Compound geometry rail switch

Details Compound geometry rail switch Compound geometry rail switch

1993-09-17

1994-12-27

Butler, Douglas C.

Railway switches and signals

Switches

246435R, E01B 700

Patent

active

053757971

ABSTRACT:
An improved geometry for a split switch rail turnout a compound point rail leading to a curved closure rail that is linear and tangent through the switch frog. The switch point rail includes a proximal portion curved in the same radius as the closure rail, and a distal end portion that is linear and tangent to the proximal portion. The linear distal end portion of the point rail provides an entry angle of the switch point that is the same as the angle of attack of a wheel truck encountering the turnout, and also provides the shortest possible switch point length and the greatest possible radius of curvature of the closure rail. The angle of attack and the curvature of the closure rail can be optimized to produce a split switch turnout that permits high speed through the turnout while minimizing wear and maintenance costs.

REFERENCES:
patent: 941089 (1909-11-01), McCalib
patent: 3977635 (1976-08-01), Pirker et al.

Affiliated with

Also associated with

Rating

Compound geometry rail switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compound geometry rail switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound geometry rail switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-913378