Metal working – Plural diverse manufacturing apparatus including means for... – Separate tool stations for selective or successive operation...
Patent
1989-08-09
1990-08-07
Briggs, William
Metal working
Plural diverse manufacturing apparatus including means for...
Separate tool stations for selective or successive operation...
29239, 294264, 83477, 83487, 83943, B23P 1904
Patent
active
049456261
ABSTRACT:
An apparatus for unnailing wood pallets includes a frame, a first cutter assembly and a second cutter assembly positioned vertically above the first. The first cutter assembly includes a pair of elongated horizontal support arms supporting a cutting head at one end, downwardly biasing springs at an opposite end and a pivot between the ends. The second cutter assembly includes a pair of elongated horizontal support arms supporting a second cutting head at one end and a pivot at an opposite end that is coaxial the pivot of the first cutter assembly. The second cutter assembly is biased upwardly by springs between its support arms and those of the first cutter assembly. A stringer return member is horizontally movable with a pallet-moving cradle and includes a member which is pivotally mounted to the cradle at one end and has a follower at an opposite end to follow a track that moves with the support arms in order to keep the member positioned between the pair of support arms. Each cutting head includes a pair of circular cutting blades having an outer portion that is hardened and a center portion that is left ductile. A sacrificial backing block on the pallet-moving cradle forces the pallet against the blades so that if any contact is made between the cradle and the blades, the sacrificial member, not the blades, will be damaged.
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Boogaard Craig
Brunsting Rodley
Dykstra Gerald L.
Briggs William
Industrial Resources of Michigan
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