Apparatus for trimming back fat off a pork shoulder butt

Details Apparatus for trimming back fat off a pork shoulder butt Apparatus for trimming back fat off a pork shoulder butt

1989-12-22

1990-11-20

Little, Willis

Butchering

Defatter

452149, 452177, A22B 516, A22C 1712

Patent

active

049707558

ABSTRACT:
The apparatus for trimming a layer of back fat off a pork shoulder butt comprises a frame as well as a flat, flexible and arcuate cutting blade with two ends respectively attached to a pair of blade holders pivotally mounted onto the frame. A conveyor, a set of upper gripper belts, and a rotative roller pass the shoulder butt through the blade to trim off the layer of fat. The rotative roller has a diameter gradually decreasing along its longitudinal axis from each end of the roller toward the center thereof to define an annular, concave outer surface. This roller is mounted onto the frame adjacent the arcuate blade on the outside of the curve this blade defines but with a distance separating the annular surface and the blade to enable passage of the layer of fat between them. The annular outer surface of the roller is formed with teeth to engage the fat whereby rotation of the roller forces the shoulder butt through the blade. The two blade holders are pivoted to adjust the arcuation in the blade and the distance separating the annular concave surface and this blade to an inner profile and a thickness of the layer of fat whereby trimming of the latter layer is optimized.

REFERENCES:
patent: 3197808 (1965-08-01), Mears
patent: 3352011 (1967-11-01), Alexander et al.
patent: 3546737 (1970-12-01), Neebel et al.
patent: 3685095 (1972-08-01), Metro
patent: 3771196 (1973-11-01), Doerfer et al.
patent: 4009652 (1977-03-01), Anderson
patent: 4189806 (1980-02-01), Van Heyningen
patent: 4557014 (1985-12-01), Vogt

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