Woodworking – Special-work machine
Patent
1994-12-19
1996-06-25
Bray, W. Donald
Woodworking
Special-work machine
144362, 144 2410, 100121, 100176, 492 30, B27M 102, B30B 920
Patent
active
055291007
ABSTRACT:
A veneer dehydrating apparatus is disclosed which is intended to squeeze out part of water contained in green softwood veneer. The apparatus includes a pair of parallel rolls assemblies rotatable in opposite directions and disposed one above the other to be spaced apart from each other thereby to define an open nip between the circumferential peripheries thereof, and a conveyer for feeding successively sheets of green softwood veneer with the fiber orientation thereof directed along the feeding direction into said nip. One of the roll assemblies has formed on the peripheral surface thereof a number of individual projections pierceable into said veneer sheet at the nip. Each projection has a pyramidal shape with N faces, wherein N represents an integral number of four or more. The paired roll assemblies are spaced apart from each other to provide the open nip such that the shortest distance between the peripheral surfaces of said roll assemblies facing each other is larger than the radial height of said projections and corresponds to about 75 to 90 percent the thickness of the veneer sheet.
REFERENCES:
patent: 4691629 (1987-09-01), Koba
patent: 4718338 (1988-01-01), Koba
patent: 4790360 (1988-12-01), Clarke et al.
patent: 4796680 (1989-01-01), Koba
patent: 4850404 (1989-07-01), Koba
patent: 5179986 (1993-01-01), Beuving et al.
patent: 5234040 (1993-08-01), Koba
Bray W. Donald
Meina Machinery Works, Inc.
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