US725956A - Railroad-switch. - Google Patents

Description

PATENTED APR. 21, 1903.

o. P. GRANGER.

RAILROAD SWITGH.

APPLIOATION FILED FEB. 7, 1993.

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NO MODEL.

l V IL einigem@ No. 725,956.- y PATBNTBD APR. 21', 1903. o. P. GRANGER.

RAILROAD SWITCH.

APPLICATION FILED PEB. 7, 1903.

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PATENTED APR.v 21, 1903.

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RAILROAD SWITCH.

APPLICATION FILED FEB. v. 190s.`

N0 MODEL.

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@ga/awk@ UNITED STATES PATENT EEICE.

CHARLES E. GRANGEE, oE'HoLYo'KE, MASSACHUSETTS, ASSIGNoRoE CNE- HALE To E. L. ALDEEMAN, on HoLYoKE, MASSACHUSETTS.

RAILROAD-SWITCH.

SPECIFICATION forming part of Letters Patent N o. 725,956, dated April 21, 1903.

Application filed February 7, 1903. Serial No. 142,335. (No model.)

To al?, whom t may concern;

Be it known that I, CHARLES F.A GRANGER,

a citizen of the United Statesof Americagresiding at Holyoke, in the county of Hampden and State of Massachusetts,"have vinvented certain new an d useful Improvements in Rail;

road-Switches, of which the-following is a specification.

The object of the improvement is the pro-V lo duction of a railway-switch adapted to be operated by hand and also adapted to be operJ ated from an open to a closed adjustment by. a vehicle-a locomotive, for instance-ap` proaching the switch on the iixed tracks. In the accompanying drawings, Figure lis a side elevation with some of the parts brokenY away or absent. Fig. la is a View of the operating-lever. Fig. 2 is a View'from above, a plan view, of a portion of the tracks. Fig." zo 3 is an elevation partly in section on the plane denoted by the dotted line x x of Fig. 1.

The particular objectof the invention isto provide a safety adjustment for a railroadswitch whereby if a switch from the main track to a siding is left open it will be closed by a train approaching on the main track before the switch is reached.

In the accompanying drawings, a denotes fixed tracks.

h denotes shiftable tracks properly connected together. j

c o' denote pivotallyV-connected toggle-lee* vers, one of which, c', may be pivotally supe ported in a suitable chair, as c2. The upper 3 5 end of the lever o is connected with the shift` able tracks, and this lever is pivoted at a point between its ends, as at c3. d d' denote levers pivotally connected to said toggle-levers at their pivotal connection, carrying ad- 40 j ustably thereon the weights e e and provided with friction wheels f f', bearing against track-supports g g', which allow said weighted levers their necessary movement and at the same time prevent them from falling unduly outward. Y i

The letters h 71, denote shifting-rods .designed for use in shifting the shiftable tracks by hand. Each has a'hookh2 or the Alike underlying therweighted lever, with which it cooperates. These shifting-rods lie normally ingly.

4motive. "with the upperend of the lever lc throws it for- Award, drawing the chain m up over the pulley 'and 'raising the Weight e.

in their down adjustment, being kept there by their gravity. When one of the weighted levers is in its downward adjustment, then by pulling up on and raising its appurtenant shifting-rod, as shown vat h in Fig. 3, that :weighted lever is raised, its fellow is lowered,

and the shiftable tracks are moved accord- The raising of the lever d by the rod h moves the shiftable track to the position shown in Fig.'3, opening the switch to the 6o siding. By reference to Fig. 3 it will be seen that the pivotal point ofthe toggle-levers c c passes by the center in the extreme positions of the levers el d, the construction being such as to permit ofy this break, and the shiftable tracks are thus securely locked in either of their positions. The weights e e' aid in main- Ttaining the position of the toggle-levers c c. .When one of vthe shifting-rods h has been raised and the traoks'shifted, it will drop by 7o its own weight,rand I provide a spring z', which acts as a buffer and maintains the upper ends of the rods in *a position where they can be readily grasped. The switch will only be operated by an oncoming train when it has been carelesslyleft open. One of the weights e is connected by the Chain m with a pivoted lever lo, which occupies the position shown in Fig. 1. When the switch is open, its upper end projects into operative relation with a 8o projection Z, carried Vby the vehicle, as a loco- This projection looming in contact The operation is exactly as if the shifting-rod h were raised by hand, dropping the lever d and reversing the position of the parts from that shown in Fig. 3, closing the switch to the siding and giving a clear main track. 9o

In order to prevent tampering with the switch mechanism through the rods h h', I prefer to iuclose the ends of these rods in suitable tubes n n, these tubes being slotted, as at n2, to receive the prongs of theoperat- 9 5 ing-lever n3. (Shown in Fig. la.)

I claim as my invention-1 l. In combination; the fixed tracks; the connected shiftable tracks, ,thetoggleleverm one of them taking hold of the shiftable 10o tracks; and the Weighted levers pivotall y connected to said toggle-joints at their pivotal connection.

2. In combination; the fixed tracks; the connected shiftable tracks; the toggle-levers, one of them taking hold of the shiftable tracks; and the adjustable Weighted levers pivotally connected to said toggle-levers at their pivotal connection.

3. In combination; the fixed tracks; the connected shift-able tracks; the toggle-levers, one of them taking hold of the shiftable tracks; the weighted levers pivotally connected to said toggle-levers at their pivotal connection; and supports for said Weighted levers.

4. In combination; the fixed tracks; the connected shiftable tracks; the toggle-levers, one of them taking hold of said shiftable tracks; the Weighted levers pivotally con nected to said toggle-levers at their pivotal connection and carrying friction-wheels; and the tracks for said friction-Wheels.

5. In combination; the fixed tracks; the connected shiftable tracks; the toggle-levers, one of them taking hold of said shiftable tracks; the weighted levers pivotally connected to said toggle-levers at their pivotal connection; and the shifting-rods adapted to coperate with said Weighted levers.

6. In combination; the iixed tracks; the connected shiftable tracks; the toggle-levers, one of them taking hold of said shiftable tracks; the weighted levers pivotally connected to said toggle-levers at their pivotal connection; the shifting-lever set alongside one of the fixed tracks and adapted to be operated by a projection from a vehicle moving on said xed tracks; and a connection from said shifting to one of said Weighted levers.

In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES F. GRANGER.

Witnesses:

ADDISON L. GREEN, MABEL L. JUDD.

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