rilAINVVORK. 



713 



Fiir. l. 



Tamt)ur- These were the general rules obicrvrd in thin buni- 

 ness ; anil the 1 "-i of 



each, will be found at the c ol tin- article. 



The cloth frame bvinx loobi-Jy suspended, and its 

 motion regnlat.-cl by the cylinder above, it was fur- 

 ther suspended I)) tliv . -<\ of the 

 hv.-i II, tin- other end of which was connected by 

 means of two stout iron wire*, with a piece of iron 

 furnished with a small friction wheel, and actin,-. 

 the rim of the perpendicular travi rs< \\li.-rl directly 

 . The tendency of the frame to de- 

 scend, produced a gentle pressure of the frictum- 

 whcrl against the rrn {' the traverse, and according 

 shape ihe tr.nnr was either lowered or raised at 

 every shih of the w 



Tlu- communication b- tween the cloth frame and 

 t)it lioti/.ont-d traverse, was effected merely by a 

 small connecting bar of iron between the edge of the 

 cloth frame ami the wheel, the rod being placed di- 

 rectly level with the centre of the wheel. The pres- 

 sure against the wheel was very simply effected, mere- 

 ly by tying a piece of whip cord to the frame, and 

 after passing it over a pulley, suspending a small 

 weight to the other extremity of the cord. A screw 

 was also attached to the breast-beam, by which the 

 cloth frame could be raised at pleasure, to present 

 fresh cloth, by shifting a notch in the suspensory 

 rod C. Thus ten or twelve rows could be wrought 

 without shifting the beams upon which the cloth 

 was stretched. The general motion was communi- 

 cated by. a leather belt passing over the pulley at N, 

 and the machine could be engaged or disengaged at 

 pleasure, by means very similar to those used for 

 other machinery When a flower was finished, the 

 ratchet wheel moved a small lever, which instantly 

 stopped the machine, in order to prevent accidents. 

 There were three trcddles below, moved by wipers 

 upon the cross shaft, by which all the motions were 

 given. The first, Pi, served to set forward the 

 needle frame, so as to produce the perforation of the 

 cloth by the needles ; the second, P 2, set in mo- 

 tion that part of the machinery which supplied the 

 needles with thread, and which is afterwards to be 

 described ; and the third, P 3, moved the ratchet- 

 wheel one tooth between - every perforation. These 

 were the chief motions in front ot the machine. Some 

 idea of those behind may be formed by inspecting 

 Fij^. 2. which is a view taken directly behind the 

 machine. 



Of the parts here visible, those which can be seen 

 in Fig. 1. are distinguished by the same letters. The 

 remaining parts are as follow : At Q is a roller or 

 cylinder of wood, which gives motion to the needle 

 frame ; it is operated upon by a chain or wire, com- 

 municating with the treddle, which produces the per- 

 forating motion, and returns by the gravitation of a 

 weight suspended from a stud in the opposite side of 

 the cylinder, as soon as the pressure is removed. At 

 R appears that part of the machinery which, by 

 the operation of the treddle P 2, gives the rota 

 tory motion which supplies the needles with the 

 yarn, and which will be better understood by refer- 

 ring to Fig 2. in Plate CXXXVI. At T, Fig. 2. 

 Plat*- CXXXVI. isa lever suspending a weight which 

 elevates the ratchet R, as scnm as the pressure of the 

 w .1 is removed from the treddle. At S 13 a guide 

 by which the motion of the ratchet is regulated. At 



VOL, V. PART II. 



U U the weight which produce* the returning mo- Tambour- 



<!le to the front, after being iupplied 



with the thread. At V, V are two itnds driven or * ~~<~* 

 screwed into tin- roller Q, with joints, by which the 

 connection is formed with the back part of the 

 carriage, to produce it* reciprocating mo- 

 tion. 



In Fig. 3. is a profile elevation of the left hand p t T 

 part of the machine, or that most remote from the CXXXVI. 

 traverse wheels, and contiguous to the part where F'fr * 

 the moving power is applied. In this Figure the up- 

 per part of the cloth frame appear* at C, with one 

 of the ratchets for distending the cloth. The up- 

 per roller is at G, and the balance weights guided 

 by the pulleys at C, appear at L. At O is the cen- 

 tre of the shaft which carries the wipers, and at Q 

 the back roller, as in the pr ^urts. At a 



is a piece of iron by which is suspended an iron bar, 

 which opens and shuts the barbs or hooks of the 

 needles. At b is a profile of the needle carnage. 

 At E is the needle frame, the form of which is now 

 more apparent. At d is a screw which serves as a 

 stop for the carriage, and which may be tempered 

 at pleasure. 



In Fig. 4-. the forms of the traverse wheels be- Fie. 4. 

 come more apparent ; 1 being the rachet, 2 the ho- 

 rizontal, 3 the perpendicular, and 4 the needle tra- 

 verses. At 5 and 6 are the centre screws, in which 

 the axis revolves. 



In Fig. 5. Plate CXXXVI. is a horizontal section fig.S. 

 of the machine immediately above the needle-frame. 

 In this figure, many parts, partially or wholly con- 

 cealed in the former, may be seen in their proper 

 forms. The letters of reference denoting the paiti- 

 cular parts are preserved the ame as in the -former 

 figures, and a short recapitulation, with such occa- 

 sional remarks as may occur, will probably be suffi- 

 cient for the purpose of further illustration. Let 

 the frame work be supposed to be cut asunder im- 

 mediately above the level of the needle frame, and 

 the six posts which support and connect the frame- 

 work, will be represented by the letter A, six time* 

 repeated. Of this frame- wOrk, the larger depart- 

 ment at the left hand contains the general part of 

 the machinery, whilst ihe smaller part to the rig! 

 exclusively appropriated for that portion which is 

 peculiarly constructed for the formation of the pat- 

 terns. At C appears a horizontal section of the 

 cloth-frame, the top rail and upper roller being cut 

 away. Immediately below the upper roller is a cross 

 bar placed with its edge towards the cloth, and ano- 

 ther bar exactly similar is pLcrd below. These 

 serve to keep the superficies of the cloth al\s ays at 

 an equal distance from the points of the needles ; as 

 the diameters of the rollers are constantly varying 

 by the cloth being unwound from one aud rolled upon 

 the other. At E is the horizontal view of the needle- 

 frame, consisting ot two strong iron bars, placed pa- 

 rallel to each other, at the distance of about four 

 inches, with their edges upwards. Of these, the bar 

 nearest to the front of the machine is perforated with 

 Mnall round holes at equal distances, the, centres of 

 the whole being exactly in the same straight line. 

 The front bar, or that nearest to the cloth, is cut 

 into triangular notches, also at equal distances, and 

 which serve for the second support of the needle- 

 handle. The triangular form was found superior te 

 4 x 



