Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1976-12-10
1978-08-08
Knowles, Allen N.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
B07C 100
Patent
active
041051246
ABSTRACT:
A conveyor belt is inclined from horizontal along its longitudinal axis at a preselected angle and is used to separate spherically-shaped rolling solids from irregularly-shaped nonrolling solids. The spherically-shaped solids roll down the inclined upper surface of the conveyor belt until they are removed from the belt. At a preselected area on the belt, the downward movement of the rolling solids is controlled by jets of gas blown up the belt. The force of the jets of gas may be quickly varied to hold the proper amount of spherically-shaped solids on the belt and also prevent the belt from being flooded by a mixture of unseparated solids. This responsive gas control facilitates separation and upward movement of the nonrolling solids. Most of the nonrolling solids eventually move to an upper point on the belt where they are removed. The upward movement of the irregularly-shaped nonrolling solids is preferably controlled in a way which facilitates the freeing of rolling solids trapped by the upward movement of the nonrolling solids. The momentum and direction of the solids being fed onto the belt may also be adjusted to further control and increase the separating efficiency of the system.
REFERENCES:
patent: 661802 (1900-11-01), Hilleary, Jr.
patent: 1140236 (1915-05-01), Aynes
patent: 1404363 (1922-01-01), Grimsrud et al.
patent: 2318976 (1943-05-01), Stevens
Atlantic Richfield Company
Folzenlogen M. David
Knowles Allen N.
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