Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1984-01-20
1985-08-27
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Assembling or joining
188218R, B23D 1102, F16D 6510
Patent
active
045369364
ABSTRACT:
A method of forming a brake drum includes the steps of casting an iron cylindrical braking drum with a flange end and an opened end to include a plurality of generally axially extending fins around an exterior surface thereof. The casting includes providing the fins with radially extending side walls which diverge along a length thereof from the opened end to a widest distance therebetween at a predetermined location from the opened end and converge along the length thereof from the predetermined location to the flange end. Accordingly, adjacent side walls of adjacent fins define a space therebetween having its narrowest portion at the predetermined location. A braking surface is machined about an interior of the cylindrical braking drum. A top of the fins is machined at either side of the predetermined location to include a shoulder at the end thereof away from the opened end. A steel band is formed and secured to the braking drum at the top of the fins to encircle the braking drum at the predetermined location.
REFERENCES:
patent: 2740502 (1956-04-01), Butterfield
patent: 2888105 (1959-05-01), Burnett
patent: 3151709 (1964-10-01), Troy
patent: 3841448 (1974-10-01), Norton
patent: 4025751 (1977-05-01), Wright
patent: 4266638 (1981-06-01), Peterson et al.
Goldberg Howard N.
Nichols Steven
Rockwell International Corporation
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