Page:Willich, A. F. M. - The Domestic Encyclopædia (Vol. 4, 1802).djvu/180

•54] STR cured both above and below, and in which the knives are moved by small rollers, as described fig. Q. m, vt, (scarcely legible iu the plate) nre the cushions or guards, V'hich push forward tl.e straw, contained in the box : thisobje6t is especially promoted by the springs, n, n, that compress the cushions, and oiig'it, therefore, to be suffici- ently strong and elastic : but, ac- cording to a later improvement of Count RiEscH, wood-screws placed on guard-boards, instead of cus- hions, more eftedlually answer the purpose. S, S, the regulating pins, by means of which the straw may be cut to any length required. T, T, (being very minute in our plate) represent the diameter of the two levers. U, U, (below the last-mention- ed letters) are small cornices. Fig. 2, a side view of the en- gine, in which the whole length of the box is delineated : and, as by the mechanism of this' contrivance the straw is pushed forward, the parts by which such purpose is ef- fected, are here^ distinctly repre- sented : 1. The knife C. 2. For the illustration of K, and L, see Fig. 6. 3. The ratch-wheels H, as ex- hibited in another poiut of view. Fig. 3 and 4. 4. The arms M, M. 5. The lever N. 6. The regulator S. y. The cornice U. 8. The lever T, in full length, and to the extremity of which, a sufficient quantity of lead is at- tached, to prevent it from remaining fctaiionar)', when elevated. Q. The canvas v, which is far- ther explained in Fig. A, and IJ. STR 10. The lower transverse hole 0, which is displayed in Fig. 11, and 12 j as likewise is w, in Fig. 11. Fig. 3, a sketch of the inner part of thebox, with its compressing boards H, H, H, which are deli- neated in Fig. 2, and 1 1 ; but a pro- tile of which, exhibiting their iron teeth or cogs, is given Fig. 8, H, H, H, H. Fig. 4, also repre^nts the inner breadth of the box, though from the lower part, as far as the regu- lating wheel ; — farther, the canvas V, on which the straw is placed : the latter is carried along by the rotary motion of the wheels, ac- cordingly -as the arms are a6ted upon by the lever, — ^The letters r and R, occurring in, and at the side of this figure, will be accounted for in the description of the fol- lowing. Fig. 5, is an indented piece of machinery, called the straw-lhrus- ter, delineated Fig. 2, and which is attached below the feeding-box in front of the frame, being marked by G. Fig. 2, and 1 1 . This thruster rises together with the levers ; as it is intimately connet'-led with the arms Z, into which the knives are inserted, having the size of the piece denoted by the letter R, (Fig. 4), and the aperture, through which it passes at the bottom" of the box, being visible at r. Fig. 6, is the socket supporting the roller e, by means of the pi- vot P, represented Fig. 10, and which roller moves as may be per- ceived by tlxg upper beams marked L, L, at K, K, Fig. 2. Fig. 7> section of part of the bram in which the knives C, C, of Fig. 1, and 2, move in I, I ; so that they may be plac-ed higher or lower : hence their scope or extent of mo- tiou