Method of and apparatus for producing valve rotors

Details Method of and apparatus for producing valve rotors Method of and apparatus for producing valve rotors

1981-10-28

1984-04-17

Crane, Daniel C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

72311, 72374, 72416, B21D 5300, B21D 5310

Patent

active

044425791

ABSTRACT:
The invention provides a method of and apparatus for imparting a required metering form to the longitudinal outer edges of axially extending grooves of cylindrical rotor members of rotary valves by moving an impressing tool or tools having the required metering form thereon against a said edge or edges of a rotor member or members generally in the direction of a chord extending between a point on said edge and a similar point on an adjacent edge of the nearest adjacent groove so as to displace the material of the edge being worked away from the groove.

REFERENCES:
patent: 530212 (1894-12-01), Tyler
patent: 808001 (1905-12-01), Briede
patent: 2291408 (1942-07-01), Pearson
patent: 2519820 (1950-08-01), Bruegger
patent: 3800389 (1974-04-01), Bishop
patent: 4103407 (1978-08-01), Elizalde et al.

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