B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
B24B7/07—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a stationary work-table
B24B7/08—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor involving a stationary work-table having an abrasive wheel built in
Dispositif nettoyable et qui ne s'engorge pas pour l'injection de gaz dans des conteneurs ou des conduits pour un liquide contenant des impuretes ou des corps etrangers, tel que des vasques d'epuration, conduits d'egouts ou similaires.