Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Sorting lumber – logs – pipes – rails – or like items
Patent
1978-03-22
1980-04-01
Paperner, L. J.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Sorting lumber, logs, pipes, rails, or like items
198418, 414 41, 414 77, 414276, 414786, B65G 4719
Patent
active
041957377
ABSTRACT:
A method and apparatus for handling elongated articles, such as elongated pieces of timber of different types, includes a plurality of compartments for receiving the articles of the different types with each compartment receiving only one type of article. A plurality of inclined partitions define the several compartments between themselves with each partition having an upper surface down which elongated articles received in a compartment can slide. An upper conveyor conveys the articles past top open ends of the compartments while suitable selecting structure selects articles from the upper conveyor to deflect articles of a given type therefrom into a given compartment. A releasable holding structure adjacent at the bottom end of the plurality of partitions holds the articles deposited in the compartments to prevent the articles from sliding out of lower open ends of the compartments, with the articles deposited in each compartment forming therein a single layer on the upper slide surface of a partition. A lower conveyor extends across bottom open ends of the several compartments and the releasable holding structure can be actuated by suitable controls to release a layer of articles from a given compartment to slide down a partition onto the lower conveyor, the latter delivering the articles in the form of a single layer to a device such as a timber packaging device which requires the articles to be delivered thereto in the form of a single layer, so that in this way the latter device can receive the articles directly from the lower conveyor onto which the articles are deposited from the compartments only in the form of a single layer.
REFERENCES:
patent: 1784273 (1930-12-01), Constable
patent: 3116835 (1964-01-01), Brandon
patent: 3155245 (1964-11-01), Brandon
patent: 3231104 (1966-01-01), Lawrence
patent: 3361272 (1968-01-01), Carroll
patent: 4081088 (1978-03-01), Rysti
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