US1792562A - Electrical controlling apparatus - Google Patents

Description

Feb. 17, 1931. H. s. YOUNG" ELECTRICAL CONTROLLING APPARATUS Original Filed May '7. 1927 INVENTOR'. H. 5, Yo um i7 Q'Z'T ALL Patented Feb." '1931 UNITED; S ATES PATENT oFFIcE HENRY S YOUNG, OF WILKINSBUEG, PENNSYLVANIA, 'ASSIGNOR TO THE UNION SWITCH & SIGNAL COMPANY, OF SWISSVALE, PENNSYLVANIA, A CORPORATION or rnnNsYLvAnrA ELECTRICAL coNrnoLLnve APPARATUS Original application filed May 7, 1927, Serial No. 189,614, Patent No. 1,744,821 dated J'anuary 2a 1930. Divided and this application filed November 9,1929. Serial No. 405,954.

My invention relates to electrical controlling apparatus and particularly to apparatus for controlling an electric motor such as a railway switch operating'motorl-or the like, i 5 from a remote point. 4

The present application is a division of my copending application, Serial No. 189,614, filed May 7 1927, for electrical controlling apparatus. e

I will describe one form of apparatus embodying my invention and will then point out the novel features thereof in-claims.

.Th accompanyingdrawing is a diagran1 matic view illustrating one form of apparatus embodying my invention. 1

. Referring to the drawing, the reference character A designates a railway switch of the usual and well known form, controlled by amotor M having an armature 1 and a field 0 2. Associated with switch A- is a. circuit controller E having a contact 34'which is closed at all times except "when theswitch occupies its reverse position, and. a contact 35.which is closed at all times except when the switch occupies its normal position. The

motor M is controlled by a manually operable lever L which may be one of a number of such leverslocated'at, a point remote from V the switch, such for example, as in an inter- 7 locking cabin. As hereshown, this lever 1s.

capableof assumingv four positions indicated "by dotted lines on the drawingyand desig-jl nated by the reference characters N, B, D and f R. The lever controls :t'wo- NB contacts,

which are closed for allpos'itions of the lever between N and B, and two 7RD contacts which are closed forfall lever positions between R and D. r

which is to be controlled from the lever L is located at such a distance from the interlock ing cabin which contains the operating lever j that-for reasons of-econom'oy and for other reasons it is not desirable to supply'the oper-r 5 ating' energy for the switch motor M directly over'line' wires from the cabin: ""Underthese conditions it is customary'to provide a circuit controller located adjacent the switch and controlled by the-lever L. This; circuit controller turn operates contacts which con It sometimes happens that the switch ture 58 is responsive to the relative direction of the currents supplied to the windings 57 and 59. Operatively connected with the armature 5 8 are a pair of contact members 64 and 65 which co-operate with aplurality of fixed contacts as will appear hereinafter. As shown in the drawing the parts are all illustrated in the positions'which they" occupy when the switch lever L is normal and when the switch A occupies its normal position.

If, now, it is .desired to reverse the switch A, the lever L is moved toward its reverse position,thereby closing the RD contacts on the lever. Current then flows from terminal X of a suitable source not shown in the drawing through an R1) contact on thelever L,

conductor 11, asymmetric unit 61, wire. 67,

winding 59, wire 66," asymmetric unit 63, conta'ct 68- -69 operated by circuit controllers, wire 70 winding 57 conductor 10, an RDcon tact on lever L and back to terminal Y of the same source. The current thus supplied to the windings 57 and 59 of circuit controller S 'causes operation of armature 58 to reverse the contacts 64 and 65. Current then flows from terminalX of a local source'adjacent the. switch through wire '71, contact 72-7'3 of circuit controller S, wires 7% and 7 5, field 2 of switch operating motor'M, wire 76,0011- tact 77-78 of circuit controllers, wire 9, contact of circuit controller E operated by switch A, wire 80, armature 1 of motor M, backfto terminal Y of-the local source. Gurrent flowing in this circuit causes operation of the motor Mto move the switch A to its reverse position.-' When the switch has completed'this movement the op'eningof contact 3% of '-circuit controller interrupts 'the'circuit forthe'motor." It should also be observed that as soon as the circuit controller S is reversed, the supply of current to the windings 57 and 59 is discontinued by the opening of contact 68-69 so that this device does not consume energy except when the device is actually being operated to reverse the c'onnections of the switch operating motor M.

In order to restore the switch to its normal position, the lever L is returned toward its N position toclose contacts NB. Current then flows from terminal X through an NB contact on the lever, conductor 10, winding 57 of circuit controller S, wire 70, contact 81-82 of circuit controller S, wire 83, asymmetric unit 62, wires 84 and 67, winding 59 of circuit controller S, wires 66 and 85, asymmetric unit 60, conductor 11 and a second NB contact on the lever back to terminal Y. The current thus supplied to winding 59 of circuit controller S flows in the same direction as before through this winding, but the direction of flow of current in winding 57 is reversed. The circuit controller S is, therefore, reversed, opening contact 81-82 and discontinuing the supply of current to the circuit controller. The closing of contacts 86-87 and 89-90 completes a circuit over which current flows from terminal X through contact 86-87, wire 76, field 2 of of motor M, wires 7 5 and 88, contact 89-90, wire 91, contact 3-5 operated by switch A, wire 80, and armature 1 of motor M back to terminal Y The motor M is, therefore, operated to restore the switch A to its normal position. When this movement of the switch has been completed, contact 3-5 opens and so disconnects the motor from its source of energy. a

An indication relay K may be controlled jointly by contacts on the circuit controller S and by contacts operated by the switch A so that this relay can be energized only when the switch and the circuit controller S occupy corresponding positions. For example when the switch A an d the circuit controller S both occupy their normal positions, in which they are shown in the drawing, current flows from terminal X over contact 104-105 of the circuit controller S, wire 103, contact 99-102 operated by switch A, wire 98, winding of relay K, wire 97, contact 95-101 and back to terminal Y If circuit controller S is reversed and it switch A also occupies its reverse position, relay K is energized in the other direction by current which flows from terminal X over contact 92-93, wire 94, contact 95-96 operatedby switch A, wire 97,

winding of relay K, wire 98, contact 99-100.

and backto terminal Y I It is understood, of course, that relay K in the drawing may be used to control a suitable lever locking device, such as that disclosed in my eo-pending appli a n hereinzbef re reterred Al hcugh I ha h rein hown. an

scribed only one form of electrical controlling apparatus embodying my invention, it is understood that various changes and modifications may be made therein within the scope of the appended claims without departing from the spirit and scope of my invention.

Having thus described my invention, what I claim is:

1. In combination, two windings, 'ailway switch controlled in accordance with the relative direction of the currents supplied to such windings, two asymmetric units connected in series across one such winding, a first conductor connected. with the common terminal of: such two units, a second conductor; means controlled by the two windings for at times connecting the second conductor with one terminal of such one winding through the other winding and a third asymmetric unit, and for at other times connecting the J-ond con-- ductor with the other terminal of such one winding "through the other winding and a fourth mmetric unit; and a manually operable ve-r for reversibly supplying cur rent to said conductors.

2. In combination, two windings, contact mechanism controlled in accordance with the relative direction of the currents supplied to such windings, two asymmetric units connected in series across one such winding, :1 first conductor connected with the common terminal of such two units, a second conductor; means controlled by said contact mechanism for at times connecting said second conductor with one terminal of such one winding through the other winding and a third asymmetric unit, and for at other times connecting the second conductor with the other terminal of such one winding through the other winding and a fourth asymmetric unit a manually operable lever for reversibly supplying current to said conductors, and a railway switch controlled by said contact mechanism.

3. In combination, two windings, contact mechanism controlled in accordance with the relative direction of the currents supplied to such windings, twoasymmetric units connected in series across one such winding, :1 first conductor connected with the common terminal of such two units, a second conductor: means controlled by said? contact mechanism for at times connecting the second conductor with one terminal of such one winding through the other winding and a third asymmetric unit, and for at other times connecting the second conductor with the other terminal of such one winding through the other winding anda fourth asymmetric unit a manually operable lever forreversibly supplying current to said; conductors, a

railway switch, a circuit'controller controlled by saidswitch, and a motor controlled by said contact mechanism and by said circuit controller for operating the switch.

4. In combination, two windings, contact mechanism controlled in accordance with the relative direction of the currents supplied to such windings, two asymmetric units 'connected in series across one such winding, a first conductor connected with the common terminal of such two units, a second conductor; means controlled by said contact mechanism for at times connecting the second conductor with one terlnlnal of such one winding and a third asymmetric unit, and for at other times connecting the second conductor with the other terminal of such one winding through the other winding and a fourth asymmetric unit; a manuallyfoperable lever for reversibly supplying current to said conductors, a railway switch, a circuit controller controlled. by said switch, a motor controlled by said contact mechanism and by said circuit controller for operating the switch, and lock ing means for said levercontrolled by the contact mechanism.

5. In combinatio11,"two windings, contact mechanism controlled in accordance with the relative direction of the currents supplied to such windings, two asymmetric units connected in series across one-such winding, a first conductor connected with the common terminal of such two units, a second conductor, means controlled by said contact mechanism for at times connecting the second conductor with one terminal of such one Winding and a third asymmetric unit, and for at other times connecting the second conductor with the other terminal of such one winding 7 through the other winding and a fourth asymlnctric unit, a manually operable lever for reversibly supplying current to said conductors, a railway switch, a circuit controller controlled by said switch, a motor controlled by said contact mechanism. and by said circuit controller for operating the switch, and locking means for sald lever controlled by the con i tact mechanism and by the switch. In testimony whereofI afiix my signature.

. S. YOUNG.

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