US2211731A - Spinning and twister frame - Google Patents

Description

Aug. 13, 1940. J. PATERSON 2,211,731

SPINNING AND TWISTER FRAME Filed Aug. 16, 1959 2 Sheets-Sheet 1 IN V5 NTOR.

A 7' TORNE Y Aug. 13, 1940. J PATERSQN 2,211,731

I SPINNING AND TWISTER FRAME Filed Aug. 16, 1939 2 Sheets-Sheet 2 ATTQRA/' Patented Aug. 13, 1940 2,2liJ3i SPINNING AND TWISTER FRAME James Paterson, Saco, Maine, assignor to Sacc- Lowe ll Shops, Boston, Mass, a corporation of Maine Application August 16,

3 Claims.

This invention relates to spinning and twister frames (hereinafter included generically in the term spinning frames) and is more specially concerned with the supporting means for the ring rails.

It is the universal custom to support the ring rail of a spinning or twister frame on the upper ends of a series of vertical lifter rods. These rods are mounted in guides and are operated by lever arms actuated in unison from a builder motion at the head end of the frame. It is, of course, necessary to apply lubricating material either to the lifter rods or to the guides in which they operate, and this fact is a source of considerable trouble, partly due to the tendency for lint and fly to collect on the lubricated surfaces of the rods, but more especially because a broken end running to a bobbin located adjacent to one of the lifter rods is very likely to come in contact with the lubricated surface of the rod and thusto become smeared with oil. While the machine tender, in piecing up, is supposed to break out any soiled portion of the yarn, this can only be done with that section of yarn between the break and the delivery rolls because that portion of the yarn between the break and the bobbin is instantly wound on the bobbin. These oil coated sections of yarn cause much trouble in subsequent operations. Accordingly, the tendency is to run the lifter rods just as dry as possible. That, however, does not entirely obviate the difiiculty because some lubricant must be used.

The present invention aims to devise a c0nstruction in which the difficulties above described y will be avoided.

The nature of the invention will be readily understood from the following description when read in connection with the accompanying drawings, and the novel features will be particularly pointed out in the appended claims.

In the drawings,

Figure 1 is a plan view of a portion of a box rail and means for mounting a ring rail lifter rod in accordance with this invention;

Hg. 2 is a front elevation of the parts shown in Fig. 1;

Fig. 3 is a vertical, sectional view of the construction shown in Fig. 2, the plane of section being at one side of the lifter rod;

Fig. i is a perspective view of a shield for the upper portion of the lifter rod;

Fig. 5 is a plan view of the bracket mounted on the lifter rod for supporting the ring rail; and

Fig. 6 is a perspective view of a novel form of 1939, Serial No. 290,373

lifter rod guide bracket provided by this invention.

Referring first to Figs. 1, 2 and 3, a box rail of a common form is there shown at 2. This rail is adapted to support a line of spindles, holes for receiving the spindle boxes or bases being shown in Fig. l at 3. A ring rail of a common form is shown at 4 and it is intended to be supported by a series of lifter rods, one of which is indicated at 5. So far as the foregoing features are concerned, the present invention requires no departure from the usual constructions.

It has been customary, however, to mount the lifter rods substantially in line with the spindles. This is a logical construction for the reason that the spinning rings carried by the ring rail l necessarily are substantially concentric with the spindles. According to the present invention, however, the lifter rods are located at the back side of the box rail 2 where they are spaced rearwardly from the spindle line by a substantial distance. This arrangement moves the lifter rods far enough away from the spindles so that the danger of a broken end striking one of the rods is materially reduced.

In addition to the foregoing, the invention also provides a guard or shield 6 which encircles about of the lifter rod. In other words, this shield extends around that portion of the lifter rod which is exposed above the box rail when the ring rail is at the upper limit of its traverse and protects it for a circumferential extent of approximately 240. There is little danger of a broken end striking the very small portion of the lifter rod exposed at the side thereof opposite to the spindles.

The two departures from prior constructions just described necessitate both a novel mounting of the ring rail on the lifter rod and also a new form of guide bracket for the lifter rods.

The ring rail bracket is illustrated at l in Figs. 2, 3 and 5, and its construction will be readily understood from the drawings. It comprises a head portion a, Fig. 5, apertured as shown at b to receive the reduced upper end of the lifter rod 5, and two parallel flanges joined at both their inner and outer ends and tapering from the part a toward the opposite end of the bracket. The ring rail 3 rests on the upper surface of this supporting member and is secured thereto by screws. This bracket also includes a reduced collar portion c to which the upper end of the shield 6 is secured rigidly by screws.

The guide bracket for the lifter rod is shown in general at 8, Figs. 1, 2, 3 and 6. It comprises a body portion (1 adapted to rest against the back side of the spindle rail 2 and to be secured thereto by bolts 9. A lug e integral with the bracket overlies the top of the box rail and assists in the support of the bracket. Formed integral with this member are upper and lower guides f and g, respectively, drilled for the passage therethrough of the lifter rod 5 and so spaced that they afiord lateral support for it at the desired points. Since the shield or guard 6 must move up and down with the ring rail, the upper guide 1 is connected with the body d of the bracket by means of two inclined arms h, and a curved slot, best shown at y in Fig. 1, is formed between these arms and between the guide 1 and the body portion d of the bracket to receive the guard and to afford the freedom of travel required by it. Preferably the arrangement is such that this guard does not touch any part of the bracket 8.

The invention thus provides a construction in which the danger of a broken end striking a lifter rod is minimized both by the shield 6 and also by the location of the lifter rod under the rearward edge of the ring rail where it is spaced by a substantially greater distance from the bobbins than in the customary arrangements. The shield is interposed between the entire surface of the rod with which a broken end would be likely to come in contact, and this is true throughout the entire range of travel of the ring rail. Since this arrangement substantially eliminates any danger of contact of the yarn with the lifter rods, it is safe to lubricate them more effectively.

Having thus described my invention, what I desire to claim as new is:

1. In a spinning frame, the combination of a ring rail, a box rail adapted to support a series of spindles in cooperative relationship to said ring rail, means supporting said ring rail including a lifter rod, and a guard mounted for movement with said rod and shielding the side of said rod adjacent to the line of spindles.

2. In a spinning frame, the combination of a ring rail, a box rail adapted to support a series of spindles in cooperative relationship to said ring rail, means supporting said ring rail including a lifter rod, a sheet metal guard partly encircling the rod and interposed between the portion of said rod projecting above the box rail and the line of spindles.

3. In a spinning frame, the combination of a ring rail, a box rail adapted to support a series of spindles in cooperative relationship to said ring rail, means supporting said ring rail including a lifter rod, a stationary guide for the liiter rod, and a guard shielding the part of said rod above the box rail, said guard being mounted to move up and down with the rod and said guide accommodating the guard.

JAMES PATERSON.

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