Metal deforming – By three or more coacting relatively movable tools – Concurrently actuated tools
Patent
1979-10-03
1981-12-22
Crosby, Gene P.
Metal deforming
By three or more coacting relatively movable tools
Concurrently actuated tools
29237, 7245303, B21D 4100
Patent
active
043064426
ABSTRACT:
A radial press for workpieces with cylindrical outer surfaces has a plurality of pressing jaws arranged in a circle for radial movement towards the axis of the workpiece outer surface. A pressure ring acts on the pressing jaws so that when the pressure ring is axial displaced, the jaws will open and close. Both the pressure ring and the pressing jaws each have two surface parts, having a wide setting angle and two surface parts having a narrow setting angle, wherein the surface parts having a wide setting angle are disposed firstly at the end faces and secondly between the surface parts having the narrow setting angle. In this way, when the pressing jaws are closed, the surface parts having the wide setting angle are deployed first, and then the surface parts having the narrow setting angle are deployed.
REFERENCES:
patent: 1782219 (1930-11-01), Wallace
patent: 3762209 (1973-10-01), Herndon
patent: 3851514 (1974-12-01), Chen
patent: 3879834 (1975-04-01), Johnson
patent: 4014202 (1977-03-01), Van Allen
patent: 4071936 (1978-02-01), Smith
patent: 4107964 (1978-08-01), Smith
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