Jahrgang 
20 (1801)
Seite
146
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146 Specificaticn of Mr. Leſters Patent.[March

and lowered alternately by the motion of the crank prefſmg, and holding- firm the article while the knife makes the cut. G, the crank that raiſes and falls the treadle, which is connedted to the preſs. H, the lever, the upper end.of which is fixed on the crank, with a pair of braſſes held firm by a ſtaple ofiron, thc lower énd conneâed to the treadle by a moveable joint. I, the trea- dle, with the lower end fixed to the frame by a ſtaple and bolt of iron, on which it moves. K, the iron frame to which the preſs F and index X is fixed, which it raiſes and falls by an upright bar fixed to the treadle, both ends of which move upon iron bolts., the ſteel which guides the knife to the cut. M, the upright motion fixed to the centre of the preſs, by which means it/is raiſed and lowered in a perpen- dicular dire&tion. N, ſhewing the vacant ſpace betwixt the preſs and the article to be cut, at the inſtant of feeding, which prevents the machine or engine from ever being choaked up by any ſubſtance it may be cutting, and by which means the article is brought regular and accurately forward without any thing to impede its motión. Z, the handle fixed to the fly wheel by a hut and ſcrew, with which the machine or engine is worked.

Figure 2. A ſide view.O, the box in which the article is laid fo be cut. P, the moveable weight which is placed upon the article to keep it down to the moveable bottom, and to over- come the fri&ton betwixt the article and the ſides of the box, which weight, when worked) up to the guard muſt. be moved back to the hiñd part of the box. QQ, the two cylinders that move upon their own centres, the ſurface of the firſt rough, and the hind one ſmooth. R, the dotted lines from one cylinder to the other, repreſent the moveable bôttom, which by the motion vf the firſt rough cylinder worksper- petually round the ſmooth one behind, and may be made of ſack- ing, leatber, or-any other pliant fubſtance, that will hang firmly to the rough ſurface of the firſt cylinder. 8, a male ſcrew and nut to daw back the iron frame in which the hindermof cylin- der is fixed, to tighten the bottom occafionally. T, theratchet wheel fixed upon thé dis of the firſt cylinder; ſeveral of theſe wheels a e neceſlary, with various ſized teeth: to cut the whole variety of lengths that are required for the different ſubſtances, to which this machine orengine may be applied to cut. UU, two levers conneéted together by the bar V, with moveable

joints., a catch. on a moveable joint which moves the

ratchet wheel more or leſs in proportion to the raiſing of the

levers. X, the regulating index fixed with two nuts upon a.

male ſcrew to a ſtaple fixed to tbe iron frame, K, the ſetting of which by thefigures thereon raiſes and falls the levérs ac- eordinz to the lengthrequired to be cut, Y, the door that Muts-up the index when ft.