Method of making sheet metal pulley

Details Method of making sheet metal pulley Method of making sheet metal pulley

1974-07-19

1976-02-03

DiPalma, Victor A.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29421R, 742308, B21K 142

Patent

active

039356272

ABSTRACT:
A method for forming the grooves in single and multigroove sheet metal pulleys, including shaping and/or crimping of the groove walls, wherein the grooves are formed by a sequential, single step, continuous process from a punched or drawn blank without intermediate handling and/or displacement of the blank using both axial and radial pressures, wherein the applied radial pressures or forces are substantially less than the applied axial pressures or forces. The pulley may have grooves of the same or different pitch and of the same or different diameter.

REFERENCES:
patent: 349718 (1886-09-01), Hollerith et al.
patent: 701549 (1902-06-01), Deering
patent: 2743691 (1956-05-01), Cuq
patent: 2929345 (1960-03-01), Zatyko, Sr.
patent: 3335590 (1967-08-01), Early
patent: 3394569 (1968-07-01), Smith
patent: 3675453 (1972-07-01), Marsch
patent: 3820369 (1974-06-01), Tominaga et al.

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