US895131A - Underclearer or "fluker" for spinning and twisting machines. - Google Patents

Description

- PATENTED AUG. 4, 1908. N r. D. WILLIAMS 6; W. GREENWOOD.

UNDERGLEARER 0R FLUKBR FOR SPINNING AND TWISTING MACHINES.

' APPLICATION FILBDJUKE 16, 1906.

A awmwbow THOMAS DAIXS WILLIAMS AND WILLIAM GREENWOOD, OF OLDIIAM, ENGLAND.

UNDERCLEARER OR FLUKER FOR Specification of Letters Patent.

SPINNING AND TWISTING MACHINES.

Patented Aug. 4, 1908.

: Application filed June 16, 1906. Serial No. 322,055.

To all whom it ma 1 concern:

Be it. known that we, THOMAS DAIXS WILLIAMS. and WILLIAW GREENWOOD, of Oldham, in the. county of Lancaster, England, have invented certain new and useful Improvements in Underclear rs or Flukers for Spinning and 'lwisting Machines, of which the following is a specification.

In connection with spinning and twisting machines, underclearers or llukers are applied for the purpose of keeping the bottom rollers free from waste cot ton and by taking up broken ends to prevent them from wrapping round the delivery rollers. It is usual to drive the umlerclearers by mounting them in frictional contact with the bottom rollers. This method is subjectto defects chief among which is the insufficient clearing action of the underclearer resulting in the production of lappers and bad ends.

\Vhen the underclearer is supported in direct contact with the bottom fluted roller, the said underclearer runs. as a matter of necessity, at the same surface speed as the fluted roller. The waste sliver therefore wraps around the underclearer in exactly the same state as it leaves the nip of the upper leather roller and the bottom fluted roller of thespinning frame. This tends to cause the sliver to wrap tightly around the underclearer and the accumulating sliver is made to assume a still .more hardened and compressed form upon the underclearer, due entirely to the fact that the said undcrclearer is in direct contact with the fluted roller.

In order to obviate the defects mentioned, we drive the undercleareis in a special manner as will now be described.

Of the accompanying drawings: Figure 1 is a front OlOVittlOll of so much of the rollers of a ring frame as is necessary to show our invention. Fig. 2 is a sectional side elevation on line -.EF in Fig. 1. Fig. 3 is a sectional view of a complete ring. Fig. 4 is a front elevation of one half of a ring.

In carnving out our invention, we mount upon the bottom fluted roller. at intervals, rings, rollers, or bosses A. The rings or rollers can be made of wood, fiber, india rubber or metal, preferably the latter, and

they act as drivers for the underclearers or flukers G. \Ve preferably mount two rings upon each section or length of the bottom fluted roller B. By the use of the rings A the miderclearers C are caused to travel at l a greater surface speed than the bottom rollers. In consequence of the uuderclearer running at a greater surface velocitv than from the main sliver passing between the rollers is attenuated and in consequence made thinner and softer. It is this attenuated sliver that is taken up by the underclearer although, in our constructiom said underclearer does not rotate in contactwith the bottom fluted roller. 'Iherefore no coinpressing or hardening, of the waste sliver results, and owing directly to this, the operative can remove the waste sliver from the underclearer without having to resort to a metal picker as has heretofore been done.

Since the waste which the umlerclearers take up is more loosely wound around their periphery than formerly, and is consequently more easy to remove, not only are metal pickers rendered unnecessary, but our invention also minimizes the production of bad ends, lappers {MK riders, and makes piecing up easier and facilitates the production of better piecings.

As the sliver passes through the three pairs of rollers of a spinning frame, it moves in an almost horizontal direction as opposedto a. circular direction. When the sliver emerges from the nip of the last pair of rollers it will, if it be free, follow this horizontal direction for an appreciable distance, and then curl inward and follow the circular travel of the rollers. In consequence of this feature of the travel of the waste slivers, it is )ossiblc for a roller set slightly below the ottom fluted roller to take up the waste sliver. Moreover, a number of fibers project quite sufficiently from the outside of an untwlstcd sliver from the surface of a fluted roller.

The distance between the bottom fluted roller B and the umlerclcarer C in our construction is only a slight one, but it is suffi cient for the purpose stated. This distance is determined by the thickness of the rings, rollers, or bosses A which, as indicated in Figs. 3 and 4, may comprise two metal half rings fastened on the fluted roller where rcquired, by means of screws D.

Having now described our invention, what we claim is:

The combination with a bottom fluted roller and the under-clearer of a spinning and does the bottom fluted roller, the fiber taken I sliver to enable a roughened surface to at tract them and to draw the whole of the IUD clearer, the said underclearer being out of contact with the fluted portion of the roller, the said rings being of greater diameter than the fluted portions of the roller to drive the underolearer at a greater surface speed than the fluted portion of skid roller.

twisting machine, of driving rings mounted In testimony whereof we have .aifixed our on said fluted roller and engaging the undersignatures, in presence of two w1tnesses THOMAS DAINS WILLIAMS. WILLIAM GREENWOOD.

Vv'itnesses:

FRANK NASMITH, ERNALD SIMPSON MosELEY.

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