US481590A - Joseph sachs - Google Patents

Description

(N0 Model.)

J. SACHS.

v AUXILIARY FIRE ALARM SYSTEM. No. 481,590. A Patented Aug. 30, 1892.

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UNITED STATES PATENT OFFICE. I

JOSEPH SACHS, OF NEW YORK, N. Y.

AUXILIARY FIRE-ALARM SYSTEM.

SPECIFICATION forming part of Letters Patent No. 481,590, dated August 30, 1892.

Application filed March 29, 1892. Serial No. 426,960- (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH SACHS, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Auxiliary Fire-Alarm Systems, of which the following is a specification.

The object of the present invention is to provide a system of electrical communications with fire-alarm boxes, whereby an alarm can be sent by an operator at an auxiliary sending-box located at any distance from the street fire-alarm mechanism, and a returnsignal received at the sending-box to show whether the device which operates the alarm mechanismhasperformed its proper functions without opening the street-case in which the alarm mechanism is placed.

Heretofore auxiliary fire-alarm signals have been provided which form a part of or are electrically connected with the fire-alarm apparatus or mechanism located in the streetcase; but in this invention the object is to supply a separate, simple, and inexpensive electrical device which can be placed within any fire-alarm street-case for operating it mechanically, and then to provide a single circuit, which may consist of one wire andthe ground, having in said circuit an auxiliary sending-box at the opposite end of the line provided with a circuit-closer and a returnsignal therein, which is operated only when the operating device in the street fire-alarm case has been properly actuated by this auxiliary sending-box, all of which will now be set forth in detail.

In the accompanying drawings, Figure 1 is a view of a complete circuit, showing the firealarm street-case containing the alarm mechanism and the operating device for releasing the same, and an auxiliary sending-box containing a circuit-closer and a return-signal, both the operating device and the auxiliary sending-box being connected by a single wire and ground return; Fig. 2, a front view of the auxiliary sending-box, showing circuit-closer and return-signal; Fig. 3, a side view of the same; Fig. 4, an end view of same, showing return-signal only; and Fig. 5, a view showing modified form of connecting up the difteren devices shown in Fig. 1.

In constructing my invention it should be borne in mind that the primary object is to place in the street fire-alarm case an electrical device which is operated by a circuit that is entirely independent of the circuit which operates the fire-alarm mechanism, and the only connection between this operating device and the fire-alarm mechanism is a mechanical connection, preferablyin the form of a link, rod, or cord, so that when the armature of the operating device is actuated it will operate the fire-alarm mechanism in the street-case in the same manner as it it had been operated by hand directly at the streetcase. This mechanism consists of a magnet A, which is mounted in this instance on one limb B of a U-shaped piece, the other limb O having hinged thereto an armature D, which armature is connected by means of a rod E with the trip-arm F of the alarm mechanism. To the limb G is attached by means of an insulated piece a contact-finger G, with which the armature D engages when the magnet is energized and the alarm mechanism is set in motion. This contact-finger G is connected by a conductor H with the ground at H, and also with one pole of the battery I. The limb C of the magnet is connected with the other pole of the batteryIby wire K. One end of the magnet-windingA also connects with the limb O and the other end of the winding with the circuitwire L, running to the circuit-closer in the auxiliary sending-box.

The auxiliary sending-box may be located at any distance from the street fire-alarm box, which contains the mechanism just described, and it contains a circuit-closer M, which may be made in any desired form best adapted to the purpose. I prefer using it in the form of an ordinary push-button, as shown. Below this circuit-closer is a base-piece O, which is provided with a right-angled or forwardlyprojeeting limb P, with a short return-bend Q. To this limb P is secured a magnet B. To the projecting end of the base 0, I hinge an armature S, which projects out slightly beyond the ma net B. To the return-bend Q is attached an L-shaped plate T, which extends overthe magnet and terminates at the end of the magnet in close proximity to the free end of the armature S. Centrally onthe body of this plate T is an inscription Signal Received, or words of similar import, and directly in front of this is an aperture in the ease through which this inscription may be seen. This plate has also hinged thereon a swinging plate U, adapted to cover up the inscription or words. The free end of this swinging piece U hasafinger U, which when the hinged piece is in its normal position over the inscription is held in place by a latch V, hinged to the face of the piate T.' Thelatch is held in place by a spring V, as shown. The end of the L-shaped plate T on its lower side has a projecting point or lug W, and the free end of the armature S has a finger W, which projects over the plateT and is then bent down behind the point W, so that the throw of the armature is regulated by this stop or lug. The finger W, it will be observed, engages with the latch Vbelow the notch, so that when the hinged piece U is placed in position, as shown in Fig. 2, and the armature S is attracted by the magnet R and moves toward the end of the plate T, the finger W engages the latch V, moving it over sufficiently to trip or release the lug U from the notch of the latch, permitting the hinged piece to drop down and rest on the finger W, and when the armature again returns to its normal position the hinged piece drops.

down by force of gravity to the position shown by dotted lines Y, Fig. 2, thus exposing the inscription or return-signal referred to. It will be seen that one end of the magnet'winding R is connected with the circuitcloser and the other end of the winding with the ground at Z.

The auxiliary sending-box has in its front face an aperture Y, through which access is gained to the push-button or circuit-closer. Over this aperture I paste a slip of paper Z, on which is placed any suitable directions for operating the device. -The object of this is to keep the circuit-closer normally sealed up, so that in order to operate it the paper seal Z would have to be ruptured in order to actuate the push-button.

In operation we will suppose that one of these auxiliary sending-boxes is located in a residence remote from the street fire-alarm box with which it is connected by the wire L.

When now the circuit-closer is pushed in,the.

current from the battery I is sent through wire K, limb C, magnet A, wire L, thence through circuit-closer M and magnet R to the ground at Z. The magnet A being thus energized, the armature D is drawn down, and thus actuates the trip-arm ot' the street-alarm mechanism, and, therefore, the armature D engages with the contact-finger G, thereby short-circuiting the battery I and again returning the armature to its normal position. As the sending of a current through the magnet B also attracts the armatureS, the hinged piece U is at the first movement of the armature tripped or disengaged from the hook of the latch V and held on the finger W of the the armature isreleased and returns to its normal position, thereby. allowing the hinged piece U to drop.

I particularly call attention to one important feature in this system. It is obvious that a fire-alarm box equipped with an operating device of this character does not require to be opened in order to be positively assured that the signal is given or properly responded to by the alarm-box, because the auxiliary operating device or the circuitcloser therein and the return-call, which are always together in one case, are adapted to show the return-signal only when the alarmbox has done its work properly, or, rather, when the operating device has properly acted upon it. The device is therefore perfectly adapted as a return call or signal for hotelbells, or for any other purposes where returnsiguals are desirable. It should be understood, however, that the attachment of this operating mechanism in the alarm-box does not interfere with the operation of the alarm mechanism at the case, nor is the auxiliary mechanism operated or the return-call set in motion when the alarm mechanism is actuated by hand.

What I claim as new isl. A fire-alarm system consistingof a firealarm mechanism and a separate and independent electro-magnetic tripping device for said fire-alarm mechanism, a circuit-controlling device directly connected with said tripping device, and an auxiliary operating device at the other end of the circuit, consisting of a circuit-closer and a return-call.

2. A fire-alarm system consisting of the firealarm mechanism, a separate electro-magnetic tripping device for said fire-alarm mechanism, a circuit-control1ing device connected with said tripping device, and an auxiliary operating device composed of a circuit-closer and retu rn-call in the same circuit as the tripping device and circuit-controller in the fire-alarm box, but remote from said box, substantially as set forth.

3. A fire-alarm system consisting of firealarm mechanism, a separate electro-magnetic tripping device for said fire-alarm mechanism, a circuit-breaking device connected with said tripping device, a circuit-closing device remote from said box, a return-call adjacent to said circuit-closer, and a single electric circuit connecting said tripping device, said circuit-breaking device, said circuit-closer, and said return-call.

4. A fire-alarm system consisting of a firealarm mechanism, a separate electro-magnetic tripping device for said fire-alarm mechanism, a circuit-controlling device connected with said tripping device, and any number of circuit-closers and return-calls remote from said fire-alarm mechanism and in one and the same circuit with each other and with said tripping device and said circuit-controlling device.

5. A fire-alarm system consisting of a firebattery in the circuit with said circuit-closers and return-calls.

6. A fire-alarm system consisting of a firealarm mechanism, an electro-magnetic tripping device for said alarm mechanism, a circuit-controlling device on said tripping device, a circuit-closer remote fromvsaid alarm mechanism, and a return-call adjacent to said circuit-closer and comprising a movable guard normally held by alatch and a magnet having an armature to engage with said latch,- said magnet, circuit-closer, tripping device, and circuit-controlling device being in one and the same electric circuit, whereby when the circuit-closer is operated the tripping device will be actuated and simultaneously the said magnet will be energized, thereby tripping the said latch, allowing the movable guard to fall upon the armature of the said magnet, and-whereby the .said circuit-controllingdevice will beoperated simultaneously with the .movement of the tripping device, thereby breaking the circuit, so as to allow the armature of the said magnet to retract, allowing the movable guard to drop to its limit of movement.

Signed at .New York, in the county of New York and State of-New York, this 22d day of March, A. D. 1892.

JOSEPH SACHS. Witnesses:

J. S. ZERBE,

O. FRED. BUCHANAN.

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