pusher fully Motion is given to the feed roll, as the plunger is re- An apparatus for supplying purified air to a room, back in the pan, the forward end of which is normally ciprocated by the pitmen, by bell crank lever arms, on by bringing an incoming current into contact with each side, through a… … machine to wash and separate mineral BENSON'S AIR PURIFIER. ores, the waste being lighter is passed into the transverse trough, while the antiseptics, the air then passing through a heating concentrates of mineral are taken up chamber, is illustrated herewith, and has been patent- by the elevator.…
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