Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1977-11-07
1979-09-25
Larson, Lowell A.
Metal working
Method of mechanical manufacture
Assembling or joining
29772, 227 45, B23P 1100
Patent
active
041685660
ABSTRACT:
A nailing machine is utilized in conjunction with particular conveying apparatus and an associated processing system to nail deck boards to stringer beams transversely thereof so as to manufacture either single or double deck wooden pallets. Conveyors are mounted on either side of the nailing machine in such a way as to permit contact elements thereon to readily engage the lead stringer beam of either single or double deck pallets under construction and index them forwardly to predetermined positions where additional stringer beams are nailed in place to deck boards.
For making double deck pallets, half pallets having a first deck thereon are side fed with their stringer beams up into an input position on the input side of a nailing machine adjacent to a deck board hopper. A single pusher operates to simultaneously deliver a second set of deck boards from the hopper and a half pallet from its input position into the nailing machine for the nailing of the second set of deck boards in place.
Preferably, the same nailing machine is used to nail both the top and bottom decks on double deck pallets. Half pallets having a first deck nailed in place by a nailing machine are flipped over with their stringer beams up and their deck boards lying thereunder and returned by conveying apparatus to the aforesaid input position on the input side of the same nailing machine.
REFERENCES:
patent: 3195793 (1965-07-01), Hadnagy
patent: 3557439 (1971-01-01), Dykeman
patent: 3706408 (1972-12-01), Burch
patent: 3755871 (1973-09-01), Nelson, Jr.
patent: 3968560 (1976-07-01), Vial
patent: 4039111 (1977-08-01), Rogers
patent: 4054236 (1977-10-01), Paxton
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