US1163631A - Railway-switch or the like. - Google Patents

Description

C. 0. ANDERSON.

RAILWAY SWITCH OR THE LIKE.

APPLICATION FILED OCT. 5, I909. 1,163,631. Patented Dec. 14, 1915.

6 SHEETS-SHEET 1.

COLUMBIA PLANOGRAPH cu..wAsH|NGToN. n, c.

C. O. ANDERSON.

RAILWAY swHcHpR THE LIKE.

Patented Dec. 14, 1915.

6 SHEETS-SHE T 2 APPLICATION FILED OCT. 16, I909- IHHHHHIII I Mum C. 0. ANDERSON.

RAILWAY SWITCH OR THE LIKE.

Patented Dec; 14, 1915.

s susns-suser-m C. 0. ANDERSON.

RAItWAY SWITCH OR THE LIKE.

APPLIC Tl 1,163,631. A Hm Patented Dec.14, 1 915.

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RAILWAY SWITCH OR THE LIKE.

' APPLICATION FILED OCT-16, [909. I 1,163,631. Patented Dec. 14, 1915.

6 SHEETSSHEET 5.

l EI-4 55 56 4 .53 a 71 J Wages .2 6 246/2637 COLUMBIA PLANOGRAPH Cc., WASHINGTON. D. c.

C. O. ANDERSON. RAILWAY SWITCH OR THE LIKE.

APPLICATION FILED OCT. 16, I909 1,163,631. Patented Dec. 14, 1915.

6 SHEETSSHEET 6.

\ZOLUMIXIA PLANOGRAPH CO.,WASHINOTON. D. c.

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CHARLES O. ANDERSON, OF OMAHA, NEBRASKA, ASSIGNOB OF SEVEN-TENTI-IS TO A. T. AUSTIN AND TI-LREE- TENTHS TO WILSON A. AUSTIN, BOTH OF OMAHA,

NEBRASKA.

Specification of Letters Patent.

PatentedBec. it, 1915.

.Applieation filed October 16, 1909. Serial No. 523,078.

To alliohom it may concern:

Be it known that I, CHARLES O. ANDER- SON, a citizen of the United States, residing at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Railway- Switches or the like, of which the following is a description.

My invention belongs to that class of devices known as railway switches or the like, and refers particularly to improved mechanism for operating and controlling a railway switch or derail, which mechanism may be controlled or o erated from a particular or central controlling point which may be proximate to, or at some distance from the switch or derail to be controlled.

The preferred construction shown and described is a self adjusting electrically operated or controlled switch and is an improvement on mv .prior application, Serial No. 486.375 and the application of W'ilson A. Austin, filed October 14, 1909, Serial No. 522.553, andhas among its objects the production of a simple. etlicient, safe and satisfactory device of the kind described for use wherever it may be found applicable. In the preferred construction the switch may be reversed during its operation and at all times is automatically maintained in a safe condition. 7

To this end my invention consists in the no el construction, arrangement and combination of parts herein shown and described, and more particularly pointed out in the claims.

Referring to the drawings in which the preferred form of device is shown. Figure 1 is a plan view of a switch and operating mechanism therefor, a part of the operating mechanism inclosed. Fig. 2 is a top elevation of a portion of the same with the cover 15 remo ed. Fig. 3is a cross sectional view taken substantially on line 3 3, of Fig. 2. Fig. 4 is a top elevation of a portion of the controlling mechanism. Fig. 5 is a secti al view taken substantially on line 5-5 of Fig.

4. Fig. 6 is a sectional view taken substantially on line 6-6 of Fig. 1. Fig. 7 isaproective view of the drum surface 31." Fig. 8 is a side elevation of the pole changer. one side of the casing thereof removed. Fig. 9 is a top elevation of'the same withcover removed. Fig. 10 is a sectional view taken substantially on line 10-1O of Fig. 9. Fig.

11 is a longitudinal sectional view taken substantially on line 11-11 of Fig. 9. Fig. 12 is a view and elevation of a portion of the casing 13 showing one of the lugs 54 retaining pole changer casing 53 in position, and Fig. 13 is a diagrammatic view of the preferred form of wiring.

Referring to the drawings, the usual form of railway switch is shown. comprising stock rails 1, 2, 3 and 4 and the movable switch parts or points 5 and 6 with my improved form of mechanism applied thereto. It may be assumed for convenience in describing the device, that when the switch parts 5 and G are in the positions shown that thev are in normal position, so that a train will tra el upon the stock rails 1 and 3 to the stock rail 2 and switch part 6, etc. If theswitch is opened or the parts in reverse positions. then the train will pass on the stock rails 1 and 3 to the stock rail 4 and switch part 5. etc. The parts of the switch itself being fullv described in my prior application mentioned, it will be necessary to onlv briefly describe the several parts here. The rails are supported upon suitable ties 7 the switch points 5 and 6 being prefer ably connected bv the spreader bars 9 and 10. Plates 22 and bolts 28 are shown for secur ng the switch points and spreader bars to ether. The spreader h rt) is provided with an extension 11 to which is secured the throw rod or bar 19.. connec ed with suitable operating mechanism therefor. In the preferred construction the throw rod is connected with an electric motor, or its eouivalent. the operation or movement of the switch points being br ught about by driving the motor in one di ection or the o her to move the parts to the desired position. The switch points are also connected b a suitable rod 16 or the equivalent to suitable mechanism cooperating with the motor, which mechanism is hereinafter desc ib d. The norm llv immovable outer stock rail 1 is also provided with a rod 17 secured thereto and extending within the casing 13.controlling the mechanism mentioned and hereafter described. It may be mentioned at thistime, ho ever, that while the stop rails are normally immovable. in case of their accidental displacement. as for example by spreading, they effect a change in the controlling mechanism, ashereafter fully described. The

casing l3 1s preferably provided with a removable cover and is secured to the ties through the extended part and preferably to the stock rail 3 by means of bolts or bars 19 and suitable nuts 20 or the equivalents for the purpose. It is of course obvious that in the case of a derail cnly one movable rail part would be required.

The rod 12 is connected or secured to a rod 24 extending within the casing, by means of a suitable pin12 or the equivalent for the purpose, so that the two are secured together and form the throw rod for the switch points. The rod 21 is suitably supported within the casing 13 and operatively connected with the motor shaft 27 in any suitable way, as shown by means of a gear 26 arranged upon the rod 24 and free to rotate thereon, which gear is prevented from moving longitudinally with the rod by engaging suitable shoulders of the casing. The gear 26 cotiperates wlth the gear orv pinion 27 which is preferably secured to the shaft 27 by means of a yielding cone clutch 25 (see Fig. 3)-25 being a spring. As shown, the casing 13 is extended as at 13 to suitably support the end of the shaft 27 0f the motor contained within the casing 14. It is of course obvious that the several parts and members mentioned may be modified as desired, or that any other suitable connecting mechanism or coupling may be arranged to operatively connect the throw rod and the motor shaft.

As has been before stated, the throw rod is operated by means of anelectric motor, suitable means being provided for controlling the motor; Referring particularly to Figs. 4, 5, 6 and 7, as Well as to Figs. 2 and 3, the rod 16 is extended Within the casing and provided with lent. Any suitable means may be employed to support the free end of the rod, an extension 39 on the member 30 serving for the purpose, suitable guides 40 retaining the rod against displacement. The part or member 30 is extended as at 30 and supports a suitable drum 31, which is preferably provided with a plurality of contact members 42, 45, 48 and 51, arranged substantially as shown in Fig. 7, the drum being provided with a supporting shaft 32. A gear 33 or the equivalent is preferably secured on one end of the. shaft 32 and arranged to mesh and cooperate with the end 28 of-the rod 16, so that as the switch points are moved from one position to the other the drum 31 will rotate.

As the switch points move out to the reverse positions the drum 31 will be rotated in the direction indicated by the arrow A in Fig. 3, and as the switch parts or points are thrown back to the normal position the drum 31 will be rotated in the opposite direction from that indicated by the arrow mentioned. The rod 17 is also extended within the easing and provided With a rack 29. Prefera rack 28 or the equiva-' supporting rod 59.

ably at 34 which is an extended part of the part 30, are arranged a plurality of what may be termed brushes 47, 49, 50 and 52, arranged to cotiperate with the contact pieces 48 and 51 as hereinafter described. A movable part 35 is provided with brushes 41, 43, 44 and 46, arranged to contact and cooperate with the contact pieces 42 and 45. As shown, the part 35 is pivotally supported upon the shaft 32 and is provided with an extended arm or sector 38 provided with teeth adapted to coiiperate with the rack 29 on the rod 17 so that as the rod 17 or the casing 13 are moved relative to one another, the relative positions of the brushes 41, 43, 44 and 46 and the drum 31 will. be changed. The purpose of this will. be more clearly understood from a description of the operation of the device. The several brushes mentioned are electrically connected to the motor or mechanism cotiperating therewith. It is of course obvious that any equivalent means may be provided for that shown to control the operation of the drum and brushes or that these several parts may themselves be modified if so desired.

In controlling the motor I also preferably use any suitable form of circuit breaker or pole changer. A very satisfactory form of circuit breaker in my preferred construction is most clearly shown in Figs. 8, 9, 10 and 11. As shown in these figures, the pole changer comprises a suitable casing 53 containing solenoids 55 and 56. As shown, the casing 53 is made removable from the casing 13, the same being retained in position by suitable lugs 54- on one member as shown on casing 13, cotiperating with a suitable depression in the opposite casing. The solenoids are provided with suitable core members 58 preferably arranged on a suitable The core members 58 carry a plurality of contact members 7 9, 80, 81, 82, 83 and 84 insulated from each other, and as shown, carried by an extended part 60 of the core. The part 60 may be made of insulating material.

Suitable contact members 61, 62, 63, 64, 65, 66, 69 and 70 are preferably arranged to contact with the contact members 79, 80, 81 and 83 when the member 60 is in the position indicated in the figures. As shown, they are arranged on a suitable part a preferably of insulating material. Suitable contact members 73, 74, 75, 76, 67, 68, 71 and 72 are preferably carried by the part b and arranged to contact with the contact members 79, 80. 82 and 84 when the member 60 is at the other end of its travel. Contact members 62 and 75, 63 and 74, and 64 and 76 are preferably electrically connected by means of suitable conductors 87, 88 and 89 respectively. It is of course understood that the several contact members carried by the parts "a and 'b are electrically connected to the other parts of the device. As shown, the casing 53 is provided with a plurality of contact members or buttons 85, to which the several members heretofore mentioned are connected, which buttons 85 are arranged to coiiperate or contact with suitable contact members 86, which are suitably electrically connected to the motor and other parts of the system.

It is believed that the operation of the device can be best explained by referring to Fig. 13, in which the preferred wiring the device is shown. This figure shows diagrammatically what has been heretofore described, the various parts bearing the same reference characters as the detailed views illustrating the same. It should be noted that the apparatus at the tower may be of any suitable form, a double throw switch S being shown for opening and closing the several circuits, the preferred construction comprising an arrangement in which only one controlling circuit may be closed at the same time. The indicating apparatus at the tower for indicating the condition of the switch points is indicated diagrammatically in Fig. 13 by the coil 108, it being of course understood that any suitable apparatus may be used which is applicable for the purpose.

The reference character B indicates a battery, dynamo or any equivalent source of power.

Referring to Fig. 13, T represents the tower ,or point from which the apparatus is controlled, 101, 93 and 112 representing three wires from the tower to the switch mechanism. Assuming that the switch points are as shown in Fig. 1, which has-been termed the normal position, and it is desirable to throw them to the reverse position. The points being in the position shown in Fig. 1, brushes 47 and 19 being in contact with contact member 18 and brushes 11 and 13 being in contact with the contact member 12. member 60 in the position shown by the full lines in Fig. 13 or in the positions shown in Figs. 8, 9, 10 and 11, the switch S, is thrown as indicated by the full lines in Fig. 13. A circuit is then formedas follows: B, 90, 91, 92, 98, 91, 95, 61, 79, 62, 87, 75, 96, armature A, 97, 74c, 88, 63, 80, 64, 89, 76, 98, F, (fields of motor) 99, 100, 101, 102 and B, causing the motor to rotate, thereby driving pinion 26 and longitudinally moving rod '12 throwing the switch points to the opposite side or reverse position. At the end of the travel of the switch points the drum 31 is rotated in the direction indicated by the arrow A in Fig. 3, bringingup the contact point 45 so that a circuit is formed as follows: B, 90. 91, 92, 93, 91, 106, 11, 4'5, 46, 101, 69, 83, 70, 105, solenoid 56, 106, 100, 101, 102, B, energizing the solenoid 56and drawing the switch member 60 over to the position indicated by the dotted lines,breaking been moved up to the safe position. manner of the motor circuit between members 61 and 62 and 63 and 61 as well as breaking its own circuit at 69 and 70. The indicating circuit may be traced as follows: A, 96, 75, 80, 76, 96, F, 99, 100, 101, 107, 106, 109, 110, 111, 112, 118, 114:, 73, 79, 71, 97 and armature A, the motor driven by its momentum acting as a generator, thus operating the relay 108 andindicating that the switch points have To throw the switch points back to their normal position, it being understood that the drum has been rotated as mentioned so that brushes 41 and A6 are in contact with the member 15 and brushes 50 and 52 in contact with contact member 51, 60 being in the position indicated by the dotted lines, the

switch S is thrown to the position indicated by the dotted lines in Fig. 13. A circuit is then formed as follows: B, 90, 91,

60, 76, 96, F, 99, 100, 101, 102, B. This causes the motor to operate and throw the switch points to the left or back to the positions shown in Fig. 1, the movement of the switch points rotating the drum 31 in a direction reverse to that indicated by the arrow in Fig. 3, so that the contact member 18 is brought back as indicated in the figures. When the contact member 48 closes or makes 9 contact between the brushes 17 and 19 a circuit is formed which may be traced as follows: B, 90, 91, 115, 112, 116,17,16,19, 117, 67, 82, 66, 116, solenoid 55, 119, 120,121, 101, 102 and B, energizing the solenoid 55 and drawing member 60 back as indicated in the drawings, breaking the circuits mentioned between contact members 73 and 74, 7 5 and 76, and 67 and 68, stopping the motor. The indicating circuit may be traced as follows: A, 97, 71, 66 63, 60, 61, 69, 76, 96, F, 99, 100, 101, 107, 106, 109, 110, 122, 93, 91, 95, 61, 79, 62, 87, 75, 96 and armature A, the motor driven by its momentum acting as a generator, thus operating the relay or indicating mechanism. 7

If for any reason the switch points are prevented from traveling their full distance, bringing them to a safe position, the motor may be reversed and the switch turned to the starting position. Assuming that the switch S has been thrown to the full line position but the switch points are prevented from reaching the limit of their travel owing to some obstruction or for any 3 '56, 126, 106, 100, 101, 102 and 13, thus energizing solenoid 56 and drawing 60 to the points re- 7 dotted position closing the reverse circuit, so that the switch points are returned back to their normal position at the same time the circuit mentioned breaks itself. On the other hand, if it is desired to reverse the switch points when traveling from the reverse position to the normal, 60 being in the dotted position, 41 and 43 contacting with 42, and 50 and 52 contacting with 51,, S

being as indicated in the dotted lines, throw 6 S to the full position, thus giving a circuit as follows: B, 90, -91, 92, 93, 127, 41, 42, 43, 128, 71, 84, 72, 129, solenoid 55, 130, 120, 121, 101, 102, and B. This energizes the solenoid 5 5, drawing 60 to its full position, closing the normal operating circuit and breaking at the same time its own circuit, so that the switch points are thrown back to the reverse position.

Assuming that the parts are in normal positions as shown in the drawings, the switch S being in the dotted position, from the last operation in returning the switch points to their normal position, if the switch points open up of their own accord, then 48 will move out of contact with brushes 47 and 49 and brushes 50 and 52 will be connected by the contact member 51, energizing the solenoid 56, and the circuit may then be traced as follows: B, 90, 91, 115, 112, 113, 123, 50, 51, 52, 121, 65, 81, 66, 125, 56, 126, 106, 100, 101, 102 and B. This draws 60 to the dotted position closing the reverse operating circuit so that the motor is automatically started and brings the point up against the stock rail. In the same manner if the stock rails 3-4 spread, the switch points remaining stationary, the drum will be rotated in. the same manner, giving the same result. That is, the switch points automatically follow the stock rail or, are maintained in safe position relative thereto. It should be noted that as soon as the points reach their limit of travel brushes 47 and 49 will be connected, drawing 60 back to its full position.

If the switch points are in the reverse position and move from the stock rail Or the .stock rail moves from them, then contact will be broken at 45 and brushes 41 and 43 will be connected by contact member In this case from the last operation of the mechanism switch S would be as shown in the full position, and member 60 in dotted position. Connecting brushes 41 and 43 at this time will give the following circuit: 13, 90, 01, 92, 93, 127, 11, 12, 43, 128, 71. 84, 72, 129, solenoid 55, 130, 120, 121, 101, 102, B. This will energize the solenoid 55 and draw 60 to the full position thereby closing the normal motor operating circuit and throwing the switch points up against the stock ra l. It is understood of course that where .the switch points move in this case the drum would be r t ed l gh ly, gi illg th s me efi'ect as moving the brushes. lVhen the switch points reach the limit of their travel brushes 44 and-46 will be short circuited by 45, thereby energizing solenoid 56 and drawing 60 back to its dotted position.

Having thus described my invention it is obvious that various immaterial modifications may be made in the form, arrangement, construction, combination of parts and wiring, without departing from the spirit of my invention, hence I do not wish to be understood as limiting myself to the exact construction, arrangement, combination of parts or uses shown, mentioned or described.

What I claim as new and desire to secure energy, a main switch and an electrically operated circuit breaker, operating circuits controlled by said main switch and said circuit breaker, controlling circuits for said circuit breaker, and means for controlling said last mentioned circuits, comprising a rotatable drum provided with a plurality of contacts thereon, means connected with the movable rail part for rotating said drum and a plurality of contact members to cooperate with the contacts on said drum, said last mentioned contacts connected with the normally fixed rail parts.

2. A device of the kind described and in combination, a railway switch comprising normally fixed stock rails and a movable cooperating rail part, means for actuating said movable part, comprising a motor operatively connected therewith, a source of energy, two operating circuits for said motor, an electrical circuit breaker operativelyarranged in said operating circuits, controlling circuits for said circuit breaker operatively connected thereto, said circuit breaker arranged to control said controlling circuits,

whereby the controlling circuits are broken simultaneously with the breaking of the operating circuits, controlling means for said controlling circuits, including switch elements provided with means for operatively connecting the same with the normally fixed and movable rail parts, saidelements electrically connected with said circuit breaker, and auxiliary controlling circuits for said circuit breaker, including elements electrically connected-therewith and said means connected with the fixed rails and movable rail part.

-3. In a device of the kind described and in .comoination, a switch, comprising normally fir dst e r il and m a l r il P means for. actuating said movable rail parts comprising a motor mechanically connected therewith, a source of energy and operating and controlling circuits therefor, said cir cuits comprising two operating circuits, two controlling circuits and two auxiliary controlling circuits, a master circuit controller for said circuits, an electrically operated circuit breaker included in said circuits, controlling mechanism mechanically connected with the lixed and movable rail parts, and provided with electric switch elements, said controlling circuits including and electri-c cally connected with said master circuit controller, with said circuit breaker and with said electric switch elements of the mechanism connected with the stock rails and switch parts, means for controlling said auxiliary circuits including said master controller, said electrically operated circuit breaker, and said electricswitch elements of said mechanismconnected with the stock rails and switch parts.

4. In adevice ofthe kind described and in combination, a 'ailway switch comprising normally 'lixed stock railsandua movable rail part, meansfor actuating said movable part comprising a motor operatively connected therewith, a source, of energy andv operating and controlling means for said motor, comprising mechanism connected with the stock rails and movable rail part and provided with electric switch elements, and two operating circuits including controlling means therefor, comprising a'manually operable circuit controller and an electrically operated circuit breaker, controlling circuits for said circuit breaker, including a portion of the switch elements provided on said mechanism connected with the stock rails and movable rail part, and a plurality of auxiliary controlling circuits for said circuit breaker, including another portiontof the switch elements provided on said mechanism operatively connected with the rail parts, and means cooperating,therewith for independently closing the auxiliary circuits upon the accidental separation of the rail parts by displacement of one of the-stock rails.

5. In a device of the kind described and in combination, normally fixed stock rail parts and movable switch parts, means for actuating said movable switch parts comprising an electric motor mechanically connected therewith, and operating and controlling means for said motor including a source of energy, a normal operatingcircuit anda controlling circuit for said operating circuit, having means arranged therein for closing the controlling circuit, and means for thereafter breaking the same when the point reaches the stock rail, including elements arranged in and a part of said circuits and mechanically connected withthe switch points and one stock rail, a reverse operating circuit for said motor, a controlling circuit therefor having means arranged therein for closing the same, and means therein for thereafter opening the same when the switch point reaches the opposite rail, said means including elements arranged inand a part of saidc rcuits, and mechanically connected with said last mentioned stock ail. V I v 6. In a device of the kind described and in combination, a railway switch comprising normally fixed stock rails and movable switch points, means for actuating said switch points, including an electric motor operatively connected therewith, and means for operating and controlling said motor, comprising a suitable source of energy, a normal operating circuit,a normally open controlling circuit for said operating circuit, means for'closing said controlling circuit,

including mechanism connected with the fixed and movable switch parts and provided with circuit controlling elements includedin said controlling circuit, and means for thereafter breaking the controlling circuit when the switch point reaches the stock rail at theend of'its travel in a predetermined direction, a reverse operating circuit and a normally open controlling circuit therefor, means for closing said last mentioned controlling circuit, including elements arranged in and a partof said circuit and provided on said mechanism connected with the movable and fixed switch parts, and means for thereafter breaking said last mentioned controlling circuit when the switch point reaches the opposite stock rail, said means including mechanism common to the other controlling circuit mechanism, a manually operable circuit, controller for saidoperating circuits, means for controlling said motor at any point between the limits of travel of the switch points, comprising a plurality of auxiliary controlling circuits for said normal and reverse operating circuits, and including said manually operable circuit controller, and said mechanism connected with the fixed and movable switch parts. ,7

7. In a device of the kinddescribed and in combination, normally fixed stock rails andmovable switch points, actuating means for said movable switch points including a motor operatively connected therewith, operating circuits for said motor, a circuit breakerarranged in said operating circuits, a plurality of controlling circuits for said circuit breakeiyand means cooperating with the stock rails and switch points for controlling said controlling circuits, said means including a movable member connected with the switch points, and cooperating parts connected with the stock rails, fornnnga plurality of switches, one of said switches arranged to close when the switch points' reach one stock rail, and another of said switches arranged to close when the switch points reach the other stock rail.

8. In a device of the kind described and in combination, a switch comprising normally fixed stock rails and movable switch points, actuating mechanism for said switch. points, controlling means for said actuating mechanism, said controlling means includ points, and means for controlling said actuating mechanism as desired, including a drum provided with a plurality of contact members thereon, said drum operatively connected with the switch points, a plurality of pairs of normally immovable contact members arranged to cooperate with the contact members on said drum, a portion of said normally immovable members mechanically connected with one stock rail, and a portion mechanically connected with the opposite stock rail.

10. In a device of the kind described and in combination, a switch comprising normally fixed stock rails and movable switch points, actuating mechanism for said switch points. and means for controlling said actu ating mechanism as desired, including a drum and means connected with the switch points for rotating said drum, a plurality of contact members arranged on said drum, a pluralityof cooperating members for said contact members, a portion of said last mentioned contact members connected with one stock rail and fixed relative thereto and a portion of said members mechanically connected with the other stock rail and movable circumferentially about said drum upon dis placement of its respective stock rail.

11. In a device of the kind described and in combination, a switch comprising normally fixed stock rails and movable switch points, actuating mechanism for said switch points, and means for crntrolling said actuating mechanism as desired, including a drum, means cooperating with the switch points for rotating said drum upon movement of the switch points, two pairs of contacts arranged on said drum, the contactsof each pair comprising one long, and one comparatively short part, the contacts of each pair arranged one in advance of the other with the short contact of one part substantially opposite one end of the long element of the other pair, and a pair of brushes for each element arranged to cooperate therewith, the brushes of one pair connected with one stock rail, the brushes of the other pair connected with the other stock rail.

12. In a device of the kind described and in combination, a switch comprising normally fixed stock rails and movable switch points, actuating mechanism for said switch points, and means for controlling said actuating mechanism as desired, including a rotatable drum provided with two pairs of contacts thereon, the contacts of each pair comprising a long and short contact arranged substantially side by side one in advance of the other with a short contact of one pair in lateral alinement with a portion of the long contact of the other pair, a pair of brushes for each contact and means connected with the switch points for rotating said drum whereby contact is made and broken between said brushes and contacts, means for connecting said brushes with the stock rails, said contacts and brushes so arranged that there is a contact at one end of thetravel of the drum between one short contact and its brushes and the opposite long contact and its brushes, contact between the two long elements of each pair and their respective brushes during the movement of the switch points and contact betweenthe other short element and its brushes and the opposite long contact and its brushes at the end of the 100 movement of the switch points at the opposite end of its travel.

13. In a device of the kind described and in combination, normally fixed and movable rail parts, actuating means for said movable 105 rail part comprising a motor operatively connected therewith, operating circuits and a source of energy therefor, a circuit breaker arranged in said operating circuits, a plurality of controlling circuits for said circuit 110 breaker, a plurality of auxiliary controlling circuits for said circuit breaker, and a plurality of switches arranged in said controlling and auxiliary circuits and means connected with the fixed and movable rail parts 115 for closing the switch in one controlling circuit at one end of the travel of the movable rail part, closing the switch in the other controlling circuit at the opposite end of the travel of sald movablerail part, opening the 129 switch in one of said auxiliary circuits at one end of the travel of said movable rail part and opening the switch in the other auxiliary controlling circuit at the opposite end of the travel of said rail part.

14; In a device of the kind described and in combination, a switch comprising normally fixed and movable rail parts, means for actuating the movable part comprising a motor operatively connected therewith, a 130 source of energy and operating and controlling means for said motor, comprising a main switch and an electrically operated circuit breaker and two operating circuits, controlling and auxiliary controlling circuits for said circuit breaker, means cooperating with said main switch and said circuit breaker, and including means cooperating with the fixed and movable rail parts for controlling said last mentioned controlling and auxiliary controlling circuits, said last named means comprising a rotatable drum operatively connected with the movable switch part and provided with a plurality of contacts, a plurality of cooperating brushes for said contacts, said contacts and Copies of this patent may be obtained for brushes forming substantially a plurality of switches, said brushes and contacts arranged so that one switch is closed at one end of the movement of said rail part and the other switch at the opposite end of the movement of said rail part, one switch closed at all times except at the end of said movement, and another switch at all times except at the opposite end of said movement.

In testimony whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

CHARLES O. ANDERSON.

Witnesses:

\V. A. AUSTIN, A. XV. MoCLUnE.

Washington, D. C.

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