US279193A - Combined telephonic and burglar-alarm system - Google Patents

Description

Patented June 12, 1883.

W. S. SHOUPE '8v T. BUSKIRK.' COMBINED TELEPHONIG AND BURGLAR` ALARM SYSTEM. No. 279,193.

(No Model.)

y ZA@ UNITED STATES PATENT EEIOE.

WINEIELD s. sHOUrE, OE ELYEIA, ANDTHEODOEEBUsKiEK, OE TOLEDO,

' AssiGNORs OE ONETHIRD To WILLIAM KLINE, OE TOLEDO, OHIO.

fCOMBINED TELEPH'ONIC AND BURGLAR-ALARNI SYSTEM.

SPECIFICATION forming part of Letters Patent No. 279,193, dated June 12, 1883.

A Application filed November 27, 1889.

To all whom t may concern:

B e it knovm that we, WINEIELD S. SHOUPE and THEODORE BUsKIRK', citizens of the United States of America, residing, respectively, at Elyria and Toledo, in the counties of Lorain and Lucas and State of Ohio, have invented a new and useful Improvement'in Combined Telephonie and Burglar Alarm Systems, of which the following is a specication.

Our invention relates to electric burglaralarms; and it consists in the combination and arrangement of devices, hereinafter more fully described, for the attachment of a burglaralarm to a telephone-circuit.

In order to enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe its construction and operation, referring to the annexed drawings, in which- Y Figure 1 is asectional view of our auxiliary annunciator-drop; Fig. 2, a perspective View of our improved switch-key; Fig. 3, a section of our alarm, and Fig. 4 a diagram of a circuit in which our devices are combined for operation.

A is the central oiice of a telephone system, containing any desired number of annunciators, B, and the usual fittings of such an office.

The annunciator B is formed, as usual, with ar numbered or lettered tag, b, which is held up by a catch or hook, b, secured to the hinged armature a of an electro-magnet, a', to which the main-line wires are attached. To the back of the box or @ase to whiehthis agis attached up the tag b2;

we secure a similar auxiliary tag, b2, provided on its lower edge with an angular offset, b3, which, when the drop falls, will come in contact with the frame and prevent its falling farther than to a horizontal position, as seen by dotted lines in Fig. 1.\ In the frame or box we also provide a small wire or rod, b, passing through the box and projecting in front beneath the drop-tag b. This rod is shouldered and provided with a coiled spring, b5, which, while it holds the wire or rod normally in the position just described, allows it to be pushed through to contact with the offset b3 and throw This latter tag is also held up by a catch-hook, c2, secured to the armature a, and operating by a reverse motion of the armature from that which actuates the hook b.

(No model.)

The armature a. is provided with a small arm,

a3, which, when the armature is released from' the magnet, will contact with a small piece of metal or electrical conductor7 a4.

C represents a local battery in a short circuit, formed by the wires oc, attached to the armature a and contact-point ai, and containino" a switch-ke cl and an electric alarm c3.

By this device the local circuit is broken when the armature a is in contact with the magnet a',- but when the armature is released the connection is established between the arm a and` circuit, which is attached to all the windows' and doors of the station, and may be thrown into or become a part ofthe main line by an automatic switch, G. (Shown in detail, Fig. 2.) This switch consists of two strips of brass or other conducting material, G, placedl side by side, and connected near their center byl a short spring,` g, firmly secured to one of the strips G, and lying loosely against the other, so as to be easily sprung away from it to break the electrical coimection between them, as represented by dotted lines in Fig. 2. The mainline wire to the telephone is secured to adjacent ends of these strips G', and to the opposite ends are secured the wires from the local battery E. This key G is secured to the frame of a door or window in such a manner that a projection or button on the door or windowshutter will, when closed, press against the spring g and break its connection with one of the strips G of the key.

On the main line, between the key G and the telephone, is a signal-gong, H, .provided with an electro-magnet, h, and a hinged armature, h, to which is secured a hook-arm, h2, projecting beyond the front of the magnet, and engaging with a small pivoted hammer, h3, adapted, when released, to fall by its own weight and strike a single blow on the gong H.

The operation of the system is as follows: The auxiliary drop b2 is normally down during the day, and the local alarm circuit at the IOO central office broken by means of the switch c2, the telephone-circuit being over the main line P through the automatic switch G and telephone to the ground. The drop-hammer of the signalgong H at the station being down does not in any way interfere with the signaling and sending and receiving` of telephonie messages in the usual way. At night, at a stated time, the operator at the central office having switched in the alarm-circuit from battery C and thrown-up the auxiliary drop, the subscriber first throws up the hammer h3 of the signal-gong H, then closes the doors and windows, closing last the one to which is secured the switch-key G. As the button or pro -jection on the door or shutter last closed comes in contact with the spring-connection g between the plates of the switch-key the electrical contact is broken, and the current, instead of passing through the doors and windows, key, and back to the battery, passes through one arm of the key and through the telephone to the earth upon one wire, at the same time magnetizing the coil l1', attracting the armature L, and dropping the hammer if', to sound one stroke upon the gong H and notify the subscriber that the apparatus is in working order, the current from the opposite pole of the battery passing through the windows, and doors, and keys, and off to the eentral office, magnetizing the coil a', attracting the armature a to break the alarm-circuit and hold up the auxiliary drop-tag, and thence the `current passes to the earth to complete the circuit. If any attempt is made during the night toA break into the station D, the circuit would be immediately broken, the auxiliary drop would fall, and, the magnet being discharged, the armature is thrown off by the weight of the long catch-hook b,'making connection in the alarm-circuit and notifying the operator. The same result would happen if the wires were cut by a burglar between the station and central office, and the subscriber is thus fully protected, while at the same time the switching in of the burglar-alarm circuit does not in anyway interfere with the operation of the telephone.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. rPhe combination, with a telephone-cir1 cuit provided with a main office having the usual drop-tag operated by an electro-magnet, and an alarm-circuit closed by a reverse motion of the armature of said magnet, of a station or series of stations, each containing a local burglar-alarm circuit adapted to be thrown into the main line at will., substantially as and for the purpose set forth.

2. llhe combination, with atelephone-circuit containing one or more stations and a main office, each provided with the usual telephone signaling, receiving, and sending ap pliances, of a loealburglar-alarm circuit situated at the station and adapted to be thrown into the main' line at will, and an auxiliary drop-tag at the main office actuated by the reverse action of an armature, and an armaturelever adapted to close a local Y,circuit containing an alarm, substantially as shown and de- Scribed.

3. In a signaling device for the main office of telephonic circuits, the drop-tag b, hook b', attached to and operated by the armature a, electro-magnet c, and main-line wire l), in combination with the auxiliary tag b2, hook c2, also secured to the armature a, arm a, connection and wires c c of a local circuit,

- whereby the auxiliary tag is released vby a rcverse movement of the armature from that which releases the primary tag b, substantially as and for the purpose set forth.

4. The combination, with an electrical circuit, of a gong, H, hinged hammer h, hookcatch h2, armature h, and electro-magnet 71 adapted by the passage of a current of eleetricity over the line to release the hammer and strike a single note upon gong, substantially as shown and described.

5. A combined telephone and burglar-alarm system consisting, essentially, of the main office A, having the drop -tag b, released by the magnet a and armature a, au auxiliary tag, b, released by the reverse motion of the armature, and devices adapted upon this reverse motion to close a local circuit containing an alarm, a main-line circuit, l?, and a station or stations, D, each having a local burglar-alarm circuit adapted to be thrown into the main line at will,

a signalgong adapted to sound a single stroke,

'and telephonie transmitting and receiving devices, all eonstructed, combined, and arranged to operate substantially as and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

W'. S. SHOUPE. THEODORE BUSKIRK. lVit-nesses A WM. G. SHARP, Lns'rnn McLnnN.

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