Railway antinoise pollution arrangements
AssigneeWestinghouse Air Brake Company
InventorPhilip J. DeIvernoise, Jr.
Life of this patent
Estimating the term…
Abstract
This disclosure relates to a gripping type of railroad car retarder or a section of railway trackway having the running rail composed of vibrational dampening material for absorbing and dissipating vibrational energy imparted to the wheels of railway vehicles by the slip-slide action occurring between the brake shoes and the sides of the vehicle wheels or between the running rails and vehicle wheels for preventing the development of wheel screeching sounds.
Claims11
In combination, a railroad car retarder having a plurality of operating units disposed along the length of a running rail of a trackway, an elongated braking bar disposed on each side of said running rail and carried by said plurality of said operating units, said elongated braking bar including a brake beam and a brake shoe for engaging the wheels of railway vehicles, characterized by said running rail including alternate substantial lengths of metal and vibrational dampening material for contacting the passing wheels of the railway vehicles, said vibrational dampening material for absorbing sound producing energy from the passing wheels of the railway vehicles for preventing the development of wheel squealing noises, and means for reinforcing said vibrational dampening material to form a substantially rigid running rail.
In combination, a section of railway trackway having a pair of running rails guiding and supporting the wheels of passing railway vehicles, characterized by said running rails having alternate substantial lengths of metal and vibrational dampening material for contacting the passing wheels of the railway vehicles, said vibrational dampening material for absorbing sound producing energy from the passing wheels of the railway vehicles for preventing the production of wheel squealing noises, and means for reinforcing said vibrational dampening material to form substantially rigid running rails.
Dependencies are inferred from the claim text.