US858662A - Loom-shuttle. - Google Patents

Description

PATENTED JULY 2, 1907.

J. E. LBMYRE.. LOOM SHUTTLE. APPLICATION FILED 00T.24, 1906.

FEE.

UMTED STATES PATENT onirica,

JOSEPH E. LEMYRE, OF MANCHESTER, NEW HAMPSHIRE'.

LOGHI-SHUTTLE Specicatibn of Letters lratent.

PatentedJuly 2, 1907.

Application filed October 24,1906. Serial vNo. 340,348. i

To all whom 'it may concern:

Be it known that I, JOSEPH E. LEMYRE, a citizen of' that purpose and is applied to the passage through whichv the yarn or thread passes from the bobbin through the shuttle at that end. The principal objection to the use of felt at this point and for thispurpose is that it quickly becomes worn out, cut, or smooth and hence is too easily destructible or too quickly loses its frctional quality.

My invention consists in a certain novel construction whereby a friction-mechanism is produced which is exceedingly lasting, retains its frictional quality, and has other advantages, said construction being fully described in the accompanying drawings, in which:- l

Figure l is a top view or plan of a sufficient portion of a loom-shuttle to illustrate my invention. Fig. 2 is a longitudinal vertical' section of the same. Fig. 3 is a cross section of the shuttle looking toward the right and showing my improved friction-mechanism in end elevation. Fig. 4 is a horizontal section taken through the passage containing theballs. Fig.. 5 is` an elevation of the slide removed.

Similar letters of reference indicate corresponding parts. 5

a-represents the spindle; b the bobbin; and c the shuttle.

d represents the passage'in the side wall of the shuttle through which the yarn or thread e passes out. Located in thek shuttle, which is suitably chambered out for .the purpose between said'passage and that end of the bobbin from which the yarn is unloaded, is a case or frame, preferably metallic, `and comprising the horizontal bot'-4 tom wall g and the opposite longitudinal side walls h, said side walls being separated from each otherby a longitudinal horizontal passage lc curved in 'cross section andI describing yin said section almost a 'complete circle. This passage intended to receive balls l. The side walls h extend uplverticallyl until their upper ends are nearly or quite iush with the upper end of the shuttle at that point, as illustrated in the first three figures of the drawings; the inner surfaces or sides of said walls h flaring outward from the narrow longitudinal passage or slit which connects with the passage Ic.

The outer end of the passage c 'is provided with any suitable means for retaining the balls in thev passage at that end, such as slight projections n extending inward or radially, las shown in Figs. 2 and 4; and the front end A of 4the passage is closed, after the balls have been inserted, by means of a slide p whose upper edge is preferl ably provided with acentrally 'curved notch r corresporidng approximately to the curvature of the passage k. This slide is adapted to be inserted in and moved horizontally in a slideway s which isproduced by means ofa horizontal extension t integralwith the bottom g and provided at its inner end with an upturned lip u bifurcated at 'v whereby upwardly extending prongs fw are produced, each of whichis bent at w tocorrespond with the beveled upwardlyextending portions y of`the slide formed by the notch r. Thus the slide p is prevented from vertical movement by the prongs w, w

and from horizontal movement by the body o f the shuttle itself, but is readily removable by lifting the case or frame g h out of the shuttle. This case is retained in position in the shuttle by means of a screw z which holds a downward extension m integral with the4 case in a vertical countersunk hole x in the bottom ofthe shuttle.

To remove the friction-mechanism, first remove the screw z and then lift the case g h out of the shuttle. To

remove or insert any or'all of the balls, draw out the slide p while the case is removed from the shuttle.

In practice the thread e, as it leaves the sh'uttle, passes through the passage k on its way to the passage dand the friction of the balls on or against the thread pro# duces the proper tension. Inasmuch as the thread, of course, in leaving the bobbin passes continually around the end of the spindle, it enters the passage in a circular manner and is drawn under and among the series of balls in a constantly varying line, receiving all the time the kfrictional effect desired. The thread is retained in position by the `circular shape of the passage and is applied by means of -the beveled or flaring entrance q (Fig. 3) which guides the thread'through the narrow slit or passager: into the passage c. It will readily be seen that these balls are not easily worn out or cut, and will retain their shape and effect indefinitely, thus rendering the friction uniform. The friction desired for yarns of different thicknesses can be increased or lessenedby `enlploying more or less balls or balls ofsmaller or larger diameter, /thus producing more or less weight or pressure on theyarn as it passes through the passage among the balls. l 'A v It is apparent that this device is applicable to any. or-

shuttle by simply cutting away the stock to fit the case.

Having thus fully described my invention, what I v claim, and desire to secure by Letters Patent, is:- I

1.*In a loom-shuttle, a case or frame located in theshuttle between the interior thereof and the out1et-hoie through which the thread or yarn leaves the sbuttle, said l case or frame being providedvwith a 4passage through vwhich the thread or yarn passes on its way to theoutlethole, friction-ballslocated in said passage in the path of' the threud'or yarn, means at one end of said passage for preventing the escape of the balls without obstructing the passage of the thread, and a removable slide located at the other end of said passage and provided with an opening smaller in diameter than the balls for the passage of the thread, for the purpose set forth. 4

2. In a loom-shuttle, a. ease or frame located in the shuttle between the interior thereof and the outlet-hole through which the thread or yarn leaves the shuttle, said rase or frame being' provided vWith a passage through which the thread 01' yarn passes on its way to the outlethole, friction-balls located in said passage in the path of the thread or yarn, means at one end of said passage for preventii'igl the escape of the balls without obstructing the passage of the thread, a slide located at the other end of `the passage and provided with an opening smaller in diY ameter than the balls, and an upiurned lip extending from the bottom of the case over the slide and preventing; vertic'al movement thereof, said lip being provided with :in opening for the passage of the thread, for the purpose ser forth.

ln testimony whereof I have signed my name to this speciiication in the presence of two subscribing witnesses.

JOSEPH E. LEMYRIC.

Witnesses J. A. Boivin', ERNEST L. DUC'rIL.

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