US900131A - Switch stand and lock. - Google Patents

Description

f iosEPH' WALTER roRP EiYoF,"touisvrttn, KENTUCKY.

' 'i wiapasi ia a ai oc This invention relates to means for locking railroad switches; and the objects of my improvement are, to provide a railroad switchck which cannot. be removed or detached from the body of the switch-stand, to provide a railroad switch lockfrom which the key cannot be removed except when the switch is fully locked, thus preventing switches from being left unlocked and liable to be shifted by persons withoutauthority to do so, to 'facilltate placing the responsibility for irregularity in the position of switches, and to rovide a combined switchstand and lock which may be cheaply manufactured. These objects I accomplish by means of the mechanism shown in the accompanying drawing, in which:

Figure 1 is a frontelevation; Fig. 2, a transverse section; Fig. 3, a section on line B; Fig. 4, a top plan View; Fig. 5, a perspective view of the locking bolts and dividing plate; and, Fig. 6, a perspective view of the key. r v

Similar reference numerals refer to similar parts. throughout the several views of the drawing.

The lower section 1 and the upper section 2 constitute the usual case of the switch-stand. The lever 3 and weight 4 are of the usual form and serve to throw the switch. Within the stand are the bevel gear 5 and bevel pinion 6, gear 5-being secured on the upright shaft and gear 6 secured'on the shaft with lever 3. Pinion 6 is provided with a hub 17 of considerable diameters The hub 17 is provided with notches 18 and 19 diametrically arranged and in such position that when the switch is open one of the notches is up and when it is c osed the oppositenotch is up. On the top of section 2 is an integral In or pillar 7 cored vertically to receive the bolt of the lock which consists-of'flat pieces of steel 10 and 11 with a strip of brass 12 be- -tween them. The bolt is notched at 13 to receive thekey. The bolt 1011 is surmounted by a spring 14, and the spring by a cap 8 which covers 'the'upper end of the opening and is riveted in by means of a trans- Verse rivet 9. A key-hole 16 is provided in A, p .s safi sgm i Letters Patent. 3 Application filed cabbage, 19,07. Seria1 Noh399,331.

comprising a casing,

mental "ea. c, 1908 pillar 7'. The pillar"? preferably extended downward soas to form bearing-lugs 20 and 21' toserve as a bearing for hub 17 to take'the side thrust incident to the resistance of bolt 1O 1'l against the sides of keepers 18 and19, and thusprevent bending the shaft or over straining the outer bearing of the shaft. This construction also adds steadiness and security to the switch by preventing lost motion.

It will be understood that key 15 may be inserted in key-hole 16 and turned to raise bolt 10 1-1, butwhen the key has been turned sufficiently to raise the bolt to its up or limit itsbit comes in contact with the wall of pillar 7 and cannot be turned further and will therefore hold the bolt in the elevated position. The key cannot be removed while the "UNITED"STATESMPATENT, OFFICE.

bolt is in the elevated position, and in order to remove the key the, bolt must be lowered. The bolt cannot be lowered unless either notch 18 or 19 in hub 17 is brought into r'egister therewith, or in other words, when the switch is either entirely open or entirely closed. 1 This prevents the switch-man from leaving the switch only partly open or partly closed without leaving his key, by which he may be identified.

Having thus described my invention so that any one skilled in the art pertaining thereto may make and use it, I claim:

1. A combined switch-stand and lock, a lever for throwing the switch, a shaft, a hub ripheral keeper notches on said shaft, a vertically arranged socket for a lock-bolt in said casing, and a slidably mounted lock-bolt mounted in said socket and adapted to be shot into the keepers in said hub.

2. A look for railroad switches, comprising in combination with a switch-stand having a shaft for throwing the switch, a hub provided with suitably located keepers in its periphery, a vertical socket for the lock-bolt provided in the casing of the switch-stand adj acentsaid hub, a bolt mounted loosely in said socket and adapted to be shot into one of said keepers in said hub, and a bearing for said hub in said casing.

3. A look for railroad switches, comprising a socket for a bolt in the casing of the switchstand, a bolt mounted insaid socket, said bolt consisting of a plurality of bars with a plate between, said bars being adapted to receive the bit of a key, a key having a ward to straddle said plate, a key-hole in the provided with peswitch-stand, the parts of the lock being so arranged that when the bolt is released from a keeper the bit of the key impinges on the wall of the socket, so that it cannot be turned in either direction and cannot be removed till said bolt again fully engages a keeperin said hub.

4. In a lock for railroad. switches, a stationary pillar 7 forming the casing for a bolt, a com osite bolt 101112 loosely mounted in sai pillar 7, said pillar 7 provided with a key-hole 16, a keeper-member 17 provided with keepers 18 and 19, a key 15, said bolts being notched to receive the bit of said key, all so arranged and cooperating that when I said bolt is released from its keepersby means JOSEPH WALTER TORPEY.

Witnesses:

D. B. MEDANIOH, MINNIE C. ROLLWAGE.

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