Patent ID: 8505462
Filing Date: 2013-08-13
Classification: B61B,Y02T

Abstract:
1. A gravity binary rail security traverse system, which comprises: (a) an anchor pulley hingedly affixed to a first base; (b) a flexible rail surmounting said anchor pulley to form upper flexible rail and a lower flexible rail disposed beneath said upper flexible rail, said flexible rail movable about said anchor pulley to continuously distribute loads on said flexible rail, said upper flexible rail have a first end and a said lower flexible rail having a second end, said ends affixed to a second base spaced apart from said first base, there being an inclination of said flexible rail between said first base and said second base; (c) an upper pulley slide affixed to said upper rail and a lower pulley slide affixed to said lower rail, said slides being tethered together; (d) a vehicle unit affixed to said lower pulley slide and movable by gravity between said bases due to said inclination therebetween; and (e) a first tether fixing said upper flexible rail to said first base independent of said fixed anchor pulley and located between said vehicle and said anchor pulley, and a second tether fixing said lower flexible rail to said first base independent of said fixed anchor pulley and located between said vehicle and said anchor pulley.