Railway rolling stock – Special car bodies – Freight
Patent
1977-11-25
1979-12-18
Blix, Trygve M.
Railway rolling stock
Special car bodies
Freight
16 96R, 49220, B61D 1900, E05D 1510
Patent
active
041788575
ABSTRACT:
A rail house car with side openings and doors for closing the openings by movement of the doors longitudinally along the car sides and laterally into and out of the openings. Cranks moveably support and retain the doors on longitudinal tracks below the doors and within longitudinal retainers above the doors. The cranks are selectively manually driven for lateral movement of the doors. The top cranks include combination skid and roller devices which permit the doors to move easily because of the rollers when they are longitudinally moved along the track and retainer but which permit the locating of the rollers within recesses in the surfaces of the retainers when the doors are located laterally substantially within their openings along the car sides. The skids provide minimal wear of the surfaces of the retainers when the doors are so located because of the relatively large areas of the skid surfaces in face to face engagement with the retainers' surface portions adjacent the recesses as compared to wear normally created by the rollers' tangential lines of contact with the retainers' surfaces. This wear is usually present in those situations where insufficient structural support for the roof causes vertical vibrations in the longitudinal retainers. The skid and roller combination is also associated with any auxiliary cranks which are in engagement with surfaces of the longitudinal retainers.
REFERENCES:
patent: 901531 (1908-10-01), Gerdes et al.
patent: 2331957 (1943-10-01), Bikle
patent: 3512484 (1970-05-01), Madland et al.
Atwood Frank
Blix Trygve M.
Mulholland John H.
The Youngstown Steel Door Company
LandOfFree
Rail house car door wear skids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rail house car door wear skids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rail house car door wear skids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-449173