B - Operations – Transporting – 21 – J
Patent
B - Operations, Transporting
21
J
154/130, 78/20
B21J 13/06 (2006.01) B21J 7/42 (2006.01) B27D 1/04 (2006.01) B32B 21/14 (2006.01)
Patent
CA 1110154
ABSTRACT A laminated plywood hammerboard for a drop forge press comprised of a series of plies of hard, high density wood preferably of the order of a peeled hard maple veneer with the grain of at least most of said veneer plies running along its length, each of said plies of the hammerboard having a thickness in the range of 1/32" to 3/16", and glue deposited between the plies securing the plies together and providing a relatively large number of hard glue surfaces enhancing the wearability of the board, said plies having opposite edges positioned for edgewise engagement with lift rollers on a drop forge press.
303407
Rogers James G.
Rogers Peter T.
Rogers Richard J.
Rogers Thomas E.
Marion Plywood Corporation
Smart & Biggar
LandOfFree
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