Saddle frame for passive steering single-axle truck for a railwa

Details Saddle frame for passive steering single-axle truck for a railwa Saddle frame for passive steering single-axle truck for a railwa

1987-03-26

1988-08-30

Smith, Leonard E.

Railway rolling stock

Trucks

1054631, B61F 300

Patent

active

047668199

ABSTRACT:
An improved saddle frame for a passive steering single-axle truck for a railway freight car that allows for unobstructed passage of infrared rays from the wheel bearings, so that they may be sensed by a hot-box detector mounted on a rail bed. The saddle frame has a center web section including a pair of parallel lower flanges, which flanges are cut back on the inboard sides thereof to allow for the unobstructed passage of the infrared rays. Each inboard section is of considerably reduced width as compared to the outboard sections, with compensatory thickening being provided for both inboard and outboard sections of the flanges. The inboard sides of the saddle frame's upright columns and spring arms are also cut back at a forty-five degree slope in order to ensure that the infrared rays reach the hot-box detector.

REFERENCES:
patent: 3286653 (1966-11-01), Weber
patent: 3394662 (1968-07-01), Weber
patent: 3841233 (1974-10-01), Sinclair
patent: 4109586 (1978-08-01), Briggs et al.

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