Telescopic draft gear

Details Telescopic draft gear Telescopic draft gear

1976-10-15

1978-02-21

Blix, Trygve M.

Railway draft appliances

Cushioned

Combined spring and friction

213 32A, 213 34, B61G 1114

Patent

active

040748138

ABSTRACT:
A hollow plunger extends into the cavity of the draft gear body. The inner end of the plunger is expansible. One or more wedges are held by the body adjacent the inner end of the plunger, and shoes are positioned between the wedge(s) and the inner side of the inner end of the plunger. Spring elements positioned within the plunger are in compression between the outer end of the plunger and the shoes. When the plunger is forced into the body the shoes are wedged outwardly against the expansible portions of the plunger which in turn are forced into contact with the body. There may be one or a plurality of successive stages of wedges and shoes.

REFERENCES:
patent: 1562783 (1925-11-01), O'Connor
patent: 1693816 (1928-12-01), O'Connor
patent: 1741648 (1929-12-01), O'Connor
patent: 1877329 (1932-09-01), Johnson
patent: 3202300 (1965-08-01), Holm et al.

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