Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1986-05-02
1987-07-21
Echols, Percy W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
2940219, B21H 104
Patent
active
046808469
ABSTRACT:
Track wheels, especially railroad wheels, are trued in a material saving manner by first displacing material from zones of lesser wear to zones of higher wear on the wheel tread and/or on the wheel flange including the flank area of the flange, especially that part of the flank merging the flange into the tread zone. The location of the new or restored tread is then determined and a material removing operation such as milling or turning is performed. The material displacing may be performed by a rolling or forging operation prior to the milling or turning operation.
REFERENCES:
patent: 969275 (1910-09-01), Hansen
patent: 1722389 (1929-07-01), Opie et al.
patent: 3535906 (1970-10-01), Swick et al.
Echols Percy W.
Fasse W. G.
Kane, Jr. D. H.
Wilhelm Hegenscheidt GmbH
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