Railroad frog having movable wing rails

Details Railroad frog having movable wing rails Railroad frog having movable wing rails

1983-10-26

1987-01-20

Scherbel, David A.

Railway switches and signals

Switch-connected frogs

Swinging rail

246449, 246392, E01B 714

Patent

active

046375783

ABSTRACT:
A railroad frog has either a cast or rail-built point, resting on a baseplate which is fastened to ties. A pair of heel rails are attached to the point, to the ties and to traffic rails. A pair of movable wing rails extend from the toe of the frog to a location adjacent the point of the frog. At the frog point an open wing rail forms a flangeway with the point, while the other, closed wing rail cooperates with the point to form a continuous tread surface through the frog. The wing rails are alternately thrown between the open and closed positions by an actuator. A series of stops define the open wing rail position and act to hold down the open wing rail. The wing rails have hinges which allow them to move. The wing rails have a full rail base at the hinges. Adaptor plates allow use of the frog on concrete ties.

REFERENCES:
patent: 494768 (1893-04-01), Wood
patent: 719461 (1903-02-01), Green et al.
patent: 816257 (1906-03-01), Shaw
patent: 832840 (1906-10-01), Carroll et al.
patent: 1247447 (1917-11-01), Petty
patent: 2174367 (1939-09-01), Hoffman
patent: 3910534 (1975-10-01), Perrot
Modern Railroads-Feb. 1969, More Cant-Less Shelling, 230-1.

Affiliated with

Also associated with

Rating

Railroad frog having movable wing rails does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Railroad frog having movable wing rails, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Railroad frog having movable wing rails will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2131335