Leather manufactures – Processes – Skiving or splitting
Patent
1977-07-05
1978-09-05
Lawson, Patrick D.
Leather manufactures
Processes
Skiving or splitting
69 41, C14B 108
Patent
active
041110137
ABSTRACT:
A method and machine for removing naturally occurring oil from animal hides, especially pig skins, which comprises passing the hides in the condition they are in at the conclusion of the conventional curing operation, with the hair side facing downward, between a small diameter solid-surfaced roll and a much larger diameter power-driven cylinder having a resiliently yieldable surface, the cylinder being above the roll so that the hair side of the hides is in contact with the roll, and the cylinder being forced down onto the roll with sufficient pressure to cause the surface of the cylinder to conform to the curvature of the roll as it and a hide move across the roll to thereby progressively subject narrow band-like zones of the hair side of the hide alternately to compression and tension forces transversely of said zones, and before the internal structure of that portion of the hide can recover from the alternate collapse and expansion of its pores that results from the compression and stretching of its hair side, repeating the action by passing the hide between a second solid-surfaced roll and the cylinder.
REFERENCES:
patent: 3236074 (1966-02-01), Cleaves
patent: 3654781 (1972-04-01), Plechac
Reis, Sr. Richard M.
Zimmerman John E.
Lawson Patrick D.
Northern Conveyor & Manufacturing Corp.
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