Material or article handling – With weighing
Patent
1979-01-24
1981-04-28
Paperner, Leslie J.
Material or article handling
With weighing
198488, 198774, 221266, 414 60, 414 83, 414129, B65G 5726
Patent
active
042642531
ABSTRACT:
Method and apparatus for forming a stack of elongate articles, such as lumber, by vertically laying successive lumber courses and providing sticks between adjacent courses includes a conveyor operable for transferring a course to be stacked to a first station, a course positioner disposed adjacent the conveyor operable for selectively elevating a course as a unit and shifting it into position above a stacking station and a stick placer disposed above the stacking station operable for selectively depositing sticks generally transversely to the lengthwise dimension of the course at laterally spaced locations thereon. Further, the positioner includes elongate members rotatably mounted on a carriage, the elongate members being operable, during rotation thereof, for selective positioning above and below the riding surface of the conveyor to thereby raise and lower a course relative to the conveyor. The carriage is reciprocally shiftable relative to the direction of transfer of the conveyor for selectively locating the elongate members adjacent the first station and the stacking station. The stick placer includes a driven rotary feed operable for periodically receiving sticks and directing them through a predetermined angular displacement and periodically releasing them onto successive courses. The rotary feed includes a plurality of rotatable wheel sets disposed above the stacking station adjacent locations where the sticks are to be deposited, and each wheel set is disposed beneath a stick-containing bin and includes a pair of opposed, spaced-apart concentrically mounted wheels operable for receiving sticks.
REFERENCES:
patent: 2393961 (1946-02-01), Almgren
patent: 2792922 (1957-05-01), Malhiot
patent: 2861702 (1958-11-01), Mason
patent: 2998147 (1961-08-01), Rysti
patent: 3169646 (1965-02-01), Mason
patent: 3217859 (1965-11-01), Bartlo et al.
patent: 3737072 (1973-06-01), Deitrick
patent: 3738510 (1973-06-01), Mason
patent: 3823834 (1974-07-01), Rysti
patent: 3968886 (1976-07-01), Leon
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