B - Operations – Transporting – 61 – K
Patent
B - Operations, Transporting
61
K
B61K 7/08 (2006.01)
Patent
CA 2513846
The present invention relates to a fail-safe skate retarder that applies a braking force proportional to the weight of a rail car entering the retarder. Each segment of the retarder includes a lever mechanism with a pair of levers rotatably joined under the running rail. Each lever holds a braking rail for engaging a wheel of the car. The retarder is normally in a lower, fail-safe position with the brake rails closer together than the width of the wheel. When the car enters the retarder, the wheel forces the brake rails apart into a braking position, and the middle of the lever mechanism rises to lift the running rail and car. A hydraulic power unit and cylinder is activated to raise the middle of the lever mechanism even further to a release position so that the brake rails are spread apart more than the width of the wheel.
Heyden Thomas J.
Zawlocki Mark Robert
Aaa Sales & Engineering Inc.
Moffat & Co.
LandOfFree
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