Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1980-02-20
1982-03-16
Shedd, Wayne L.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
B21B 1302
Patent
active
043193900
ABSTRACT:
The disclosure concerns a roller for use in pressure treatment of webs of material, or the like. The roller includes an annular roller shell and a beam support extending through the roller shell. The pressure on the roller shell is transmitted through a supporting element to the support within the shell. The supporting element includes a sleeve that is received in a recess in the support. The sleeve is connected with a source of pressurized liquid through a conduit in the support. The sleeve opens toward the shell. A spring normally urges the sleeve toward the shell. The sleeve is closed in the space between the support and the shell except where it opens toward the shell. The inner diameter of the section of the sleeve closer to the shell is approximately the same as the outer diameter of the sleeve more remote from the shell for improving the hydrodynamic force exerted by the "plug" of pressurized liquid inside the shell.
REFERENCES:
patent: 3835690 (1974-09-01), Leonhardt et al.
patent: 4186472 (1980-02-01), Biondetti
patent: 4228571 (1980-10-01), Biondetti
J. M. Voith GmbH
Shedd Wayne L.
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