Roll

Details Roll Roll

1986-07-31

1988-08-02

Rosenbaum, Mark

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

291295, 291131, B21B 2700

Patent

active

047606312

ABSTRACT:
An improved roller apparatus for treating material webs, in which energy requirements are reduced by decreasing losses caused by fluid turbulence. The apparatus includes a cylindrical, hollow roll, supported on a shaft by hydraulic fluid under pressure. Longitudinal seals subdivide the area between the roll and the shaft into chambers. As the roll rotates, a fluid flow is established within the cylinder, in the direction of rotation. Rather than allow the fluid to establish a turbulent return flow path within each chamber, a return path isolated from the rotational flow is provided. One such return path is a group of channels formed transversely through the shaft, or alternately, recesses can be formed circumferentially in the shaft, covered to separate the return flow from the rotational flow.

REFERENCES:
patent: 4187594 (1980-02-01), Appenzeller
patent: 4188698 (1980-02-01), Appenzeller
patent: 4447940 (1984-05-01), Appenzeller et al.

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