Work holders – Work-underlying support – Movable roller
Patent
1980-11-06
1982-07-13
Watson, Robert C.
Work holders
Work-underlying support
Movable roller
269296, 269303, 269910, B30B 300
Patent
active
043391176
ABSTRACT:
Apparatus for forming a wood roof truss, or the like, comprising a system which includes a wood member positioning and upper fastener engaging station for arranging and maintaining wood members in positions corresponding to the ultimate positions of the wood members in the completed truss, a fastener embedding station for permanently anchoring upper and lower fastener in the wood members to fix the wood members in their ultimate positions with respect to one another, and a wood roof truss stacking station for automatically moving a completed wood roof truss from a substantially horizontal position to an upright position. The wood member positioning and upper fastener engaging station includes wood member receiver having associated therewith unique truss elevating and advancer for quickly and simultaneously raising the partially fixed wood members of the truss, thereby enabling the wood members to be rapidly moved, as a unit, to the next station in the system. The system requires minimal operating personnel, and eliminates the need for any manual lifting of a truss by such personnel.
REFERENCES:
patent: 3172125 (1965-03-01), Sanford
patent: 3375778 (1968-04-01), Newman
patent: 3693542 (1972-09-01), Moehlenpah
patent: 3925870 (1975-12-01), Adams
patent: 4063498 (1977-12-01), Labellarte
patent: 4154436 (1979-05-01), Sellers
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