US843178A - Lappet-loom. - Google Patents

Lappet-loom. Download PDF

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Publication number
US843178A
US843178A US20700004A US1904207000A US843178A US 843178 A US843178 A US 843178A US 20700004 A US20700004 A US 20700004A US 1904207000 A US1904207000 A US 1904207000A US 843178 A US843178 A US 843178A
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Prior art keywords
pattern
needle
lappet
bar
bars
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US20700004A
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William A Robinson
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MANVILLE Co
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MANVILLE Co
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D31/00—Lappet, swivel or other looms for forming embroidery-like decoration on fabrics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2101—Cams

Definitions

  • t may concern:
  • the object of the present invention is to sist of a border extending parallel with the produce a design coniposed of individual four sides of tlze handkerclief, andv in such lappet patterns or figures, which design recase tle side portions of tl is bord er n' ay conquires for its production the ernployir ent of stitute one lappet design to be controlled by a niuch longer repeat than has heretofore one pattern-surface, and the cross portions of been possible or practicable.
  • the border nay constitute anotlier lappet invention
  • lappet design ni ay be of such design to be controlled by anotl er patternsize or length that a single design rr ay consurface, the side portions and the cross porstitute a complete article-as, for instance, tions referred to being n atclied to n ake the a doily or a handkerchief.
  • coirplete border which border in this case In practice I have err ployed the invention constitutes tlte conplete synin etrical design for the production of handkerchiefs provid ed l for the handkerchief.
  • Assun ing therefore consists in providing two pattern-surfore, that the fabric is to be woven-say, sixty-four picks to the inch-the lappet design or repeat for an article fourteen inclr ⁇ es long would in such case require to be eight hundred and ninety-six picks in length. It would be obviously in” possible to provide for a lappet design or repeat of such length by the ordinary pattern-wheel, and it would likewise be iirpracticable to provide for tl ⁇ e saire by a pattern-chain, wl ich in such case would require to be con posed of eight hundred and ninety-six links.
  • the object of the present invention is to provide a lappet-pattern or controlling nV echanisrn adapted to provide for a lappet design or repeat of eXtren'elength-aafor instance, the weaving of the space intermediate bea repeat con ⁇ posed of as niany or even a tween two consecutive lappet-figures. As a greater nuniber of picks than that above i result of this arrangement the entire periphnientioned. J ery of the pattern-wheel which controls the To that end the invention consists priweaving of the lappet figure may be devoted faces, one to control one of the constituent lappet ⁇ designs and the other to control the other constituent lappet design.
  • a f urther feature of invention consists in trolling the lateral inovenients'of the needlebar and an independently-operated patternsurface for controlling the vertical nievenients of said needle-bar.
  • the needle-b ar in ay be continuously reciprocated laterally, and it therefore becomes unnecessary to devote any portion of the periphery of the pattern-wheel which controls the weaving of the lappet VI'gure to hold the needle-bar in a fixed lateral position during
  • the patternwheel which controls the up-and-down movements of the needle-bars is operated independently of the pattern-wheel which controls the weaving of the lappet ligure
  • the patternwheel for the lappet figure may complete one revolution in forty-four steps, at the end of which revolution the needlebars may be locked out of operation, and the pattern-wheel which controls the weaving of the figure may then make another revolution, which will cause the continued lateral 'reciprocation of the needle-bars, which, however, will be inoperative to effect any lappetweaving, because the needle-bars are during this second revolution of the pattern-wheel locked out of operation.
  • Figure 1 is an end View of a lappet-loom embodying the invention.
  • Fig. 2 is a rear view of the lay and its adjuncts, with the frame broken away.
  • Fig. 3 is a section on the line w w of Fig. 2.
  • Fig. 4 is a section through one of the swords of the lay on the line u u of Fig. 2.
  • Fig. 5 is a section on the line o o of Fig. 4.
  • Fig. 6 is a plan view on an enlarged scale of the spiral pattern-head.
  • Fig. 7 is a section on the line a: of Fig. 6.
  • Fig. 8 is a section on the line y y of Fig. 6.
  • Fig. 9 is a section on the line z z of Fig. 6.
  • Fig. 10 is a section on the line z z of Fig.
  • Figs. 11, 12, and 13 are details.
  • Fig. 14 represents two handkerchiefs as woven successively in a continuous fabric, each of said handkerchiefs embodying a lappet design in the form of a border composed of individual lappet figures in the form of spots.
  • Figs. 15 and 16 are developments on a larger scale of the two spiral surfaces for controlling the two needlebars employed in the production of one of the two lappet designs or repeats shown in Fig. 14, said Figs. 15 and 16 being twice the scale of Fig 14.
  • A represents the'frame of the loom, B the lay, and C the swords of the lay.
  • Two needle-bars D D mounted in the lay are two needle-bars D D, arranged to reciprocate. laterally and also to have up anddown movements imparted thereto.
  • the means for giving the desired lateral movements to the two needle-bars are the same in each case, and a description of the the means for giving such lateral movements to one of the needle-bars will be suflicient.
  • the needle-bar projects laterally through the brackets a, secured tc the upper ends of the swords. To one end of the needle-bar is secured the spring l). the other end of said spring being attached to a standard secured at or near one end of the lay.
  • a cord c which passes around a pulley c', mounted upon the opposite end of the lay. Said cord c passes down around a pulley near the iloor, (not shown in the drawings,) and thence upward and is connected to the free end of the lever E, which lever is pivoted at its other end to abracket E', secured to the frame of the loom.
  • the lever E is provided with a projection or roll d, adapted to ride upon the surface of the pattern-wheel F, which is supported for rotation on the bracket F', secured to the frame.
  • the periphery of the pattern-wheel is provided with a series of projections and depressions corresponding to the pattern of the lappet figure to be produced, and said pattern-wheel is to be rotated one step for each pick by any suitable mechanism not necessary to be described.
  • the needle-bar will be pulled to the right in Fig. 2J and when the roll d is in one of the depressions on said pattern-wheel the needle-bar will be pulled to the left by the spring b.
  • the mechanism for giving the required upand-down-movements to the needle-bars is as follows: Each needle-bar is mounted in passes through the lay and is guided at its .upper end in a bracket a and is guided at its lower end in a bracket projecting from the sword C.
  • the needle-bar, with its connected lifting-rods e e, will fall by gravity to its lowest position when permitted to do so, and it is o'nly necessary to provide means for lifting said needle-bar at the desired times.
  • the downward movement of the needle-bar is for the purposeV 'of carrying the lappetthreads into and to the bottom of the shed and so that thev shuttle will pass above said lappet-threads and so that they will be woven into the fabric, while the upward movement of the needle-bar is for the purpose of lifting the lappet-threads above the shed and so that they will not be woven into the fabric and also so that the needle-bar may be moved laterally to change the position of the needles.
  • the lifting-rod e is a collar f.
  • FIG. 3 it will be seen that there is a second lifting-rod e2, arranged just in 'front ol the lifting-rod e, said lifting-rod e2 being likewise provided with an enlargement e, which is mortised to receive the second needle-bar D.
  • the sliding collar g is what may be termed a "double" ⁇ colla-r or yoke, being a block having two holes extend.- ing therethrough and through one of which the lifting-rod e passes and through the other of which the lifting-rod e2 passes.
  • each needle-bar may be held in its upper or inoperative position independent of the other.
  • each of the lifting-rods e e of the needle-ba D is provided with a projection Z
  • each of 't he lifting-rods e2 ol the needle-bar D is provided with a corresponding projection Z.
  • Two other similar latches ZC Zt are likewise adapted to be moved into or out of the path of the projections'Z Z on the other pair of lifting-rods e2 e2, which control the vertical position of the other needle-bar D.
  • This bracket is provided with a bearing m, in which is mounted a rock-shaft
  • the latch Zr constitutes one arm of a three-armed lever provided with a hub, which hub is loosely mounted on the rock-shaft mi.
  • a connecting cord or wire 7c3 is attached, which leads to a lever controlled by the patternsurface hereinafter described.
  • the third arm Zr" of said three-armed lever projects downward and has a connecting-wire Zci attached thereto.4
  • a two-armed lever Secured to the rock-shaft m2 is a two-armed lever, to one arm ZC of which a connecting-wire Zcl is attached, the other end 'of which wire is connected to a pattern-lever controlled by another patternsurface to be hereinafter described7 and to the other arm Zus o'lE which a connecting-cord Zr is attached.
  • a latch Zc Secured to the opposite end oi the rock-shaft m2 is a latch Zc, which engages the projection Z upon the lifting-rod e2.
  • i Secured to the sword C, at the opposite end ofv the loom, is a similar bracket m3, in which is mounted a rock-shaft fm, upon which the latches Zr Zz" at that end of the loom are similarly mounted.
  • Each of the latches 7i' 7c at this latter end ol the loom constitutes one arm ol a two-armed level'.
  • the opposite arm of the lever 7i' has the connecting cord or wire Zr?) attached thereto, while the other arm ol the lever Zr has the connecting cord or wire Zr connected thereto.
  • the construction is such that the two latches llc Zc will be caused to simultaneously move toward or from each other, and the two latches Zr ZC will likewise be caused to move simultaneously toward or from each other.
  • the latches Zr Zr are controlled by one pattern-surface, while the latches Zr Zz" are controlled by another and independent pattern-surface, it is evident that the latches Zi: Zt will be caused to move toward or from each other without moving or disturbing the position of the latches Zt" Zit.
  • the needle-bar D will continue to be held in its upper or inoperative position as long as the latches Zc 7c remain in position below the projections Z Z and until they are withdrawn from the path of said projections. It is preferred to have the latches hold the needle-bar in a position somewhat below its eXtreme upper position, as thereby the latches can be readily moved into the path of the projections Z Z when the lay is forward and the needle-bar in its upper position, the projections Z Z at this time being sufficiently above the upper ends of said latches, so as not to interfere with the movement of said latches or to require any special force to move said latches into a position below said projections.
  • the projections will be lifted slightly above the upper ends of the latches atthe time when the latches are to be withdrawn, and consequently no special force will be required to withdraw the latches. If now it be desired to hold the needle-bar Dl in its upper or inoperative position and to allow the needlebar D to continue its up-and-down movements, this may be done by withdrawing the latches Zr Ze out of the path of the projections Z Z and moving the latches Zc Ze into the path of the projections Z Zl of the lifting-rods e2 e2 of the needle-bar D. lhen this has been done, the needle-barD will be prevented from falling as the sliding collar g moves downward, while the needle-bar D will be permitted to follow down as the sliding collar g moves downward under the backward movement of the lay.
  • both of the needle-bars D D may be permitted to operate to insert the lappetthreads in the fabric, or both of said needlebars may be held in their upper or inoperasfiaivs tive position, or either one or the other of said needle-bars may be held in its upper or inoperative position while the remaining needle-bar is permitted to continue its operative up-and-down movements. In other words, either one of said needle-bars may be locked out at will. So far as known, this is a result which has never heretofore been accomplished.
  • the connecting-wires 7c3 Z127 which serve to operate the latches Zc Zc and Ze Zc,respectively, may be controlled by any suitable pattern mechanism constructed to produce a pull upon said wires when the latches are to be moved into the path of the projections on the lifting-rods, and which will release said latches at the proper times.
  • each of the connecting-wires .7c3 k7 is operated or controlled by a convolute or spiral pattern-surface, which constitutes another feature of the present invention and which will now be described'.
  • G represents the pattern-head for controlling the up-and-down movements of the needle-bars G GC
  • Said pattern-head is mounted on an arbor G', secured at one end to the bracket G2, projecting from the frame of the loom and preferably supported at its opposite end by a standard G3, secured to the floor at a short distance from one end of the loom.
  • Mounted loosely on the arbor G is a flanged sleeve G4, upon which is mounted a drum G5, which said drum is secured to the sleeve G4 by bolts g and so that said drum and sleeve will rotate together.
  • the drum G5 is provided at one end with a ratchetwheel g2 for intermittently rotating the same, which ratchet-wheel may be formed integral with said drum or may be formed separately and secured to the drum, as shown in the drawings.
  • a ratchetwheel g2 for intermittently rotating the same, which ratchet-wheel may be formed integral with said drum or may be formed separately and secured to the drum, as shown in the drawings.
  • Mounted upon the drum G5 are a series of disks g3, which are clamped in position between an annular flange gr4 at or near one end of the drum and a clamping-ring g5, which is held in position by the clamp-screws g, which take into the opposite end of the drum.
  • Each of the disks g3 is provided with a body portion and with a projecting portion ,07, which is in the form of a spiral.
  • each disk consists of a complete convolution, as shown in Fig. 8, which convolution begins and ends with an abrupt shoulder, as indicated at g8.
  • the projectingportions g7 will interlock with each other, the abrupt shoulder ys ofA one disk abutting IOO against the corresponding shoulder of the next disk and so that the convolution on one disk will be a continuation of the convolution on the adjoining disk.
  • each disk or the projecting portion g7 thereof, is provided with Y Y projections and depressions to constitute the .ratchet at each pick of the loom.
  • pattern-surface, andl by reasonof the spiral or convolute construction referred to the pattern-surface will extend from one disk to the next and may be increased in extent by simply increasing the number of disks employed.
  • Each disk will provide a pattern-surface for as many picks as there are teeth in the ratchet g2.
  • said ratchet Assuming said ratchet to be provided with eighty teeth, for instance, a series of six disks ill piovide a pattern-surface for four hundred and eighty picks, if the ratchet be advanced one tooth at each pick of the loom, as it may be by operating the pawl which actuates said
  • the pawl H ⁇ which serves to operate the ratchet g2
  • the pawl H which serves to operate the ratchet g2
  • a lever I Pivoted to swing about the axis of the pattern-head G is a lever I, which carries the pawl I-I, which engages the ratchet g2 to intere mittently rotate the pattern-head.
  • a connecting-rod J connects the lever I with a crank K on the cam-shaft K. Vith this construction, as is obvious, the pawl H will be caused at each revolution of the cam-sliaft K to advance the pattern-head G one tooth of the ratchet g2.
  • Pivoted upon a cross-bar L2 are two pattern-levers L L, one of which overlies one of the two spiral pattern-surfaces shown in Fig. 10 and the other of 'which overlies the other spiral pattern-surface there shown.
  • To the free end of the lever L the connecting-wire 7c3 is attached, while to the free end of thelever L the end of the connecting-c ord k7 is attached.
  • Each of these levers is preferably provided with a dolly-roll to ride on the pattern-surface.
  • the patteinhead G as a whole is adapted to move longitudin. -lly on its supporting-stud G.
  • Consequcnily as the fo;kecl p; ojey tion M ⁇ is -stations.' y and Yigid the ievolulicn of the patte; n-head ill i y reason of the spi "..l fo' mation of the p1 ojec ting poliions (,7 of the disks g3 cause said patte.
  • n-head to be gradually moved lcngth'nise along the supporting stud G and so that as said patteln-head revolves the, dolly-roll on the patteirlever n ill be caused to travel from one disk to the next, and thus to follow the spiral pattern-surface.
  • the pattern-head is intermittently rotated by its pavl and ratchet the pattei n ⁇ levers L L n ill under the action of their respective spiral patternsurfac es be caused to operate the connectingwires k3 767, so as to throw the needle-bars D D, one or both, into and out of operation at the desired times, depending upon the form of the respective spiral pattern-surfaces.
  • the travel of the pattern-lever from one end of the spiral pattern-surface to the other vwhile the patlternehead is revolving in one direction may be used to' produce a given design, and the travel of the pattern-lever along the pattern-su"face in the reverse direction ty the revolution of the pattern-head in the opposite direction may serve to produc e the next repetition of the design in the continued length of the fabric.
  • a spiral pattern-surface composed of six disks, as shown, which will control the operationof the needle-bars for IIO nine hundred and sixty picks, as above stated, may bya mere reversal of the direction of revolution of the pattern-head be caused to control the operation of said needle-bars for one thousand nine hundred and twenty picks.
  • a spiral pattern-surface composed of six disks, as shown, may with an eighty-tooth ratchet serve to-control a lappet design or repeat one thousand nine hundred and twenty picks in length.
  • the means employed for producing the reverse rotation of the pattern-head G in the construction shown is as follows:
  • the pawl H-instead of being a single pawl and rigidly secured to the lever I is a double pawl provided with two engaging fingers h Z and is pivoted to said lever I at i. W hen the pattern-head is to be rotated in one direction, 4 the finger 7M is thrown into engagement with the ratchet g2, as shown in Fig. 9.
  • the pawl H is turned upon its pivot so as to throw the finger L/ out of engagement with the ratchet g2 and the finger h2 into engagement with said ratchet.
  • This is accomplished by the following means: Mounted upon the drum G5 adjacent to the last disk g3 of the pattern-surface is another disk h3, to which is vsecured a projection h4.
  • this disk Zta is constructed the same as the disks g3, with a projection in the form of a spiral terminating in ⁇ abrupt shoulders and so that said disk h3 may be interlocked with the last disk g3 and fitted closely thereto.
  • said disk h3 may be a plain disk. Vhen the disk [L3 is formed in the manner shown, it may, if desired, be utilized as a continuation of the pattern-surface for the greater portion of its periphery and would thus serve to extend the pattern-surface that much.
  • a sleeve Zr Secured to the pawl H 1s a sleeve Zr", pro- ⁇ jecting at right angles from the pawl, which sleeve surrounds the stud i', secured to or projecting from the lever Lwhich said stud i constitutes the pivot for said pawl.
  • bracket G2 Secured to the bracket G2 is a bracket N, the free end of which is bent downward and provided with a forked end N, which forked end N is adapted to enter an annular groove formed in a projecting hub ZN, formedon the sleeve h6, as shown in Figs. 10 and 13.
  • a bracket N Secured to the bracket G2 is a bracket N, the free end of which is bent downward and provided with a forked end N, which forked end N is adapted to enter an annular groove formed in a projecting hub ZN, formedon the sleeve h6, as shown in Figs. 10 and 13.
  • said sleeve ZL will be held against lengthwise movement, while the sleeve h5 and the pawl H will be permitted to travel lengthwise with the pattern-head G.
  • Adjustably secured to the sleeve 712 are two collars Z Zz?, which are held in their adjusted position on said sleeve by means of set-screw
  • the collars 77,8 he may be adjusted lengthwise on the sleeve h and may also be adjusted axially thereon.
  • the collar hs is provided with a projection 7h12
  • the collar ZL is provided with a projection ZL.
  • these projections h1z h are in the form of screws or bolts and may thus be adj usted toward or from the pattern-head.
  • the tail of the pawl H is provided with a V-shaped projection Zt, adapted to be engaged by a V-shaped spring-pressed plunger i2, slidably mounted at or near the lever I.
  • the V-shaped plunger is mounted in a casing i, secured to vthe lever l, provided with a screw-cap it, through which the reduced end i5 of the plunger projects.
  • the spiral spring i abuts at one end against a shoulder formed on the plunger and at the other end against the screw-cap it.
  • Each of the pattern-levers L L' is preferably provided with projections Z2 Z2, arranged to straddle the projecting portion 97 of the disk g3, as shown in Fig. l2. These projections Z2 Z ⁇ /l serve to prevent any accidental displacement of the pattern-lever and to retain it in proper position with relation to the spiral pattern-surface as it travels along the same.
  • the operation of the mechanism above described for effecting the reversal of the pattern-head is as follows: Assuming the pattern-lever L, for instance, to be in position on Vthe first disk to the left in Fig. 10, the pattern-head G will be rotated step by step by the action of the pawl H as said pawl is oscillated by the rotation of the cam-shaft K. As the pattern-head is thus rotated it will be caused to travel lengthwise on its supportingstud g, as above explained. This longitudinal movement of the pattern-head will be accompanied by a corresponding longitudinal movement of the lever l., the pawl H, and the sleeve he.
  • the said longitudinal movement of the pattern-head will likewise serve to bring the projection 7b4 on the disk h3 in line with the projection 7tlg on the sleeve h and so that upon the next revolution of the pattern-head saidprojection h4 will come against the projection hw, and thereby impart al rocking movement to the sleeve ILS, and consequently to the sleeve h5 and the pawl H.
  • This rocking movement of the pawl H will serve to turn said pawl upon its pivot f, and thus throw the finger Zt of said pawl out of engagement with the ratchet g2 and to throw the finger h2 into engagement with said ratchet.
  • a friction-brake N2 is employed, as shown in Figs. 6 and 9, said brake being in the form of a friction-strap, which is convenientlyT supported in place by having the two ends of the strap composing said friction-brake arranged to straddle the rod L ⁇ -, on which -the levers L L are pivoted, the ends of said frictionstrap being connected together by cross-bolts nf n2, and by means of which the tension of said friction-brake may be adjusted.
  • each of said handkerehiefs is shown as provided with a lappet design in the form of a border composed of individual lappet figures in the form of spots.
  • the formation of the border or design there shown the side portions of the border, com'- posed of the eleven lappet figures or spots n are produced under the control of one of the needle-barswas, for instance, the needle-bar D-while the cross portions of said border, composed of the nine lappet figures or spots o are formed under the control of the other needle-bar-as, for instance, D.
  • both needle-bars D D will be unlocked and thrown into operation and will be continued in operation while the lappet figures o, composing the cross portion of'the border, and the lirst two lappet figuresr/t of the side portionsV of Athe border 'are -being formed, .said lappet figures o, as abovestated ⁇ being formed under the control of the 1ie ⁇ edle bar D and said figures n beingl formed under the control of the needle-bar D. Then now the cross portion of the border hasl been completed, both needle-bars will be locked out of operation, as'indicated in the developments of the jntttern-surface shown in Figs. 1.5 and 16.
  • the needle-bar D will continue to be held out of operation until the time arrives to produce the lappet figures 0 in the other cross portion of the border; but the needle-bar D will be intermittently thrown into and out of operation to produce the successive lappet-'ligures n, composing the side portions of the border, until the point is reached where the other cross portion of the border is to be formed, when both .needle-bars will be thrown intooperation to produce the end figures or spots a of the side portions of the border and the figures or spots o, compos ing the remaining cross portion of the border'.
  • both needle-bars will be thrown ont of operation and will 'be held out of operation during the remainder of the design or repeat, which will be the dividing-line between the handkerchief O and the adjacent handkerchief O, at which point the direction of rotation of the pattern-surface is to be reversed, as above explained, and so that the adjacent handkerchief O will be woven in the same manner during the revolution of the patternsurface in the reverse direction.
  • the mechanism above described not only enables either one of the two needle-bars to be locked or held out of operation at will, but it enables a complete article to be woven or produced embodying a lappet design or repeat equal in extent to the extent of the article itself, the production of said lappet design or repeat and of the entire article being thus controlled by one or more pattern-surfzwes each of which controls the production of the complete article from beginning to end.
  • the two needle-bars and two pattern-surfaces may be matched together to constitute a unitary symmetrical design composed in part of the design controlled by one of the pattern-surfaces and in part by the design controlled by the other pattern-surface.
  • the combination with a needle-bar, ot a spiral pattern-surface for controlling the vertical movements of said needle-bar, a member cooperating with said pattern-surface, means for rotating said pattern-surface, means for causing said cooperating member to traverse said spiral patternsurface, means for reversing the rotation of said pattern-surface, and means for reversing the direction of traverse of said cooperating member, substantially as described.
  • a spiral pattern-head composed of two or more disks, each disk being provided with a pattern-surface in spiral form, whereby when said disks are assembled to form the pattern-head a spiral pattern-surface Will be formed extending from one disk to the next adjacent disk, substantially as described.
  • a spiral pattern-head composed of two or more disks, each disk being provided With a projecting portion on which a pattern-surface is formed, the projecting portion of one disk being adapted to interlock with the projecting portion of the next'adjacent disk to form a continuing pattern-surface, substantially as described.
  • the combination ot' two needle-bars and two pattern-surfaces, one for controlling the vertical movements of each of said needle-bars, one of said pattern-surfacesserving to control the action of one of the needle-bars to form one portion of a unitary lappet design and the other patternsurface serving to control the action of the other needle-bar to form another portion of such unitary lappet design, substantially as described.

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Description

No. 843,178. y PATENTED FEB. 5, 1907. W. A. ROBINSON. LAPPBT LOOM.l APPLICATION FILED MAYS, 1904.
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No. 843,178. MTL'ENTBD PEB. 5, 1907.
W. A. ROBINSON.
LAPPET LOOM.
APPLIOATION FILED MAY 9, 1904.. v
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PATENTED FEB. 5, 1907.
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PATENTED FEB. 5, 1907.
FIG
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W. A. ROBINSON.
LAPPBT LOOM. APPLICATION FILED MAY 9, 1904.
STATES ATENE OFFICE,
NITE il WILLIAM A. ROBINSON, OF WOONSOCKET, RI-IODE ISLAND,
MANVILLE COMPANY, OF PROVIDENCE, RHODE ISLAND, TION OF NEW JERSEY.
Assiekon To LAPPET-LOONL Specification of Letters :Patent` Serial NoK 207.000.
No. 843,178. Patented Fe; 5, 1907.
Application filed May 9. 1904.
irarily in providing a spiral pattern-surface for controlling the vertical n oven' ents of the thereby controlling tlte be- To all whom, t may concern:
Be it known that I, WILLIAM A. RoiN- l of Woonsocket, county of l needle-bar, and Providence, and State of Rhode Island, have i ginning and end of a lappet invented certain new and useful InA provecharacter referred to. ments in Lappet-Loonis; and I do hereby If desired, the lappet'design as a whole declare the following specification, taken in may be conposed of separate designs connection with the accompanying drawings, \n`atclied together to conpose the conf lete l SON, of the city forming a part of the same, to be a full, clear, design. Thus, for exanf ple, in a han kerand exact description thereof. cliief the lappet design as a whole ir ay con- The object of the present invention is to sist of a border extending parallel with the produce a design coniposed of individual four sides of tlze handkerclief, andv in such lappet patterns or figures, which design recase tle side portions of tl is bord er n' ay conquires for its production the ernployir ent of stitute one lappet design to be controlled by a niuch longer repeat than has heretofore one pattern-surface, and the cross portions of been possible or practicable. By the present the border nay constitute anotlier lappet invention such lappet design ni ay be of such design to be controlled by anotl er patternsize or length that a single design rr ay consurface, the side portions and the cross porstitute a complete article-as, for instance, tions referred to being n atclied to n ake the a doily or a handkerchief. coirplete border, which border in this case In practice I have err ployed the invention constitutes tlte conplete synin etrical design for the production of handkerchiefs provid ed l for the handkerchief. In this latter case the with a lappet design, which handkercliefs tin es for throwing the two needle-bars into were fourteen inches in length and in which and out of operationwill the lappet design or repeat is likewise fourthe constituent designs,and consequently tlte teen inches long. In weaving these handtwo needle-bars required for tle production kerchiefs successivelyT in a continuous fabric of the two constituent designs n ust be the lappet design or repeat nay be convencontrolled by separate and independent iently neasured from the beginning of tle l operating irechanisin, because one of tlLe lappet-weaving in one handkerchief to the l needle-bars will require to be held out of beginning of the lappet-weaving of the saire operation at tiines when the other needle-bar design in the next handkerchief, the distance is operating. between which points will likewise neces- A further feature of the invention theresarily be fourteen inches. Assun ing, therefore consists in providing two pattern-surfore, that the fabric is to be woven-say, sixty-four picks to the inch-the lappet design or repeat for an article fourteen inclr` es long would in such case require to be eight hundred and ninety-six picks in length. It would be obviously in" possible to provide for a lappet design or repeat of such length by the ordinary pattern-wheel, and it would likewise be iirpracticable to provide for tl`e saire by a pattern-chain, wl ich in such case would require to be con posed of eight hundred and ninety-six links.
The object of the present invention is to provide a lappet-pattern or controlling nV echanisrn adapted to provide for a lappet design or repeat of eXtren'elength-aafor instance, the weaving of the space intermediate bea repeat con^posed of as niany or even a tween two consecutive lappet-figures. As a greater nuniber of picks than that above i result of this arrangement the entire periphnientioned. J ery of the pattern-wheel which controls the To that end the invention consists priweaving of the lappet figure may be devoted faces, one to control one of the constituent lappet` designs and the other to control the other constituent lappet design.
A f urther feature of invention consists in trolling the lateral inovenients'of the needlebar and an independently-operated patternsurface for controlling the vertical nievenients of said needle-bar. By this arrangenient the needle-b ar in ay be continuously reciprocated laterally, and it therefore becomes unnecessary to devote any portion of the periphery of the pattern-wheel which controls the weaving of the lappet VI'gure to hold the needle-bar in a fixed lateral position during A CORPORA- design of the vary in the case of the employment of a pattern-surface for con- X IOO to such figure, and thus the projectionsfand depressions on V the periphery of said wheel may be spaced farther apart than would be possible if a portion of said periphery had to be devoted to the space between two .adjacent figures. Thus, for example, suppose that the lappet figure occupies forty-four picks and that this is followed by forty-four picks of plain weaving, if the pattern-wheel which controls the up-and-down movements of the needle-bars is operated independently of the pattern-wheel which controls the weaving of the lappet ligure, the patternwheel for the lappet figure may complete one revolution in forty-four steps, at the end of which revolution the needlebars may be locked out of operation, and the pattern-wheel which controls the weaving of the figure may then make another revolution, which will cause the continued lateral 'reciprocation of the needle-bars, which, however, will be inoperative to effect any lappetweaving, because the needle-bars are during this second revolution of the pattern-wheel locked out of operation.
Referring to the drawings, Figure 1 is an end View of a lappet-loom embodying the invention.
Fig. 2 is a rear view of the lay and its adjuncts, with the frame broken away. Fig. 3 is a section on the line w w of Fig. 2. Fig. 4 is a section through one of the swords of the lay on the line u u of Fig. 2. Fig. 5 is a section on the line o o of Fig. 4. Fig. 6 is a plan view on an enlarged scale of the spiral pattern-head. Fig. 7 is a section on the line a: of Fig. 6. Fig. 8 is a section on the line y y of Fig. 6. Fig. 9 is a section on the line z z of Fig. 6. Fig. 10 is a section on the line z z of Fig. 1 on an enlarged scale. Figs. 11, 12, and 13 are details. Fig. 14 represents two handkerchiefs as woven successively in a continuous fabric, each of said handkerchiefs embodying a lappet design in the form of a border composed of individual lappet figures in the form of spots. Figs. 15 and 16 are developments on a larger scale of the two spiral surfaces for controlling the two needlebars employed in the production of one of the two lappet designs or repeats shown in Fig. 14, said Figs. 15 and 16 being twice the scale of Fig 14.
A represents the'frame of the loom, B the lay, and C the swords of the lay. Mounted in the lay are two needle-bars D D, arranged to reciprocate. laterally and also to have up anddown movements imparted thereto. The means for giving the desired lateral movements to the two needle-bars are the same in each case, and a description of the the means for giving such lateral movements to one of the needle-bars will be suflicient. The needle-bar projects laterally through the brackets a, secured tc the upper ends of the swords. To one end of the needle-bar is secured the spring l). the other end of said spring being attached to a standard secured at or near one end of the lay. Attached to the opposite end of the needle-bar is a cord c, which passes around a pulley c', mounted upon the opposite end of the lay. Said cord c passes down around a pulley near the iloor, (not shown in the drawings,) and thence upward and is connected to the free end of the lever E, which lever is pivoted at its other end to abracket E', secured to the frame of the loom. The lever E is provided with a projection or roll d, adapted to ride upon the surface of the pattern-wheel F, which is supported for rotation on the bracket F', secured to the frame. The periphery of the pattern-wheel is provided with a series of projections and depressions corresponding to the pattern of the lappet figure to be produced, and said pattern-wheel is to be rotated one step for each pick by any suitable mechanism not necessary to be described. When the roll d is upon one of the projections of the pattern-wheel F, the needle-bar will be pulled to the right in Fig. 2J and when the roll d is in one of the depressions on said pattern-wheel the needle-bar will be pulled to the left by the spring b.
The mechanism for giving the required upand-down-movements to the needle-bars is as follows: Each needle-bar is mounted in passes through the lay and is guided at its .upper end in a bracket a and is guided at its lower end in a bracket projecting from the sword C. The needle-bar, with its connected lifting-rods e e, will fall by gravity to its lowest position when permitted to do so, and it is o'nly necessary to provide means for lifting said needle-bar at the desired times. The downward movement of the needle-bar is for the purposeV 'of carrying the lappetthreads into and to the bottom of the shed and so that thev shuttle will pass above said lappet-threads and so that they will be woven into the fabric, while the upward movement of the needle-bar is for the purpose of lifting the lappet-threads above the shed and so that they will not be woven into the fabric and also so that the needle-bar may be moved laterally to change the position of the needles. As the -movement of the lay is timed with the opening of the shed, the lay swinging backward as the shed is opened, it is convenient to control the vertical movements of the needle-bar from the lay. Adjustably secured to the lifting-rod e is a collar f. Arranged to slide on said rod c is another collar g. To this collar g is pivotally secured one end of a connecting-rod 71 the other end of which is pivotally connected to a bracket i, secured to the cross-rod j of the IOO loom. Vith this construction when the lay is in its rearward position, as shown in Fig. 3, the lifting-rod e and the needle-bar D carried therebyjwill be in their lower position. When now the lay swings torward, the collar g will be'caused by the action of the connecting-rod h to move upward, and by engagement with the collarj', secured to the liftingrod e, will serve to lift said rod, and thereby lift the needle-bar D. It will be understood that there is a similar construction at each end of the loom.
The construction of the mechanism 'for giving the up-and-down movements to the needle-bars where two such needle-bars are employed will next be described. Referring to Fig. 3, it will be seen that there is a second lifting-rod e2, arranged just in 'front ol the lifting-rod e, said lifting-rod e2 being likewise provided with an enlargement e, which is mortised to receive the second needle-bar D. Adjustably secured to the lifting-rod` e2 is a collar f In this case the sliding collar g is what may be termed a "double"` colla-r or yoke, being a block having two holes extend.- ing therethrough and through one of which the lifting-rod e passes and through the other of which the lifting-rod e2 passes. With this construction, if nothing further were provided, the two needle-bars D D would move upward and downward together and would so move at each beat of the lay. It it necessary, however, when the lappet-threads are not to be woven into the 'fabric that the needle-bars should be held in their upper position, and as it may happen that the lappetthreads controlled by one of the needle-bars are to be woven into the fabric at a time when the lappet-threads controlled by the other needle-bar are not to be woven in it is desirable to provide means whereby each needle-bar may be held in its upper or inoperative position independent of the other.
ln the construction shown in the drawings this is accomplished by means ol latches Zt Zt'. Each of the lifting-rods e e of the needle-ba D is provided with a projection Z, and each of 't he lifting-rods e2 ol the needle-bar D is provided with a corresponding projection Z. There are two latches 757s, one near each end of the loom, one of said latches being adapted to be moved into and out of the path of the projection Z on one of the lifting-rods c as said lifting-rod is raised or lowered and the other latch k being likewise adapted to be moved into orv out ol the path ofthe corresponding projection Z on the companion lifting-rod e. Two other similar latches ZC Zt, one located near each end of the loom, are likewise adapted to be moved into or out of the path of the projections'Z Z on the other pair of lifting-rods e2 e2, which control the vertical position of the other needle-bar D.
Referring `first to the construction at the right in Fig. 2 and likewise shown in Figs. 3
and 4, mis a bracket secured to the sword C. This bracket is provided with a bearing m, in which is mounted a rock-shaft The latch Zr constitutes one arm of a three-armed lever provided with a hub, which hub is loosely mounted on the rock-shaft mi. To a second arm Z. ol" this three-armed lever a connecting cord or wire 7c3 is attached, which leads to a lever controlled by the patternsurface hereinafter described. The third arm Zr" of said three-armed lever projects downward and has a connecting-wire Zci attached thereto.4 Secured to the rock-shaft m2 is a two-armed lever, to one arm ZC of which a connecting-wire Zcl is attached, the other end 'of which wire is connected to a pattern-lever controlled by another patternsurface to be hereinafter described7 and to the other arm Zus o'lE which a connecting-cord Zr is attached. Secured to the opposite end oi the rock-shaft m2 is a latch Zc, which engages the projection Z upon the lifting-rod e2. i Secured to the sword C, at the opposite end ofv the loom, is a similar bracket m3, in which is mounted a rock-shaft fm, upon which the latches Zr Zz" at that end of the loom are similarly mounted. Each of the latches 7i' 7c at this latter end ol the loom constitutes one arm ol a two-armed level'. The opposite arm of the lever 7i' has the connecting cord or wire Zr?) attached thereto, while the other arm ol the lever Zr has the connecting cord or wire Zr connected thereto. The construction is such that the two latches llc Zc will be caused to simultaneously move toward or from each other, and the two latches Zr ZC will likewise be caused to move simultaneously toward or from each other. As the latches Zr Zr are controlled by one pattern-surface, while the latches Zr Zz" are controlled by another and independent pattern-surface, it is evident that the latches Zi: Zt will be caused to move toward or from each other without moving or disturbing the position of the latches Zt" Zit.
It is obvious that the sliding collar g, which surrounds both of the lifting-rods e e2, is and must be moved up and down continuously at each to-and-'l'ro movement of the lay by reason of the connecting-rod Zt, which is connected at one end to the frame of the loom. It is also obvious that as long as the latches Zc /c are held out of the'path of the projections Z Z and the latches Zr Zr are likewise held out of the path of the projections Z Z, both of the needle-bars D D will be continuously raised and lowered by the engagement of the sliding collar g 'with the iixed collars f j", secured to the lifting-rods e e2, respectively. It now it be desired to hold the needle-bar D, for instance, in its upper or `inoperative position and at the same time to have the needle-)bar D continue its up-anddown movements, all that is necessary to sesure lthis result is to pullfthe cord 7c3, which IIO will serve to rock both of the latches Zr Zc and move the free ends of said latches into the paths of the projections Z Z, this movement of the latches being eected at a time when the needle-bar is at or near its up er position and so that the free ends of said atches may thus be moved into the path of the projections Z Z and below the same-that is, at a time when the lay is at or near its forward position. When now the lay swings backward and the sliding collar g is thereby moved downward, the lifting-rods e e will be prevented from moving downward by the impingement of the projections Z Z against the latches Zc Zr, which latches will thereby serve to prevent the downward movement of the needle-bar D and will hold said needlebar in its upper or inoperative position. As, however, there is nothing to prevent the downward movement of the needle-bar D', said needle-bar will descend with the back- Ward movement of the lay, being lowered or allowed to fall by the downward movement of the sliding collar g. It will be obvious that the needle-bar D will continue to be held in its upper or inoperative position as long as the latches Zc 7c remain in position below the projections Z Z and until they are withdrawn from the path of said projections. It is preferred to have the latches hold the needle-bar in a position somewhat below its eXtreme upper position, as thereby the latches can be readily moved into the path of the projections Z Z when the lay is forward and the needle-bar in its upper position, the projections Z Z at this time being sufficiently above the upper ends of said latches, so as not to interfere with the movement of said latches or to require any special force to move said latches into a position below said projections. With this construction also the projections will be lifted slightly above the upper ends of the latches atthe time when the latches are to be withdrawn, and consequently no special force will be required to withdraw the latches. If now it be desired to hold the needle-bar Dl in its upper or inoperative position and to allow the needlebar D to continue its up-and-down movements, this may be done by withdrawing the latches Zr Ze out of the path of the projections Z Z and moving the latches Zc Ze into the path of the projections Z Zl of the lifting-rods e2 e2 of the needle-bar D. lhen this has been done, the needle-barD will be prevented from falling as the sliding collar g moves downward, while the needle-bar D will be permitted to follow down as the sliding collar g moves downward under the backward movement of the lay.
With the above construction it will be seen that both of the needle-bars D D may be permitted to operate to insert the lappetthreads in the fabric, or both of said needlebars may be held in their upper or inoperasfiaivs tive position, or either one or the other of said needle-bars may be held in its upper or inoperative position while the remaining needle-bar is permitted to continue its operative up-and-down movements. In other words, either one of said needle-bars may be locked out at will. So far as known, this is a result which has never heretofore been accomplished. As will be seen, this is a matter of great advantage, as it enables either one of two needle-bars to be employed for the production of lappet figures with spaces between said figures and greatly increases the variety of figures which can thus be produced with the employment of two needle-bars. The connecting-wires 7c3 Z127, which serve to operate the latches Zc Zc and Ze Zc,respectively, may be controlled by any suitable pattern mechanism constructed to produce a pull upon said wires when the latches are to be moved into the path of the projections on the lifting-rods, and which will release said latches at the proper times.
In the construction shown in the drawings, each of the connecting-wires .7c3 k7 is operated or controlled by a convolute or spiral pattern-surface, which constitutes another feature of the present invention and which will now be described'.
G represents the pattern-head for controlling the up-and-down movements of the needle-bars G GC Said pattern-head is mounted on an arbor G', secured at one end to the bracket G2, projecting from the frame of the loom and preferably supported at its opposite end by a standard G3, secured to the floor at a short distance from one end of the loom. Mounted loosely on the arbor G is a flanged sleeve G4, upon which is mounted a drum G5, which said drum is secured to the sleeve G4 by bolts g and so that said drum and sleeve will rotate together. The drum G5 is provided at one end with a ratchetwheel g2 for intermittently rotating the same, which ratchet-wheel may be formed integral with said drum or may be formed separately and secured to the drum, as shown in the drawings. Mounted upon the drum G5 are a series of disks g3, which are clamped in position between an annular flange gr4 at or near one end of the drum and a clamping-ring g5, which is held in position by the clamp-screws g, which take into the opposite end of the drum. Each of the disks g3 is provided with a body portion and with a projecting portion ,07, which is in the form of a spiral. Preferably the projecting portion g7 of each disk consists of a complete convolution, as shown in Fig. 8, which convolution begins and ends with an abrupt shoulder, as indicated at g8. With this construction when a series of these disks are mounted upon a common aXis and clamped together the projectingportions g7 will interlock with each other, the abrupt shoulder ys ofA one disk abutting IOO against the corresponding shoulder of the next disk and so that the convolution on one disk will be a continuation of the convolution on the adjoining disk.
The periphery of each disk, or the projecting portion g7 thereof, is provided with Y Y projections and depressions to constitute the .ratchet at each pick of the loom.
pattern-surface, andl by reasonof the spiral or convolute construction referred to the pattern-surface will extend from one disk to the next and may be increased in extent by simply increasing the number of disks employed. Each disk will provide a pattern-surface for as many picks as there are teeth in the ratchet g2. Assuming said ratchet to be provided with eighty teeth, for instance, a series of six disks ill piovide a pattern-surface for four hundred and eighty picks, if the ratchet be advanced one tooth at each pick of the loom, as it may be by operating the pawl which actuates said In the arrangement shown, however, the pawl H, `which serves to operate the ratchet g2, is actuated by a connection with thecani-shaft which rotates once at every two picks, and with this construction a pattern-su: face formed by a series of six disks, as shown, will with an eighty-tooth ratchet serve to control the operation of the needle-bars for nine hundred and sixty picks, and will thus provide for a design or repeat of that length.
In the construction shown, in which two needle-bars are employed, there are two of these spiral pattern-surfaces, one for each needle-bar, each composed of a series of six disks, as shown in Figs. 6 and 10, both of which series of disks are mounted upon the same drum G5.- spacing-collar g9 may be employed, as shown in Fig. 10.
Pivoted to swing about the axis of the pattern-head G is a lever I, which carries the pawl I-I, which engages the ratchet g2 to intere mittently rotate the pattern-head. A connecting-rod J connects the lever I with a crank K on the cam-shaft K. Vith this construction, as is obvious, the pawl H will be caused at each revolution of the cam-sliaft K to advance the pattern-head G one tooth of the ratchet g2.
Pivoted upon a cross-bar L2 are two pattern-levers L L, one of which overlies one of the two spiral pattern-surfaces shown in Fig. 10 and the other of 'which overlies the other spiral pattern-surface there shown. To the free end of the lever L the connecting-wire 7c3 is attached, while to the free end of thelever L the end of the connecting-c ord k7 is attached. Each of these levers is preferably provided with a dolly-roll to ride on the pattern-surface.
In order to enable the dolly-roll of the pattern-lever to follow the spiral pattern-surface, it is necessary that either the pattern-head If desired, an intermediate shall be moved longitudinally beneath the pattern-lever or that the pattern-lever shall be moved longitudinally along the patternhead. It has been found more convenient to give this longitudinal movement to the pattern-head rather than to the patte: n-lever, and this is Athe cfonstzuction shonn in the dran ings. Secaireci to the bra' ket G2 is an overhanging bracket M, to whiI h is secured a depending fo. k M, the faked end of which straddlcs the p1 ojecting po'- tion g7 of the pattern-disk. The patteinhead G as a whole is adapted to move longitudin. -lly on its supporting-stud G. Consequcnily as the fo;kecl p; ojey tion M` is -stations.' y and Yigid the ievolulicn of the patte; n-head ill i y reason of the spi "..l fo' mation of the p1 ojec ting poliions (,7 of the disks g3 cause said patte. n-head to be gradually moved lcngth'nise along the supporting stud G and so that as said patteln-head revolves the, dolly-roll on the patteirlever n ill be caused to travel from one disk to the next, and thus to follow the spiral pattern-surface. It 'n ill be obvious that as the pattern-head is intermittently rotated by its pavl and ratchet the pattei n`levers L L n ill under the action of their respective spiral patternsurfac es be caused to operate the connectingwires k3 767, so as to throw the needle-bars D D, one or both, into and out of operation at the desired times, depending upon the form of the respective spiral pattern-surfaces.
In employing a spiral pattern-surface such as above described it is necessary when the roll of the pattern-lever lhas reached the end of the pattern-surface, either by the longitudinal movement of the pattern-head de- IOO scribed or by a corresponding longitudinal movement of the pattern-lever with relation to the pattern-head, that the parts shall be returned to their original position in order that the lever may be again caused to travel over the pattern-surface. In other words, as the pattern-surface in this case is not endless means must be provided for returning the parts to their original position. While this may be accomplished in various ways, itis preferred to thus return the parts to their original position. by a reverse rotation of the pattern-head, and thus to utilize the return movement for the production of a duplic ation of the design or repeat. In other words, the travel of the pattern-lever from one end of the spiral pattern-surface to the other vwhile the patlternehead is revolving in one direction may be used to' produce a given design, and the travel of the pattern-lever along the pattern-su"face in the reverse direction ty the revolution of the pattern-head in the opposite direction may serve to produc e the next repetition of the design in the continued length of the fabric. Thus a spiral pattern-surface composed of six disks, as shown, which will control the operationof the needle-bars for IIO nine hundred and sixty picks, as above stated, may bya mere reversal of the direction of revolution of the pattern-head be caused to control the operation of said needle-bars for one thousand nine hundred and twenty picks. If desired, instead of having the revolution ofthe spiral pattern-surface inone direction control the needle-bars for the production of a complete design it may serve to control said needle-bars for the production of onehalf of the proposed design measured lengthwise of the fabric, and the completion of said designV may be controlled by the revolution of the pattern-head in the reverse direction. By this arrangement a spiral pattern-surface composed of six disks, as shown, may with an eighty-tooth ratchet serve to-control a lappet design or repeat one thousand nine hundred and twenty picks in length.
The means employed for producing the reverse rotation of the pattern-head G in the construction shown is as follows: The pawl H-instead of being a single pawl and rigidly secured to the lever I is a double pawl provided with two engaging fingers h Z and is pivoted to said lever I at i. W hen the pattern-head is to be rotated in one direction, 4 the finger 7M is thrown into engagement with the ratchet g2, as shown in Fig. 9. l/Vhen the pattern-lever has reached the end of the spiral pattern-surface and the direction of rotation of the pattern-head is to be changed, the pawl H is turned upon its pivot so as to throw the finger L/ out of engagement with the ratchet g2 and the finger h2 into engagement with said ratchet. This is accomplished by the following means: Mounted upon the drum G5 adjacent to the last disk g3 of the pattern-surface is another disk h3, to which is vsecured a projection h4. p Preferably this disk Zta is constructed the same as the disks g3, with a projection in the form of a spiral terminating in` abrupt shoulders and so that said disk h3 may be interlocked with the last disk g3 and fitted closely thereto. This construction, however, is not necessary, and said disk h3 may be a plain disk. Vhen the disk [L3 is formed in the manner shown, it may, if desired, be utilized as a continuation of the pattern-surface for the greater portion of its periphery and would thus serve to extend the pattern-surface that much.
Secured to the pawl H 1s a sleeve Zr", pro- `jecting at right angles from the pawl, which sleeve surrounds the stud i', secured to or projecting from the lever Lwhich said stud i constitutes the pivot for said pawl. Surrounding the sleeve h5 is another sleeve ZL, keyed to the sleeve h5, so that rotary movement imparted to said sleeve Zt willbe transmitted to the sleeve h5 and consequently to the pawl H, while at the same time the sleeve h5 may move longitudinally through said sleeve h6. Secured to the bracket G2 is a bracket N, the free end of which is bent downward and provided with a forked end N, which forked end N is adapted to enter an annular groove formed in a projecting hub ZN, formedon the sleeve h6, as shown in Figs. 10 and 13. By this construction said sleeve ZL will be held against lengthwise movement, while the sleeve h5 and the pawl H will be permitted to travel lengthwise with the pattern-head G. Adjustably secured to the sleeve 712 are two collars Z Zz?, which are held in their adjusted position on said sleeve by means of set-screws hw hu. By loosening the set-screws h1 ZL the collars 77,8 he may be adjusted lengthwise on the sleeve h and may also be adjusted axially thereon. The collar hs is provided with a projection 7h12, and the collar ZL is provided with a projection ZL. As shown, these projections h1z h are in the form of screws or bolts and may thus be adj usted toward or from the pattern-head.
The tail of the pawl H is provided with a V-shaped projection Zt, adapted to be engaged by a V-shaped spring-pressed plunger i2, slidably mounted at or near the lever I. The V-shaped plunger is mounted in a casing i, secured to vthe lever l, provided with a screw-cap it, through which the reduced end i5 of the plunger projects. The spiral spring i abuts at one end against a shoulder formed on the plunger and at the other end against the screw-cap it. Each of the pattern-levers L L' is preferably provided with projections Z2 Z2, arranged to straddle the projecting portion 97 of the disk g3, as shown in Fig. l2. These projections Z2 Z`/l serve to prevent any accidental displacement of the pattern-lever and to retain it in proper position with relation to the spiral pattern-surface as it travels along the same.
The operation of the mechanism above described for effecting the reversal of the pattern-head is as follows: Assuming the pattern-lever L, for instance, to be in position on Vthe first disk to the left in Fig. 10, the pattern-head G will be rotated step by step by the action of the pawl H as said pawl is oscillated by the rotation of the cam-shaft K. As the pattern-head is thus rotated it will be caused to travel lengthwise on its supportingstud g, as above explained. This longitudinal movement of the pattern-head will be accompanied by a corresponding longitudinal movement of the lever l., the pawl H, and the sleeve he. The said longitudinal movement of the pattern-head will likewise serve to bring the projection 7b4 on the disk h3 in line with the projection 7tlg on the sleeve h and so that upon the next revolution of the pattern-head saidprojection h4 will come against the projection hw, and thereby impart al rocking movement to the sleeve ILS, and consequently to the sleeve h5 and the pawl H. This rocking movement of the pawl H will serve to turn said pawl upon its pivot f, and thus throw the finger Zt of said pawl out of engagement with the ratchet g2 and to throw the finger h2 into engagement with said ratchet. As the pawl H is rocked it will serve to depress the springressed plunger 2, the V-shaped end of whic i, acting'in cooperation with the \/-shaped projection 71"* on the pawl, will serve to quickly throw the pawl into its opposite position.V lith the finger zfZ of the pawl in engagement with the ratchet said ratchet and the pattern-head secured thereto will of course be rotated step by step in the reverse direction.
`When the pattern-head has been moved lengthwise back to its original position and so as to bring the pattern-lever into its original position with relation to the pattern-surface, it is necessary, ofcourse, that the pawl H shall be again rocked and the pattern-head again rotated in its original direction. This is effected by means of a projection on a disk j', which projection when the patternhead has been returned to its original position 'longitudinally will be brought in line with the projection 7L on the sleeve lt, and the rotation of the pattern-head will then cause said sleeve lt, together with the sleeve lt and the pawl H, to be rocked in the opposite direction.
ln order to hold the pattern-head G in the position to which it is moved by the pawl ll, a friction-brake N2 is employed, as shown in Figs. 6 and 9, said brake being in the form of a friction-strap, which is convenientlyT supported in place by having the two ends of the strap composing said friction-brake arranged to straddle the rod L`-, on which -the levers L L are pivoted, the ends of said frictionstrap being connected together by cross-bolts nf n2, and by means of which the tension of said friction-brake may be adjusted.
Referring to Fig. lll, which shows two handkerchicfs as successively formed in a continuous fabric, each of said handkerehiefs is shown as provided with a lappet design in the form of a border composed of individual lappet figures in the form of spots. ln the formation of the border or design there shown the side portions of the border, com'- posed of the eleven lappet figures or spots n, are produced under the control of one of the needle-barswas, for instance, the needle-bar D-while the cross portions of said border, composed of the nine lappet figures or spots o are formed under the control of the other needle-bar-as, for instance, D. The operation 'of the needle-bars in the formation of the lappet design shown is as follows: Assuming that'the complete design or lappet begins at a point midway between two adjacent handkerchiefs and terminates at a point midway between the next two adjacent handkerchiefs, both needle-bars D D will of course at the beginning of the design or repeat be out of operation, and the pattern-surfaces will be constructed to hold the needle-bars in their upper or inoperative position, as shown in Figs.' 15 and 16. After the required length of the plain weaving has been completed both needle-bars D D will be unlocked and thrown into operation and will be continued in operation while the lappet figures o, composing the cross portion of'the border, and the lirst two lappet figuresr/t of the side portionsV of Athe border 'are -being formed, .said lappet figures o, as abovestated` being formed under the control of the 1ie`edle bar D and said figures n beingl formed under the control of the needle-bar D. Then now the cross portion of the border hasl been completed, both needle-bars will be locked out of operation, as'indicated in the developments of the jntttern-surface shown in Figs. 1.5 and 16. The needle-bar D will continue to be held out of operation until the time arrives to produce the lappet figures 0 in the other cross portion of the border; but the needle-bar D will be intermittently thrown into and out of operation to produce the successive lappet-'ligures n, composing the side portions of the border, until the point is reached where the other cross portion of the border is to be formed, when both .needle-bars will be thrown intooperation to produce the end figures or spots a of the side portions of the border and the figures or spots o, compos ing the remaining cross portion of the border'. When these lappet figures have been completed, both needle-bars will be thrown ont of operation and will 'be held out of operation during the remainder of the design or repeat, which will be the dividing-line between the handkerchief O and the adjacent handkerchief O, at which point the direction of rotation of the pattern-surface is to be reversed, as above explained, and so that the adjacent handkerchief O will be woven in the same manner during the revolution of the patternsurface in the reverse direction.
As will be seen, the mechanism above described not only enables either one of the two needle-bars to be locked or held out of operation at will, but it enables a complete article to be woven or produced embodying a lappet design or repeat equal in extent to the extent of the article itself, the production of said lappet design or repeat and of the entire article being thus controlled by one or more pattern-surfzwes each of which controls the production of the complete article from beginning to end. It will be further seen that when two needle-bars and two pattern-surfaces are employed the two designs controlled by said pattern-surfaces, respectively, may be matched together to constitute a unitary symmetrical design composed in part of the design controlled by one of the pattern-surfaces and in part by the design controlled by the other pattern-surface.
The developments of the pattern-surfaces shown in Figsflr') and 1 6 show the projections llO IIS
and depressions on the pattern-surfaces and show how the periphery of each of the six disks composing each of the two spiral pat- Y tern-surfaces is to be formed. As above operated from the cam-shaft for nine eight hundred and ninety-six picks.
stated, with six disks employed to constitute the pattern-surface rovvision is made with an eighty-tooth ratc et andwith the awl undred and sixty picks, Whereas-the particular pattern shown is intended to occupy only As this would not involve the full capacity of the six disks shown, the design or repeat does not begin at the beginning of the first disk, but instead begins at the point p in Figs. 15 and 16 and extends only to the point p in said figures.
The construction and arrangement of the parts may be widely varied in embodying the features of invention and the novel combinations in different forms of looms, and I do not intend to limit my invention to the particular construction and arrangement of devices shown and described.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements of said needle-bar, substantially as described.
2. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements of said needle-bar in the production or' an article provided with a lappet design, substantially as described.
3. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements of said needle-bar from the beginning to the end of a complete article provided with a lappet design, substantially as described.
4. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements, of said needle-bar, a member cooperating with said pattern-surface, and means for rotating said pattern-surface, substantially as described.
5. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements of said needle-bar, a member cooperating with said pattern-surface, means for rotating said pattern-surface, and means for causing said cooperatingmember to traverse said spiral pattern-surface, substantially as described.
6. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements of said needle-bar, a member cooperating with said pattern-surface, means for rotating said pattern-surface, and means for moving said pattern-surface with relation to said cooperating member to cause said cooperating member substantially as. described.
to, traverse said spiral pattern-surface, substantially as described.
7. In a lappet-loom, the combination, with a needle-bar, of a spiral pattern-surface for controlling the vertical movements of said needle-bar, a memberwcooperating with said pattern-surface, means for rotating said pattern-surface, and lmeans vfor reversing the direction of rotation of said pattern-surface,
8. In a lappet-loom, the combination, with a needle-bar, ot a spiral pattern-surface for controlling the vertical movements of said needle-bar, a member cooperating with said pattern-surface, means for rotating said pattern-surface, means for causing said cooperating member to traverse said spiral patternsurface, means for reversing the rotation of said pattern-surface, and means for reversing the direction of traverse of said cooperating member, substantially as described.
9. In a lappet-loom, the combination, with a needle-bar, of a pattern-head provided with a spiral pattern-surface for controllingY the vertical movements of said needle-bar, a member cooperating with said ,pattern-surface, means for rotating said pattern-head, and means controlled by said pattern-head for causing said cooperating member to traverse said spiral pattern-surface, substantially as described.
10. In a lappet-loom, the, combination, with a needle-bar, of a pattern-head provided with a spiral pattern-surface 'for controlling the vertical movements of said needle-bar, a pattern-lever Vcooperating with said patternsurface, means for rotating said pattern-head, and means for moving said pattern-head with relation to said pattern-lever to cause said pattern-lever to traverse said spiral patternsurface, substantially as described.
1l. The combination of a spiral patternheadloosely mounted on a supporting-arbor, means for rotating said spiral head, and a stationary member engaging said spiral head, whereby the revolution of said spiral head will cause it to be moved lengthwise on its 'supporting-arbor, substantially as described.
l2. A spiral pattern-head composed of two or more disks, each disk being provided with a pattern-surface in spiral form, whereby when said disks are assembled to form the pattern-head a spiral pattern-surface Will be formed extending from one disk to the next adjacent disk, substantially as described.
13. A spiral pattern-head composed of two or more disks, each disk being provided With a projecting portion on which a pattern-surface is formed, the projecting portion of one disk being adapted to interlock with the projecting portion of the next'adjacent disk to form a continuing pattern-surface, substantially as described.
14. In a lappet-loom, the combination,
IOO
TIO
with two needle-b ars, of two patt ern-surfaces,
one Afor controlling the vertical movements oi each needle-bar, substantially as described.
15. In a lappet-loom, the combination,
i with two needle-bars, ot two spiral patternsurtaces for controlling the vertical movements of said needle-bars in the production ot an article provided with a lappet design, one ot said pattern-surfaces serving to control the production of a portion ol said lappet design, and the other pattern-surface serving to control the production of the remainder ol" said lappet design, substantially as described.
16. In a lappet-loom, the combination, with two needle-bars, of two spiral patternsurt'aces for controlling the movements ol" said needle-bars from the beginning to the end of a complete article provided with a lappet design, one of said pattern-surfaces controlling` one of said needle-bars lor the production of a portion of said lappet design, and the other pattern-surface controlling the other needle-bar for the production ol' the remainder ot' said lappet design, substantially as described.
17. In a lappet-loom, the combination, with two needle-bars, of two spiral patternsurfaces, one for controlling the veitical movement of each of said needle-bars, a member coperating with each ol" said pattern-surfaces, and means for rotating said pattern-surfaces, substantially as described.
1S. In a lappet-loom, the combination, with two needle-bars, of two spiral patternsurfaces, one vfor controlling the movement ot each needle-bar, a member cooperating with each of said pattern-surfaces, means for rotating said pattern-surfaces, and means for causing each of said coperatiiig members to traverse its spiral pattern-surface, substantially as described.
19. In a lappet-loom, the combination, with two needle-bars, of two spiral patternsurfaces for controlling the movements of said needle-bars, a member cooperating with each of said pattern-surfaces, means lor rotating said pattern-surfaces, and means for simultaneously moving said pattern-surfaces with relation to said cooperating members to cause said cooperating members to traverse said spiral pattern-surfaces, substantially as described.
20. In a lappet-loom, the combination, with two needle-bars, of two spiral patternsurfaces for controlling the movements of said needle-bars, a member cooperating with each of said pattern-surfaces, means for rotating said pattern-surfaces, and means for reversing the direction of rotation of said pattern-surfaces, substantially as described.
2l. In a lappet-loom7 the combination, with two needle-bars, of two spiral patternsurfaces for controlling the movements of said needle-bars, a member cooperating with each of said needle-bars, means for causing said cooperating members to traverse said spiral pattern-surfaces, means for rotating said pattern-surfaces, means for reversing the rotation ol said pattern-surfaces, and means for reversing the direction oi traverse of said cooperating members, substantially as described.
22. In a lappet-loom, the combination, with two needle-bars, of a pattern-head provided with two spiral pattern-surfaces for controlling the movements ol! said needlebars, a member cooperating with each of said pattern-surfaces, means for rotating said pattern-head, and means controlled by said pattern-head for causing said cooperating members to traverse said spiral pattern-surfaces, substantially as described.
23. In a lappet-loom, the combination, with two needle-bars, of a pattern-head provided with two spiral pattern-surfaces, a pattern-lever cooperating with each of said pattern-surfaces, means `for rotating said pattern-head, and means for moving said pattern-head to cause each of said pattern-levers to traverse its respective spiral patternsurfaces, substantially as described.
24. The combination of a pattern-head loosely mounted on a sup )orting-arbor, said pattern-head being providied with two sets of spiral projections constituting two spiral pattern-surfaces, means for rotating said pattern-head, and a stationary member engaging one set of said spiral projections, whereby the revolution of said pattern-head will cause it to be moved lengthwise on its supportingarbor, thereby eliecting a corresponding movement of said spiral pattern-surface, substantially as described.
25. The combination of a pattern-head loosely mounted on a supporting-arbor, means for rotating said pattern-head in opposite directions, means for moving said pattern-head longitudinally on its supportingarbor, and means controlled by the longitudinal movement of said head for reversing the direction of rotation thereof, substantially as described.
26. The combination of a pattern-head loosely mounted on its supporting-arbor, a ratchet and double-acting pawl for rotating said pattern-head, means for moving said pattern-head longitudinally on its supporting-arbor, and means controlled by the longitudinal movement of said pattern-head for shifting said pawl to change the direction of rotation of said head, substantially as described.
27. In a lappet-loom, the combination, with a needle-bar, of a pattern-surface for controlling the lateral movements of said needle-bar, and an independently-operated pattern-surface for controlling the vertical movements of said needle-bar, substantially as described.
28. In a lappet-loom, the combination,
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IIO
vlo
with a needle-bar, of a pattern-surface Jfor controlling the lateral movements of said needle-bar constructed to reciprocate said needle-bar both in its operative and in its inoperative positions, and an independentlyoperated pattern-surface for controlling the vertical movements of said needle-bar and the weaving of the lappet-threads, substantially as described.
29. In a lappet-loom, the combination, with a needle-bar, of a pattern-surface for controlling the lateral movements of said needle-bar, and an independently-operated spiral pattern-surface for controlling the vertical movements of said needle-bar, substantially as described.
30. In a lappet-loom, the combination,
with a needle-bar, of a pattern-surface for controlling the lateral movements of said needle-bar, and an independently-operated pattern-surface for controlling the vertical movements of said needle-bar, said last-mentioned pattern-surface being caused to advance at a slower speed than the patternsurface which controls the lateral movements of the needle-bar, substantially as described.
31. In a lappet-loom, the combination ot' two needle-bars and two pattern-surfaces, one for controlling the vertical movements of each of said needle-bars, one of said pattern-surfacesserving to control the action of one of the needle-bars to form one portion of a unitary lappet design and the other patternsurface serving to control the action of the other needle-bar to form another portion of such unitary lappet design, substantially as described.
32. In a lappet-l'oom, the combination,
I with two needle-bars, of mechanism for holding either of said needle-bars against vertical movement without aiecting the vertical movements of the other needle-bar, substantially as described.
33. In a lappet-loom, the combination, with two needle-bars, of two pattern-sur- Jfaces, one for controlling the vertical movements of each needle-bar, and mechanism whereby either needle-bar may be held against vertical movement without affecting the vertical movements of the other needlebar, substantially as described.
34. In a lappet-loom, the combination, with two needle-bars, oi' mechanism Jfor giving vertical movements to said needle-bars, two pattern-surfaces, mechanism controlled by one of said pattern-surfaces for holding one of said needle-bars against vertical movement, and mechanism controlled by the other pattern-surface for holding the other needle-bar against vertical movement, substantially as described.
35. In a lappet-loom, the combination, with two needle-bars, of mechanism adapted to impart vertical movement to both of said needle-bars or to either one of said needlebars independent of the other, substantially as described.
36. In a lappet-loom, the combination, with two needle-bars, of mechanism adapted to impart vertical movement to both of said needle-bars or to either one of said needlebars independent of the other, and mechanism for determining whether vertical movement shall be given to both of said needle-bars or to either of said needle-bars separately, substantially as described.
37. In a lappet-loom, the combination, with two needle-bars, of mechanism adapted to impart vertical movement to both of said needle-bars or to either one of said needlebars independent of the other, two patternsurfaces, and mechanism controlled by said pattern-surfaces for causing vertical movements to be given to both of said needles or to either one of said needle-bars independent of the other, substantially as described.
WILLIAM A. ROBINSON.
Witnesses:
W. H. THURsToN, J. H. THURsToN.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001835B4 (en) * 2006-01-14 2018-09-20 Ansaldo Energia Switzerland AG Combustor casings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001835B4 (en) * 2006-01-14 2018-09-20 Ansaldo Energia Switzerland AG Combustor casings

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