Baler

Presses – Reciprocating press construction – With material displacing means

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Details

100 3, 100100, 100245, 100255, 100272, 100286, 292254, 292DIG18, B30B 1532

Patent

active

RE0287482

ABSTRACT:
A baler having an improved hydraulically driven toggle mechanism for operating a baler pressing platen, improved bale ejector, and improved baler door latch. The toggle mechanism includes opposed pairs of first and second arms foldably joined together at their ends with their other respective ends joined to a pressing box and a pressing platen. The opposed sets of arms are mutually oriented so that as the platen is moved to a withdrawn position, the first and second arms of one set interfold compactly and without interference across the respective first and second arms of the opposed set [and second arms, each first arm of which is a generally C-shaped bell crank arm. The first arms are connected] to provide a pressing mechanism which is compact but nonetheless has a long pressing stroke to facilitate production of a large bale in only a few pressing strokes. The bale ejector comprises a lifting plate having a hook which when engaged by a finger secured to the platen lifts the underside of a bale from the rear of the box as the platen is raised to cant the bale onto its forward edge permitting its easy removal from the baler. The lifting plate hook travels in a slot in the baler rear wall and is disengaged from the platen finger by a stop across the slot to drop the lifting plate to the bottom of the box in position for commencement of pressing of a new bale. And, the door latch comprises a rotatable pin and pivotal catch having arced and arcuate surfaces respectively which roll against each other during opening of the door latch to provide an easy opening door latch even when under heavy pressure from a compressed bale.

REFERENCES:
patent: 1040396 (1912-10-01), Paal
patent: 1126073 (1915-01-01), Peterson et al.
patent: 1856531 (1932-05-01), Berg
patent: 2243205 (1941-05-01), Hall
patent: 3195447 (1965-07-01), Taylor
patent: 3280727 (1966-10-01), Jonas
patent: 3469530 (1969-09-01), Walker
patent: R9897 (1881-10-01), Riesel

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