Title: Protective safety apparatus for railway cars

Abstract: Apparatus is disclosed which detects a wheel derailment, detached brake rigging or off center truck of a railway train and automatically switches the air brake system of the train into a state of emergency stop. A pair of synthetic resin tubes with closed lower ends are mounted to a brake bar of each truck and extend outwardly and downwardly toward the track. The tubes are mounted on laterally opposite, interior sides of the wheels. They are connected by flexible air hoses to a manually actuable valve which in turn connects to the main air brake pipe extending longitudinally along the underside of the railway car. The closed ends of the tubes are inwardly and upwardly offset from the rail and positioned for striking the rail or roadbed, rupturing one or more of the tubes and venting the air from the brake line upon the occurrence of one of the above hazardous failures.

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Inventors: Mygatt, John M. (Columbus, OH, US)
Donohue, William T. (Amanda, OH, US)

Application Number: 606413
Filing Date: 1975-08-21
Publication_date: 1976-12-21
Assignee:
Primary Class(es): 246/172 303/1
Other Classes:
US Patent Ref:

1497212	Jun, 1924	Hough et al.	246/172.
1559809	Nov, 1925	Tonkinson	246/172.
1661920	Mar, 1928	Carley	246/172.

Other Refs:
Primary Examiner: Reger, Duane A.
Assistant Examiner:
Attorney: Foster; Frank H.