US435174A

US435174A - Web-holder for knitting-machines

Info

Publication number: US435174A
Authority: US
Publication date: 1890-08-26
Anticipated expiration: 1907-08-26

Description

(No Model.)

G. H. GILBERT. WEB HOLDER FOR KNITTING MACHINES.

No. 435,174. Patented Aug. 26, 1890.

w WWW? UNITED? STATES I PATENT OFFICE.

GEORGE H. GILBERT, OF PHILADELPHIA, PENNSYLVANIA.

WEB-HOLDER FOR KNITTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 435,174, dated August 26, 1890.

Application filed April 24, 1890.

To all whom it may concern.-

Be it known that I, GEORGE H. GILBERT, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in NVeb-Holders for Knitting-Machines, of which the following is a specification.

My invention relates especially to webholders for knitting-machines of that class in which reciprocating or to and fro knitting is resorted to in order to form flat-fashioned webs or to narrow and widen a web for the purpose of forming a seamless heel or toe pocket upon a knitted tube.

The object of my invention is so to construct the web-holders that they will prevent the knitting-thread from passing to the frontof the needles at the ends of the acting or fashioning set until after it has been wrapped around said needles, and will thus prevent the'droppin g of stitches by said needles. This object I attain in the manner hereinafter set forth, reference being bad to the accompanying drawings, in which- Figures 1 to are diagrams illustrating my improved web-holder. Figs. 5 and 6 are diagrams illustrating the objection to the form of web-holder ordinarily employed, and Figs. 7 and 8 are views illustrating modified forms of my improved web-holder.

Knitting machines, especially those intended for the production of seamless heel and toe pockets upon knitted tubes, are now commonly provided with web-holding plates arranged around the top of the needle cylinder or carrier A to prevent the rise of the work on or with the needles, each of these webholders usually having a hook or projection afor bearing upon the upper edge of the knitted web to prevent the rise of the same and above said hook an outwardly curved or inclined face I), over which the knitting-th read will slip downward as the needle draws the stitch. The objection to this ordinary form of web-holder, however, is that the knittingthread 00, leading to the thread-guide d from the end needle of the set of needles in action during the knitting of a course in the fashioning of the fabric, has a tendency to rise 011 the outwardly curvedor inclined portion 5 of the web-holder to such an extent as to be Serial No. 349,252. (No model.)

carried to the front of the next needle to be brought into action, as shown in Figs. 5 and 6, for instance, so that on the reverse movement of the thread-guide no loop will be formed around this needle when it is raised into acting position, and said needle will consequently miss its stitch, and thus cause a hole in the work.'- In order to overcome this objection,I interrupt the continuity of the curved or inclined upper face of the webholder, preferably by providing said webholder with a vertical or substantially vertical face f between the upper and lower outwardly curved or inclined faces I) Z), so that while the knitting-thread will slip down over the webholder with the same facility as over an ordinary Web-holder the rise of the knitting thread on the upper-face of the web holder will be arrested by this intermediate straight portionf, as shown in Figs. 1 and 2, and as the straight portions of the web-holders are in line with the backs of the needles it follows that the new needle in rising must pass in front of the knitting-thread, as shown in Figs. 3 and 4. Hence on the back movement of the threadguide a loop of the knittingthread is necessarily formed around the new needle, and the missing of a stitch thereby eifectually prevented.

The retaining portion f of the web-holder may be undercut instead of straight, as shown in Fig. 7; or the retainer may consist of a supplementary hook f formed above the workretaining hook a, as in Fig. 8, for instance.

' Having thusdescribed'my invention, I claim and desire to secure by Letters Patent- 1. The within-described web-holder for lmitting-machines, the same having a workretaiuing hook and a thread-retainin g portion above the same, whereby the upward and outward movement of the knitting-thread on the web-holder is prevented, substantially as specified.

2. The within-described web-holder for knitting-machines, the same having a workretaining hook and above the same an outwardly-inclined portion and a retaining portion substantially verticah'as specified.

3. The combination of the needle-carrier and its needles with web-holders havingworkretaining hooks and above the same threadretaining portions, whereby the knittingretainers and extending inwardly to the backs thread is prevented from slipping to the front of the needles, substantially as specified.

of those needles Which are thrown into action In testimony whereof I have signed my name during the fashioning, substantially as specito this specification in the presence of two 5 fied. subscribing Witnesses.

4. The combination of the needle-carrier and its needles with Web-holders having Work- GEORGE H. GILBERT. retaining hooks and above the some out- Witnesses: wardly-inclined portions and substantially EUGENE ELTERICH,

[0 vertical portions, the latter serving as thread- HARRY SMITH.