Page:Willich, A. F. M. - The Domestic Encyclopædia (Vol. 3, 1802).djvu/228

208&#93; 208] MI L Thomas Rustall's parish, or fa- mily-mill and bolter j for which the Society for the Encouragement of Arts, Sec. in 1800 voted him a premium of forty guineas. Description of the Plate rcpresait- ■in<r Mr. Ru stall's Familj- Mill and Bolter. Fig. 1. A, the handle of the mill. B, one of the mill-stones, which is about 30 inclies in diameter, and 5 inches in thiclvuess, moving with its axis C. D, is the other mill-stone, which, wlicn in use, is stationary; but which may be placed nearer to, or at a distance from, the moveable ktone B, by means of three screws ptis.sing through the wooden block E, that supports one end of the axis C J after it has been put through a hole orperforation in the bed-stone. The grain likewise passes through this perforation from the hopper F, into the mill. F represents the hopper, which is agitated by two iron pins on the axis C, that alternately raise the vessel cor.taining the grain, which again sinks by its own weight. In consequence of this mcticn, the corn is conveyed through a spout, that passes from such hopper into the centre of the mill behind, and through the bed-stone D. G, a paddle, regulating the quan- tity ot corn to be delivered to the milj ; and, by raising or lowering which, a lai'ger or smaller propor- tion of grain may be furnished. H, the receptacie for the flour, into which it falls from the mill- stones, when ground, I, represents one of the two wooden supporters on which the bed -stone D, rests. These are screwed to the M I L block E, and likewise morticed int^ tiie lower frame-work of the mill at K, which is conne6ted by means of the pins or wedges L, L, L, that admit the whole mill to be easily taken to-pieces. M, a fly-wheel, placed at the farthest extremity of the axis C, and on which another handle may be occasionally fixed. N, a small rail, serving to keep the hopper in its place ; the farthest part of such hopper resting on a. small pin, which admits of sutficicnt motion for that vessel, to shake for- WTird the corn. O, a spur-rail, for strengthening the frame- work of the niili. . P, the front upright, that is morticed into the frame-work, and serves as a rest for the end of the iron axis C, hich is next to the handle. — ;0n each extremity of such axis, there is a shoulder, which keeps it steady in its place. Lastly, there is a cloth -hood fixed to a broad wooden iioop, and which is placed over the stones while working, to prevent the finer particles of flour from escaping. Such is the outline of iVIr. Kust- all's useful' mill ; but, as a bolter„ or sifter, becomes necessary for se- parating the flour frcni the bran, he has contrived a machine upon a simple and excellent construction, of which the reader will find a de- lineation in the same plate, ■ Fig. 2, represents this bolter, with its fiont removed, in order to display its interior structure j the machine being three feet tenine'es in length, li) inches in breadth, and 18 inches in depth. A, is a moveable partition, slid- ing about four feet backwards or forwards, from the centre of the box, upon two wooden ribs, which are