US702545A - Railway-switch. - Google Patents

Description

No. 702,545. Patented June I7, -|90`l2.lv s. A. nauGLAs a M, ALconN. RAILWAY SWITCH.

{Appuczion mea me. 1o, 1901.) (lo Model'.)

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UNITED STATES PATENT OFFICE.

STEPHEN A. DOUGLAS, OF LEAVENVORTH, AND MLVIN ALCORN, OF

LEAVENWORTH COUNTY, KANSAS. f

RAILWAY-SWITCH.

SPECIFICATION forming part of Letters-Patent lNo. 702,545, dated J' une 17, 1902.

Application iled December 10, 1901. Serial No. 85,382. (No model.)

T0 allawwm t may-concern.-

Beit known that we, STEPHEN A, DoUcLAs,. a resident or Leavenworth, in the county of Leavenworth, and MELVIN ALCORN, a resident of Leavenworth county, State of Kansas, citizens of the United States, have invented new and useful Improvements in Railway-Switches, of which the following is a specification.

Our invention relates to railroad-switches; aud the objects of our invention are, irst, to dispense with the usual guard-rails; secondly, to provide a movable frog-point, withmeans for throwing it simultaneously with the throwing of the switch-rails. We attain these objectsby the construction illustrated in the drawings, in Which- Figure 1 is a plan view of a switch constructed in accordance with our invention. Fig. 2 is a sectional View, taken on linea l) of Fig. 1, for the purpose of showing the means of supporting the frog-point. Fig. 3 is a plan view of the frog-point-supporting plate detached. Fig. 4 is an enlarged section showing one of the ribs on said plate.

As shown, the switch is of a usual form, excepting that the frog-point 1, formed by two pieces of rail 2 2, is movable, and to permit this movement the rails 2 2 are connected looselyto the next rails 3 3 by loose fishplates 4. The wing-rails 5 5 are formed byv simply bending two pieces of ordinary rail into the shape shown in Fig. 1.-

The point 1 is operated by a rod 6, which passes through holes in the webs of wingrails 5 and is secured to the point with nuts G at each side of the point. Said rod is concured to the switch-rails 18 18. The switch-` railsare loosely connected at c c to the wingrails .5,5w with fish-plates 4', Fig. 2.

The Wing-rails 5 5 and the switch-point 1 are mounted on a plate 21, which is spiked to the ties, as shown. The base or foot flanges of the point 1 are of course out away, as shown in Fig. 2, so .that the point may be thrown against eitherof the wing-rails 5 5. We pre'- fer to'support the point 1 by transverse ribs 23, struck up from the plate 21 integral therewith, as shown in Figs. 2 and 3.

It will be observed that the moving of the point 1 enables the car-wheels to pass in a straight line to or from either of the branch tracks, and hence the guard-rails usually employed'are unnecessary when this movable point is used. ,l

The operation of the switch will be clearly apparentfrom the foregoing description.

Having now fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is

A switch comprising a movable frog-point 1, l a frog-plate 21 having upwardly-struck transverse ribs supporting. said frog-point, a rod 6 secured to said point and passing through the wing-rails, a bell-crank lever 7 connected to said rod, a rod 9 having one end connected to said'bell-crank lever, a` switchstand, a bell-crank lever 12 adjacent thereto,

and connected -to the oppositeend of said rod 9,a switch-arm 16, a link 15, connecting said switch-arm to bell-crank lever 12, and a rod 17 connected tosaid link; substantially ias-and for the purpose described.

'In testimony whereof we affix our signatures in thegpresence of two witnesses.

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