US1252834A - Electric safety device against housebreaking, burglary, and the like. - Google Patents

Description

C. PASTORE.

ELECTRIC SAFETY DEVICE AGAINST HOUSEBREAKING, BURGLARY, AND THE LIKE.

APPLICATION F'ILED APR. 19, 1913.

Patented Jan. 8, 1918.

CESARE rAsronE, or SESSA AU RUncA, ITALY.

ELECTRIC sAFETYDEvIoE AGAINST HOUSEBREAKING, BURGLARY, AND THE LIKE.

To all whom it may concern:

Be it known that I, Cnsxnn PASTORE, of independent means, a subject of the King of Italy, and residing at Sessa Aurunca, Province of Caserta, Italy, have invented certain new and useful Improvements in Electric Safety Devices Against Housebreaking, Burglary, and the like, of which the following is a specification, reference being had therein to the accompanying drawing.

The invention refers to electric safety devices against house-breaking, burglary and the like'of that type in which the articles to be protected are inclosed, or covered, by a curtain of electric conductors, so that access to the protected article can be obtained only by cutting or tearing the curtain or by separating in other Ways the electric conductors. In these devices, the electric conductors of the curtain are connected to a fixed electric wiring, which sends in an alarm or signal arranged to announce any attempt to tear the curtain or separate the electric conductors forming the said curtain.

In the known devices of this type, the conductors forming the curtain are connected to the fixed conductors by means of hooks or the like, which are necessarily exposed to view or may in any case be easily uncovered. It is thus easy to form another circuit between the hooks, for instance, by connecting them by a wire, so that the curtain may be torn or cut or the conductors in other ways be separated, without alarm being given.

The invention avoids this inconvenience by a special construction of the connection between the curtain and the fixed circuit, and of the fastening devices used for this purpose. a

An embodiment of the invention is shown in one form of construction in the annexed drawing, wherein Figures 1 and 2 show the two parts of the device in elevation and Fig. 3 is on a larger scale a cross section thereof, showing the formation of the fastening devices.

The device comprises a rigid frame a. (Fig. 1) which is constructed of wood or other suitable material and whose size may be varied as desired, and a movable curtain d (Fig. 2) corresponding in shape and size to the said frame. The curtain is attached to the frame by means of spring contacts 7", as shown in Fig. 3. In the frame there are formed holes having arranged in them the Specification of Letters Patent.

Patented Jan. 8, 1918.

Application filed April 1.9, 1913. Serial No. 762,168.

female members 9- of the spring contacts? connected between them by wires 0 embedded in the wood or otherwise hidden out of sight, as shown in Fig. 1.

The curtain cl consists of two or more quilts or thicknesses of material, which in close a net-work of flexible wires 6, for ex ample of copper, each of which wires ends in the male members of the two oppositely arranged contacts so as to connect these members in pairs, as is shown in Fig. 2.

When the eurtain'has been arranged on the frame, the wires 0 and the wires 6 form one single continuous circuit ending in two of the female members of the contacts. These two, female members are connected by two conductors i and 72., which are suitably hidden, and protected, in the walls of the room, in which the apparatus is located, and are connected to an outside circuit.

When the device is working, the electric current passes continuously through the wires 0 and 6, while, as soon as any one of the contacts is unhooked or cut, or one of the wires e torn, the circuit will be interrupted. This attempt to burglarize or intrude may then be announced by any suitable alarm installation. Y

As the contacts are thus completely hidden and protected, it is impossible to form between them an auxiliary circuit and to unhook or cut the curtain, without alarm being given.

The same object may be obtained, when not using a frame, by connecting two or more curtains between them in the manner described with reference to the connection between the curtain and the frame, one of these curtains being provided with the female members g and the other with the male members of the contacts, the contacts of each curtain being alternately connected between them as above described, so that also in this case one single continuous circuit is obtained.

What I claim is:

In an electric safety device of the character described, in combination, a curtain. a net-work of electric conductors, carried by the curtain, the conductors being arranged in parallel relation, lnale spring contacts connected by the conductors, a frame of Wood or other material haying embedded in it corresponding female contacts suitably insulated, means alternately connecting the female contacts, the male contacts on the curtain entering the female contacts on the frame, the electric connections being ar- 10 ranged so that one continuous circuit is maintained when the curtain is mounted on the frame.

In testimony whereof I have signed my name, in the presence of two subscribing Witnesses, the 5th day' of April, 1913.

CESARE PASTORE.

lVitnesses I GIOVANNI VALATELLI, FoRELLo FONTAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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