US43170A

US43170A - Improvement in knitting-machines

Info

Publication number: US43170A
Authority: US
Publication date: 1864-06-21
Anticipated expiration: 1881-06-21

Description

UNITED STATES PATENT OFFICE@ VALTER AIKEN, OF FRANKLIN, NEW HAMPSHIRE.

IMPROVEMENT IN KNITTING-MACHINES.

Specili( ation forming part of Letters Pate-nt- No. 13, [70, dated June 21, 1864.

To all whom it may concern:

Be it known that I, WAL'iER ATKEN, a residentl of Franklin, in the county of Merrimac and State of New Hampshire, have invented a new and useful Improvement in Machines forKnitting; and I do'hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of Which- Y Figure l is a 'vertical section of a knittingmachine needle-plate, as provided with myinvention. Fig. Zisa top view of aportionof such needle-plate. Fig. 3 represents the needleplate in section, and as provided with a needle if the kind which is applicable to it..

In the drawings, A denotes the needleeplate, which is a circular annulus provided with radial grooves made in its upper surface, in (ach of which a needle is to be placed and hrld so-as to be capable ot' being lnofed en dwise or longitudinally, as circumstances may require, the upper surt'ace of the shank of' the needle beingflush, or about so, with the upper surface of the plate.

The needle to operate in the plate as furnished with my improvement is one provided with two projections extending in opposite dil rections from its shank, the upper of the said projections entering a cam-groove of a rotary plate. The lower of the projections is for steadying the needle or preventing it t'roln and to operate with a needlewhen made turningwithin its groove while the needle may be in use. In order that the saidlower projection may operate to the requisite advantage, the needle-groove a of the needle-plate is constructed with a depression, a', extending below the bottom of the groove or that part b of it on which the shank otl the needle rests. Generally speaking, the. depth of the depression a should correspond with the distance to which the lower projection of the needle extends beyond the shank.

As the needle has to play loosely in its guidinggroove, it is liable, especially should the groove become worn alittle Wider than the needle, to turn in its groove. this` is the otlicc of the depression a', acting in conjunction with the lower projection of the needle, such depression being ot' a length sufcient to allow ot' the necessary movements of the needle.

I claimrlhe needle-plate as made with the depres- Asion al, arranged below its needlegroove'a, with a. projection to extend downward from its shank, as set forth.

WALTER AIKEN.

Witnesses:

GEORGE L. SANBOEN, E. G. WALLACE.

To prevent