Chap. 10.] APPLICATION OP THE MACHINES.

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ARTICLE 92.

A GRIST MILL FOR GRINDING VERY SMALL PARCELS.

Fig. 16, Plate VII., is a representation of a grist-mill,so constructed that the grist being put into the hopper,it will be ground and bolted and returned into the bagsagain.

The grain is emptied into the hopper at A, and as itis ground it runs into the elevator at B, and is elevatedand let run into the bolting hopper down a broad spoutat C, and, as bolted, it falls into the bags at d. The chestis made to come to a point like a funnel, and a divisionmade to separate the fine and coarse, if wanted, and abag put under each part; on the top of this division isset a regulating board on a joint, as x, by which the fineand coarse can be regulated at pleasure.

If the bran require to be ground over, (as it oftendoes,) it is made to fall into a box over the hopper, andby drawing the little gate b, it may be let into the hop-per as soon as the grain is all ground, and as it is boltedthe second time, it is let run into the bag by shutting thegate b, and drawing the gate c.

If the grain be put into the hopper F, then as it isground it falls into the drill, which draws it into the ele-vator at B, and it ascends as before.

To keep the different grists separate;—when themiller sees the first grist fall into the elevator, he shutsthe gate B or d, and gives time for it all to get into thebolting reel; he then stops the knocking of the shoe bypulling the shoe line, which hangs over the pulleys p p,from the shoe to near his hand, making it fast to a peg;he then draws the gate B or d, and lets the second gristinto the elevator, to fall into the shoe or bolting hopper,giving time for the first grist to be all in the bags, andthe bags of the second grist to be put in their places; hethen unhitches the line from the peg, and lets the shoeknock again, and begins to bolt the second grist.

If he does not choose to let the meal run immediatelyinto the bags, he may have a box made with feet, to stand