Steel pipe rolling mill

Details Steel pipe rolling mill Steel pipe rolling mill

1981-10-20

1983-06-14

Larson, Lowell A.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72 95, 72239, B21B 3108

Patent

active

043875840

ABSTRACT:
The present invention relates to an apparatus for changing the rolling-mill rolls and disk shoes of steel pipe rolling mills. The apparatus comprises mechanisms for raising and lowering a top and bottom cradle each holding a roll of a rolling mill and a carriage disposed below the bottom cradle and movable transversely, whereby the cradles are moved in and out of the rolling mill housing transversely by the carriage, and a plurality of holding devices each rotatable about a fixed shaft are selectively positioned opposite to a pair of chocks holding a pair of disk shoes for movement in parallel motion thereby changing the disk shoes.

REFERENCES:
patent: 661470 (1900-11-01), Fawell et al.
patent: 3143011 (1964-08-01), Sieger
patent: 3566653 (1971-03-01), Unrath
patent: 3845646 (1974-11-01), Bellmann et al.

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