US1120529A - Switch-stand. - Google Patents

Description

S. F. PHILIPS.

SWITCH STAND.

APPLICATION FILED SEPT. 20, 1913.

1, 1 20,529, Patented Dec. 8, 1914,

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S. F. PHILIPS.

SWITCH STAND. APPLICATION FILED 813N220, 1913. 1,1 20,529. Patented Dec. 8, 1914.

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UNTTED STATES FATEN T @FFTQFS.

SMITH F. PHILIPS, OF EL IPASO, TEXAS.

SVJIT GEE-STAND.

menses.

Application filed September 20, 1913.

To all whom it may concern Be it known that I, SMITH F. PHILIPS, a citizen of the United States, and a resident of El Paso, in the county of El Paso and State of Texas, have invented a new and useful Improvement in Switch-Stands, of which the following is a specification.

My invention is an improvement in switch stands, and has for its object to provide a stand of the character specified, having mechanism for throwing the switch, and having in addition signal mechanism, so arranged and connected to the operating mechanism for the switch, that when the switch is in closed and locked position, the signal will be at safety, and wherein the signal operating mechanism is so connected with the switch operating mechanism that the switch operating mechanism cannot be operated to open the switch, until the signal is set at danger, and wherein the signal cannot be moved into the safety position, until the switch is returned to closed and locked position.

In the drawings :-Figure l is a perspective view of the improved stand. Figs. 2, 3 and 4 are transverse vertical sections taken substantially on the line 22 of Fig. 6, and showing the parts in different positions, Fig. 2 showing the parts with the switch open, Fig. 3 showing the parts with the switch closed and the operating lever raised, and Fig. 1 showing the operating lever closed. Fig. 5 is a section on the line 5-5 of Fig. 2, looking in the direction of the arrows, Fig. 6 is a front view of the box frame partly in section, Fig. 7 is a view of the box frame at right angles to Fig. 6, Fig. 8 is a top plan view of a portion of the base of the stand, and Fig. 9 is an enlarged detail of a portion of the signal mechanism.

The present embodiment of the invention comprises a switch stand, consisting of a table 1, supported by the usual legs 2, and having journaled in vertical position at the center thereof the switch operating shaft 3. At its lower end, the switch operating shaft is provided with a lateral arm 1, which is connected with the switch points (not shown) in the usual manner.

An arm 5 is provided with a bearing 6 at one end, and the said bearing engages the shaft 3 between the lower end of a sleeve 7 journaled on the shaft and the table, and is pinned to the shaft as indicated at 3 The arm is longitudinally slotted or recessed at Specification of Letters Patent Patented Dec. 8, 1914..

Serial No. 790,918.

its outer end as indicated at 8, and the switch operating lever 9 is arranged with one of its ends 1n the slot or recess 8, and is pivoted to the arm by means of a pivot pin 10.

The lever is provided with the usual perforated locking lug 11, and the arm is transversely grooved on its upper face, near the inner end of the slot as indicated at 12, the said groove being provided for engagement by a pin 13, arranged transversely of the inner end of the lever. When the lever is in alinement with the arm, the said pin 13 is so arranged with respect to the groove that it will engage the bottom of the groove when the lever is in alinement with the arm, and in position to throw the switch, to prevent the further upward movement of the lever.

The table 1 is provided with the usual radial recesses or notches 14; and 15, for engagement by the lever 9, to hold the shaft 3 with the points in open or closed position. hen the lever engages the notch 14, the switch is in closed position, while when the lever engages the notch 15, the switch is in open position. A standard 16 is secured to the table, and extends upwardly therefrom, and a box frame 1'7 is arranged at the upper end of the said standard.

The box frame has bearings at its ends for the sleeve '7, and for the upper end of the shaft 3, and the standard is provided with an extension plate 18 at the table, the said plate being secured to the table by means of a lateral flange 19, the said flange lapping upon the upper face of the table and being secured thereto by means of screws 20 or the like.

At the end remote from the standard, the extension plate is provided with a lateral lug 21, having a vertical slot 22 for engagement by the locking lug 11 of the switch lever. When the lever is in engagement with the recess or notch 14:, the perforated locking lug 11 will pass through the slot 22, and

the ordinary padlock may be engagedwith the opening of the lug.

An angle plate consisting of portions 23 and 24: is connected with the table 1, near the notch or recess 15, the portion 23 of the said plate being secured to the said table, and the portion 24 thereof extending perpendicular upward from the table parallel with the notch or recess 15.

The portion 24: of the angle plate is provided with a lateral lug 25, and the said lug has a vertical slot 26 for receiving the locking lug 11 of the operating lever when the switch is in open position, and it will be evident that the switch may be locked in either open or closed position.

A bearing block 27 is secured within the box frame 17 near the upper end thereof, by means of a screw 28 or the like, and the uper end of the sleeve 7 extends through the bearing block, and a pinion 29 is secured to the sleeve above the block. a

A semaphore or signal arm 30 is pivoted at one end within the box frame, by means of a screw 31, which passes through the adjacent side of the box frame, through the arm and into engagement with the bearing block 27, before mentioned.

The signal or semaphore arm when in safety position is concealed and covered by the adjacent side of the box frame, and the said arm is provided with a segment 32 of gear teeth on its inner face and at its pivoted end, the said segment having the screw 31 as a center.

The teeth of the segment 32 mesh with the teeth of the pinion 29. When the semaphore arm is swung into danger position, the pinion and the sleeve 7 are oscillated in one direction, while when the semaphore arm is swung into safety position, the sleeve and the pinion are oscillated in the opposite direction. The sleeve or pinion is provided with an upward extension 50, which extends above the upper end of the box frame.

A threearmed rock lever is pivoted to the standard near its connection with the table, the said lever comprising arms 33 and 34 in alinement, and an arm 35 extending at approximately a right angle to the arms 33 and 34:. p

A link 36 connects the arm 33 of the threearmed rock lever, to a lateral lug 37 at the inner end of the semaphore arm, and another link 38 connects the arm 34 with one of the arms 39 of an elbow lever. The elbow lever is pivoted at 40 to a bearing bracket 41, on the base 42 of the switch stand, and the other arm 43' of the elbow lever is connected by means of a link 44- with one of the arms &5 of another elbow lever, the said lever consisting ofthe arn t5, and an arm 16 extending at approxhnately a right angle to the arm 45.

The arm 35 of the three-armed rock lever is received within a recess or slot 47 in one end of a block or plate 48, arranged to slide on the inner face of the extension plate 18,

and the other end of the said block is provided with an opening 49 into which extends one end of the pin 13 of the operating lever 9, when the said lever is in position to engage the notch 14 of the table.

hen the operating lever 9 of the switch shaft is swung into engagement with the notch 14 of the table, the block or plate 48 is moved toward the locking lug 21 of the extension plate, and the three-armed rock lever is swung in a direction to move the semaphore or signal arm into safety position, while when the said lever 9 is swung into alinement with the arm 5, and out of engagement with the notch 1 1 of the table, the said three-armed lever is moved in a direction to move the signal or semaphore arm into danger position.

W hen the operating lever is in alinement with the arm 5, the said lever and the arm may be swung toward the notch 15 without interfering with the block or the threearmed rock lever. turned toward the notch 14, the cross pin 13 will engage the opening 49 of the block, and the said pin will engage the said opening slightly before the lever is in position to engage the notch 1%. In other words, the lever 9 cannot be dropped into engagement with the notch of the table without moving the block in a directionto cause the three-armed rock lever to move the semaphore or signal arm into the box frame. The link 38, before mentioned, passes through a slot or opening in the table.-

r-i locking pin 51 is pivoted to the free end of the arm 4:6 of the last-named elbow lever, and the said locking pin is adapted to pass through registering openings 52 in a casing connected to the switch stand base at one side thereof, and an opening 54% in a plate 55-, which is slidable into and out of the casing.

The operation of the device is as follows :Vi hen the switch operating lever 9 is in engagement with the slot 1d of the switch table, the semaphore arm 30 is within the box frame and if there is a signal lamp on the extension 50 at the top of the box frame, the said lamp will show a white light or green, as the case may be, indicating that the switch is closed and that the track is safe. When the lever 9 is swung upwardly into alinement with the arm 5, no change takes place in any of the parts, except in the said lever. When however, the lever is swung out of the notch or recess 14, the

lock 4-8 is moved in a direction to swing the three-armed lever 333 l35 in a direction to draw the link 36 downward and to swing the semaphore arm into danger poblock 48, just before the lever comes into- When the lever is reregister with the notch 14, and when the said lever is in register with the said a notch, the pin 13 will be fully engaged with the opening 49. To return the lever 9 to locking position, that is, to cause the lug 11 to pass through the slot 22 of the locking lug 21, it is necessary to swing the said lever downwardly as shown in Figs. 1 to 6.. The downward swinging movement of the lever moves the block 48 toward the lug 21 and moves the link 36 in a direction to swing the semaphore arms 30 into the box frame. The same movement engages the locking pin 51 from the plate 55, and swings the lantern on the extension 50 to safety position, if there be a lantern on the said extension. The plate is connected with the switch points, and when the said points are set for the main line, the pin 51 looks the plate and the points, so that should the switch stand be torn from its position by a swinging door or other obstruction, the switch points will remain locked, and the main track will remain clear.

It will be evident from the description, that when the switch is closed, that is when the points are set for the main line, the said points cannot be set for the side track, without first setting a signal in danger position, and that the operating lever for the switch cannot be locked with the pins in either open or closed position, without setting the signal when the points are open, or returning the signal when the points are closed.

I claim:

1. In a switch stand, the combination with the operating shaft j ournaled in vertical position in the stand and connected with the points for moving the points when the shaft is oscillated, of an arm rigidly connected with the shaft at the table, a lever pivoted to the arm for swinging movement into and out of engagement with the notches of the table for holding the shaft with the points in open or closed position, a sleeve journaled on the shaft above the table, a standard secured to the stand and extending above the same and arranged with a box frame at its top, said shaft and sleeve being journaled in the frame, a semaphore arm pivoted at one end in the box frame at the top thereof, said sleeve having an extension above the box frame for receiving a signal lamp, a connection between the semaphore arm and the sleeve for oscillating the sleeve when the arm is swung into and out of the box frame, a three-arm lever pivoted to the standard, a link connecting one of the arms of the lever with the semaphore arm, a block connected with another arm for sliding movement on the table adjacent to the notch, a cross pin at the inner end of the lever, the arm having a groove for receiving the pin to limit the upward movement of the lever, said block having an opening for receiving the pin when the lever is in register with the notch with the points closed.

2. In a switch stand, the combination with the operating shaft journaled vertically in the stand and connected with the points for moving the same when the shaft is oscillated, of a lever mounted to swing into and out of horizontal position and connected with the shaft for oscillating the shaft, said stand having notches for receiving the lever to hold the points open or closed, a box frame supported above the stand, a signal arm pivoted within the frame for swinging movement into and out of the frame, a three-arm lever pivoted above the stand and having one of its arms connected with the signal arm for moving the said arm, a bar connected with the points, a guide in connection with the stand, the bar being movable in the guide, said guide and bar having openings registering when the points are closed, a locking pin for engaging the openings, a connection between the locking pin and another arm of the three-armed lever, a block slidable on the stand adjacent to the notch thereof and connected to the third arm of the lever, said lever having a cross pin and the block an opening for engagement by the pin when the lever moves into register with the said notch, the third arm of the lever being connected to the block, said block being moved by the lever when it engages with the notch in a direction to engage the look ing pin with the openings and to swing the signal arm into the box frame.

SMITH F. PHILIPS. Witnesses A. H. Gonos'rnm, R. ATTERBURY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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