Patent ID: 6039158
Filing Date: 2000-03-21
Classification: B60L,B61H

Abstract:
A safety brake for a locomotive, comprising:a force transmitting device connected to a brake mechanism associated with at least one wheel of a locomotive, an actuating mechanism operably connected to the force transmitting member and a powered drive for driving the actuating mechanism to apply a force to the brake mechanism, wherein the powered drive includes a motor, a planetary reduction drive for providing sufficient force to set the brake, and a clutch, the powered drive being constructed and arranged so that the motor operably drives the actuating mechanism through the planetary reduction drive and the clutch such that the clutch slips when sufficient force has been applied to the brake through the force transmitting member to set the brake, further comprising a manual drive for driving the actuating mechanism, the manual drive being located between the powered drive and the actuating mechanism, the manual drive having a first condition in which the manual drive operates the actuating mechanism and a second condition in which the manual drive does not operate the actuating mechanism, wherein only the powered drive operates the actuating mechanism when the manual drive is in the second condition.