Roller supporting means for long retracting soot blowers

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction

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F23J 302

Patent

active

043609457

ABSTRACT:
Roller supporting means for the lance tube of a long travel retracting soot blower includes a pair of castering-type roller assemblies having their castering axes non-vertical. Each roller assembly is counterweighted to such extent as to substantially statically balance the assembly about its castering axis.

REFERENCES:
patent: 3216045 (1965-11-01), McColl
patent: 3604050 (1971-09-01), Nelson et al.
patent: 4207648 (1980-06-01), Sullivan et al.

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