US1472750A - Burglar alarm - Google Patents

Description

Oct. 30, 1923.`

l J. F. GoRMAN ET AL BURGLAR ALARM Filed nec. 1s. 1921 S /6 h /4 f5 /7 Z735' *Ll/,Z

Patented Oct. 30, 1923.

UNITED STATES PATENT OFFICE.

JAMES F. GoRMAN AND FRANK c. GoniviAN, or NEW YORK, N. Y:A

BURGLAR ALARM.

Application filed December 13, 1821. Serial No. 522,102.

T o @ZZ wlw/m. t may concern:

Be it known that we, JAMES l?. GoRMAN and FRANK C. GORMAN, citizens of the United States, and residents of the city of New York, borough of Bronx, in the county of Bronx and State of New York, have invented a new and Improved Burglar Alarm, of which the following is a full,

. clear, and exact description.

This invention relates to a burglar alarm and has particular reference to one adapted for use in connection with containers or receptacles such as safes.

An object of the invention is to provide an alarm device which is effectively hidden from view, simple and rugged in construction, and yet which will instantly operate either when the receptacle as a whole is moved from its proper position or when an attempt is made to open the door or cover of the receptacle,

Another object resides in the] provision 0f means wherebyr whenever either one or both of these attempts are made a suitable signal will automatically be actuated.

. A further object resides in the particular construction and arrangement of parts whichare hereinafter described and claimed and shown in the accompanying drawings.

The invention is illustrated in the drawi'ngs, of which-4 Figure 1 is a horizontal section taken through a container or safe showing the apparatus whereby the above objects are achieved. i

Fig. 2 is a front view of a safe with the door open.

Fig. 3 is a partial vertical section showing the manner in which the connection is made between the safe and the signal circuit.

The form of the invention shown in the drawings is a preferred form, although it is itself as a whole is moved from a definite position a signal will be actuated. To this en d I provide brackets 4 suitably supported within the safe and adapted to act as a bearing forl arod 5. Thisrod 5 extends from the front to the rear of the container, through an opening 6 in the rear wall of the container, and extends a definite distance beyond the rear wall. The rod is provided with a collar 7, and a spring S is disposed around the rod 5 between the collar 7 and the rear wall of the container. This spring tends normally to hold the front end 9 of the rod forward in a definite relation to the doors 2 and 3. The rear end l() of the rod is preferably pointed and adapted to extend Vbetween spring circuit contacts 11 and12. These contacts are mounted in any suitable manner, preferably within a recess 13, and are connected with wires 14 andv 15 in which are disposed a battery 16 and a signal device or bell 17.

When the doors 2 and 3 are opened, the spring 8 `causes the rod to move forward until the collar 7 abuts against the bracket 4.-. With the container 1 in the position shown, this would cause the rear end 10 of the rod 5 to be withdrawn from the contacts 11 and 12. This withdrawal would cause the contacts to engage each other and close the signal circuit. The withdrawal of the end 10 from the contacts may also be effected., it will be observed, by moving the whole body of the container 1 away from the position shown.

If the safe is provided with two doors, such as 2 and 3, then in order that the closing of door 2 may effect the movement of the rod 5,1 prefer to provide an aperture 18 in the door 3 through which a plug or projection 1 9 on the door can project to engage the end 9 of the rod 5 and actuate it.

It is, therefore, readily perceived that we have provided simple, durable means which can be readily applied to any container or safe and which will project from the rear face thereof into association with part of a signal circuit to hold the circuit open when thea safe is in a normal condition but which, the instant the safe as a whole is moved, or the door thereof, will cause the closing of the signal circuit. The position of the signal is immaterial; it may be in the immediate vicinity or it may be any distance away. It is also possible, although not shown, to provide other means, such as push buttons, for operatingl the signal in the saine circuit. By haw'ille the contacts, which are held apart normally by the rod Il1 disposed in a recess the col'ltainer can be pushed much nearer the wall so that the n:- istence of this signal device will be ell'ectively hidden by the container itsell.

that we claim is:

1 A burglar alarm apparatus 'tor con tainers, which comprises a slidablc lllcn'lber disposed within the container and projecting there'iirolll at one end, tlle other end of the member disposed against the. cover ot the container, resilient means associated with the slidable member holding` it lorcibly against the cover. a sigl'lallingi` circuit slritch disposed closely adjacent the 'tace olf the container lfrom which the slidable member projects, the member adapted to'el'lgaec the switch and hold it open when lthe container is disposed in a definite position with respect to the switch, a signal circuit con* llected with said switch, iollalling 'l'leaull; in said circuit.` "ille switch anapted to close when the slidable member is witlnlrawn 'trom engagement therewith.

A burglar alarm flevice Vtor containers, which comprises a signalling,v circuit switch, a' switch lher projecting controlling me. from the contail/lcr and engaging the switch to hold it` open when the container is disposed closely adjacent thereto, said switch adapted to close when the meillller is withdrawn therefrom, a portion oli said nlelnber engaging the. cover or door et the container, and resiliellt means within the container holdinpthe member aga inst the door.I said member, when the door is open, adapted to be moved by the resilient means to withdraw it 'trom engagemei'lt with the switch whereby the signal circuit is closed.

burglar alarm apparatus 'for con-` ilers, which comprises a signalling circuit switch, a wall having a recess in which said switch is located, and a switch-controllingr member projecting` from said container to el'lgage with the switch and hold it open. said switch normally tendingto remain closed when not so engaged.

fil. burglar alarlll apparatus Ytor containers, which comprises a signalling circuit switch, a wall hal/ingA a recess in which said switch is located, a switch-controlling member projecting trom said container to engage with the switch and hold it open, said switch normally lending` to remain closed when not so engaged, and means causing the association et lle projecting member with the door ot the container whereby the projecting n'lcnlber is ll'illulrawll from the switch when the door is moved.

in coliflbinati-on a sale provided with a inner and an outer door, the inner door laying all aillerl'ure therein, a projection on he outer door adapted to be disposed in said aperture when the doors are closed, a switch rod lesilieutly supported within the salie and adapted to bear against the projcclion when the doors are closed, the other end ol said rod. projectillg i'irom without the sat'c through the rear wall thereof, a switch disijnyed adjacent the rear end ol the rod and llcld open by the rod when the outer door is closed, a signalling means, and a source et current in circuit with said switch and said sigl'laling means, said switch adapted lo be closed when the outer door is open and the rod is moved from normal position.

'JAMES F. GORMAN. FRANK C. GORMAN.

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