Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1987-03-17
1989-12-19
Hajec, Donald T.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209673, 384 99, 384114, 384116, B07C 506, F16C 3206
Patent
active
048877239
ABSTRACT:
This invention relates to an apparatus for sorting round bearings according to their diameters, having a pair of elongated sorting cylinders which are supported on diverging longitudinal axes. Each of the cylinders are supported near each end of the cylinders by upper and lower bearing blocks which extend about a portion of the upper and lower circumference of the cylinders. The lower bearing block is provided with air under pressure for forming an air cushion between the curved surface of the bearing block and the circumferential surface of the cylinders to support the cylinder with little or no friction. Each of the sorting cylinders are also supported by a support shaft which extends beyond the ends of the cylinders. This shaft is supported by self-aligning bearings which, in turn, are supported by a stabilizer mechanism which permits limited vertical motion of the shaft and the cylinder. The shaft is permitted to rise vertically at a faster rate than it is permitted to fall vertically. The combination of the stabilizer and the air cushion bearings maintain the cylinder at a cooler and constant sorting temperature and permits sorting within an hour of start-up rather than having to wait for as long as twenty-four hours after start-up to begin to sort accurately.
REFERENCES:
patent: 3697142 (1972-10-01), Fortier
patent: 3703322 (1971-11-01), Gustafsson
patent: 3994397 (1976-11-01), Christ
patent: 4128282 (1978-12-01), Bost
patent: 4172527 (1979-10-01), Bost
patent: 4632574 (1986-12-01), Wilson
patent: 4643592 (1987-02-01), Lewis et al.
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