US133832A

US133832A - Improvement in doffer-strippers for carding-machines

Info

Publication number: US133832A
Authority: US
Publication date: 1872-12-10
Anticipated expiration: 1889-12-10

Description

A. M. BUMSTUCK.

Buffer Strippers for Carding-Machines.

I No. 133,832. Patented Dec.10,1872.

mifmesses fig. 3 lwvz-a ww l v .w/ 4140' I AM FHOTULITHOGMPHIG C(ZM X QSBORNES PHOCESSJ UNITED STATES PATENT CFFIGE.

ALBERT 'M. OOMSTOCK, OF HOLDEN, MASSACHUSETTS.

IMPROV EMENT IN DOFFER-STRI PPERS FOR CARDlNG-MACHINES.

Specification forming part of Letters Patent No. 133,832, dated December 10, 1872.

exact description of the same, reference being had to the accompanying drawing forming a part of this specification, in which- Figure 1 represents a plan View of such portions of a carding-machine as are necessary to illustrate my improvement; Fig. 2 represents a vertical section of the same on line A B, Fig. 1; and Fig. 3 represents a perspective view of portion of my improved stripper.

To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe it more in detail.

My invention pertains to an improvement in the construction and arrangement of a strip per, with a view of enabling it to support or carry the stock or roving during its passage from the dofter to the condensin g-roll's,- and to deliver the stock to said rolls without liability of its being wound up on the blades.

In the drawing, A represents the frame; B,

the doffer; G, D, and E, the condensing or rub rolls; and F, the stripper. The usual construction of dofi'er and condensing-rolls is shown, the former being provided with rings of card- -clothing a, each of which collects sufficient wool to form a stand of roving, and the upper roll D having a laterally-reciprocating motion to impart the desired density and uniformity to the roving. The stripper consists of a series of steel or other metal blades, b, rigidly secured to a'shaft, f, at suitable intervals of space. Each blade is parallel to the shaft,

projectsradially outward, and has a serrated or toothed edge,c. This edge .is beveled on the side which, in practical operation, first comes into contact with the wool on the dofi'er.

The direction of rotation of the several rollers is indicated by the'arrows.

The stripper takes the wool from the rings a of the dotfer, and, by reason of the serrations or teeth of its blades, as wellas its local relation to the doffer and condensing-rolls, supports the strands during their passage to said rolls, thus preventing the stoppage of the machine in consequence of the parting or falling of the strands, as frequently results in the use of other strippers, particularly if short or bad stock be used.

The practical or comparative value of this mode of supporting the stock is, however, directly modified by the necessity of providing for the same being taken off the toothedblades without resistance or obstruction sufficient to render it liable to be wound up on the stripper. To facilitate and insure such delivery and result is the function of the beveled edge of the blades. Thus the serrating andbevel ing of the blades bear a necessary functional relation to each other, modified to some extent by the arrangement of the stripper with reference to the dofi'er and condensing-rolls.

Diselaiming fixed or serrated blades, per so or broadly,

I claim as novel and of my invention- The stripper F, composed of serrated or toothed blades 1) c rigidly secured to a shaft, f, and beveled on one side, as specified, when arranged with the doffer B and condensing or rub. rolls 0 D E, "as shown and described, whereby it is adapted to support and deliver the stock, as set forth.

- ALBERT M. OOMSTOCK.

Witnesses THos. 11.. DODGE, A. E. PEIRCE.