US594402A - Loom-shuttle - Google Patents

Description

(NO 'Modem l A. ISHERWOOD. LOOM SHUTTLE.

No. 594,402. Patented NOVl 30,1897.

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NrTnD STATES Q ATnNi Ferca.

LOOM-SHUTTLE.

SPECIFICATION forming part of 'Letters Patent No. 594,402, dated November 30, 1897.

Application filed February 15, 1897l Serial No. 623 ,538. (No model.)

To all wtom it may concern,.-

Be it known that I, ALFRED IsHnRWooD, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful` Improvements in Loom-Shuttles; andI do hereby declare the following to be a full, clear, and exact description of the i n vention,such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in loom-shuttles.

The prime objects of my invention are to obviate the necessity of employing the usual transverse pin for pivotally supporting within the shuttle-body the spindle, which pin, when the shuttle-body becomes worn by use, cuts and destroys the reed, and to substitute therefor a cheaply-constructed and easilyapplied device that is contained wholly within the shuttle-body, cannot under any circumstances become exposed to destroy the reed, which is capable of adjustment so as to fit snugly within its seat and of being held by the usually-employed spring holding or retaining bolt, and which will securely pivot the spindle in such manner as to absolutely prevent any looseness or side play of the latter; to provide a convenient and successful tension for the thread; to construct the same in a durable manner and of durable material, and, finally, to provide a convenient means of adjusting the same so as to increase or decrease the tension.

Many other minor objects and advantages of my invention will hereinafter appear, and the novel features of my invention will be particularly pointed out in, the appended claims. l

Referring to the drawings, Figure l is a plan view of a loom-shuttle constructed in accordance with my invention, the cop being shown in position upon the spindle within the shuttlebody. Fig.'2 is a central longitudinal sectional view of the loom-shuttle, the cop removed. Fig-3 is a transverse sectional view of the loom-shuttle body, the copspindle and its supporting devices being removed. Fig. 4 is a longitudinal sectional view of one end of a loom-shuttle, the same embodying my invention and being adapted for a bobbin-iilling and therefore being provided with a bobbin-catch. Fig. 5 is a plan view in detail of the tension-plate. Fig. 6 is a reverse or bottom plan view of the same. Fig. 7 is a perspective view of themechanism employed for securing the spindle in position within the shuttle-bodyto Wit, the spring, bolt, yoke, Washer, and nut, these parts being shown assembled in their proper relative positions. Fig. 8 is a detail inplan of the spindie-supporting yoke.

Like numerals of reference indicate similar parts in all the igures of the drawings.

The shuttle-body l has the usual external appearance and formation and at one end of its filling-opening 2 is provided with a cavity 3, which communicates therewith and is gradually decreased in depth toward the outer or opposite end. At the longitudinal middle of the shuttle-body the opposite walls, together with the intersecting bottom of the cavity 3, are provided with a groove 4E, that portion thereof in the bottom forming a continuation of those in the sides. This continuous groove in cross-section is in the present instance slightly more than half-round, it being, as Will hereinafter appear, designed to receive the spindle-supporting yoke 5. The stock from which the yoke is formed being round, the groove is of course made to conform thereto, so that should other than round stock be employed in forming the yoke the groove would likewise be changed in its transverse contour.

The'under side of the shuttle-body at about midway the cavity 3 is provided with a cavity 6, and the same communicates with the cavity 3 by a boltl1ole 7, connecting `the upper end of the cavity 6 and the bottom of the cavity 3.

The yoke 5, which, as before stated, is intended for pivotally supporting the spindle, partakes somewhat of the numeral 6 in that it includes the two opposite side bars 8, the end bar 9, the intermediate bar 10, and beyond the same the extended loop ll, between which and the intermediate bar 10 a space occurs. It Will be obvious that the yoke may be expanded laterally, so as to cause it to lit most snugly within the groove 4, into which it is slid endwise, the loop 1l of the yoke being to the rear and surrounding the bolt-hole 7. The head 12 of the spindle 13 is given the IOO usual formationthat is, is provided with the hook ll for pivotally engaging with the crossbar 9 of the yoke, so that said cross-bar serves as the pintle of the spindle in the same manner as does the ordinarytransverse pin, whose objectionable use is thereby obviated.

The slightly-bowed spring l serves its usual function and occupies its usual position in the upper end of the cavity 3. This spring may be perforated to receive the usual bolt or, as herein shown, it may be provided upon its under side with a pair of spacedapart parallel and horizontally-disposed lips 16, which prevent the necessity of perforating and weakening the spring, and between which and the said spring the head of the bolt 17 is interposed, the body of the bolt being cinbraced by the said lips. The bolt passes down through and is embraced by the loop ll of the yoke, which is adjusted to fit the same, whereby the yoke is prevented from withdrawal or any longitudinal movement whatever, and afterward passes down through the bolt-opening 7 and into the cavity 6 in the under side of the shuttle-body, where it terminates. A washer 1S is applied to the bolt at this point, the under side of the washer being provided with corrugations and its upper side with one or more ribs or spurs 19,'the latter being forced into the fiber of the wood of which the shuttle-body is composed by means of a nut 20, the upper side of which is provided with ribs 2l, which engage with the grooves in the under side of the washer, so that, the spring drawing the bolt and nut upward, so as to facilitate such interlocking of the parts, and the bolt being incapable of turning, as well as the washer, it will be seen that no amount of jarring can loosen the nut. In addition to forming a part of the nut-lock the spring performs its additional though usual function of retaining the spindle either in its lowered or raised position.

In shuttles where it is desired to employ a bobbin-filling, and it is therefore necessary to employ a bobbin-cateh, the washer is omitted and, as shown in Fig. l, the rear end of the bobbin-catch is shaped to form a crimped head, with which the ribs on the upper side of the nut interlock. In said figure, 22 represents the bobbin-catch, and the crimped head that takes the place of the vwasher 1S, as described, the remainder of the parts being the same.

The usual cavity 24, in the bottom of which is set the pot-eye 25, is in the present instance located nearer the end of the shuttle-body, and a second communicating cavity 2G is formed between it and the throat- 27, which leads to the filling-opening. The bottom of this lattercavityis recessed to a depth slightly in excess, as indicated at 28, of that of the tension-plate 29, which is designed to fit within the recess, and in the present instance, like that of the recess, is circular. A countersunk opening 3l is formed in the center of the tension-plate for the reception of an adjusting and retaining screw 30. Arranged under the plate in the bottom of the cavity is a light bowed spring 32, (see Fig. 2,) the tendency of which is to elevate the plate as far as is permitted by the said screw. The under side of the plate is preferably perfectly smooth, but the upper side is roughencd, preferably in a manner similar to-a iile, as indicated at the throat of the pot-eye will be caused to pass over this roughened surface of the tension-plate and its movement will be more or less retarded in accordance with the position of the plate as adjusted and retained by the screw. Where no tension is desired, the plate may be reversed, so as to bring its smooth side uppermost. To increase the tension, the screw is rotated slightly, so as to raise the plate, and to decrease the tension the screw is rotated in the reverse direction, so as to depress the plate correspondingly and against the tension of the spring.

The numerous objects and advantages of my invention, as set forth in the preamble of this description, will be readily seen and appreciated from the foregoing, and it will be seen that these numerous objects, which it is not deemed necessary to reiterate, are accomplished in a simple and economical manner and without any complication whatever or at any sacrifice to the durability of the shuttle as a whole.

Having described my invention, what I claim, and desire to secure by Letters Patent, isf- The thread passing through IOO l. A loom-shuttle having a recess formed in advance of its pot-eye and in the path to be traveled by the thread, and a plate removably seated in the recess and adapted to be reversed, said plate having a file-like surface to slightly retard the passage of the thread, its opposite surface smooth, substantially as specified.

2. A loom-shuttle having a recess formed in advance of its pot-eye and in the path traveled by the thread, in combination with a plate having a file-like surface for slightly retarding the passage of the thread, and means for raising and lowering the plate, substantially as specified.

A loom-shuttle having a recess formed in advance of its pot-eye and in the path traveled by the thread, in combination with a plate having a file-like surface and a central perforation, a screw passing through the perforation into the bottom of the recess, and a spring arranged between the bottom of the recess and the under side of the plate, substantially as specified.

4. The combination with the body of a loomshuttle, the same having a spring-receiving longitudinally-disposed cavity at one end of and communicating with the filling-opening thereof, of a lateral yoke-frame located in the cavity and having a front transverse portion forming a pintle occurring at the front end of the cavity, a spindle having a head IIO loosely engaging the said pintle, a spring bearing on the head, and means for retaining the spring under tension and retaining the yokeframe, substantially as specified.

5. The combination With the body of a loomshuttle, the same having a cavity at one end of and communicating with its illing-opening, said cavity having its sides provided With a longitudinal groove, of a yoke located removably therein, the front end of the yoke being provided With a transverse pintle, a spindle having its head pivotally connected With the pintle a spring bearing on the head of the spindle, a bolt passing through the spring and rear end of the yoke and for retaining the spring under tension and the yoke in position and against Withdrawal, substantially as specified.

6. The combination with the body ofaloomshuttle, the same having a cavity at one end of and communicating With its filling-opening, the side Walls of Which cavity are provided With a longitudinal groove and the bottorn with a bolt-hole, of a longitudinally and transversely expansible yoke-frame, comprising a rectangular portion, tting the groove in the cavity and a rearward-curved extension forming a loop encircling the bolt-hole, a spindle having its head pivotally connected to the inner end of the frame of the yoke, a spring bearing on the head and located in the upper end of the cavity, and a bolt secured to the spring and provided With means at its lower end for retaining the spring under tension, substantially as specified.

7. The combination with a shuttle-body having a cavity at one end of and communieating With its filling-opening, the bottom of said cavity being provided With a bolt-hole and having its side and end Walls provided with a continuous groove, of the yoke 5 fitting the groove7 a spindle having its head pivotally connected to the front cross-bar of the same,y a bolt passed through the bolt-hole and the loop ll of the yoke, a bowed spring seated on the head of the spindle and connected to the bolt and occupying the upper end of the cavity, and means for retaining the spring under tension through the medium of the bolt, substantially as specified.

8. As a new article of manufacture, the herein-described spindle-supportin g yoke, the same comprising the opposite side 8 transverse connecting-bars 9 and l0,and the curved extension ll beyond the latter bar, substantially as specied.

In testimony whereof I affix my signature in presence of tWo Witnesses.

ALFRED ISHERWOOD.

Witnesses:

ERNEST JONES, AUGUs'rUs C. TRIPP.

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