US976560A - Rail-switch. - Google Patents

Description

T. R. DUNCAN.

RAIL SWITCH.

APPLICATION FILED MAR. 15, 1910'.

Patented Nov. 22, 1910.

v. 4: NORRIS PETERS 00.. wAsHmcmrv, n. c.

THOMAS R. DUNCAN, OF RICHMOND, CALIFORNIA.

RAIL-SWITCH.

Specification of Letters Patent.

Patented Nov. 22, 1910.

Application filed March 15, 1910. Serial No. 549,459.

To all whom it may concern:

Be it known that I, THOMAS E. DUNCAN, a citizen of the United States, residing at Richmond, in the county of Contra Costa and State of California, have invented certain new and useful Improvements in Rail- Switches, of which the following is a specification.

This invention relates to switches for rail ways and the principal object of the same is to provide a switch at the point where a stationary frog is usually employed, the track at the junction with said switch being provided with extended rails to provide guards for the switch which protect the same from damage by the wheels and which also guide the wheels to the switch so that danger of the wheels jumping the switch is prevented.

The drawing shows a top plan view of the invention with the switch frog in position to close the main line.

Referring to the drawing by numerals wherein the invention has been shown in a top plan and applied to the junction of a main line and a siding, 12 designate the rails of the main line and 34 designate the rails of the siding. Switches 56 are employed for connecting the main line and siding, said switches being connected by a rod 7 and simultaneously operated by the usual switch stand 8. Main rail 2 terminates in a short, substantially right angular extension 9 from which the integral guard rail 10 projects. Siding rail 41- which converges toward main rail 2 terminates in a short angular extension 11 that projects in an opposite direction to the similar portion of rail 2, said extension 11 having a guard rail 12 projecting therefrom which is similar to the guard rail 10 of main rail 2. Said guard rails 10 and 12 provide clearance space between them for the operation of a frog switch 13, which has a rod connection 14 with a bell crank lever 15 pivotally mounted on one end of a tie. A rod 16 connects lever 15 with switch stand 8, so that frog switch 18 will operate simultaneously with main switches 56.

It will be seen from the foregoing that angular extensions 9 and 11 of the main the siding rails provide an abutment for the free end of switch 13 which prevents the wheels pounding the point thereof, and also that said switch when in contact with either of said extensions forms a continuation of the rail so that the wheels will smoothly ride onto the switch. It will also be seen that the guard rails 10 and 12 being a part of the main and the siding rails, produce an economical structure for the reason that no alteration is necessary in said rails other than the angular bend.

What I claim as my invention is 1. As a new article of manufacture, a rail switch comprising a main rail and a siding rail extending at an angle thereto, intermediate main and siding rails between said first-mentioned rails, said intermediate main and siding rails being of substantially the same length and each comprising a comparatively long body portion terminating in a right-angled extension of the same width as said body portion and said right-angled extension terminating in a comparatively short angled-extension projecting at an angle to the main body portion, said angledextension terminating at its outer end in an outwardly extending or flared projection or flange, said angled-extensions constituting a switch-member pocket, that is provided at its inner end with right-angled shouldered portions of substantially the same width as the width of the body portion of the intermediate rails, and a switch member 'pivotally mounted in said switch-member pocket and being provided with a comparatively broad inner end portion formed at right-angles to the body of said switch-member, the inner end portion normally parallel with the inner face of the engaged shouldered portion of the pocket, the breadth of the inner end of the switch-member being such as to constitute a continuation of the body portion of either intermediate rail, substantially as shown and described.

2. A switch mechanism comprising an outer main rail and an inner main rail, an inner switch-rail and an outer switch-rail, the inner main rail and the inner switchrail being of similar construction and each provided with a body-portion having a right-angled shouldered extension, said shouldered extension terminating in an outwardly-curved portion the shouldered portion having an inner surface formed at right-angles to the body-portion, a switchmember fitted between the inner main rail and the inner switch-rail, and provided with a fiat end formed at right-angles to the lonthe body of either said main rail or said 10 gitudinal axis of the same, whereby the end switch-member, substantially as shown.

of said switch-member can engage either of In testimony whereof .I affix my signature the shouiodereibportions s %uare1y and conin presence of two witnesses.

stitutea roa earin sur 'ace or a continuous portion of the mei n rail having substan- THOMAS DUNCAN tially the same thickness, the continued ends Witnesses:

of the main rail and the switch member be- H. C. SGHROEDER,

ing abutting in the plane at right-angles to E. G. GRAY.

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