Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1976-09-07
1978-11-14
Rolla, Joseph J.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209215, 209223A, B07C 504
Patent
active
041251911
ABSTRACT:
Fragments of ferromagnetic material, such as tin can pieces, are sorted by size on apparatus including an inverted conveyor that carries fragments that have been previously oriented with their longest axes placed in parallel directions past a line of magnets spaced progressively further apart in the direction of orientation of the fragments. The magnets attract the fragments strongly to the conveyor directly under the magnets, but progressively more weakly in those spaces between the magnets so that the shorter pieces separate gravitationally from the conveyor sooner than the longer pieces. Fragments having varying magnetic susceptibility, such as, for example, tin can pieces with and without attached normally round aluminum tops, are also separated according to their magnetic susceptibility by conveying the fragments beneath carefully spaced magnetic devices whereby the fragments of lower susceptibility drop from the conveyor sooner than those of higher susceptibility due to the weaker magnetic field between magnetic devices. The spacing between magnetic devices, for example, can be slightly greater than the diameter of an aluminum top in the case of the exemplary fragments.
REFERENCES:
patent: 2059229 (1936-11-01), Gregg
patent: 3042205 (1962-07-01), Merwin
patent: 3552564 (1971-01-01), Burgener et al.
patent: 3809239 (1974-05-01), Barrett et al.
patent: 3926792 (1975-12-01), Buford
patent: 4055489 (1977-10-01), Soley
British Steel Corporation
Rolla Joseph J.
LandOfFree
Magnetic separation of materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic separation of materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic separation of materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1298341