Railway rolling stock – Trucks – Bogie
Patent
1979-04-09
1982-06-08
Peters, Jr., Joseph F.
Railway rolling stock
Trucks
Bogie
267 4, 267168, 267179, B61F 506, F16F 106, F16F 112, F16F 304
Patent
active
043334032
ABSTRACT:
One or more of the springs supporting the bolster of a railway car truck is a two stage spring group comprising an outer coil and an inner coil disposed within and coaxial with the outer spring. A retainer is provided to hold the inner spring in relation to the outer spring. The retainer has helically arranged lugs or a flange in engagement with the outer coil at the lower end, and the retainer also includes a support surface for supporting the lower end of the inner coil.
REFERENCES:
patent: 83855 (1868-11-01), Horner
patent: 138675 (1873-05-01), Middleton, Jr.
patent: 208904 (1878-10-01), Godley
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patent: 531910 (1895-01-01), Cloud
patent: 571972 (1896-11-01), Janney
patent: 3030056 (1962-04-01), Rogers
patent: 3556504 (1971-01-01), Sinclair
patent: 4148469 (1910-04-01), Geyer
patent: 4186914 (1980-02-01), Radwill et al.
Guins Sergei G.
Tack Carl E.
Beltran Howard
Peters Jr. Joseph F.
Transdyne, Inc.
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