afforded.

.At its forward portion the member 51 is bent downwardly, as shown at 53, and the downwardly'bent portion is secured in a suitable manner to the'movable contact strip 38. in the particular form shown, the portion 53 is secured tothe strip 38 by means of "an insulating rast'ner. 54. The connection between the slide and the contactstrip. is preferably somewhat in front of the keeper member 44.

' At; the central part of the base plate 34 beneath the slide 47, said plate is provided with a slot 55 directed lengthwise of the guide rib 46.' The slot 55 is adapted to (:0-

operate with the inner end portion of the 1 push button 48 carried by the slide 47. The

push button is located within a cylindrical socket 56 in the slide 47 at the central part thereof, said socket being formed by punching in the outer wall of the slide. The

substantially inthe plane of the guide rib socket has a bottom wall 57 with a perforation therein in'which the shank 58 of button a 46. The inner end 58 of the button carries an enlarged portion or flange 60 that limits the outer movement of the button by making v to co-operate with the fixed contact member constituted by the transverse bridge piece, 45 of guide member 40. When the parts are in the flash position shown in Fig. 6, the

, collar 60 is located within the central portion 61 of the slot 55, which central portion 61 is rounded out and of such size as to permit the button shank to be moved freely in an inward and outward direction relatively to the fixed contact member 45. lVhen the button is pushed inward, the inner end thereof makes contact with member 45, which is in electrical connection with the conductor strip 38 by virtue of the sliding flt of the conductor strip in member .40, and thus the circuit is closed. When the push button is released, the spring carries it back to the initial circuit. r

Suppose, now, that it is desired to keep the lamp lighted for several minutes withposition and thus breaks the .out using the, hand for that purpose, it is' merely necessary for the operator to depress the button 48 so that the projection 60 will i pass inwardly beyond the plane of the slot 55 (in which the said projection normally stands), whereupon a forward pushing impulse is given to the button, and thereby to the slide, to carry the parts to the position showii in Fig. 7. In this position, the inner endof the button shank is against the contact strip and is wedged in between the latter and the under surface of the base.

plate in the narrow front end portion of the slot 55. The contact is maintained because the enlargement 60 on the button shank is locked at the under surface of the base plate. This is the position for ,per-

manent lighting, and it will be observed'that the parts cannot be shifted into this position from the flash position without adepression of the button preliminary to a forward sliding movement. As the button and slide go forward, the'movable contactstrip 38 goes forward also, owing to the connection between the strip and the slide member 51. The forward extremity of the conductor strip is shifted somewhatrelativcly to the reflector 29, but the contact of the strip with the reflector is nevertheless main gained, as indicated by the dottedlines in vWhen it is desired to place the parts in the safety position, from the flash position shown in F ig. 6, the button is depressed and moved rearwardly of the casing. This carries the movable contact strip 38 rearwardly,

thus moving the forward end thereof out of contact with the reflector and thus breaking the circuit. U 11 release of the push but ton after the side 47 has been moved rearwa-rdly-as far as possible, the member 60 moves outwardly again within a rounded portion 62 at the rear end of the slot 55.

these projections prevent a forward movement of the button and slide, necessary for carrying the .parts back to the flash position, without a preliminary depression of the push button for the purpose of disengaging member 60 from the projections 63. It will be observed that in the safety position shown in Fig. 8, the push button is moved rearwardly to such an extent that it cannot make contact withthe fixed contact member 45, even if said button is depressed. Hence the circuit is interrupted at this point as well as in the locality of the reflector. In, this manner, any pos'ibility'of lighting the lamp accidentally when the parts are in the safety position is practically overcome.

It will be understood from the foregoing description that my invention provides a simple, eflicient and easily assembled device, in which the shifting of the movable switch parts from the flash position to the permanent light position or to the safety posi-' tion cannot be effected without a preliminary depression of the push button, and the tact with the reflecton and provides means whereby in the safety position the circuit may be interrupted at more than onepoint for insuring against accidental lighting.

wvhich, in the safety position, is out of 0011'- Various changes may be made in the de-- tails of the device as herein particularly de-' scribed without departing from the scope of the invention. as set forthin the claims.

What I claim is:

1.'In a hand lamp, a casing, a battery therein, a bulb, a reflector in circuit with the bulb, a contact device on the casing permanently in electrical connection with the battery, a slide member mounted on said connected adjacent its other end with said slidev member so as to be movable therewith.

tact device, a depresible circuit controlling,

2. In a hand lamp, an insulating casing, I

a battery therein, a bulb, and connections between -the bulband battery comprising a circuit controlling push button and slide structure mounted on the housing, and a lon ltudinally movable conductor strip wihin the casing permanently connected with said combined push button and slide structure so as to be movable therewith,

4. ln'a hand lamp, a casing, an electric battery therein, a bulb, connections between the bulb and battery comprising a longitudinally movable conductor stri ,and a combined circuit controlling pus button and slide structure directly and permanently connected with said conductor strip for shifting the same. v 5. ln a hand lamp, a casing, an electric battery therein, a bulb, connections between the bulb and battery comprising a longitudinally movable conductor strip, and a combined circuit controllin push button and slide structure for shi ting said strip havin an insulated connection therewith.

1' 6.' n a hand lamp, a movable conductor 0 strip and a combined'push button and slide structure insulated from but directly con nected'with the conductor-strip for shifting Ri the same, Y

p ,7; Inn than lamp, battery, abulb, and --.'-means to establish acircuit including said bulb and batteryfcomprising a longitudinally'movableconductor, strip, a combined push [buttonandslide structure, a fixed contact j with which the push button co-operates, and

afdirfict but insulated connection between the if slide structure and conductor strip,

'8. In ahand lamp, a casing, anelectric battery therein, 'a bulb connectionsbetween the bulb and battery comprising a longitudinally: movable conductor strip, a combined 5 'push button and slide structure mounted on the casing, a fixed contactwith which the I push button part of said combined push but- -;ton: and slide structure cooperates, and means for'connectingsaid strip'directlywith said'oombined push button and "slide struc- I "ture'is'o that it is shiftable bat e latte Z 9:] In ahand lamp; ale-using, an ele tric.

, tter therein,1 afbulljgfconnections' betwecn a habu b and battery comprising Y 9 titre mounted on the a ongitudinally "movable conductor strip mnnect ed sociated with the slide structure, and means for preventing movement-of theslide except after an inward thrust on the push button.

a slide struc' e the slide structure,,'a push button as;

int/neon l0. lln a hand lamp, a casing, an electric and battery comprising a longitudinally movable conductor strip, a slide structure mounted on the casing, a connection between the strip and slide structure whereby the former is shifted by the latter, a push button associated with the slide structure, a fixed contact member with which the push button co-operates,and means for prevent ingi movement-of the slide except alter an inward thrust on the button.

11. In a hand lamp, a casing, an electric battery therein, a bulb, connections between tudinally movable conductor strip, a slide structure mounte'd on the casing, a connection between the strip and slide structure whereby the former is shifted byth'e latter, a push button associated with the slide structure, a fixed contact member with which the push button co-operates to, complete the lamp circuit, and means for preventing 1 movement of the slide except after an inward thrust onthe button, said fixed contact member being in permanent electrical connection with said movable conductor strip.

12. In a hand lamp, a casing, an electric battery therein, a bulb, connections between the bulb and battery, comprising a longitudinally movable conductor strip, a slide struoture'rnounted onlthe casing, a connection between the strip and slide structure whereby the formeris shifted by the latter, 1 Bl, push button associated with the slidestructure, a fixed contact member with which the push; button co-operates to complete the lamp'fcircuit, and means for reventing movement or the slide except a ter an mward thrust on the button, said fixed contact member being in permanent electrical connection with said movable conductor strip, and said strip being insulated from sai slide structure. 1

- 13. In a hand lamp, an insulating casing, a battery therein, a bulb, and means for conmeeting the battery and bulb, including a conductor strip within the casing, a slide structure on the exterior 'of the casing per-i mancntly'conneoted with said strip, a depressible button associated with the slide structure, a fixed'contact member electr1-- cally connected the slide with which the button makes oontact when depressed, and

means for lockingthc slide-structure against "movement, controlled re P h .314. In a hand lamp, an insulating casing, an electric batteryt'herein, a bulb, and connections between the bulb and battery, in-

eluding abase plate on the casing, a slide on the base plate, a conductor strip beneath the base. plate directly connected with the 3 slide. a keeper member for lruidin'n the con- -battery therein, a bulb, means for establish: 'ing an electrical connection between the bulb 80 the bulb and battery comprising a longiductor strip, and a button associated with theslide adapted to be electrically connected to said keeper member.

15. In a hand lamp, a casing, an electric battery therein, a'bulb in said casing, and connections between the bulb and battery, including a keeper member associated with the casing wall, a contact strip guided in said keeper member, a slide connected with but insulated'from said contact strip, and

a contact device on the slide co-operating with said keeper member in closing and openin the circuit.

16. a hand lamp, an insulating casing having a slot therein, a keeper member positioned in said slot, a conductor strip guided lengthwise in the keeper member, a plate overlyingthe keeper member and fixed to the casing and an operating device for the conductor strip mounted on said plate and having a contact device co-operating with said keeper member for making and breaking the circuit.

17. In a hand lamp, a casing, a battery therein a bulb, and means for establishing a circuit through said battery and bulb, including a movable conductor element, a. switch for completing or interrupting the circuit through said element, and a slide to move said element and permanently connected thereto, but insulated therefrom.

18. In a hand lamp, a casing, a battery therein, a bulb, and means for establishing a circuit through said battery and bulb, including a movable conductor element, a depressible push button to establish and interrupt a circuitthrough said element, and a slide having a permanent connection with said element by which the latter may be moved.

19. In a hand lamp,1 a casing, a battery therein, a bulb, and means for establishing a circuit through the bulb and battery, including a movable conductor elementwithin the casing, a slide without the casin and permanently connected to the con uctor element to move the latter, but insulated therefrom, and means for establishing and interthereinfa bulb, and means for establishing a circuit throu ing a mova le conductor element within rupting the circuit through said slide and conductor element.

20. In a hand lamp, a casing, a battery therein, a bulb, and means for establishing a circuit through the bulb and battery, including a movable conductor element within the casing, a slide without the casing and permanently connected to the conductor element to move the latter, and means upon said slide for establishing and interrupting the circuit through said conductor element.

21. In a hand lamp, a casing, a battery the .bulb and battery, includthe casing movable tooperative and inop erative positions, a slide for moving said element and permanently connected thereto, and means upon the exterior of the casing for momentarily passing the current through said conta'ctmember when in it's operative position.

22. In a hand lamp, a casing, a battery therein, a bulb, a reflector in circuit :with

the bulb, a contact device ontlie casing permanently in electrical connection with the battery, a slide member mounted on said contact device, a depressibl'e circuit controlling push button carried by said slide I member, and a movable conductor strip having one end portion adapted to enga and dsengage' the reflector and permanent y connccted adjacent its other end with said slide member so as to be movable therewith,.but-

normally insulated therefrom.

23. In ahand lamp, a casing, a battery therein, a bulb, means for establishing a circuit through the bulb and battery includinga conductor stri movable lengthwise of the casing, a manual ly connected to said strip and by means of which it may be shifted, and movable means accessible at the outer part of the slide for controlling the sliding movement thereof.

24. In a hand lamp, a casing, a battery therein, a bulb, means for establishing a cirand a locking button carried by the slideand cooperating with a fixed part of the lamp structure.

26. In a. hand lamp, a casing, a battery therein, a bulb, electrical connections including a movable conductor strip within the 1y operable slide permanent-- casing, a slide without the casing permanently connected to said strip to move the same, and a spring pressed locking member carried by the slide and cooperating with a fixed part of the lamp structure.

27. In a hand lamp, a casing, a batter therein, a bulb, electrical connections inclu Ill ing a movable conductor strip-within the casingf a slide without the casing. ermanently connected to said strip to move t e same, and

common means carried by said slide to close -the circuit through the contact strip and to lock the slide in. a predetermined position. 28. In a hand lamp, a casing, a battey therein, a bulb, electrical connections inclu ing a movable conductor strip within the easing, e slitle without the casing ermenently connected to said strip to shift t e same 1011- v gitudinelly or the lamp structure, and means including a. clepressible member on the sliole for locking the latter in either of two (listinct positions longitudinally of the lamp structure.

29. ln at hand lump, :1 casing, e battery therein, e hello, and electrical connections including e move-hie conductor strip Within the caslng, it slide Without the caslng to move "the conductor strip and connectecl in fixed relation thereto, and means movaloly mounted memos I e light flashing device carried by able With seidjactuetor.

31.1nn hand lamp, a casing, a battery therein, a hullo, and electrical connections including e movable circuit closing conductor strip guicletl on the interior or" the casing, an actuator for sairlgstrip permanently connected thereto and accessible for manual onerntion, a light flashing device eccessi' le at the exterior of the casing "for manual operation.

32.. In a hen-cl lamp, e casing,ia battery therein, a hello, fentl electrical connections including a niovnhle circuit closing conrlucand movtor strip guiclerl on the casing, an actuator for seitl strr permanently connected thereto and eccessihi for manual operation and e coinloinee light flash ng and loclnng device associated with sod actuator. 1

In Witness whereof, I have hereunto set 7 in hand on the 17th (lav ofJune, 1920. U y r. ARTHUR P, PAINE.

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