In all small turn-tables a conical bearing of hardened steel, properly lubricated, is sufficient for the purpose, but in the larger work it is desirable to employ ball-bearings. Whichever method is used, it is essential that the table turns very freely so that it can be moved almost with a touch.
Fig. 87.—Aerograph Turn-table.
Fig. 88.—Two Forms of Fumexer.
Fig. 89.—The Fumexer in Use.
Fig. 90.—A Paasche Turn-table.
Fig. 90 shows the Paasche turn-table, which can be raised or lowered into suitable positions as well as tilted at any angle. It revolves freely with a gentle touch. Larger sizes are supplied. The necessity of providing for carrying off the fumes which arise in paint spraying has already been dealt with.