Railway rolling stock – Trucks – Bogie
Patent
1976-11-26
1978-08-01
Hoffman, Drayton E.
Railway rolling stock
Trucks
Bogie
105182R, 252 12, 308138, 308238, B61F 514, C10M 500, C10M 700, F16C 3324
Patent
active
041036247
ABSTRACT:
A railway car truck assembly having an integral H-frame includes longitudinally extending side frames integrally attached to a transverse member having a center bearing. The side frames are resiliently mounted for rocking movement on truck journal boxes. The side frames each include a constant contact side bearing adapted to take the weight of the car body. Each side bearing has an upper surface made of a first low friction material. A car body located above the truck pivots about the center bearing and includes laterally spaced depending portions having a lower surface made of a second low friction material supported on the side bearings. One of the first and second low friction materials includes filled nylon and the other low friction material includes filled polytetrafluoroethylene. The coefficient of friction between the first and second low friction materials is sufficiently low to allow relative rotation between the truck and car body.
REFERENCES:
patent: B559142 (1976-03-01), Hussey
patent: 579311 (1897-03-01), Anderson
patent: 630358 (1899-08-01), King
patent: 710673 (1902-10-01), Fassett
patent: 717060 (1902-12-01), Weimer
patent: 1810178 (1931-07-01), Lord
patent: 1821296 (1931-09-01), Drenning
patent: 1994304 (1935-03-01), Devlin
patent: 2168293 (1939-08-01), Kiesel, Jr.
patent: 2233540 (1941-03-01), Latsham
patent: 2513266 (1950-06-01), Laukus, Sr.
patent: 2695425 (1954-11-01), Stott
patent: 2699656 (1955-01-01), Anderson et al.
patent: 2975128 (1961-03-01), Stott
patent: 2995381 (1961-08-01), Melton et al.
patent: 3013967 (1961-12-01), Rulon-Miller et al.
patent: 3126339 (1964-03-01), Stott
patent: 3338183 (1967-08-01), Boissier
patent: 3401991 (1968-09-01), MacDonnell
patent: 3554618 (1971-01-01), Ditzler et al.
patent: 3879301 (1975-04-01), Cairns
patent: 3961584 (1976-06-01), Paton et al.
patent: 4001124 (1977-01-01), Hussey
Hammonds James C.
Holt Jan D.
ACF Industries Incorporated
Beltran Howard
Cummings Henry W.
Hoffman Drayton E.
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