Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1984-12-31
1987-01-27
Goldberg, Howard N.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
228186, 228265, 295 30, 295 31R, B21H 104
Patent
active
046385401
ABSTRACT:
A method for manufacturing a railway wheel with a base material, a more wear-resistant layer at the part of the flange facing the wheel tread, and a layer in the tread which gives a high friction between wheel and rail which is relatively independent of the weather. The method is characterized in that a prefabricated component is manufactured from members of the base material and from the more wear-resistant materials, respectively, which members are given such a shape as to fit closely against each other, and which, after turning or other machining and cleaning from oxide and other impurities, are put together and welded together at the outer surfaces of the component in such a way that admission of air between said members is prevented, the component thereafter being hot-worked to form a finished or near finished wheel blank with a good bond between the different members defining the tread and/or flange regions thereof.
REFERENCES:
patent: 4673 (1846-07-01), Saunders et al.
patent: 547096 (1895-10-01), Taylor
patent: 1959068 (1934-05-01), Stoll
patent: 2030243 (1936-02-01), Corts
patent: 4152816 (1979-05-01), Ewing et al.
Hassellof Ake
Lenasson Carl-Gustaf
Nordhall Lennart
ASEA Aktiebolag
Echols P. W.
Goldberg Howard N.
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