Sand muller reconditioning method and structure

Details Sand muller reconditioning method and structure Sand muller reconditioning method and structure

1977-06-20

1978-11-28

Lanham, C.W.

Metal working

Method of mechanical manufacture

Converting

366241, 366242, 366244, 366255, 241601, B23P 700

Patent

active

041269225

ABSTRACT:
A sand muller reconditioning method and structure in which the bottom of the sand muller'vessel is reestablished into a generally planar or flat attitude after prolonged use of the muller has resulted in a wide groove-like circular wear path in that bottom beneath the sand muller's plow. The method and structure includes defining an inner circumferential seat, and an outer circumferential seat, in the vessel's bottom, those seats being disposed inside of and outside of, respectively, the circular wear path previously formed in the bottom. A wear plate comprised of multiple arcuate sections is then sized to fit in the inner and outer seats for eliminating the circular wear path, the wear plate being fixed to the vessel's bottom by bolts cooperating with tapped bores in the bottom. Preferably, and centrally of the wear plate between the inner and outer peripheral edges thereof, a spacer seat is also defined in the vessel's bottom, a spacer being located in the spacer seat to support the wear plate between its inner and outer peripheral edges as it is tightened down against the vessel's bottom by the bolts.

REFERENCES:
patent: 2117977 (1938-05-01), Nicholls, Sr.
patent: 3325045 (1967-06-01), Habozit et al.
patent: 3542299 (1970-11-01), Sholl
patent: 3767127 (1973-10-01), Wood
patent: 3982702 (1976-09-01), Barnhart et al.

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