LIME MACHINE LATELY ADOPTED.

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inid placed with its apex downwards. It is sur-rounded by an iron stage, supported upon pillars,as shown in the design.

Within this vessel, which in fact composes onlythe outer case of the apparatus, is contained anoblong trough 13, fig. 2, plate II., (it is shown inthe design as if broken down), moveable upon anhorizontal axis, fixed to one of its longest sides,so that by means of the wheel C, or lever communi-cating with the axis, and applied on the outside ofthe machine, the trough B, may be inverted, andits contents discharged into the exterior case, orlower part A, A, of the machine. The part B, ofthe machine is called the lime trough, because it isdestined to contain the quick-lime and water, bymeans of which the crude coal gas is purified.Within this trough B, is inverted an oblong rectan-gular box D, closed at top and open at bottom,called the air-box, because it receives the gas tobe purified.

In each of the longestsides of the box D, areperpendicular openings or slits (as shown in the de-sign) exactly opposite to each other. Through thewhole length of this box D, passes a horizontal axisfurnished with as many teeth or clawsas there are up-