Patent ID: 7121388
Filing Date: 2006-10-17
Classification: B60T,B61H

Abstract:
1. A hand brake assembly engageable with a railway vehicle, said hand brake assembly comprising: (a) an operating means having at least a portion thereof engageable with at least one gear of a gear assembly disposed in a housing member of said hand brake assembly for operating said gear assembly in an application direction; (b) a source of fluid pressure connected to said operating means for periodically supplying a predetermined pressure to said operating means at least sufficient to cause movement in such application direction of said at least one gear of said gear assembly; (c) a means connected to said source of fluid pressure for initiating said supply of said predetermined pressure to said operating means thereby causing an automatic movement of said gear assembly in such application direction by said hand brake assembly; (d) a timing means connected intermediate said operating means and said source of fluid pressure for controlling said predetermined pressure being periodically supplied to said operating means; and (e) an overload protection means connected to one of said source of fluid pressure and said operating means for preventing an overload.