US1675516A - Shuttle - Google Patents

Description

July 3, 192s. 1,675,516

F. C. REINHARDT SHUTTLE Filed Oct. 22, 192'? www,

Patented `uly 3, 1928.

UNITED; STATES PATENT NoI-Fica FRANZ C. REINEARDT, OFPATERSON, NEW JERSEY.

. SHUTTLE.

7 In the art of forming 'ribbon having double shots of filling, so as to give fOr instance the ribbed effect characterizinr grosgrain, it has heretofore been deemed necessary to perform two successivejs'hutt'le passings, one for each shot, andto blnd 1n the -irst shot by a `crossing of a few ofthe warps before the other shot is effected'and the mainy crossing of the warps performed, thus to prevent the possibilityof thesec-7 ond shot of filling being Vcaused partially or wholly to rideup on orcrossthe first shot so that they would not ,liesideby side in the plane of the fabric for its full width and `hence roduce a defect..` This necessitated the oom performing two `complete cycles or picksto produce a" erossTrib-one for theffirst shoty and its binding-in by a crossing of a few of the war s, and another for the' second shotand the binding of both shots by the crossing ofA allV of the` warps. The obect of this inventionis to rovide a shuttleinthe use of whiehboth s ots of filling or weft thread can be effected' `at once ,and` regularly incor orated 'inw the nfabric so as to lie s ide'byI side in itsjplane for its "full width, thus 7 greatly to increase' productionbyamakingit possible to weave the samellength of goods by one-halfas many picks orcycles ofthe loom as heretofore. In the drawing, 7* Fig. 1 isa top plan View of `a shuttle embod ingmy invention; s, 7 *ig 2 isa front elevation thereof 7 Figs. 3 ande are sections oIi` linesi37-3 and 1s-7447, Figi; and 7`7 7` 7 Fig.7 5 s a plan of the fabric being formed andthe shuttle Alaying the iillingtherein. The shuttle 1 shown is of the bow tpe (here curved or arcuate in plan) Van is 7 equipped with the 7 usual 77springpressed brake to bear against and impose a certain degree of `friction resistance` ona supply' 3 oflling, arranged to rotateon t e "spindle 4, allofwhich may besubstantially as usual in. bow shuttles excepting that the supply 3 is according to my inventionjcomposed of two yfilling threads a` and b which are wound into a` package fortuinI `such supply without twist around cach; ot ier, as

Through thesepoutlets, whichare in the exppears where they extend from the sup` ample narrow "slits, `are respectivel extendedthe filling threads a and b. s hen the shuttle isi'n action, moving back and forth through the shed, first one thread andthen the other will encounter the abutment and be held thecloser to the fell, or as whatI herein `term the forward thread.

` There nisme'ans arranged within the bow and in a line cutting its rises 1h longitudinally of the 4shuttle to tension both threads.

This is alforded by two Guides 7 7, preferably elastically supported, as by springs 8 8 which may beaflixed tothe shuttle in holes 9 therein in a well-known way. The action of this means,7and more particularly of the two guides which .in the present example constitute the same, will be hereinafter set forth. 7 Iny the present example there is also auxiliary means to tension both threads, to wit, a `pair of guides 10 10, here elastically supported by springs 11 11 affixed to the shuttle in the same manner as springs 8 8 and preferably near the latter, and another pair of guides 12 12 arranged on a staple 13 at the inside of the summit of the bow. When all these guides are used `the 'preferable threading of the shuttle is that shown, where one thread extends through s one series of guides l7, 10 and 12 and then through one outlet 5 `and theother extends through the other series oguides 7, 10 and 12a-nd then through the other outlet 5.

Each outlet 5 extends from the summit of the bow back substantially to the aforesaid line cuttin the bow" rises longitudinally of the s uttle, their rear termini being in Fig. 1 indicated by the dotted line 14'.

`In weaving with one shuttle I have found in practice that in order uniformly to produce grosgrain in which each two shots of filling shall lie side by side in the plane of the fabric for its full width it is necessary not simply that one thread should be held forward of the other (as by abutment 6') but vthat they should be well spaced and that, the rearward thread should be subject to inferior resistance; their ultimate side-byside arrangement will be manifestly insured if the forward thread has an appreciable lead on the other and also if it is so tensioned vthat it will exert superior pressure in the convergence ofthe shed. This results in my construction mainly from placshuttle and extending the outlets 5 back substantially to said line. For then, whereas one thread (see b in Figs. l and 5) is in either flight of the Vshuttle held forward of the other and subject to resistance at 7 as well as at 6 the other thread is held well back ot' the first thread and is practically free of resistance at `7: guide 7 for this latter' thread is in Fig. l retracted by its spring against the rise of the bow, or inactive in tensioning, since the thread extends through it without deflection. In other words, when the shuttle, is reciprocating in weaving devices 7 8 7--8 are alternately stressed by the threads, and the one which is not stressed then sim ly contines its thread to reeving in more or ess a straight line and well back of the other or forward thread. y

It is ol course desirable that the forward thread be advanced by the pull oi' the shuttle as close as possible to the fell of the fabric l5 so as to reduce the likelihood ot the reed 16 (see Fig. 5),v in beating-up the two threads, disturbing their relation as determined by the shuttle; hence, and also to insure complete take-up o'lz the slack that would otherwise ensue in the l'irst part ot the shuttles flight in either direction, it is best to use auxiliary tension means, as l() l0 and 1212.

This is the first instance, so far as I am aware, where,given a double-thread-delivering shuttle having a bow provided with a forward thread-separating abutment and thread outlets for the respective threads extending back from said abutment, such shuttle also has means independent of the abutment for imposing on that thread which is held by the abutment relatively forward of theother thread on the flight of the shuttle ineither direction tension exceeding the tension on the other thread.

An important element of my invention is the employment of a single supply 3 having the threads wound to form the package without twist aroundeach other whereby, in the presence or' means in the shuttle, as 6 and the guides which separates them, they can be ted out of the shuttle without obstruction.

there the bow presents lin plan an arcuate outer face and has thread outlets one on each side of its summit and a threadseparating Vabutment at said summit and the outlets extend from the summit substantially to a line cutting the bow rises longitudinally of the shuttle, the thread which bends around the abutment can engage in the outlet for the other thread as shown at 1T in Fig. l; in short, the salient which the curved outer face of the bow presents to the straight line which the thread naturally assumes is cross-sectonally bifurcated so as to receive the thread, which would otherwise roll otl the bow, up or down, into a less fanote that vorable position for insuring the mentioned desired ultimate relation of the two threads. To insure the forward thread finding the outlet of the other thread in this way it is preferable to provide a groove 18 (Figs. 3

-and 4) at the summit, which connects the two outlets.

Having thus `fully described my invention, what I claim is:

v 1. A double-thread-delivering shuttle having a bow provided with a forward Athreadseparating abutment and thread outlets for the respective threads extending back from said abutment, said shuttle also having means independent of the abutment for imposing on that thread which is held by the abutment relatively forward of the other thread on the flight of the shuttle in either direction tension exceeding the tension on said other thread. j 2. A double-thread-delivering shuttle having a-bowprovided with thread outlets for the respective threads one on each side of its summit and with a thread-separating abutment at, said summit and also having means to tension both threads arranged in a line cutting'the bow rises longitudinally of the shuttle, said outlets each extending from said summit substantiall to said line.

`3. A double-thread-delivering shuttle having a bow provided with thread outlets for the respectiveV threads one on each side of its summit and with a thread-separating abutment at said summit and also having elastic means to' tension both threads arranged in a 'line cutting the bow rises longitudinally of the shuttle, said outlets each extending from said summit substantially to said line.

4; A double-thread-delivering shuttle having a bow provided with thread outlets for the respective threads one on each side of its summit and with a thread-separating abut- .ment at said summit and also having thread guides for the respective threads arranged each in a line cutti the bow rises longitudinally of theV shutt e, said outlets each extending from said summit substantially to said line. i

n 5. A double-thread-delivering shuttle having a bow provided with thread outlets for 'the respective threads one on each side of its summit and with a thread-separating abutment at said summit and also having elasticallv supported thread guides for the respective threads arranged each in a line cutting the bow rises longitudinally of the shuttle, said outlets each extending from i said summit substantially to said line.

6. A double-thread-delivering shuttle having a bow presenting in plan an arcuate outer face and provided with thread outlets for the respective threads one on each side of its summit and with a thread-sepav rating abutment at said summit, said outlets each extending from said summit substantially to a line cutting the bow rises longitudinally of the shuttle, whereby that thread which is held by the abutment relatively forward of the other thread on the Hight of the shuttle in either direction will engage in the outlet appertaining to the latter thread. i

7. A double-threacl-delivering shuttle having a bow presenting in plan an arcuate outer 'face and `provided with thread .outlets for the respective threads one on each side of its summit and with a thread-separating abutment at said summit, said outlets each extending Afrom said summit substantially to a line cutting the bow rises longitudinally of the shuttle and the bow having at said summit an exterior thread-directing groov connecting the two outlets. i

8. In combination, a shuttle having a bow provided with two thread outlets one on each side of its summit and with a thread-separating abutment at said summit, and a double-thread supply having the threads thereof wound into a package without twist around each other, said supply being revolubly supported in the shuttle and said threads being adapted to extend respectively through the two outlets.

` 9. A double-thread-delivering shuttle having a bow and provided with' thread outlets for the respective threads one on each side of its summit and with a thread-separating abutment, said outlets each extending back from said summit, and the shuttle having each side of said abutment means to receive and hold against displacement up or down relatively to the bow that thread, which trailingthe shuttle when in Hight, extends around said abutment.A

In testimony whereof I affix my signature.

FRANZ C. REINHARDT.

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