US1049304A - Stripping means for machines for stitching together piece ends. - Google Patents

Description

Versely to and ARTHURISHERWOOD, 0F HYDE PARK,

KENYON, 0F MANC sA i e .I. .i a

n oFrioE.

IVZQSSACHUSETTS, ASSIGNOR TO THOMAS HESTER, ENGLAND.

STRIPPIN G MEANS FOR MACHINES FOR STITCHIN G TOGETHER. PIECE ENDS.

Specification of Letters Patent.

Patented Dec. 31,1912.

To all whom it may concern:

. "Be it known that I, ARTHUR Isnnnwoon, a subject of Great Britain, residing at Hyde Park, in the county of Norfolk, State of Massachusetts, have invented a certain new and useful Improvement in Stripping Means for Machines for Stitching Together Piece Ends, of which the following is aspecification, reference being had therein to the accompanying drawings- The invention is applicable more especially to machines designed for stitching together piece-ends; that is to say, to machines for stitching together the final end of one piece or web of cloth and the leading end of a second piece or web, and so on successively, in order that a.series of pieces or webs may be joined together in a continuous succession, as required in various processes of treating cloth in which the material travels lengthwise through the apparatus in which it is operated upon.

Machines at present in use for the purpose stated are provided with two series of po nts or pins traveling side by side at a short distance apart, and passing, respectively, at opposite sides of stitching devices. Two piece-endsto be united to each other are impaled upon the said points or pins, one piece above the other. By the onward movementor travel of the points or pins the two piece-ends, one thereof lying upon the other as just explained, are. fed transpast the stitching devices, and thereby united by a line of stitches (seam) extending across the pieces at a short distance from the extremities thereof.- As the stitching progresses, the projecting extremities are trimmed off close alongside the line of stitches, beyond the said line, by trin'iming devices located beyond the stitching devices. At the delivery side of the stitching devices the material is removed from the points or pins, and devices have heretofore been provided for stripping the material from the points or pins. Diiliculty has been experienced, however, in effecting the removal or stripping of the narrow widths that are trimmed oif from eyond the line of stitches. These narrow widths have a tendency to remain clinging to the points or pins, particularly in the case of light-weight or coarse-mesh goods, and devices such as priortothe'present invention were in general use have proved in out forms and constructions.

Application filed June 12, 1911. Serial No, 32,662,

etlicient. In some cases, such devices have tended to become clogged with threads or portions of cloth carried to them by the points or pins, with the result that the points or pins have been broken.

The invention employs, in the combination with one or more continuous traveling series of points or pins of a machine for stitching together the said series, and preferably, though not necessarily in all instances, having slots or openings through which the points or pins project to receiy e the piece-ends thereon, the. path of the said continuous stripping means diverging from that of the points or pins after passing the stitch-making point,

so that the stripping means lifts the pieces pins and frees of cloth from the points or them from the latter.

The invention may be embodied in diifer- Oneembodimentof the invention is illus trated in the drawings, in which latter,-

Figure 1 shows in perspective certain of the'. gen ral features of a ,so-called whaleback pi, ce-end sewing machine, with the said embodiment applied thereto. ig. 2 shows in side elevatlon the parts which are shown in Fig. 1, the fixed frameworktbeing represented merely, in outline. f l

Having reference to the drawings, the fixed framework is marked 1, and at 2 are represented the stitching devices, which in practice may be of any approved character. The two traveling series of points or pins upon which the piece-ends to be joined together are impaled are indicated at 3, 4, they being shown as carried, in the case of the form of machine chosen for the purpose of illustrating invention into effect, see dotted lines in Fig. tion of the machine, at front and rear of the stitching devices, the said chains slide along fixed guideways or pathways (not necessary to be shown since they are of well-known character). The chains extend also around driving sprocket-wheels at 6, Fig. 2, and adjustable carrying bowls or pulleys at 7, same, figure. Traveling move ment in the direction of the arrows in Figs. 1 and 2 is communicated to the chains by devices not necessary to be shown. The trimming devices, represented by a pair of by endless chains 5, 2. In the upper porpiece-ends, continuous stripping means traveling in unison with one manner of carrying the cutter-disks w, 00, coacting with each other, are located to act upon the piece-ends at a point slightly beyond the stitching devices,

, traveling series of points or pins a traveling stripper consisting of an endless flexible band 8 having openings or slots, as at 8, to receive the said points or pins. In the upper portionof the machine, in advance of the stitching devices, the stripper" band ocpins,

- points or pins projectthe stripper-band. In traveling to and past cupies a position at the bases of the points or andthe cloth-receiving portions of the through and above the, stitching devices and trimming devices the stripper-band remains in this position at the bases of the points or pins, but at a convenient point at the delivery side of the trimming devices I mount upon a stand or bracket 9 projecting from the fixed frame 1 a guide-sheave or roll 10 by means of which the stripper-band is guided outward from the bases of the points or pins and entirely clear of the latter. At this place in the conjoint travel of the series of points or pins and.the stripper-band the latter, and with it thev portions of cloth impaled upon the said points or pins, are lifted entirely above and clear of the points or pins. Thereby the said portions of cloth are effectually and completely stripped from the points or pins.

After passing the -guide-sheave or roll 10, the stripper-band is conducted below the 7 lower portion of the series of points or pins and the carrying chain for such series, the said stripper-band being supported and guided by means of guide-rolls 11 and 12, mounted upon stands 13, 13, carried by the fixed frame 1 at opposite ends of the latter, such guide-rolls being located properly to hold the returning portion of the stripperband entirely clear of the points or pins at the places where the said carrying chain passes around the driving sprocket-wheel (S and the guide-bowl or pulley 7. After changing their .direction of movement around the carrying bowl or pulley 7 and guide-roll 12, the traveling chain and stripp'er-band converge, the pins of the traveling chain reentering the slots of the stri perband, and the band lying close to the a'sesthe machine.

What is claimed as the invention is,

or pins on which vthe piece-ends- 'to' be stitched together are impaled, and by the travel of which they are fed past the stitching devices, of a continuous flexible stripper the points or pins.

2. The combination with stitch; devices, and a continuous traveling serie ofpoi'nts stitched together are impaled, and by' the travel of which they are fed past thestit'chsite sides of said stitching and trimming devices, on which the piece-ends to 'be stitched together are impaled, and by the-travel of trimming devices, of stripping means traveliug in unison with the two series of points or pins, the paths of said series and strip-. ping means diverging after passing the stitch-making and trimming points, where- 95 by the pieces of cloth are freed from the points or pins. I

In testimony whereof I affix my signature in presence of two witnesses.

.ARTHUR isHEnwooD.

lVitnesses NATHAN B. DAY,

Ci-I As. F. RANDALL.

of the pins throughout the upper-portion of 1. The combination with stitching devices, Z l i and a continuous traveling series of pointsee traveling in unison with the said-series,'the 65 paths of said series and stripper ;-divergin-g after passing the stiteh-making point,wherel by the stripper frees the pieces ofeloth from;

or pins on which the piece-ends itogbe ing devices, of a continuous'flexible stripper traveling series of, points ,or pins at oppowhich they are fed past the stitching and

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