Method of making pulleys with plural V-shaped grooves

Details Method of making pulleys with plural V-shaped grooves Method of making pulleys with plural V-shaped grooves

1989-03-10

1990-09-11

Echols, P.W.

Metal working

Method of mechanical manufacture

Pulley making

29507, 29521, 29523, 474169, B21K 142

Patent

active

049551337

ABSTRACT:
A method of making a pulley with a number of V-shaped grooves, especially having a stepped shape, comprises a rim or rims and a core which are separately formed by an appropriate plastic process and are fixed or connected fixedly to each other by a metallurgical or mechanical processing. According to one embodiment, a short pipe-shaped blank is rolled to produce a rim with a number of V-shaped grooves, and thereafter the rim or rims is fixed to a core by the action of the rolling to interfit serrations on the rim and core.

REFERENCES:
patent: 183791 (1876-10-01), Bricknell
patent: 1266579 (1918-05-01), Garcelon
patent: 2846893 (1958-08-01), Bagley
patent: 2846893 (1958-08-01), Bagley
patent: 3245273 (1966-04-01), Loper et al.
patent: 3467180 (1969-09-01), Pensotti
patent: 3722309 (1973-03-01), Shaffer
patent: 3838485 (1974-10-01), Oldford
patent: 3838485 (1974-10-01), Oldford
patent: 3994181 (1976-11-01), Sproul
patent: 4098137 (1978-07-01), Yaros

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