Patent ID: 9533691
Date: 2017-01-03
CPC Classifications: B61B,B61D,B61L,E21F,G09F

Claim:
1. A guidance and signaling system comprising a trolley configured for human transport and configured to roll along a railway having an ingress direction and an egress direction, the trolley having: a base plate configured for placement below the railway and having a front end, a back end, and left and right sides; a rolling member mounted to the base plate and configured to engage and to roll along the railway; a clicker configured to engage a protrusion of the railway for selectively preventing the trolley from moving in the ingress direction, the clicker configured to move between a first position where the trolley moves past the protrusion in either the ingress direction or the egress direction and a second position where the trolley moves past the protrusion in the egress direction only and is stopped by the protrusion when moving in the ingress direction; a pair of handles configured to be gripped by a miner standing on a floor surface, the handles extending downwards proximate the front end of the base plate.