Spiral-flow barrel finishing machine

Details Spiral-flow barrel finishing machine Spiral-flow barrel finishing machine

1997-02-26

1998-10-20

Rose, Robert A.

Abrading

Machine

Tumbling device

451327, 451328, 451329, 451330, 451104, 451117, B24B 3102

Patent

active

058238611

ABSTRACT:
This invention relates to a spiral-flow barrel finishing machine having a cylindrical stationary metallic barrel equipped with a lining layer at a lower inside portion. A rotating barrel is equipped with a lining layer on a metallic rotational body and is loosely engaged with the lower part inside of the cylindrical stationary barrel so as to rotate freely. A constant clearance is kept between the inner wall of the stationary barrel and the outer wall of the rotating barrel, regardless of the temperature change and the moisture content change. A measure to allow for thermal expansion having a specific vertical width, properly corresponding to the vertical width of the clearance, is circularly arranged between the inner wall of the metallic stationary barrel and the outer wall of the lining layer on the metallic stationary barrel. This makes an allowance for thermal expansion of the lining layer on the stationary barrel toward wall side of the metallic stationary barrel.

REFERENCES:
patent: 4850151 (1989-07-01), Ditscherlein
patent: 4884372 (1989-12-01), McNeil
patent: 4958776 (1990-09-01), Walther
patent: 5012620 (1991-05-01), McNeil
patent: 5189842 (1993-03-01), Kabayashi et al.

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