US351259A - Lbvi w - Google Patents

Description

(N0 Mod SHUTTLE FOR TAPE LOOMS. No. 351,259. Patented Oct. 19, 1886..

WITNESSES -,Z -IN TUR a; Q m W UNITE STATES PATENT OFFICE.

LEVI \V. FIFIFiLD, OF \VORCESTER, MASSACHUSETTS, ASSIGNOR'TO THE KXOlVLES LOOM \VORKS, OF SAME PLACE.

SHUTTLE FOR TAPE-LOOMS.

SPECIPIOATIOE? forming part of Letters Patent No. 351,259, dated October 19,1836.

Application filed August 21, 1884. Serial No. 141,110. (Nomodehl T0 azz whom, it may concern/.-

Be it known that I, LEVI W. FIFIELD, a citizen of the United States, residing at Worcester, in the county of \Vorccster and State of Massachusetts, have invented certain new and useful Improvements in Shuttles for Tape- Looms; and I declare the following to be a description of my said invention sufficiently full, clear, and exact to enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

The objects of my present invention are to make a shuttle for use in the looms specified, the construction of which will be more convenient, durable, and efficient than that of those heretofore in use, and to construct the body of the shuttle in such manner that the parts subject to wear can be renewed.

To attain these objects my invention consists in a shuttle, the construction, arrangement, and operation of which are shown in the drawings and explained in the following description, the particular subjectmatter claimed being hereinafter definitely specified.

In the drawings, Figure I is a plan view of my improved shuttle, a portion at one side being shown broken away to reveal parts beneath, also apart of a shuttle-guide. Fig. 2 is a section atline w it of Fig. 1, the bobbin being removed. Fig. 3 is a section at line x x of Fig. 1, showing the shuttle and its guide and an operative gear. Fig. 4 is a section at line y 3/ of Fig. 1. Fig. 5 shows an end, side, andseetion of the eye-bushing. Fig. 6 is a view of one of the rear ends of the front or how of the shuttle-frame, showing the groove and lip for hinging and retaining the frictional presserarm. Fig. '7 is a similar view of the other rear end of the bow, showing the groove or seat for confining the presser-arm spring and Fig. 8 is a sectional view, showing the manner of retaining the spindle-holding spring.

In referring to parts, A denotes the wood or body of the shuttle. As a feature of improvement in this I form the back or straight portion, a, in a separate piece from the bow or forward portion, a, the parts being fitted to each other, as shown, with a longitudinal ledge or offset along their line of junction, (6, and rigidly secured together by screws a, or equivalent fastenings. This construction permits of the back a being removed when the guiding-grooves b or racks 0 become worn to a degree that interferes with proper action, and of a new back being attached to the bow a, thus avoiding the necessity of renewing the entire shuttle when the part subjected to the greatest wear is the only portion requiring repair.

13 indicates the guide block or plate, on which the shuttle is supported and guided when in use, and 0 one of the gear-Wheels, by which the shuttle is propelled through the shed of the warp in the usual manner. Said guide and gear are hereinafter more fully described.

D indicates the spindle, E the bobbin, and F the friction pad or. brake.

The arm f or wire that supports thepad F has its end bent at a right angle (see dotted lines, Fig. 2) andlaid into a groove, 0, formed in the end of the how a, where it is retained by the back a, so as to form the hinge or center on which the arm swings. A lip of the wood, as at 0, Figs. 2 and 6, extends across the exterior and prevents the wire from being drawn out of the groove 0. The spring F, that presses against the arm f, hasits rear end confined in a longitudinal groove, f, between the parts a. and a of the body, and is so arranged that by loosening the screws a and moving said spring.longitudinally in its seat f it can be adjusted to bear on the arm at a position nearer to or farther from its hinge end, and thus give a greater or less frictional force of the pad F upon the bobbin E.

A spring, E, having a suitable depression or hole for receiving the point of the spindle D, is arranged within a suitable recess, g, formed in the wood of the bow a, (see Fig. 1,) which spring serves to press the spindle toward the opposite side of the bow and retain its head in the groove d. Said spring is retained in place by means of its backward turned end E", which is embedded into the frame or placed between the bow to and back a of the body-wood, and there clamped when the screws to are tightened.

"between two beads or slides, i e', that run loosely upon the rod, and small rings J J are arranged on the rod outside the beads, The spring I acts by expansion to force the rings J J apart or to the ends of the rod H.

In the threading ofthe shuttle the thread i from the bobbin is wove through a ring, 17, which is loosely attached to the front of the bow at, then through the ring J and the opposite ring, J, and from thence out through the eye-bushing K at the front of the shuttle.

Strain on the thread tends to draw the rings J J and sliding beads i t together and compress the spring I, and slack of the thread is taken "up by the expansion of the spring I.

' This take-up device works very freely and sensitively, is simple and convenient, can be easily constructed, and is not liable to get out, of order.

The eye-bushing K is made, as shown in Fig.

5, with a screw-thread cut on its exterior, and

it is screwed into the opening formed in the front of the body,'as indicated. By threading the bushing I avoid the usual liability of the bushing working loose and coming out of the shuttle, and also render it possible to change its position or partially turn it around, when the thread has worn grooves in its sides, so as to bring a new part of the surface to the wear.

The plate or guide-block B, on which the shuttle is mounted for action, consists of a single piece of sheet or thin metal having an offset head or overhanging flange, b,which works in a corresponding shaped kerf orgroove, 1), formed in the wood body of the shuttle. This guide-plate is secured to the lathe or batposed of the parts a a, arm f, and frictional presser F, of the spring F, having its end confined between the partsa and a in a longitudinal groove, f, and adapted for longitudinaLadju'stment, substantially as and for the purpose set forth.

2. The combination, with the shuttle-body formed in two parts, one of which is provided with the lateral groove 6 and the overhanging lip e, of the friction presser-armf, having its end bent at an angle and laid into said groove and confined by said lip, as set forth.

3. The combination of the bobbin-supporting spindle D, having an offset beveled head, with the shuttle-body provided with the bow having the undercut beveled groove d at one side for receiving said spindle-head and a recess, g, at the opposite side, and a spring located within said recess and furnished with a hollow or depression to receive and hold the point of said spindle, and a backwardturned end set into the frame, wherebysaid spring is retained in position, substantially as set forth. 4. The combination, with the shuttle-frame provided with the bow (1, having the eye K, and the bobbin-supporting device, of the rod H, the guide-rings J J, slidesi z, and spring I, mounted on said rod, and the guide-ring 1', connected with the shuttle-frame, substantially as and for the purposes set forth.

Witness my hand this 19th day of August, A. I). 1884.,

LEVI w. FIFIELDQ

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