US1445193A

US1445193A - Battery hand lamp

Info

Publication number: US1445193A
Application number: US390509A
Authority: US
Inventors: Alschuler Ernest
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-06-21
Filing date: 1920-06-21
Publication date: 1923-02-13
Anticipated expiration: 1940-02-13

Description

Feb. 13, 1923.

. 1,445,193 E.ALSCHULER. M

BATTERY HAND LAMP.

FILED JUNEZI, 1920.

Patented Feb. 13, 19213.

Kiwi-TED STATES FATENT ERNEST ALSCHULER,

OF NEW YORK, N. Y.

BATTERY HAND LAMP.

Application filed June 21,

T 0 all whom it may concern Be it known that I, ERNEST ALsoHULER, a citizen of the United States, and residing at New York, New York, have invented the new and useful Improvement in Battery Hand Lamps, of which the following is a specification.

This .invention relates to battery hand lamps such as may be lighted by the manual operation of the switch on the casing, while thelamp is held in the hand.

In many types of construction such a lamp is provided with a casing of insulating material provided with metal fittings which may be included in the lamp circuit. Such lamps are also usually "provided with a switch on the casing which may be closed by the operation of a push button or other moving part on the exterior thereof. Such lamps are subject to the disadvantage that when they are carried in a tool box or similar receptacle along with a number of other articles, the lamp circuit is liable to be closed accidentally either by operation of the switch or by establishing metallic contact between the various fittings and consequently the battery is liable to be exhausted unnecessarily.

One of the obj ects of this invention, therefore, is to provide a lamp construction which will insure against the accidental discharge of the battery.

In such constructions it is usually necessary to insulate some of the metallic fittings, and for this purpose the fitting on the upper or reflector endmay be insulated.

Another object of this invention, therefore, is to provide novel means for insulating the lamp circuit, particularly at the reflector end of the casing.

Another object is to provide a lamp construction which is simple and cheap to manufacture and reliable-in operation.

Further objects will appear from the detailed description taken in connection with the accompanying drawings, in which:

Figure 1 is a sectional view of a hand lamp embodying this invention;

Figure 2 is an enlarged sectional detail of the insulating support forthe reflector;

Figure 3 is an enlarged sectional detail of the end cap construction; and,

Figure 4 is a sectional view of the lower end of the lamp showing the end cap partly unscrewed, so as to break the lamp-circuit.

Referring now to the accompanying 1920. Serial N0. 390,509.

drawing, 1 designates the casing, which in th1s case 1s shown as of lnsulatingmaterial containing a battery 2, one of whose termi- The upper end of the reflector 4- lating ring 10. The insulating ring 10 is adapted to engage the reflector 4 at an intermediate portion thereof so as to support it and center it in the casing. The upper end of the reflector 4, where it bears against the lens 5 is of less diameter than the ring 7, so as to be separated therefrom for insulating purposes. The housing 6 is screwed on to the sleeve 11 on the upper end of the casing in the usual manner.

A switch 12 which may be such as has been described and illustrated in Patent No. 1287262, December 10, 1918, is mounted on the casing. A conductor 13 connects the switch 12 with the reflector 4. This conductor passes upwardly on the inside of the casing, to which it may be attached by a rivet 14 at the upper end, and extends beyond the upper end of the casing 1 a sufficient distance so that when the housing 6 is screwed in place on the sleeve 11, the conductor '13 will pass up inside of the insulating ring 10 to make contact with the reflector 4. The head of the rivet 14 may be counter sunk in the casing 1, so as to avoid contact with the sleeve 11. a

It will be seen that as the housing 6 is screwed down upon the sleeve 11 the conductor 13 will be forced upwardly between the reflector 4 and the insulating ring 10 and will, therefore, be sustained in good contact with the reflector by the ring 10. It will also be seen that the outside metallic fittings 6, 7 and 11 are entirely insulated from the circuit.

From the switch 12 a conductor 15 passes downwardly to the end of the casing where it is turned over, so as to contact with, and being held by the flange 16 on the lower screw sleeve or fitting 17.

The usual metallic end cap 18 may be provided to be screwed on to the sleeve 17 \Vithin the cap 18, but insulated therefrom by means of the flanged insulating washer which may flange 21 will contact with the flange 16; thereby completing the circuit from the battery to the switch 12.

It will be seen that since the lamp circuit is completed through the contact between the

flanges

16 and 21, said circuit may be opened by unscrewing the cap 18, so as to separate those flanges. It will also be seen that with these flanges so separated, it will be impossible to light the lamp by manipulation of the switch 12 or by any accidental contact which may establish an external circuit between any of the outsidemetal fittings.

It is further evident that the reflector 4, being clamped between the lens 5 and the ring 10, is completely supported in the housing 6, and that when said housing is unscrewed from the sleeve '11 the circuit between the reflector and the strip 13 will be broken, thereby rendering it impossible to light the lamp by manipulation of the switch 12, or by establishing a circuit between the end fittings.

It will be seen, therefore, that this invention accomplishes its objects in providing a lamp structure wherein the external metal fittings may be so insulated as to make it impossible to close the battery circuit by establishing metallic contact therebetween. It will also be noted that this is accomplished by providing novel means for insulating and supporting the reflector in the casing and by novel means of establishing a circuit therewith all insulated from the external fittings. It will further be noted that by means of the circuit opening device, in the end cap, the establishment of any accidental circuit exhaust the battery is rendered impossible;

It is obvious that various changes may be made in the details of construction, within the scope of the appended claims, without departingv 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 this invention, what is claimed is: v

1. In a battery hand lamp having a battery receiving casing provided with a movable cap, a lamp in the casing, a spring in the casing adapted-to support and contact with the battery, and a circuit-closing switch on the casing adapted to normally connect the lamp with the battery through the spring, a fixed conductor extending along the casing and connected with the switch and a spring retainer mounted in but insulatedfrom the cap and having a circumferential flange taking over and retaining said spring and making connection with said switch through said conductor.

2.. In a battery hand lamp having a battery receiving casing. provided with a movable cap, a lamp in the casing, a spring in the casing adapted to support and contact.

with the'batt ery, and a circuit-closing switch on the casing adapted to normally connect the lamp with the battery through the spring, a metal rim on the casing and connected with the. switch, and a spring retainer mounted in but insulated from the.

cap and having a circumferential flange tak- 7 tween its rim and its nipple.

4. In a battery hand lamp having a battery receiving casing provided with a metal part, a metal reflector in the lamp circuit and a lens against which the reflector bears, a metal support secured to said casing part, an insulating member seated in said support and providing a seat for the reflector between its rim and its nipple, and a conductor within'said insulating member adapted to contact with the reflector. Y

5. In a battery hand lamp having a bat tery receiving .casing provided with a metal part, a lamp in the casing, a reflector in the lamp circuit, a movable cap on the casing, a

spring adapted to support and contact with the battery, and a circuit-closing switch adapted to normally connect the lamp with the battery through the reflector and the spring, a metal support on the casing. part, an insulating member on the support in which the reflector is adapted to seat, and a spring retainer having a rim adapted to re-' ceive and retain a coil ofthe spring mounted in but insulated from the cap, said rim being adapted to 'form a contact for connection with the switch.

6. Abattery hand lamp, comprising, a battery receiving casing provided with an exterior end-fitting in the lamp circuit, an end cap mounted on. said fitting, and an element mounted in but insulated from said cap connected with the battery and adapted to contact with said fitting.

7. A battery hand lamp, comprising, a battery receiving casing provided with an exterior end fitting in the lamp circuit, an end cap mounted on said fitting, an element mounted in but insulated from said cap, and a spring carried by said element and engaging the battery, said element being adapted battery receiving casing provided with an exterior end fitting in the lamp circuit, an end cap mounted on said fitting, an element mounted in but insulated from said cap and connected with the battery, and a flange on said fitting adapted to contact with said element.

9. A battery hand lamp, comprising, a battery receiving casing provided with an exterior end fitting in the lamp circuit, an end cap mounted on said fitting, an element mounted in but insulated from said cap, a spring carried by said element and engaging the battery, and a flange on said fitting adapted to contactwith said element.

10. In a battery ha'nd lamp having a battery-receiving casing provided with a movable cap, a lamp in the casing, a spring in i connected with. the switch, means in said cap I adapted to connect said rim with said spring, and means adapted upon moving said cap to disconnect said rim.

In testimony whereof I affix my signature this 31st day of March, 1920. 1

ERNEST ALSCHULER.