US1276084A - Loom-shuttle. - Google Patents

Description

A. LAVERDIEHE.

1.00M SHUTTLE.

APPLlC ATl0N FILED JAN. 3!, 1916.

1 ,"27 6 ,084. Patented Aug. 20, 191 8.

r prion,

ARISIIIDE LAVEBDIELRE, OF GILBERTVILLE, MASSACHUSETTS.

LOOlVI-SHUTTLE.

Application filed January 31, 1916.

1 '0 all whom it may concern:

Be it known that I, Anisrinn Lnvnunrnnn, a citizen of the United States of America, residing at Gilbertville, in the county of lVoreester and State of Massachusetts, have invented certain new and useful improve ments in Loom-Shuttles, of which the following is a specification.

This invention relates to improvements in loom shuttles, and provides an eye and tension for the weft or filling, the construe.- tion of the parts being such that the invention may be readily applied to loom shuttles and to shuttles of like character by merely enlarging the aperture for the usual eye of the shuttle.

The object of my improvement is to provide a. shuttle tension in which the weft engaging member or presser and its spring will be housed within a cylindrical body portion that is located in a bore formed in the shuttle, the presser and its spring being associated so that the spring will bear against one of the walls of a recess in the body portion to move the presser against an opposite wall of the recess, as .will be hereinafter set forth.

in the accompanying drawings which illustrate a preferred form of my invention, Figure 1, is a plan view of a portion of a loom shuttle showing the tension device applied thereto. Fig. 2, is a side elevation. 3, is a section on the line 3-3 of Fig. 1. Fig. -l, is a longitudinal section of the tension device detached. Fig. 5, is a side elevation, partly in section, and in this view a portion of the casing for the body portion of the tension device is broken away. Fig. 6, is a sectional view on the line 6-6 of Fig. at. Fig. 7, is an inverted plan view of the presser block or member. Fig. 8, is an end view. Fig. 9, is an end view of the presser block, and Fig. 10, is an end view partly in section of a modification of the presser block.

Referring to the drawings, the shuttle 11 is provided through one side with. an aperture or bore 12 which extends from the outer side of the shuttle into a cavity formed in the shuttle, such bore being cylindrical and of a size to receive the tension device, the shuttle is also provided with a smaller bore or opening 13 that is located opposite the center of the bore 12, the purpose of the opening being to admit of the Specification of Letters Patent.

Patented A11 2t 1918.

Serial No. 75,324.

insertion of a punch or like implement used to force the tension device out of the bore 12, when it may be desired to remove the tension device from the shuttle, either for the purpose of expanding the spring or for smoothing the weft or thread engaging surface of the presser block.

The body portion of the tension device comprises a cylindrical member 14, which between its ends is provided with a recess or opening that providesa chamber 15, for the presser block and its spring, the member 14 is bored longitudinally to provide thread or weft eyes, the ends of the way for the thread 16 being rounded or countersunk to avoid sharp edges, and it will be noted that the thread passage 16 is out of line or eccentric with the longitudinal axis of the cylindrical member 14, and by so positioning the thread passage 1 provide a range of adjustment that is sufficient to locate the eye in alinement with the side recess 17 of the shut tle. The locating of the opening or thread passage eccentric to the longitudinal axis of the cylindrical member 14 is desirable as in practice the bore 12, in fitting my tension device to old shuttles may be slightly out of line with the side recess; The length of the body portion or member 1a is such that one end will extend through the wall of the shuttle, as shown by Fig. 1, to position the inner end of the tension device in line with the center of the bobbin and to admit of access to a screw that secures a casing to the member 14, which screw also indicates the position of the presser.

The cylindrical member 14 is preferably made of hard metal, porcelain or other suitable material, and has an aperture for a screw 18 that connects a casing 19 to the member id. The casing or cover 19 is made of comparatively soft metal as brass or copper and not only insures a tight fit in the bore of the shuttle in which the tension device is placed but such cover also serves to close the chamber for the presser block and its spring to prevent displacement thereof, when the tension device is marketed as an article of manufacture, separate from the shuttle.

I The presser block 20 may be provided on its upper side with a centrally located boss 21 the circumference of which has a recess to receive the lower portion of a spring 22, and instead of having a projecting boss a recess 21 may be formed in the presser block, either the boss or the recess will main tain the spring in engagement with the central portion of the presser plate. The underside of the presser plate 20 is shaped to provide concave portions 23, a centrally located transverse portion 24 which is flat and shoulders 25 which are on the same plane as the transverse portion 24, the shoulders 25 prevent rocking of the presser plate upon the fiatsurface of the bottom wall of the chamber 15 against which the presser block is forced by the spring 22. When the presser block and its spring are placed in the chamber the spring will be compressed and one end of the spring will engage the upper wall of the chamber.

In practice the diameter of the casing for the body port-ion will be substantially the same as the exterior of the eye that is supplied for shuttles, that are usually pro vided in the way for the thread or yarn with a filling brush and my improvement takes the place of the filling brush and the ordinary eye and my improvement may be used with a filling brush particularly when it is desired to either oil or moisten the filling thread or yarn.

The shuttle tension hereinbefore described may be cheaply manufactured, the spring and the presser block may be removed from the body portion so that the spring can be expanded to give the requisite pressure of the presser block toward the flat surface of the chamber and upon the thread. lVhen the parts are separated the presser block and the flat wall of the chamber may be smoothed by filing or grinding to obliterate any groove or grooves that may be formed therein by the passage of the thread. The convex portions of the presser block assist in admitting the tool or hook that is usually used in threading the tension device, and in use the tension device will hold the weft or filling taut and prevent kinking while weaving, and the fibers on the weft or filling will be laid as the same is drawn between the presser block and the wall of the body portion.

The design of the presser block may be varied, particularly as to the configuration of its face which engages the filling, and I prefer to locate the chamber in the body portion to one side of the center of the body portion, the cover may have a rough exterior or it may be screw threaded, in order to positively engage the bore in the shuttle.

I claim.

1. A tension device for loom shuttles, comprising a cylindrical body member having throughout its entire length a longitudinal bore which is inte sected by an open sided transverse chamber that has one of the walls thereof on the same plane as the thread engaging portion of the longitudinal bore, a presser-block maintained entirely within the chamber and having in line with the longitudinal bore a fiat centrally located thread engaging portion one end of which is curved, means on the opposite side of the presser block from its thread engaging face for attaching thereto one end of a coiled spring, a coiled spring attached to the presser block and engaging with one of the walls of the chamber, and a casing which encompasses the body member.

2. A tension device for loom shuttles,

comprising a cylindrical body-member hav ing a longitudinal bore which is intersected by a transverse open sided chamber one of the walls of said chamber being in line with a portion of the longitudinal bore, a presserblock maintained within the chamber and having a flat centrally located thread engaging portion; curved ends and side shoulders, and a coiled spring attached to the presser-block said spring engaging one of the walls of the chamber.

3. A tension device for loom shuttles com prising a cylindrical body-portion having a longitudinally and eccentrically positioned bore, and an intermediate transverse chamber one of the walls of which is on a line with the longitudinal bore, a presser-block having in line with the bore intermediate convex portions, a coiled spring attached to the presser block and engaging with one of the walls of the chamber.

ARISTIDE LAVERDIERE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0.

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