US1060796A - Switch. - Google Patents

Description

L. B. THOMAS.

SWITCH. APPLICATION FILED NOV.29,1912.

Patented May 6, 1913.

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L lrnzys LINDALE E. THOMAS, OF KERMIT, WEST VIRGINIA.

SWITCH'.

Specification oi Letters Patent. 7

Patented May 6, 1913.

Application filed November 29. 1912. Serial 110. 734,042.

'car may trail through the switch and throw the same, and also that the switch may be operated, with the car going in the reverse direction, by the driver or motorman, without leaving his seat.

The object of my invention is to produce a switch of this character which is simple and inexpensive in construction, and one which may be operated easily and with certainty.

With the foregoing and other objects in View my invention consists in certain constructions, combinations and arrangements of parts, the preferred form of which will be first described in connection with the accompanying drawings, and then the invention particularly pointed out in the appended claims.

Referring to the drawings wherein the same part is designated by the same reference numeral wherever it occurs, Figure 1 is a plan view of the preferred embodiment of my invention and Fig. 2 is a detail, perspective view of the parts separated to more clearly show the construction.

5, 5 designate the main line rails, and 6, 6, the rails of the switch or siding. Pivoted to the inside rail 5 of the main line is a switch point 7, and pivoted to the inside rail 6 of the switch is a switch point 8, these points being shown as pivoted to their rails at 9.

1O designates a bar extending beneath the rails, which is connected to the switch points 7 and 8 by means of lugs 11, provided with upturned portions 12, adapted to be secured to the sides of the switch points 7 and 8, and also to be secured to the bar 10, as shown in Fig. 1, whereby a reciprocation of the bar will move the switch points.

13 designates a link pivoted at one end to the bar 10, and pivoted at its other end to one end of a bell crank lever 14 pivoted in a lug 15 secured to a tie. Pivoted to the opposite end of the bell crank 14 is a link 16 and connected to the pivot 17. between the link 16 and the bell crank 14, is a rod 18 connected to the switch operating lever 19 provided with a handle 20 and pivoted upon a switch stand 21 by means of the pivot 22.

The switch stand is preferably provided with a guiding sector 23, carrying a guiding bar 24 in which the lever 19 moves. The opposite end of the link from thatwhich is connected to the pivot 17 is pivoted to one end of a rail 25 which is laid beside the main line, and at its opposite end from that to I which the link 16 is secured is spiked to the ties, as indicated at 26, whereby the rail will act as a spring, and will operate to complete the throw of the switch after the same has been started in either direction.

. From the construction just described it will be seen that with the parts in the position shown in Fig. 1, in which the siding is open, the wheels of the car trailing through the switch on the main line will force the switch points over until the toggle has been straightened, thus placing the spring rail 25 under tension, and then to a short distance beyond. The spring in the rail 25 will now operate to complete the throw of the switch. hen the switch is operated through the lever 19 it is only necessary to move the same until the toggle shall have passed its dead center, which again puts the rail 25 under tension, when the spring in the rail will complete the throw of theswitch. It will thus be seen that the rail 25 operates through the toggle formed by the link 16 and the bell crank lever 14:, to complete the throw of the switch in either direction after the same has been partly thrown either by the flanges of'the wheel trailing through the switch or by the lever 19.

I realize that considerable variation is possible in the details of construction and arrangement of parts without departing the bar, a spring rail extending alongside M of the main line rails,said toggle being also connected to said'spring rail, and a switch operating lever connected to the pivot of said toggle.

2. In a switch the combination with a pair of main line rails, a pair of siding rails, and-a pair of switch points pivoted to one rails, a link connecting the free end of the spring 'rail to the other arm of the bell crank lever, whereby said link and the arm ofsaid bell crank form a toggle, and a switch operating lever connected to the pivot of said toggle.

In testlmonywhereof I aflix my signature in presence oftwo witnesses LINDALE E. THOMAS.

Witnesses:

BEN PRIDEMORE, IRA TUT'rLE.

Gopies' of this patent may be obtainedfor five cents each, by addressing the Commissioner of Patents,

Washington, I). G.

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