Method and apparatus for making a sheet metal pulley

Details Method and apparatus for making a sheet metal pulley Method and apparatus for making a sheet metal pulley

1975-02-03

1976-03-23

Di Palma, Victor A.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

742308, 113116D, B21K 142

Patent

active

039451020

ABSTRACT:
A method and apparatus for making a sheet metal pulley having a pair of stamped sheet metal cups with telescopically interfitted side wall portions and integral flanges forming in cooperation with the flanges of rings received on the cups a plurality of V-shaped grooves. A device which engages a side wall portion of at least one of the cups locates and produces pulley mounting holes concentric with the grooves of the pulley and extending through the bottom walls of the cups. The mounting holes are produced prior to a ring being fixed to such side wall portion by a plurality of circumferentially equally spaced spot welds in such ring and side wall portion.

REFERENCES:
patent: 2646689 (1953-07-01), Maher
patent: 2680380 (1954-06-01), Bagley
patent: 2729110 (1956-01-01), Killian et al.
patent: 2741134 (1956-04-01), Bagley
patent: 2915908 (1959-12-01), Narnkey
patent: 3722309 (1973-03-01), Shaffer
patent: 3722310 (1973-03-01), Schultz, Jr.
patent: 3772928 (1973-11-01), Gobeille

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