US1922801A

US1922801A - Battery hand lamp

Info

Publication number: US1922801A
Application number: US467568A
Authority: US
Inventors: Charles A Gillingham
Original assignee: Nat Carbon Co Inc
Current assignee: National Carbon Co Inc
Priority date: 1930-07-12
Filing date: 1930-07-12
Publication date: 1933-08-15
Anticipated expiration: 1950-08-15

Description

Aug. 15, 1933 c. A. GILLINGHAM BATTERY HAND LAMP VFiled July 12,

/o ze 7 24 NTO rTTORNFYS,

Patented Aug. 15, 1933 1,922,801

y UNITEDsTAT-ES PATENT OFFICE y BATTERY HAND LAMP charles A. Gillingham, Lakewood, ohio,l assignor to National Carbon Company, Inc., a Y Corporation of MNew York Application July 12, 1930. Serial lNo. y.467,568

A s-ciaims; (ci. 24o-10.65)

My invention relatesto aunitary batteryhand electrode 2 is connected to one of the positive lamp having a'non-rellable casing. electrodes 3 at the bottom of the battery by Lamps of this type that have been made an electrical conductingY strip 6 which passes heretofore havebeen so constructed that some across thebottorn endof the battery.

of the parts could be renewed by the user. An electric light bulb 7 fits into the recess 60 Such replaceable elements have involved de- 5 atthe top of the battery. The central termitails of construction that have tended to innal 8 of the bulb 7 is connected to the positive crease the cost of manufacture or the weight, terminal 9 'of the battery by `a Z shaped elecsize and attractiveness of the lamp. trical conductor 10 having onerend connected 10 One of the objects of my invention is to make to the positive terminal 3 ofv the cell at the e5 a lamp of simple construction'at a relatively low top of the battery and 'having the other end cost. extending into the recess 5 and forming a con- Another object of my invention is to make tactwith the central bulb 'terminal 8. The Z a small attractive lamp which is serviceable shaped *conductor 10 is insulated from the cells and may be conveniently carried and operated. and the electric-light vbulb 7 by an insulating 70 Another object of myinvention is to construct strip 11, the development of which is shown a battery hand lamp at suchI a low cost that it in Fig.` 5. The strip 11 is bent on the dotted can bereconomically discarded after the batlines 12 indicated-in Fig; V inorder that it `may tery has been discharged.` v extend underneath the Zshaped conductor and `Another object of my invention" is to construct pass down oh one side'of therecess 5 across the 75 a battery hand lamphaving all of 'its parts bottom and upwardly-along `the Vother side of permanently secured in place and enclosed in a vthe recess. A flap 13 is provided on the insulatnon-rellable casing. ing strip 11 which is folded on the dotted line The above and other objects of my invention 14' in Fig. V so thatI it may Vextend over the Z will be more clearly understood from the followshapedconductor 10',`for the purpose of insulat- 80 ing description anduaccompanying drawing; in ing the outside terminal 1510i the electric light which, 1 v bulb 7from the conductorl'. The battery Fig. I isavertical section ofthe battery hand circuit may be completed-throughl the` electric lamp showing'the interior of thelamp in elevalight bulb 'l by a leaf spring switch 16 which tion. g has one endconnected to the negative terminal 85 Figs. II and III, respectively, are top and bot- 17 of the battery and hastheother end positom plan views of the battery hand lamp. tioned adjacent to butv out of contact with the Fig. IV is a top View 0f the ,lamp With the OD outside terminal 15 of the electric light bulb.

cover removed. 4 In order to securely bind the cells 1 together FgfV iS a develOlJmeDt 0f im insulating strip and. to form a good electrical `connection be- 90 used in the head Of the lamptween the unlike poles ofi the' fcells it is4 de- TOlluStrate my invention, I have Shown a sirable to solder the'points of contacts between battery comprising a pair Of dry Cells l arranged the conductors 6, 10 and 16 and the electrodes in parallel relation to each other. The

cells

2 and 3. It is also desirable to solder the cen- 40 shown herein are the round type cell having trai terminal 8 of the electric light bulb '7 to 5 a negative cup electrode 2 and a positive rod the Z shaped conductor 10.

electrode 3 projecting from .the top of the A flexible cover 18 preferably of insulating cup 2. The cells are separated by a short spacer material comprising a thick inner layer 19 of ma- 4 which is interposed between the two cells terial and a thinner outer layer 20 of material is and forms in combination therewith a recess 5 at wound around the battery assembly and the 100 the top of the battery. `Preferably, this spacer edges of the cover are cemented together alongT 4 is made of wood or other insulating maa vertical seam 20a. A piece of cardboard 21 terial but the cells may be insulated from each or other piece of stili sheet material having the other by providing at least one of the cells shape of the bottom contour of the battery is with an insulative tubular covering such as is placed over the bottom of the battery. The o" commonly employed to cover unit cells of this bottom edge of the thinner layer 20 of covering type. The ends of the cells are reversed with material projects beyond the bottom of the batrespect to each other which places the positery and it is folded over the bottom cardboard tive electrode 3 of each cell at theA opposite 21 and the edges of the folds 22 are cemented end of the battery. The bottom of the cup together.

A stiff top cover 23 of insulating material is placed over the top of the battery and it is provided with an aperture 24, the inner edges of which rest against the top of the electric light bulb 7. The edges of the top cover 23 are cemented to the top end of the flexible cover 18 and a strip'2'5 having an aperture 26 therein is cemented over the top cover and to the sides of the flexible cover so that the aperture 26 in vthe strip coincides with the aperture 24 in thetop cover.

The battery may be operated by pressing the flexible cover 18 at the top of the spacer 4 immediately over the end of `the leaf spring switch 16 at the point indicated vby the arrow. This point may be visually indicated by suitable lettering and it may be detected by the touch, by forming a rise or a depression at thisv point. The switch is actuated to formv a contact between the outer terminal 15 of the electric light bulb and the negative terminal 17 ofthe battery to complete the battery circuit and the light is projected through the aperture provide in the top cover of the battery.

I claim:

.1. A battery hand lamp comprising a dry battery formed of a pair of dry cells having their unlike electrode terminals disposed at theopposite ends of said battery; a short spacer separating said cells and providinga space at one end of said batteries betweensaid cells; an electric light bulb in said space and having one'of its terminals electrically connected to-one .terminal of said battery; a switch electrically connected to the other terminal ofsaid battery and adapted to be actuated to form alcontact with the other terminal of said bulb; anday casing enclosing all of said elements, said casing comprising a flexible side adapted to bepressed-to actuate said switch.

2. A battery handlamp comprising adry battery formed of a pair ,of parallel dry cells having their unlike electrode terminals kdisposed at opposite ends of said battery; an electrical connection between the unlike terminals at one end of saidv battery; a short spacer separating said cells and providing a recess between lsaid cells at theother end of said battery; a z shaped electrical conductor havingone end connectedto one terminal of said battery'and the other endterminating in said recess; an, electric light bulbv positioned in said recess and having one of ,its terminals' in contact with said Z conductor; an insulating strip extending along the bottom and side walls of said recess and interposed between said conductor and the exterior walls of said cell; a switch connected to the other terminal of said battery and adapted to form a contact with the other terminal of said bulb; and a exible casing for the battery sides and an end cover having an aperture therein against the inner edge of which the outer end of said bulb abuts.

3. A battery hand lamp comprising a dry battery formed of a pair of parallel dry cells having their unlike electrode terminals disposed at opposite ends of said battery; an electrical connection between the unlike terminals at one end -of said battery; a short spacer separating said cells and providing a recess between said cells at the other end of said battery; a Z shaped electrical conductor having one end connected to one terminal of said battery and the other end terminating in said recess; an electric light bulb positioned in said recess and having one of its terminals in contact with said Z conductor; a switch connected to the other terminal of said battery and adapted to form a contact with the other terminal of said bulb; and a flexible casing for the battery sides and an end cover having an aperture therein against the inner edge of which the outer end of said bulb abut's.

4. A battery hand lamp comprising a dry battery; an electric light bulb adapted to be placed in circuit with said battery; a switch for completing said circuit, and a non-removable casing enclosing all of said elements comprising a stiff top end cover having a hole therein, one edge ofwhich ts against said bulb, a' bottom end cover, and a flexible side cover wrapped around said battery and secured to said end covers, said side cover being adapted to be flexed to actuate said switch.

5. A battery hand lamp comprising a battery of dry cells; anl electric light bulb having one of its terminals connected to one of the battery terminals; a switch connected to the other battery terminal; a casing having end icoversI and a flexible side.`cover wrapped around said battery and secured to said end covers, and said side cover being adapted to be pressed to vmove said switch in contact'with the other terminal of said bulb. l 6. A battery hand lamp comprising a battery of dry cells having their/axles parallel to each other; a spacer separating said cells; an electric light bulb supported ony said spacer and protected by the ends of said cells; a conductor connected to one terminal of said battery and to one terminal of said bulb; a switch connected to the other terminal of l said battery; :a casing enclosing all of said elements,v said .casing having a flexible side cover wrapped around said battery and adapted to be pressed to actuate said switch.

CHARLES A. GILLINGHAM.