US1678039A - Spinning frame - Google Patents

Description

N N\ N\ N INVENTOR W B W M ATTORNEY SPINNING FRAME Filed Feb. 4, 1927 J. P. GAREY Patented July 24, 1928.

PATENT OFFICE.

JOHN P, GAREY, OF ELMIRA HEIGHTS, NEW YORK.

SPINNING FRAME.

Application filed February 4, 1927. Serial No. 165,787.

This invention relates to spinning frames, and aims to reduce the amount of labor required in tending such machines, by providing improved means for aligning the upper drawing rolls.

Owing to the fact that it is frequently necessary to remove the upper drawing rolls, it has heretofore been customary to Journal the ends of such rolls in open rectangular recesses in the fingers of the cap bar. The lubricant which must be supplied to the bearings thus provided causes the fly to collect in the recesses, so that, in order to secure proper operation of the upper rolls, 1t is necessary at frequent intervals to pick out this fly from the end bearings.

The present invention .aims to elimlnato the collection of fly at the end bearings of top rolls, removal of the top rolls. Since the top rolls rest upon and are supported by the lower rolls which drive them, the end bearings of the top rolls do not have to carry the weight of the top rolls or to resist the pressure applied to the top rolls by the sad dle, but need only restrain the ends of the top rolls against sidewise movement so as to keep them parallel to the axes of the lower rolls. I have found that, because of the comparatively slight strain on the end bearings, it is possible to do away with all lubrication at the ends of the top rolls. This is accomplished in accordance with the invention by providing the top rollswith end bearings. each of which comprises cooperating metallic and non-metallic cylindrical bearing surfaces.

The manner in which the invention is carried out may best be understood from a detailed description of a specific embodiment of it shown in the accompanying drawings, in which:

Fig. 1 is a front elevation of the drawing rolls of a spinning frame, showing parts of the roll stand supporting them;

Fig. 2 is an end elevation sectioned on the line 2-2 of Fig. 1; and

Fig. 3 is a fragmentary top view, showing one of the top rolls in axial section.

The upper rolls 13, 14, 15 are made of metal, although the rolls are, of course, provided with the usual friction coverings 10, 10, 11, 11, 12, 12. Each of the rolls is provided with an axial bore 16 in each of its ends. The end bearings for the front rolls without interfering with the easy.

are provided by non-metallic studs 18, each of which has a square head 19 adapted to fit loosely in one of the square recesses 20 customarily provided in the fingers F of the cap bar G, and a round shank 21, fitting loosely within one of the bores 16. Since the heads 19 of the studs 18 hold them against turnlng, the bearings about which the rolls rotate are formed by the cooperating cylindrical surfaces of the bores 16 and the shanks 21 of the studs. The need for lubricating these bearing surfaces is avoided by making the studs of non-metallic material, about which the metal rolls revolve without material friction when no lubricant is used. Compressed wood fibre has been found a desirable material for the studs.

The fact that the end bearings are enclosed within the rolls, and more especially the fact that no lubricant is used on these bearings, prevent the collection of fly on them. At the same time, the top rolls may be removed from the fingers of the cap bar as easily as when the open bearings heretofore customarily were provided.

The invention is not limited to the specific structure disclosed. Thus while it is desirable that the bores in opposite ends of each roll terminate within the enlarged portions of the roll, so that the roll is not weakened by the bores, it is nevertheless possible to extend these bores until they meet, which amounts to providing a single bore extending through the entire length of the roll. In this case, the shanks may be similarly extended and joined to provide a fixed non-metallic arbor on which the roll may rotate.

What I claim is:

1. In a. spinning frame having upper rolls, and lower rolls on which the upper rolls rest, the combination of metal upper rolls and non-metallic bearing pieces engaging said rolls and holding them parallel to the axes of the lower rolls.

2. In a spinning frame, the combination with a cap bar containing non-circular recesses, of a single piece of metal providing a top roll having spaced enlargements, and having in the outer end of each enlargement a separate axial bore which terminates within that enlargement, and bearing studs having round shanks entering said bores and non-circular heads loosely resting in the recesses of the cap bar and restrained against rotation thereby.

3. In a spinning frame having a cap bar, the combination of a metal upper roll con taining bores in its ends, and non-metallic bearing studs having round shanks entering 5 said bores and non-circular heads resting in recesses in the cap bar.

4. In a spinning frame having a cap bar, the combination of a metal top r011 having bores in its ends and bearing studs having 10 round shanks of compressed Wood fibre en tering said bores and square heads resting in recesses in fingers of the cap bar.

5. In a spinning frame, the combination of a metal top roll containing an axial bore, and an externally-supported, non-metallic mem- 15 her providing a cylindrical bearing surface Within said bore.

In testimony whereof I have hereunto set my hand.

JOHN P. GAREY.

Images