B - Operations – Transporting – 65 – B
Patent
B - Operations, Transporting
65
B
100/11
B65B 13/06 (2006.01) B30B 9/30 (2006.01) B30B 15/00 (2006.01) B65B 27/12 (2006.01)
Patent
CA 1328771
ABSTRACT OF THE DISCLOSURE A method and apparatus for compressing fibrous material into dense bales having uniform size, shape and weight. Weighed longitudinally extended charges of material having a predetermined transverse dimensional profile are individually loaded into a compression chamber defined by side plates and first and second movable end platens. A long-stroke small-diameter hydraulic piston pushes the first end platen against the charge toward the second end platen, partially compressing the charge. The first end platen is then latched in a fixed position at full stroke while the second end platen, via a short- stroke large-diameter hydraulic piston, applies a further compressive force to the charge against the first end platen. The resulting fully compressed charge is pushed out of the compression chamber, bound loosely while still fully compressed, then released, whereupon the bale longi- tudinally expands into the bindings to a predetermined length. As the large-diameter piston retracts to begin the subsequent compression cycle, hydraulic oil is routed therefrom to other hydraulic cylinders to effect retrac- tion thereof, thereby lessening demand on the hydraulic pump, saving energy and reducing cycle time.
587867
Doiron Eric U.
Miles Thomas R.
1997 Mary Stewart Miles Trustee Of The Credit Shelter Trust Created U
Smart & Biggar
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