US423487A - Lough - Google Patents

Description

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G.C-. MGCULLOUGH.

PIRE 0R POLICE TELBGRAPH.

- No. 423,487. Patented Mar. 18.. 1890.

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No. 423,487. Patented Mar. 18', 1890.

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G. C. MGCULLOUGH. PIRE 0R POLICE TBLBGRAPH.

No. 423,487. A Patented Mar. 18, 1890.

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FIRE 0R POLICE TELEGRAPH.

N0. 423,487. Patented Mar. 18, 1890.

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UNITED STATES PATENT OFFICE` GEORGE C. MCOULLOGH, OF RICHMOND, INDIANA, ASSIGNOR OF ONE-THIRD TO JOHN B. DOUGAN, OF SAME PLACE.

i FIRE OR POLICE TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 423,487, dated March 18,11890.v

' Application filed February 5, 1889. Serial No. 298.725. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE C. MoCUL- LOUGH, a citizen of the United States, residing at Richmond, in the county of Wayne and State of Indiana, have invented certain new and useful Improvements in Fire and Police Telegraphs; and I dohereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. `My invention relates to tire and police telegraph systems; and it consists of an improved repeater for use in such systems, whereby a breakin any circuit connected therewith willbe instantly known in the stations of all the circuits, and said repeater also .insures the correct transmission of the signals from one circuit to all the other stations, notwithstanding breaks in the same.

In the drawings which form a part of this application I have illustrated one form in which I have contemplated embodying my invention, and said invention is fully disclosed in the following specification and claims. Y

In the drawings, Figure 1 is a side elevation of my improved repeater. Fig. 2 -is a plan View ofthe same. Fig. 3 .is fa'diagrammatic view showing the circuits.V @Fig 4 is a detail view offone of the circuit-breakers employed by me in my repeater.V Figs. 5 to 8 are detail views of parts of the mechanism. Fig. 9 is a View of a portion of the device, showing the manner in which the trippinglevers overlie the detent; and Fig. 10 is a detail view showing the means for adjusting one of the parts of the mechanism.

In the drawings, E is the bed-plate of the mechanism, `which is supported upon suitable posts c. This table is illustrated as being of circular form; but any other preferred form might be employed.. Thefront of the table is providedwith projections c', which are supported at their outer extremities by` posts c2. Upon the extremity of each of these projections is mounted in a suitable bearing a lever F in a wellfknown way. The outer end of this lever extends slightly beyond the end 'of the projection c', and is provided with Yan armature g, below which is an electro-magnet G.' I employ as many electro-magnets with my repeater as there are circuits and connect desired manner, andanother projection f5 extends upon the other side of the lever. The projection ff has preferably an inclined side, as illustrated in Fig. 5, for a purpose hereinafter specified. l

In Fig. l the lever F is shown in its retracted position, or in the position which it occupies when the circuit through magnet G is broken. Fig. 9, the levers F there being shown as overlying a detent O.

Beneath the table E, and supported by the posts e, is a plate H, and upon suitable posts la above table E is mounted a small table K. A central shaft L is mounted in suitable bearings .in plate H and table K andpasses through table E. This Vshaft is provided with a pinion h below the table E, which engages thepinion of a weight or spring motor of ,any preferred construction which is capable of imparting motion to thev shaft L.

At suitable distances around the shaft L, and ata convenient distance, from the same, are the circuitfbreakers M, which are mounted uponsuitable posts, and in such a manner that each circuit-breaker lies in a different horizontal plane. I employ one more circuitbreaker M than there are magnets G and mount them in any convenient position and relation on the table E. Each of these circuit-breakers consists of a metallic or hardrubber cup of any preferred form and binding-posts m, to one of which is preferably attached a strip of elastic material m. Beneath the circuit-breaker is a lever m2, which is secured thereto by a pivot passing through'the bottom of the cup. .To this pivot within the cup is secured the cam m3, which engages the exible strip in. The binding-post, which is The normal position is shown in IOC Vnot provided with the llexible strip, has a contact-point extending to the `said strip, and preferablyat right angles to the same, and the cam is so arranged that a movement of the lever lfm2-will move the strip fm away from the contact-point and break the circuit. A suitable spring m4, which may be a spiral spring, as shown, or any preferred form of spring, is employed to retain the elastic strip mno'rmally in contact with the contact-point and to return it to its normal position after the circuit has been broken.

The shaft L is provided with a number of disks N equal to the number of circuit-breakers. These. disks are each provided with a recess n, extending from the periphery toward its center, and I prefer to make these recesses quite deep and provide the'inner edge with a set-screw'for attaching the disk will: be in the recesses n of the disks. "Whenv the shaft is rotated, vthe levers ong-will be deflected in such a manner asto -break the circuit of allv the circuit-breakers and make them again when t-he shaft has completed one revolution.

Upon s ome convenient portion of the bedplate or table E a lever O is pivot-ally supported-in a'suitable manner. The shaftl L is' provided with an arm l in substantially the plane of this lever, the said arm being rigidly J secured to the shaft and adapted to engage one end of the lever O. I may, however, em-

ploya disk having a notch'or recess to engage lever O, if I prefer. The lever O holds the arm and the shaft from rotation. 'The opposite end of the .lever O is provided with a plate 0,'whichpreferably is of a stepped or notched form, as shown in Fig. 2, so as 'to provide a short portion'for each of the projections f of thejarmature-levers F to restI upon. lThese projections neednot necessarily rest lupon the plate o, as it will be suti'cientl for them to be immediately above. A spring f4 is attached to the lever F and to some convenient projection from the .post e2, so as to permit of an adjustment of its tension. This spring will tend to draw down the inner end of the lever F when the circuit through the tripping-magnet G is brokenand the armature g released. Upon the portion e of the bed plate or frame at the side of lever F, opposite the projections f and f2, isv a plate P, which is pivoted at one end to some portion-of the frame. The other end is provided 'with projection 19, having a sharp tapering ,idly secured to the shaft L. `are secured to a sleeve r, which is provided thumb-screw Ffa-having a shoulder P3, by

which the position of the point p may be reg# ulated. When the leverF is released and is drawn down by spring f4, the projection f will depress the plate o, which will elevate the opposite end of the lever Op'and release the arm Z, permitting the shaft L to revolve by means of its actuating devices. As soon as the lever F has descended farenough to cause the arm Z to be disengaged, the tapering point of the projection p on plate P engages the projection f5 on'lever f, which` forces'the projection f2 forward against the spring f 3 and retracts the proj ection f', there-` by releasing the plate o. A spring o restores plate o to its normal position, which depressesv the opposite endof the lever O in time to engage'the arm Z and prevent the shaft L from making more than one rotation. An adjustable stop o2, of any preferred construction, is employed to limit the upward movementof plate o, and a similar stop p is provided to.

above the plate o; but to insure accuracy the projection f may be provided with an inlined face, as before described, and shown i ig. 5.

The shaft L extends above the table Kand is provided with fans R R, which serve to prevent too quick a rotation of the," shaft. Above the table K is a disk S, which is rig- The fans R R at its lower extremity with'a fiange fr', having peripheral ratchet-teeth. vAL caps is attachedto'the shaft above the sleeve fr by means of a pin or any other v.preferred construction'.` The plate"'or diskfiS is provided This upward movement'is so IOO IIO

Wit-h Spring-rams engaging Athe teeth was shown in` Fig. 2. Beneath the table yK is a disk T, rigidly secured to the shaftfL in any desired manner, and provided with a notch adapted tobe yengaged by a springpawl t when the shaft L is held in position' by the arml and leverr O. When the shaft has madea revolution by means of the devices j-ust describechit will be stopped by `the lever O and held from rebounding by the pawl t. The fans will, however, lie/permitted to rotate further until they are stopped by the resistanceof the air, the ratchet .merely slipping pasty theppawls, andthe injurious strain j which would result from stopping y the fans suddenly is thus avoided.y

From the foregoing description it'willbe seen that when' the circuit through any of the magnets G is broken the repeater will be op- I of the circuit-breakers Will be broken and again made. Y

In employing my improved repeater iu a iire or police telegraphy system I station the instrument at a central point, which maybe a separate station `or it may be in an engine `house or police-station.

I provide as many magnets G as there are stat-ions or enginehouses in the district in Whichthe system 1s used. V Each engine-house is located in an` alarm-circuit provided Withcall-boxes, and at the engine-houses' I preferably locate a recorder of any preferred construction'to register the alarm or signal in any of 'the Wellknown Ways.

In Fig. 3 I have illustrated the circuits employed in connection With the system in Which my improved repeater is to be used. A, B, and C are engine-houses or police-stations, at

which are located suitable recorders c b c,' which are connected at the central stationy with the repeater D by a circuit in which are Vlocated fcall-boxes u, a, b b, c c, e, of the usual or any preferred construction. One Wire of each circuit is connected with the tripping-magnet G, which is used withl that circuit, the other Wire being attached to one of the circuit-breakers M, which is in turn connected with the magnet G. As before stated, I employ an additional circuit-breaker, which is independent of the circuits through the call-boxes. Through this circuit-breaker passes-a circuit in Which are located gongs d, one at'each engine-house or police-station.

v It-will be obvious that from the previous description if a sign al or an'alarm be turned in from one of the call-boxes in the circuit -in which enginehouse C is located the alarm will be recorded by the register in engine-house C. NVhen the circuit is .broken in the callbox to make the first stroke of the alarm, the magnet G will :release itsl armature and the shaft L Willmake one rotation, thereby breaking the circuits through engine-houses A and B and causing the registers therein to record the first stroke of the alarm. At the same time the gong in engine-houses A, B, and C will each4 strike one-the {irst stroke of the alarm. This operation will be repeated .until the complete signal or alarm has been re'- ceived at each of the engine-houses on register and gong simultaneously. Y

If -a break v should occur in the circuit through station C the magnet G Would release its armature, the shaft L Would make one revolution, and the gong ineach station sound a single strike, thus notifying the stations that a break had occurred, and at the central station it can be readily determined which circuit is broken, as the.magnet.G, connected With the broken circuit-,Will not attract kitsarmature.

If any alarm should be turned in onhcircluit A or B While the circuit C was broken the register at station C would not record the alarm, but it Would be. received on the gong.

Thus it will be seen thatQb-y placing the, gong in Yan independent circuit the alarm will alv `Ways be received, even though the circuit through the register 'should be broken.

I have shown and described asy'stem containing three engine-housesand one repeater.

I claim, and desire to secure by Letters Pat-l v I l. In a fire and police telegraph system, the combination, With a central station, of independent outlying main-line circuits, a station provided With a sign al-receiver ingeach of said circuits, a repeater at the central station connected With each of said outlying circuits, and an independent circuit connecting said repeater with a gong at each vof said outlying stations, whereby a sign al Will be yrepeated at each station, notwithstanding a break in the scribed. Y

2. In a fire and police telegraph system, the combination, with a central station, of Aindemain-line circuitthereof, substantially as dependentoutlying main-line circ.uits ca llboxes and a station provided With a signalreceiver in each o f ,said circuits, a repeater at the central station connected with each of `said outlying circuits, and an independent circuit connecting said repeater Witha gong ico at each of saidy outlying stations, whereby a -signal Will be repeated at each station, notwithstanding a break inthe main-line circuit thereof,` substantially as described.

3. Ina fire or police telegraph system, the

y combination, with central station, of outlying circuits having a station `and call-boxes in each, and an independent circuit connected Witha gongat each of said outlying stations,

a circuit-breaker in the gongcircuit, and a circuit-breaker and tripping-magnet in each of the outlying circuits, substantially/as described.

4. A repeater-for a central lire or police telegraph station having circuit-breakers for independent outlyin gcall and station circuits, and a circuit-breaker for a commoncircuit, an actuatingdevice for said circuit-breakers under tension, a detent for -said actuating device, and tripping-magnets in each of said call and'station circuits for`operatingf said detent, substantially as described.

5. A repeater for a central .iire or police IIO telegraph station having circuit-breakers for independent circuits, an actuating device under tension for said circuit-breakers, a detentfor said actuating device, and tripping-.mage

nets for releasing said detent, there being one more circuit-breaker than tripping-magnets, substantiallyV as described.

G. In a repeater for a central station, the

combination, With a revolving shaft under of an armature-lever having the lever fpivf tension, of circuit-breakers arranged concenl oted therein, having a projection engaging trically to said shaftincluding pivoted levers y having one end in operative engagement with the movable contact'of said circuit-breakers, and projections on the said shaft for engaging the free ends of said levers, substantially as described.-

7. In a repeater 'for a central station, the combination, with axrevolving shaft under tension, of circuit-breakers arranged concentrically to said shaft including pivoted levers having one end engaging the movable contact of said circuit-breakers, projections on said shaft for engaging the free ends of said levers, a dctent engaging a project-ion from said shaft, and a tripping-'magnet provided with an armature-lever for releasing said detent, substantially as described.

8. The combination, with the revoluble shaft, a detent-lever, and a tripping-magnet,

said detent-.lever, and another projeetion'extending beyond the edge of the armature-lever, and the pin p, substantially asdescribed.

9. A circuit-breaker consisting of an annular main body, two binding-posts set at right angles to each other and having extensions meeting with-in the hollow body, one of said extensions being elastic and bearing against the other, and a lever having one end engaging said elastic extension and the other end extending outside of the annular body, sub stantially as described.

In testimony whereof I afx my signature in presence of two Witnesses.

Gnonen o. MooULLoUGH.

Witnesses:

JOHN L. YARYAN, WILLIAM A. BAUMER.

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