Patent ID: 7631774

Claim:
A trolley hanger system for connecting an intermediate hose to an end hose between rail cars, comprising a trolley rod fixedly attached to a rail car, having a longitudinal axis generally parallel to the longitudinal axis of the rail car; a hanger supported on the trolley rod and having generally parallel front and rear sides oriented perpendicularly to the longitudinal axis of the trolley rod; a recess having an curved surface running from the front side to the rear side of the hanger, so that the hanger is supported on the trolley rod and can rotate around the longitudinal axis of the trolley rod, but cannot rotate around an axis perpendicular to said longitudinal axis; first and second ears extending from the hanging surface and terminating at one end of the hanger, at least one of the first and second ears having a through hole for connection to a flange connecting the intermediate hose to the end hose; wherein the ears are separated by a space wider than the recess and being adapted to receive a pipe or hose fitting.