US1707431A - Battery hand lamp - Google Patents

Description

J. T. DRuFvA BATTERY HAND LAMP April 2,' 1929.

Filed April 5. 1922 Patented Apr. 2, 1929. I

UNITED sTATEs .PATENT voFFIxc: E..

JOHN 'r. nnorvn, 01s' LoivGMEAnow, massacnnsnrrsgassienon, BY MEsN'E Assic-N- m'rsmo HENBFY' HY'MANN; or NEW YORK, N. Y.

- BATTERY HARD Ii-AMP.

Application file'dbpril' 5, 1822. i S'el'i'al`` No; 549,808.

This invention relates to battery hand lamps. I One of the' objects'ofF this invention is to provide a battery handI lamp in which the l designates the casing whichmay'be' either of metal or offibre or other suitablematerial.

A metal casing is shown in thedrawing and. the 'following description will conforrn 'thereto. A casing of any othermaterialmay be employed with obvious modifications- The front endof the casing'is form'ed with a screw thread adapted to'engage the threaded end-2 of aring 3 adapted-to support the r'eflector 4 by the engagement of a flange 5 on the rimofv the re'fiector with the'upzper rim of the ring 3. The upper portion ofV the ring 3' is threadedto'receive a ring 6 adapted to retain a lens or other transparent closur'e 7 in position covering the reflector. The ring 6 binds the closure 7 against the rim of the reflector 4 so as to secure these parts in place.

Mounted within the forward end of the casing and resting against a shoulder 8 thereon is a metal ring 9 having an inwardly directed flange 10 adapted to support an insulating sleeve 11. Mounted in the insulating sleeve 11 is a tubular guide 12 having an inwaridly directed flange 13 at its lower end and being formed at its upper end to provide an inwardly directed flange 14 and an outwardly directed flange 15, the flange 15 resting upon the upper rim of the sleeve 11 so as to position the guide 12 in the casing.

Mounted to slide within the guide 12 is a lamp base, support or holder 16 having an upturned flange or rim 17 adapted to engage the inner surface of the guide 12 for sliding movement therein. The base 16 also has mounted thereona nipple 18 into whichthe lamp bulb 19'may lbe screwed. Also mounted on the base 16 is Va downwardlyv extending tube 20 having at its lower end an insulating ring 21 supporting a metallic abutment 22 adapted to lengage the battery terminal. The.

abutment 22isv provided with an upwardly extending'tubular portion 23 having'an inturned fiange 24 and confining an inverted cup-shaped-terminal 25 having an outturned fange'26 adapted to engage the flange 24 to limit the upward move'ment of the terminal. The spring 27 is confined between the termiterminal 25 upwardly to make contact with the center contact ofthe lamp 19. There is thus established a yielding electrical connection .between the battery and the lamp na] 25 and'the abutment'22 so as to urge the through't'he'abutment 22, the spring 27 and the, terminal 25. p' I w Mounted in the upper end of the guide 12 and retained Vthere'in 'by the flange 14 is a metallic'ring 28 adapted to receive'the'upper end ofza'coil-sp'ring 29, the loweren'd of which bears 'against the lamp base 16 to urge the same in a downward direction along the casing An insulating washerv 30 rests on the upper sidel of` the flange 15 and bears against an in-turne'd shoulder 31' on the ring 3 so that .when the ring 3 is screwed into place .after thel sleeve 11 with its guide 12 and as- .sembledpa'rts have been inserted, the shoulder 31 will retain these parts in place. The vguide 12 and, therefore, the lamp base 16 are insulated from all casing parts by the sleeve 11 and the washer 30. A conductor or connecting strip 32 passes between the sleeve 11 and the guide 12 so as to make Vcontact with said guide and connect the same with one terminal of a switch 33 mounted on the casing in the usual manner.

The lower or rear end of the casing is pro- Vided with an end cap 34 Screwed on in the usual manner. Mounte-d within this end cap is a cup 35 adapted to receive a bunter or abutment 36. The bunter 36 has a bearing at the bottom of the cup 35 so as to provide a rigid abutment against which the battery 37 may rest. The bunter 36 further provides with the cup 35 an enclosed space 30 forming a casing within which a lamp receptacle 39 may be mounted to receive an extra lamp 40.

In the completely assembled hand lamp, the battery 37 rests upon the bunter 36 and the abutment 22 bears against the upper terminal thereof under lthe pressure of the spring 29,

a the lamp base 16 adj-Listing itself to the positie-n of the battery by sliding` along the guide 1.2 against the tension of the spring 29. The reflector 4 is open at its lower end to provide a passage therethrough for the lamp l9iand the nipple 18. It Will be evident that by adjusting the position of the battery 37 and by screwing up or down on the end cap 34, the

lamp base 16 maybe moved up or down in the' guide 12 and against the tension of the spring 29 and thereby the relative position of the lamp 19 with respect to the retiector l may be varied and aljnsted. Asthe reflector 4 is usually of parabolic or other shape capable of focusing a beam of light, this Variation in the position of the lamp Will result in a variation of the spread of the beam of light thrown forward by the reflector 4.

It is obvious that various changes may be made in details of construction without departing from the spirit of this invention; it is, therefore, to be understood that this invention is not to be limited to the specific details shown and described.

Having thus described the invention, What is claimed is:

1. In a battery hand lamp having a casing and a battery therein, a reflector at one end of the casing, the casing having a guide therein extending circumferentially therearound, a lamp base having a part engaging said guide for movement therealong, and means for moving said base relatively to said refiector.

2- n a battery hand lamp having a casing and a battery therein, a refiector at one endof the casing, the easing having a guide therein extending circumferentially therearound, a lamp base having a part engaging said guide for movement therealong, a spring cooperating With said base, and means for moving said base against the tension of said spring.

3. A battery hand lamp comprising, a metallic battery receiving casing, an insu- Mor/,481

lated guide fitting the lamp end of said casing, a support mounted to slide in said guide, a spring in said guide and engaging said support, a lamp in said support, and means for moving said support along said guide.

4. A battery hand lamp comprising, a

metallicbattery receiving casing, an insulated guide fitting the lamp end of said casing,'a support having a rim mounted to slide in said guide, and a lamp in said support.

5. A battery hand lamp comprising, a battery receiving casing, an insulating sleeve fitting the lamp end of said casing, a support guided to slide Within said sleeve, a connecting strip between said sleeve and said support and in electrical connection With the latter to connect the same in the lamp circuit, and a lamp in said support. o

6. A battery hand lamp comprising, a metallic battery receiving casing, an insulatinO' sleeve fitting the lamp end of said casing, a support guided to slide Within said sleeve,

-- a lamp in said support, and a thrust receiving device on said support Vadapted to contact With said lamp and the battery.`

7. In a battery hand lamp having a casing and a battery therein, a reflector at one end of the casing, a support-ing ring for said refiector, a guide in the casing and retained by said ring, a lamp base in said guide and movvable therealong, and means for moving said base and said reflector relatively.

8- In a battery hand lamp having a casing and a battery therein, a refiector at one 'end of the casing, a guide in the casing and adj acent said rcflector, a lamp base in said guideand movable therealong, means for insulating said guide from the casing, and means operable from. outside the casing for moving Said base relatively to said reflector.

In testimony Whereof I afliX my signature this 21 day of Feb., 1922.

JOHN T. DRUFVA.

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