US607724A

US607724A - Shield or deflector for drawing-rollers

Info

Publication number: US607724A
Authority: US
Publication date: 1898-07-19
Anticipated expiration: 1915-07-19

Description

No. 607,724. Patented July l9, I898.

T. WOLSTENHOL'ME. v SHIELD 0R DEFLECTOR FOR DRAWING ROLLERS.

(Application filed Mar. 18, 1897.)

2 Sheets-Sheet I.

(No Model.)

T. WOLSTENHOLME.

Patehted July 19, 1898..

SHIELD 0R DEFLEGTOR FOR DRAWING ROLLERS.

(Application filed Mar. 18, 1897.)

2 Sheets-Sheet 2 y 1 I I UNITED j STATES 1 tries.

ATENT SHIELD OR DEFLECTOR FOR DRAWlNG ROLLERS.

SPECIFICATION forming part of LettersPatent No. 607,724, dated July 19, 1898.

Application filed March 1 8, 1 8 9 7.

To 00% whom it may concern:

Be it known that I, THOMAS WoLsrEN- HOLME, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented a Shield or Deflector for Drawing- Rollers of Spinning-Machines, of which the following is a specification.

My invention relates to machinery used for spinning textile fibers, such as wool, cotton, silk, and the like; and it consists of a device for preventing the licking in of strands of the partially-twisted yarn during the process of spinning.

My invention is fully illustrated in the accompanying drawings, in which Figure 1 is a cross-section of the drawingrollers of a spinning-mule, showing in connection therewith a device in accordance with my invention. Fig. 2 is a front elevation of sufficient of the drawing-rollers of the mule to illustrate the application of said device thereto. Fig. 3 is a view illustrating a modification, and Fig. 4E is a view illustrating another device for carrying out my invention.

It is well known among manufacturers of fine-spun yarn that loose ends or strands of the partially-twisted yarn as it emerges from between the drawing-rollers are caught by the lower fluted or ribbed drawing-roller and carried thereby down to the rotating undercleaner, a cloth-covered roller situated beneath the outer fluted roller, the strands becoming wrapped or wound around said undercleaner. This licking 0r lapping of the strands may be caused by a certain amount of electricity generated between the fluted roller and the twisted yarn or may be due to humidity or other atmospheric conditions and is a source of loss in a spinning-mill which it has been found impossible hitherto to prevent.

My invention consists of means for preventing the licking in of these loose strands by the fluted roller and in one form comprises a bar of metal or other suitable material mounted contiguous to but not touching the outer fluted roller, so that it will serve as a shield or deflector for loose fibers or strands drawn down by the fluted roller, or the device in another form comprises a hollow bar or pipe perforated or slotted to direct a jet or jets of air upwardly in proximity to the face of the Serial No. 628,193. (No model.)

roller, was to direct the strands or fibers away from the same.

' In the drawings, A represents the rollerstand, supporting the drawing-rollers a a a a Above thisrolleustand are mounted a series of arms B, having guideways b for the reception of the spindles d of the back roller D and the carrier-rollers D and D parchment-roller D mounted above the front bottom fluted roller, is lighter than the other rollers,land to impart the necessary pressure to the yarn as it passes between this roller and the front bottom fluted roller a saddle E rests upon the spindle of the roller D and to this saddle is attached the weighted stirrup E.

. The rollers hereinbefore described constitute the well-known form of drawingrollers common to spinning-mules, and underneath the front bottom fluted roller is the ordinary revolving under cleaner 11, supported in place adjacent to the front bottom fluted roller and adapted to clean said fluted roller of all strands that mayhave been caught by the same, this roller being mounted in suitable notches in the ends of the weighted levers F, pivoted at f.,

Mounted in front of the lower fluted drawing-roller a is a bar G, which constitutes the subject of my invention and which acts as a shield ordeflector for engaging the fibers or strands which would otherwise be carried down by the roller a to the under-cleaner and The directs said fibers or strands away from said lower fluted roller,so that they will be can ght up by the yarn and twisted in with the same.

The bar G preferably has a straight inner face and a curved outer face, although it may be of any desired form not incompatible with the proper performance of its function, and it is mounted so that its upper edge is located substantially in ahorizontal plane passing through the center of the lower fluted drawing-roller and is in'close proximity to the periphery of said roller, but not in actual contact therewith. V V

As there is always a certain amount of dust floating around a spinning-mule and as there are also some short small particles of yarn constantly dropping off the twisted roving, it is preferable to make the bar with smooth rounded outer surface, because such a construction will prevent to the greatest extent such dust and particles from lodging thereon, and by mounting the bar'vertically, so that its inner face and sharp edge will be parallel 'or nearly parallel to the vertical diameter of the lower drawing-roller, this result is materially aided. Furthermore, during that time when the mule returns to allow the twisted yarn to be spun upon the cop there is little or no danger of the yarn picking up dust or foreign material from the bar. However the bar G is mounted the sharp angle or knifeedge presented by the top of the same should be closest to the periphery of the roller, so that there will be no likelihood of strands or fibers passing down between said upper edge and the roller.

The bar may extend along a series of sets of drawing-rollers, as shown in Fig. 2, and its opposite ends may be dropped into sockets formed in brackets J, mounted upon the roller-stands A, or may be supported in any other available manner, but preferably so that it may be readily lifted out of or readjusted to its place, as circumstances may require.

If desired, the shield or deflector-bar may be carried by the levers F, which carry the under-cleaner, as shown in Fig. 3, the contact of said under-cleaner with the lower fluted roller serving to limit the approach of the bar G toward the front of said roller, or

any other available form of stop being used for the purpose.

In spinning the coarser grades of yarn I may use either alone or in addition to the shield or deflector G an air-current for the purpose of directing loose strands or fibers away from the periphery of the roller a. For instance, as shown in Fig. 4., I may make the bar G hollow and slot or perforate the upper edge of the same, so that a current of air will be directed upward across and in contact with the forward face of the roller a, thereby directing upwardly and outwardly away from the same any loose fibers or strands which might otherwise be carried down by said roller and be caused to engage or lap around the under-cleaner. The air-current in this case acts in addition to the bar G, which performs its function, as before; but the air-current alone may be used, if desired, such current being derived from a perforated or slotted pipe so located in respect to the roller 04 as to give said air-current its proper direction.

Having thus described my invention, I claim and desire to secure by Letters Patent- 1. The combination in a spinning-machine, of a pair of drawing-rollers and an undercleaner in contact with the lower drawingroller, with a sharp-edged bar mounted in front of but not touching the lower roller, and so located with respect to the lower drawing-roller that its sharp edge is substantially in a horizontal plane passing through the center of said drawing-roller, and serving as a shield or deflector whereby the loose fibers or strands from the partially-twisted yarn emerging from between the rollers are directed away from the periphery of the lower drawing-roller, substantially as described.

2. The combination in a spinning-machine, of a pair of drawing-rollers and an undercleaner in contact with the lower drawingroller, with a sharp-edged bar having a straight inner face and a curved outer face, said bar being mounted vertically in front of but not touching the lower drawing-roller, and so disposed with relation to the said drawing-roller that its sharp edge is substantially in a horizontal plane passing through the center of the lower drawing-roller, and serving as a shield or deflector whereby loose strands from the partially-twisted yarn emerging from between the rollers are directed away from the periphery of the lower drawing-roller, substantially as described.

3. The combination in a spinning-machine, of a pair of drawing-rollers, and an undercleaner in contact with the lower drawingroller, with a sharp-edged bar having a smooth outer face mounted vertically in front of but not touching the lower drawing-roller and having its upper edge closest to the periphery of said lower roller and disposed substantially in a horizontal plane passing through the center of saidlower roller, so as to deflect loose fibers or strands away from said periphery, substantially as described.

4:. The combination in a spinning-machine, of a pair of drawing-rollers, an under-cleaner, bearings for the same, weighted levers carrying the under-cleaner for keeping it in contact with'the lower drawing-roller, and a bar carried by the outer ends of the weighted levers and disposed in front of the lower drawing-roller and serving as a shield or deflector whereby loose strands from the partially-twisted yarn emerging form between the rollers are directed away from the periphery of said lower roller, the contact of said under-cleaner with the lower drawing-roller serving to limit the approach of the bar toward the same, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

THOMAS WOLSTENHOLME.

Witnesses:

MURRAY 0. BOYER, Jos. H. KLEIN.