Woodworking – Process – Timber harvesting or processing
Patent
1992-02-04
1993-03-30
Bray, W. Donald
Woodworking
Process
Timber harvesting or processing
144208B, 144380, B27L 100
Patent
active
051975246
ABSTRACT:
A steam distributing valve in contact with the log feed end of a rotatable debarking drum is supported in such a manner that it is capable of moving slightly parallel to the drum axis in response to axial displacement of the drum. Full contact between the valve header and the drum end is maintained for sequentially providing pressurized steam to hollow longitudinal staves on the inner circumferential surface of the drum for thawing frozen logs for debarking.
REFERENCES:
patent: 4784197 (1988-11-01), Alander
Clarke-Pounder Ian J. H.
Johnson Donald B.
Bray W. Donald
Ingersoll-Rand Company
Palermo Robert F.
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