US1065628A - Signal-sending device. - Google Patents

Description

H. O. RUGH.

SIGNAL SENDING DEVICE.

APPLIUATION II-LED NOV. 13, 1909.

Patented June 24, 1913.

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HA E/RY G. RUG-H, OF SANDWICH; ILLINOIS;

ASSIGNGR, BY MESNE ASSIGNMENTS, TO

THE HELL SWITCH & SIGNAL COETFANY, A COBPORATIQN F MAINE.

sIeNAt-snnnrne nnvrcn.

Qriginal application filed May a,

Specification of Letters Patent. Patented Julie 24 1913. 1909, Serial No. 493,940. allividied and this application filed November 13,

1909. seria 'no.527,a58.

To all whom it may concern:

13s it known that I, HARRY O. Roan, citizen of the United States, Sandwich, in the county of Dekalb and State of Illinois, have invented a certain new and useful Improvement in Signal- Sending Devices, of which the following is afull, clear, concise, "and exact description, reference being bad. to the accompanying drawings, forming a part of this specification. p v

This invention relates to signalin systems, and has for its object the provision of new and improved devices to be used at a central station for calling a number of statiogisconnected to the same line wires, which are preferably of the step-by-step or impulse type.

Inapp'lication, Serial No. 493,940, filed May l, 1909, I have shown a call box showing the general features of the call box of this invention, and also setting forth auxiliary features which are now divided from said application and made the subject-matter of the present application. These instruinentalities comprise auxiliary means inconnection with a call-box arrangement, whereby, after'one station has been called, additional stations can be called Without using said call box, which auxiliary means enables the operator to signal any number of additional stations without again using the call box.

I will describe any invention more in detailby reference to the accompanying drawing, which illustrates the system diagrammatically.

Referring to the drawing, the line circuit over which the impulses are to be sent, is indicated at 1, 2, position of the switching mechanism 3, connects said line wires to a terminal blo cln-al. From this terminal block, the train despatchers telephone and signal-receiving circuit. is brought out through the coiiduc- .tors5 and 6, through the interposition of the condenser '7, which conductor 5, after passing through the secondary of an 111(1110- residing at .sition of the night bell which, through the inter-' tion coil, connects directly with a spring 2 of a springjack. Conductor 6,,aswill be seen, connects with spring 9 of said spring jack. The transmitter 10 and receiver 11 are respectively connected to a plug 12, which is adapted to connect'the same with the springs 8, 9 and 13, and contact 14, the receiver being connected with springs 8 and 9, and the transmitter being connected with the spring 13 and contact sleeve 14. The

- primary of the induction coil, in series with the battery 15 and a cut-in key 16, is c0n- 'nected between the contact sleeve 14 and the spring 13. The secondary 17 is connected the other spring 9 is connected directly to the conductor 6. This establishes the operators local talking circuit. l

The local signal receiving circuit of the operator consists of the bell l8, battery. 19,

relay 21 is connected, through the interposwitch 22, directly bet-ween the conductors 5 and 6, thus being in bridge of the line wires 1 and 2. A relay 21 is designed to be operated by vibratory currents. Normally its armature is in circuit with its back contact and thereby closescircuit through the relay and bat 'tery 19, whereby relay 20 has its armature disconnected from nected with its back contact. The circuit through the bell 18 is thus open. When alternating current from the substations comes in over the line wires 1 and 2, it vibrates the armature of relay 21, thereby opening the circuit through the relay 20 and permitting the armature of the relay 20 to connect the bell 18 with the battery 19. The relay 21 is designed to be operated by vibratory currents. Normally its armature is in circuit with its back contact and thereby closes circuit through the relay 20 and battery 19, whereby relay QO-has its armature disconnected from its front contact, but connected with its back contact. The circuit through the bell 18 is thus open. When alternating current from the substations comes iinoirer its front contact, but con.

to the spring 8 and to the conduct-or 5, and

and operating relay 20, and a relay 21, which 7 29, back to the conductor 27.

. thereby permits spring 33 the line wires 1 and 2, it vibrates the armature of relay 21, thereby opening the circuit through the relay 20 and permitting the armature of the relay 20 to connect the bell 18 with the battery 19.

My improved signal-sending device is adapted to transmit periodic impulses over the line, corresponding to the number of the station to be called, and after sending suflicicnt impulses, establishes a circuit condition, which permits the signal at the substation to operate, whc'reafter, the signal-sending device impresses current on the line to release the various devices at the substations, all as will be now explained.

Impulses are transmitted over the line wires 1 and 2 from the battery 23, which battery is connected to two springs 24, 24, which springs are normally in the contact position as shown in the figure. When the relay 25 is actuated to draw up said springs 24, the polarity of the battery, as connected to the line conductorsl and 2, is reversed. This will be moreparticularly explained later.

Whenever relay 26 is actuated to close circuit through its armature, circuit is closed through the conductor 27, through the line wire 1, ba k over the line conductor 28, upper contact spring 24, battery 23, lower contact spring 24, conductor Thus, for every operation of the relay 26, an impulse is sent over the line wires 1, 2. Now, should the relay 25 be energized temporarily, while the relay 26 is not energized, the reverse battery polarity is transmitted over line conductors 1 and 2, through the agency of conductors 30 and 28. I will now describe how the relays 25 and 26 are, operated to send these various impulses.

My contact-making device consists of a wheel 31, operable by means of a handle 32, and adapted to engage the springs 33 and 34, which are normally not in contact therewith. 61 which has holes 62 therein, which holes are adapted to be engaged by a pin 63 car ried by the arm 32 and manipulated by the button 64 thereof. The holes 62 correspond to the various substations to be called and the pin 63 is inserted in the hole 62 corresponding to the station desired, whereupon the handle 32 is rotated contra-clockwise until its projection 65 engages a stop'46 for purposes described hereinafter. After this the manual operation of the'device ceases and the spring 66 rotates the element 31 and wheel 61 to normal against the stop 67 The projection 65 is of course so arranged that it does not interfere, but passes above stop 67. In starting the mechanism, the handle 32 is made to engage the wheel 31,, and to rotate in a contra-cloclnvise direction, which to engage a conspring 33 wire 2, through The element 31 is secured to a wheel tact strip 35, which closes a circuit that can be traced from said contact spring 33, the conductor 36, conductor 37, relay 25, conductor 38, conductor 39, through the winding 40, ot' the polar relay 41, to the frame of the relay 41, through conductor 42, bat tery 43, conductor 44, element 31, and element 35. This energizes the relay 25, andv sends current of what I'will call negative. polarity over the conductors 1 and 2, to release the selective devices at the substations. At the same time, the coil 40 of the relay 41 repels'it's armature 45, so that it is not in contact-making posit-ion. After the arm 32 has been further swung around, breaks with contact element 35, and spring 34 begins to engage element 31, but no contact is established through relay 26 on this account, as circuit is not closed by armature 45. The further actuation of the arm 32, in a contra-clockwise direction, however, electrically connects it with the contact element 46, and thereby a circuit is established through the coil 47 which serves tov attract the armature 45 to close circuit with its contact point 48. The manual actuation of the arm 32 thereupon ceases, and the c-lockwork mechanism begins to rotate the element 32 in clockwise direction, during which time spring 34 alternately engages teeth 49, thereby intermittently actuating relay 26, until the number of impulses has been completed, and the spring 34 stays in permanent connection with the elementBl', which thereby maintains current upon line 109 conductors 1 and 2, by reason of keeping relay 26 actuated, which is designed to op-- crate the substation signal, all as more clearly explained in my co-pending application, Serial No. 478,088, filed February 105 15, 1 909. r

The circuit through the relay 26 is traced. as follows: contact spring 34, relay 26,: conductor 50, armature 45, frame of relay 41, battery 43, conductor 44, to the element 110 31nand its teeth. The actuation of relay 26 thereupon sends positive impulses over line wires 1 and 2, as previously set forth. The arm 32 can be adjustably set with respect to the element 31, thus to vary the number of impulses to be transmitted over line Wires 1 and 2, before the contact spring 34 comes into a definite circuit condition to operate the local substation signal. Before the clockwise rotation of the element- 31 has 1 0 been finally completed, the spring 33 again engages contact element 35, which again actuates relay 25, to send a negative impulse overthe conductors 1 and 2, to release the substation devices. 125

It is, of course, necessary, as shown, that the negative impulses be not made coincident with the positive impulses. I provide auxiliary appliances, so that when one sta tion has been called, and I desire to call 130 mamas following stations, this may be done without again operating element 31, and for this reason I have provided a key 51, which is closed with its contact when the element 31 is on its return stroke, and this short-circuits relay 2 5, and prevents the sending of the neg-C lve impulse which would release the local substation stepping devices. After the element 31 has completed its movement and come-to rest, I operate the key 52, which, as will be seen, closes, through the agency of the conductor 53, the same circuit that is ordinarily established by the armature 54, and thereby I send additional positive impulses to step-up the devices further, or to maintain a given circuit position after a number of impulses have been sent, thereby to call the station desired. I further provide a key 55, which, when depressed, actuates the relay 25, to send a negative impulse, therebyto release any substation devicesl It will'be seen that the key 5 1 short circuits the conductors 37 and 38 of the relay 25,

thus to prevent sending of the release impulse. The front contact of the key 51 is directly connected with conductor 38 and the lever of the key through the lever of the switch 55 and its back contact is directly 4 connected with the conductor 37. This key 51 thus prevents sending of the release impulse. Thereafter key 52 is operated to send additional impulses to call one or more than one succeeding stations and the circuit which accomplishes this is traced from the line conductor 2, line conductor 56, conductor 28,

battery 23, conductor 29, conductor 57 to the lower contact switch 58 of the key 52, its associated front contact, the conductor 53, conductor 59 to the line wire 1.

To send a release impulse of negative polarity, I use the key 55 and depressing this key operates therelay 25 to send the release impulse, circuit conditions being as follows: from the upper terminal of relay 25, through conductor 37, lever of switch 52, lower; contact spring of key 55, front contact of key 55, conductor 60, battery 43, conductor 42,'coil 40, conductor 39 conductor 38 to the lower terminal of the relay 25.

It will be seen from this that the auxiliary keys 51, 52 and 55 enable me to selectively call a plurality of stations without again using a call-box arrangement, consisting of the impulse wheel 31 and handle 32.

lVhile I have herein shown and particularly described the preferredembodiment of my invention, I do not limit 'myselfto the precise construction and arrangement as herein set forth, but I 1 Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:' p

1. In a signal sending device for selectively callingia'plurality of stations, the

combination with a movable member and &

means oontrolledthereby to select either one i means, auxiliary switching means for in-.

eluding currents of given electrical character with the line circuit for selecting succeeding stations, auxiliary switching means for including currents of different electrical character with the line circuit for substation signal release purposes, and a line circuit to which said devices and means are adapted for association. 1

2. In a signal sending device for selectively calling a plurality of stations, the combination with a movable member and means controlled thereby to select either one of a plurality of substation signal receiving devices, means for operating said member to send a call for a pre-determined station, means controlled by said member whereby to restore said signal receiving devices when said member has completed its signal sending operation, auxiliary means to tempora-' rily render said signal receiving device the restoration thereof upon completion of the call, auxiliary means to temporarilyrender ineffective the restoration controlling means, and auxiliary means to select succeeding stations.

4. In a signal sending device for selectively calling one or more of a plurality of stations, the combination with a call box having means whenactuated to select for operation any desired station and to control the restoration thereof upon completion of the call, auxiliary means to temporarily render ineffective the restoration controlling means, said means including a circuit controlling switch, and auxiliary means to select succeeding stations.

5. In a signal sending device for selectively calling one or more of a plurality of stations, the combination with a call box having means when actuated to select for operation any desired station and to control the restoration thereot upon completion of the call, auxiliary means to temporarily render ineffective the restoration controlling means, and auxiliary means 'to select suc- "ceeding stations, said last aforesaid means including electrical switching devices.

6. In a signal sending device for selectively calling one or more of a plurality of having means when actuated to select for means including electrical swibe'hiiig tieoperation any desired station and to control Vices. 10 the restoration thereof upon completion of In Witness whereof, I hereunto subscribe the call, auxiliary means to temporarily my name this 4th day of October, A. D. 1909. rendeg' inefieetive the restoration oontrolling HARRY O. HUGH.

means, said means including a circuit con- Witnesses: trolling switch, and auxiliary means to select MAX W. ZABEL,

succeeding stations, said last aforesaid O. M. VVERMIGH,

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