Machine for cutting, shortening, and shearing the loose threads of machine-made laceand all similar goods

Abstract

Claims

April 7, 1925. 1,532,989 G.CORDER MACHINE FOR CUTTING, SHORTENING, AND SHEARING THE LOOSE THREADS OF MACHINE MADE LACE AND ALL SIMILAR GOODS Filed July 25, 1922 2 Sheets-Sheet l Afforzz ys 1,532,989 G. CORDIER ucnmn FOR CUTTING, SHOR'I'ENING, AND snmnme THE LOOSE THREADS OF menus MADE LACE AND ALL SIMILAR GOODS Filed July 25, 1922 2 Sheets-Sheet 2 I .722 flaw/Q2 @alaae (Zrdr A 13 z'azn ys Patented Apr. 7, 1925. GUsTAvE CORD-1BR, oi? cAnArs. nuance. Iir'Ao'HINE non cUTTr'NG, snonrmvme, AND SHEARING THE LoosE THREADS 01? MA- CHINE-MADE LACE AND ALL SIMILAR GOODS. Application filed Jul -2'5, 1922. seri'ai no. 577,403. To, all whom it may concern: Be it known that I, GUSTAVE Germ-En, a citizen of the Republic ofFrance, and residing at Calais, (s-Pas-de Calais Department) No. 4, Rue du Pont Lottin, in the Republic ofFrance, engineer, have invented a certain new and useful Machine for Cutting, Shortening, and Shearing the Loose Threads of Machine-Made Lace and all Similar, Goods. of which the following is a specification. This invention relates to a machine for cutting, then shortening, and finally'shearing off the loose threads of machine-made lace, webs, veils, flounces, curtains and like fabrics, even where the article is manufactured upon what is termed the transverse system, without being obliged to divide the entire pieces into a certain number of lengthwise or transverse parts. In carrying out the invention, 1 have embodied characterizing features of construction which are exceedingly important in producing a highly practical andefi'ective arrangement of partsfor severing the loose threads at their point of juncture with the fabric without damaging the latter in any way. More specifically speaking, I have provided a machine of the class specified which embodies, among other details, a novel reciprocating cutter disposed at right angles to a guide table which is positioned directly opposite the cutter and is such in construction as to separate the loose threads from the taut ones to effect severing of the former, these parts being disposed in spaced parallelism with respect to each other and the cutting means being arranged at right angles to the path of travel of the fabric. It is another feature of the invention in having the aforesaid guide table and cutting means relatively adjustable to eacho-ther in a longitudinal or horizontal direction to permit different stretches or hands of the fabric to be acted upon without requiring its removal from the machine. Another feature of the invention resides in the provision of pneumatic means to be used in association with the so-called guide table and the cutting'knife for 'facilitating separation of the loose threads from the taut ones to insure perfect results. The accompanying drawing shows by' way of example an embodiment of said invention together with various details and modified forms of construction. Figure 1 is a side elevation of the machine constructed in accordance with'thi-s. invention, the same being shown equipped with asingle pair of cutting blades. Fig. 2 is a front elevation of the machine. Fig. 3 is an enlarged. sidev'iew of the el'e-. ments used for cutting and shearing. Fig. 4 is a plan view of the cutting blades of Fig. 3, and of the mounting bar and the op erating bar. Figure 5 is a modified form, of thewguide v table across which the fabric travels Fig. 6 is a side viewof a modified form of the knife bar. Figure 7 is an enlarged view illustrating the manner in which the cutting blades coact with one of the loose strands of the fabric in severing the intermediate portion thereof. v In the drawings, the numeral 1 indicates the two end frames of the machine proper. 2 is a bar connecting the two frames 1. 3 is a bent bracket cast with each frame 1. i4 are the guide caps which are cast with the frames 1. 5 is a carrier slidable in the guides: This carrier or member supports the following elements, which are distributed upon almost the total length thereof. 6 are uide tongues secured to the member 5'; and are pins also secured to 5. S are regulating screws with lock nut, secured to member -51 9 are comb-shaped plates or cutting blades fittlng upon the pins 7. 10 are bolts with spring and wing-nut said bolts pass loosely i through the member 5. 11 are comb-shaped opposite plates'having a groove engaging below the'tongues 6; 12 is a control bar comprising the blocks 13 which when disposed in the spaces bet-ween the opposite plates will serve to move the latter. 14 is'a U-shaped bar or table upon whose edges the piece of work a is caused to bear during its downward motion. The two endsof said bar are secured to the brackets 3. The flanges of said U-shaped bar may have equal or unequal lengths. 15,15 are loose rollers provided with studs which enter the goods 0. on the wrong side and prevent the same from making a cross movement byreason of the motion of the plates and opposite plates of "the sectioning device.- 16 is a cross-bar having both ends secured-t0 the supports '3. ' bar 22 from turning in its bearings after ad-j 24. l 26 is a cross-piece of the frame. 17 is aplate which is reduced in thickness towards the top, thus forming analmost' sharp edge; this plate is secured to the 16. 18 indicates two supports traversing the bar 2 andwhose'lower part forms a bean ing. 19 is a cylinder which is journalled in the bearings of-the supports 18. 20 ind1- cates plates in helical disposition on cylinder '19, and 21 supports whose lower part forms a bearing. 22 isa bar whichis journalled in the members 21. A set screw prevents the justment. 23 is the knife blade ofthe cut- .ter and it is secured to bar 22. 24 is an extension of supports 21; the lower part of 'said extension forms abearing. 25 is a roller. which is journalled-in the extensions 2? indicates two supports which are secured to the said cross-piece 26 and whereof the end forms .a'bcaring, and 28 is a shaft revoluble insupports27. 29 is a'support which is secured below the cross-piece 26 and whose end forms a bearing. -30 is a support disposed on the ground, the end whereof forms a bearing; ,31 is a shaft turning in bearings 29,30. 32 is a worm mounted on shaft 28; 33 is a worm wheel on shaft 31 engaging said worm; 34 is a bar actuated by shaft 31 whereupon it 18 longitudinally movable. 35, 36,37 are pulleys on the shaft 28. 38 is a support secured to the frame and carrying an axle 39 and 40 is a pulley revoluble on said axle. 41 is a rod connecting the pulley 40 with the sliding member 5. 42 is an axle secured to the member 5, and 43 is a pulley revoluble thereon; 44 is a rod or link connecting-the pulley 43 with bar 12. '45 is a pulley keyed to the shaft of cylinder 19. Belts 62, 63, 64, connect together the pulleys 35-40, 36'15' and 3743. (The members *26to 45 inclusive are not shown in Fig. 1 ' ,forthesakeof clearness.) 46 are two par allel rails disposed on the-ground to the right and left of the machine; 47 47 are two frames sliding on the rails 46 and whereof the upper ends form bearings. 49 is a roller having the goods wound thereon and whereof the journals turn in the holes 48 of frames 47. 50 is a roller'whereon is wound the goods a after treatment and Whose journals turn in holes in the upperpart of frames 47. 51 indicates supports forming bearings secured to frames 47 .e 52 is a roller journalled in the supports 51. 53, 53 are I two frames secured to rails 46; theseare similar to frames 47 compressed air chamber which can be substi tuted for the members 16, 17 (Figs. 1 and 3). is a slot for outlet of compressedair; 61 is'the inlet for compressed air: Y Operation.The entire piece of fabric a is in the first place wound'on roller 49 at a point below the cutting device, the other end of the fabric 5 being in turn. secured to roller 50 and passing under-roller 25, across the top edge of blade 17 and between the cutting elements or blades 9 and 11 and the table 14. The blade 17 does not extend outwardly beyond "tr e frames 1 of the-'machineframe. Hence, portions of the fabric are supportedby bars 55 which are situated at about the same height as the top edge of blade 17. K The machine is then actuated by shaft 28, which is driven by a suitable motor. goods are drawn by the rotation of the roller 50 and pass between the-cutting elements 9, 11 and the co-acting support 14. The set of blades will cut off and shorten the loose yarn such asc d (Fig. 7) by reason of the alternating movement 'to right, and left The which is obtained as follows." The motion "of the blades is obtained by pulley 32 driv-' ing the pulley 40 by the belt 62; the pulley. 4O drives the rod 41 which gives to bar 5 carrying the blades 9 a reciprocating mo tion of suitable extent. The movement-of the opposite blades is obtained by the pulley 37 which drives pulley43 by means of the belt 64; the pulley 43 drives the rod 44 which gives to bar 12 whe reof the blocks or 'tappets drive the counter-blades11, a rapid reciprocating motion of proper extent. The goods, whose loose threads are now out and shortened, is brought before the blade 17 and then upon the top edge thereof. The parts 6 f of the loose threads (Fig. 3) whose attaching point is directed rear wardly in the sense of the upward motion of the goods, are successively shortened by the cutting device and are finally severed by the same when their attaching point comes upon the top edge of blade 17. The portions of the loose threads'g h, 1 whose attaching point is directed forwardlyin thesense of motion of the goods,'will rise vertically, and at the exact momentzwhen their attaching point 9 comes upon' 'the top edge of blade 17 these portions ofthe loose threads will suddenly pivot upon the edgeof said blade, taking successively the positions 2' 70. In the latter position they aretaken up by the helical blades 20 and sheared-or TI pared off at a single stroke by the blade '23. The goods then passes to the rear of blade '17 and upon the roller 25 and is finally wound on roller 50,whose rotation is produced by a belt 65 andpulley34, the latter being driven by the shaft'28 by means of the worm gearing 32, 33. a Q When the piece ofgoods has passed over the edge of the blade 17 from'end to end, a band or stretch of the goods having the width nn of the cutting and paring de vices of the machine will now have been entirely treated. The machine is then stopped, and the following operations are performed, these serving to change the position of the goods with respect to the machine itself,eso that a fresh band or stretch of the goods can be treated. Thev shearing or paring device 22, 23 is somewhat removed from the edge of the supporting blade 17, and then one slightly moves or slides the bearing element 14 situated opposite the cutting device 9, 11, and the goods are unwound from roller on to the roller l9. The goods being thus rolled again on roller 49, one moves, to the right or left, the device sliding on the rails l6 care being taken to move the same so that a fresh band of the goods comes before the machine for treatment. The elements which were first displaced are now returned into normal position and the machine is started again. These operations can be repeated as often as required, in order to treat the goods upon the whole'width which is to be operated upon. The same machine can be used for cutting and also for shearing or as a cutting machine without shearing, as well as for shearing without cutting. It can be used for goods whose width is smaller than the net width of the machine. It is obvious that the said details of construction are given solely by way of example, and that without departing from the principle of the invention, they may be replaced by like devices serving the same purpose. In particular: The so-called table or support for the goods which is mounted opposite the cutting device may comprise a compressed air receptacle (Fig. 5) having one or more slots for the discharge of one or more sheets of com pressed air which will facilitate the separation between the loose threads and the main work during the process of the cutting. The cutter blades and opposite blades may be of all sizes and shapes; their teeth may have any suitable size, shape and-direction, and said teethmay be spaced apart as desired. The machine can be modified so as to employ two or more pairs of blades and supports. The supporting plate or. knife for cutting the goods opposite the revolubleshearing device can be replaced by a compressed air receptacle 59 (Fig. 6) whose rear face ends near the top in an almost sharp angle and is separated from the front face by a slot 60 for the discharge of a sheet of compressed air which also facilitates the separation between the free ends of the cut loose threads and the main body of the work. Any suitable shape can be given to said slot in the compressed air box, and thelatter may comprise other slots below the first, or even a series of holes. In the form here shown, the machine proper is fixed while the rollerdevice for winding the goods is movable; but on the contrary the machine might be movable and the roller device will then be fixed. The latter arrangement has the advantage of much reducing the total length of the machine. Claims: Y 1. In a machine for cutting the loose threads or yarn of a fabric, comprising comb-like blades, sliding the one against the other and means for guiding the fabric near the teeth of said blades, the combination of two toothed blades whose teeth are terminated by plane faces which are perpendicular to the plane of contact of the said blades the one against the other for preventing the teeth from engaging the meshes of the web. 2. In a machine for cutting the loose threads or yarn of a fabric comprising comblike blades sliding the one againstthe other and means for guiding the fabric near the teeth of said blades, the combination of two toothed blades the teeth of which are terminated by plane faces which are perpendicular to the plane of contact of the said bladesthe one against the other, the guiding means being so adapted as to cause the fabric to pass close to the said plane faces of the teeth and parallel to these faces. In testimony that I claim the foregoing as 7 my invention, I have signed my name. GUSTAVE connmn.

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    Publication numberPublication dateAssigneeTitle
    US-5007253-AApril 16, 1991Thomas RahnerPortable lace clipping and shearing apparatus for synchronous operation with a lace-knitting machine