US932977A - Means for cleaning the drawing-rolls of roving-frames, &c. - Google Patents

Description

A. P. ESGUBOS. MEANS FOR CLEANING THE DRAWING'ROLLS 0P ROVING FRAMES, 6w.

APPLICATION FILED JULY 28. 1908. I Patented Aug. 31,- 1909.

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932,977. Patented Aug. 31, 1909.

2 SHEETS-SHEET 2.

Swarm ton,

UNITED STATES PATENT FFICE.

* ALBERTO PLANAS ESCUBOS, OF BARCELONA, SPAIN.

MEANS FOR CLEANING THE DRAWING-ROLLS OF ROVING-FRAMES, 800.

To all whom it may concern."

Be it known that I, ALisnn'ro PLANAS EscUnos, a subject of the King of Spain, residing at Barcelona, in the Province of Barcelona, Spain, have invented certain new and useful Improvements in Means for Cleansing the Drawing-Rollers of Roving- F 'ames, Drawing-Frames, Combing-Machilies, and the Like; and I do hereby der-lare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it a ppertains to make and use the same.

This invention relates to improvements in means for cleansing the drawing rollers of roving frames, drawing frames, combing machines and like cotton spinning machines and has for its object to maintain said rollers in a perfectly clean condition, so as to prevent the soiling of the threads under treatment. To this end, namely to remove the waste from the drawing rollers of the spinning machines above referred to, brushes have been hitherto employed arranged in various ways, either cylindrical and revolving brushes, or moving or fixed brushes of the surface plate type, or fixed brushes formed with a concave surface; but in all cases, one brush has been applied to each of the drawing rollers. In practice it has been found that the devices above referred to may be applied to the upper or pressure rollers of the cotton spinning machines, but as regards the lower or fluted metal rollers, it has been found that only fixed brushes formed with a concave surface are suitable, though the great deal of waste whlch theypick up is one of the principal causes, or perhaps the chief cause of the soiling of the threads.

My invention consists in fitting the upper drawing rollers as well as the lower drawing rollers with concave brushes adapted to retain the waste of the rollers and followed by cylindrical revolving brushes adapted to pick up the waste from the concave brushes. The latter are independent of the circular brushes which are covered with suitable material and work by gravity on or against the upper rollers and by sprmgs or weights upon the lower ones.

In carrying out my improved system or combination of brushes, 2'. e. concave fixed brushes and circular revolving brushes, I provide a mechanism composed of two parts, one which corresponds to the upper rollers Specification of Letters Patent.

Application filed. July 28, 1908.

to the operative position.

Patented Aug. 31, 1909.

Serial No. 445,847.

and the other to the lower rollers. As regards the upper rollers, said mechanism consists substantially of two parallel beams located above the upper rollers and at right angles to their axes, which are fitted with as many bearings as brushes have been provided for, and each bearing is fitted with a groove to freely hold the concave brush and with another groove to hold the circular brush, so that the brushes are always in contact, by gravity, with the corresponding roller, and may be raised and lowered again The beams and bearings are so disposed that their position may be regulated at will, according to the predetermined distance to be left between the drawing rollers.

As regards the lower rollers, the mechanism is composed substantially of two supports or platforms, one at each side adapted to hold the concave brushes, and they are fitted with springs whereby the circular brushes are also held in proper position. Each support is connected to a rod adapted to be held in position by means of a weight or spring, so that the whole does not constitute a rigid system, but it enables the brushes to accurately adapt themselves to the working surfaces of contact. The concave brushes in contact with the rollers receive a pressure independent from that imparted to the revolving brushes, whereby suitable elasticity is given to the whole system.

This invention retains the advantages incidental to concave brushes and to circular brushes, vithout their inconveniences which are neutralized by the peculiar form and arrangement of parts of the mechanism.

In the accompanying drawings, Figures 1 and 2 represent a part of a drawing frame with my new or improved mechanism having concave and revolving brushes applied to the four upper rollers; the improved niechai'iism is applied only to two of the lower rollers, as in practice a greater number thereof will not be necessary. Fig. 1 is a sectional view taken on line 1, 2, 3, of Fig. 2 in direction of the arrow -4 and Fig. 2, is a front view, part in section on line -45- in direction of the arrow 6 showing the tap broken away.

-aare the lower fluted rollers and bare the upper pressure rollers which are usually covered with skin. Above each of the upper pressure rollers Z) is a conate and cover partially cave brush c and behind it there is a circular brush Below each of the two last tinted. rollers -a--- is a concave brush c and behind it there is a circular revolving brush a' The contact surface of all these rollers is covered with velvet or other suitable material and said contact surface may be larger or smaller according to the kind of work to be performed. The brushes are so disposed that when the machine at work, the rollers a 7) revolve in direction of the arrows The operation of the device is as follow When the machine is at work, the rollers --u---i5-- carry along the waste and transfer it to the concave fixed brushes -cc but the revolving brushes (-7) being placed adjacent thereto, take up all the waste as it emerges from the brushes cc and roll it over in the form of a lap or fleece.

At each end of the circular brushes 72 is a beam 0 which is rigidly secured to the cover 11, adapted to cover all the mechanism. The up per part of the cover 2'- is formed with a suitable opening covered by a top plate j--, the object being to facilitate the adjustment of parts and to control the operation of the brushes. The front end of the plate -j forms a pocket j to receive the short fiber waste which sometimes is thrown away from the first and second rollers and is carried along in the air between the cover and the brushes, thus preventing such waste from being mixed with the wrought lap. The top plate j has its edge j bent upward so as to be held in place when raised; Gnthe opposite end the top plate -j is provided with a catch cwhereby it may be raised and lowered.

The cover is fitted with angle bars ma t the front part and with angle bars /l at the rear part thereof, the latter having a hole -h for the pivot of the swingin cover 2' to pass through.

The beams -care adjustably arranged on the cover -2' and to this effect vertical openings cZ* are formed at both ends, so that by means of suitable bolts gl and angle bars -g bolted to the cover the position of said beams c may be verticall regulated. The beams c carry the bearings -f adapted to hold and guide the concave brushes --c and the circular brushes b The position of the bearings on beams c may be regulated by means of horizontal openings and bolts not shown in the drawings; and at the same time one face of the beams c and one face of the bearings are finely tggthech in order that said bear Q horizontal part and closed at the lower end tended toguide the concave brushes; the

upper end of said grooves is open and the lower end is closed, so that when raising the beams c the brushes are carried along therewith.

The inclination of the grooves must be constructed to facilitate the adaptation of the concave surface of the brushes to the convex surface of the rollers At each end of the fluted rollers a is 1 arranged a brushl1older, composed of a support -pto which is fixed a metal plate ncarrying the concave brushes c The plate 4i is bent downward in U shape and the lower part of it carries two springs 00 adapted to hold the revolving brushes a The lower end of the supports -p is formed with a} pin -g9 which rests in the concave bearing of the head -grigidly connected to the upper end of a socket s the lower end of the socket -s is pivotally connected,v by means of a pin t passing through a hole -s to one end of the angular lever u carrying a weight u at its other end. The socket s is formed at its upper end with a vertical slot, while the head q is formed also with a horizontal slot, in order to connect both parts to one another and secure them together in proper position, by means of a bolt 1. The contact surfaces of head and socket s are longitudinall y toothed to facilitate the adjustment of the head; The socket s Fig. 2, presents an: enlarged or thicker part s having lateral teeth sand passing through a suitable opening in the table 1: this opening is formed with two portions, one which corresponds to the part s' to guide it when the mechanism is at work, and another port-ion which corresponds to the size of 8 into which the socket is thrown when thebrush 'holder must be taken out, in, which case the socket is retained by the tooth formed by s lateral teetll- -"Wh'eh the brush-holders aretake n out there is no, risk of the heads g rubbing against the drawing rollers.

Lever uoscillates upon the support -oto be fixed on the table by means of bolts o I claim:

1. In a device of the character described,

By means of the the combination of a series of rollers, a concave brush and a cylindrical revolving brush for each roller, and means for supporting said brushes, including a cover, parallel beams with vertical holes in their ends secured to said cover, said beams being provided with right-angled holes for the reception of the bearings of the circular brushes and with inclined holes for the reception of the bearings of the concave brushes, substantially as described.

2. In a device of the character described, the combination of a plurality of rollers, a concave brush and a cylindrical revolving brush for each roller,two parallel beams provided with suitable hearings to hold said brushes, a cover connected to said beams and covering the whole mechanism, said cover being provided with a cut away portion and a top plate normally closing said cut away portion, one end of which is bent downwardly, i

forming a pocket to receive the fine waste carried along between the rollers and the cover, substantially as described.

3. In a device of the character described, the combination of a series of rollers, a concave brush and a cylindrical revolving brush for each roller, a pivotally mounted support in which said concave brushes are mounted, springs supporting the cylindrical brushes in contact with said rollers, a socket in which the lower end of said support rests, an arm extending downwardly from said socket, and a weighted lever pivotally connected to the lower end of said arm, substantially as described.

In testimony whereof I allix my signature, in presence of two witnesses.

ALBERTO PLANAS ESCUBOS.

Witnesses (V /ONSTANTINO HnNn. Cimio, STANLEY A. I-IARRIs.

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