Roll or roller – With inflatable chamber – Antideflection means
Patent
1992-02-25
1993-03-02
Eley, Timothy V.
Roll or roller
With inflatable chamber
Antideflection means
492 7, B21B 3132, B60B 922
Patent
active
051897750
ABSTRACT:
A deflection controlled roll has a rotatable shell supported on a non-rotating central beam by a plurality of individual shoes which are positioned transversely of the beam between the beam and the shell. A curved semicylindrical surface of the shoe bears against an inside surface of the shell and is hydrodynamically lubricated by an oil film, in the nature of a plain bearing. The shoes are biased by inflatable air lift bellows which are positioned within recesses within the shoe, between the shoe and the beam. The shoes are mounted on the beam on pins which provide at least three degrees of freedom of movement. An improved drive for the roll shell has a cog belt sheave mounted on the shell in concentric relation to one of the shell support bearings. A cog-type drive belt is threaded on the sheave, and a drive pulley for the drive belt is positioned normal to the direction of shell deflection such that the deflections do not change the spacing between the pulley and the sheave.
REFERENCES:
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patent: 3543366 (1970-12-01), Collet
patent: 3779154 (1973-12-01), Arendt
patent: 3846883 (1974-11-01), Biondetti
patent: 4007522 (1977-02-01), Hold et al.
patent: 4214354 (1980-07-01), Lehmann
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patent: 4373238 (1983-02-01), Guttinger
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patent: 4472865 (1984-09-01), Schiel et al.
patent: 4856156 (1989-08-01), Link et al.
patent: 4913051 (1990-08-01), Molinatto
Beloit Self-Loading Controlled Crown Roll, Beloit Corporation B-302 (Apr. 1989).
Eley Timothy V.
Martin C. Richard
The Black Clawson Company
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