Improvements in and connected with Straight-bar Knitting Machines.
Year: 1897

page_text: Date of Application, 4th Nov., 1897
Complete Specification Left, 4th Aug., 1898-Accepted, 4th Nov.,
1898
[Communicated from abroad by LA SOCIÉTÉ VVE PERRAULT, GREAUD ET COM-
PAGNIE, of 19, Rue Cambon, Paris, in the French Republic, Manufacturers.]
Improvements in and connected with Straight-bar Knitting
Machines.
I, WILLIAM GEORGE HEYS, of 70, Market Street, Manchester, in the County
of Lancaster, Chartered Patent Agent, do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to straight bar knitting machines in which two inclined
ranges of needles are employed which meet on the line of work, and it has been
designed to facilitate the manufacture thereby of stockings and half-hose.
According to this invention, supplementary needle bars with needles working
horizontally in the line of work are employed, one bar on each side of the centre
line. The supplementary needles work in horizontal grooves formed in the two
opposed parallel needle-bars and they are operated by the same mechanism or
devices as operate the inclined needles, or otherwise. The horizontal needles may
have any suitable form, but it is preferred that they should be recurved in such
a manner that those needles have a supplementary limb parallel with and above
the shank of the needle, which limb, acting as a spring, binds against the cover
plate which is arranged above the horizontal needle races in the back horizontal
needle bar.
The heel or projection by which the horizontal needle is moved may be formed
upon the hereinbefore described supplementary limb.
W. E. HEYS & SON,
Agents for the Applicant.
Improvements in and connected with Straight-bar Knitting
Machines.
I, WILLIAM GEORGE HEYS, of 70, Market Street, Manchester, in the County
of Lancasier, Chartered Patent Agent, do hereby declare the nature of this inven-
tion, and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
This invention relates to straight bar knitting machines in which two inclined
ranges of needles are employed which meet on the line of work, and it has been
designed to facilitate the manufacture thereby of stockings and half hose.
According to this invention supplementary needle bars are employed with
needles working horizontally in the line of work, one bar being employed on each
side of the centre line. The supplementary needles work in horizontal grooves
rn

page_text: formed in the two opposed parallel needle bars and they may be operated in a
similar manner to and by similar devices to those employed for operating the
inclined needles.
Parts of a knitting machine constructed to embody these improvements are
illustrated in the accompanying drawings.
Figures 1, 2, and 3 represent plans of the horizontal supplementary needle
bars and the device for operating the needles.
A and A¹ indicate the opposite parallel needle bars for the reception of the
supplementary needles n. B is a carriage or movable cam plate, reciprocated in
any suitable manner and formed on its lower side with a groove b to engage with
the heels h of the needles. As shown in Figure 1, with the cam plate moving
in the direction of the arrow, the needles are first moved into the bar A', as shown
more fully in Figure 4 which is a section taken across the bars, and are then
moved across into the bar A, being pushed well home by the inclined surface b
which follows the groove b.
In Figure 2 the cam plate is represented as having arrived at the end of its
stroke. I
In Figure 3 the plate is shown as moving in the opposite direction and during
this movement it does not operate the needles. G is a movable cam attached to
the plate I and travelling with the cam plate B. When the cam G is set in
the position indicated in Figures 1, 2, and 3, it comes against the heels h of the
needles and moves them to positions in which the heels come opposite to the
mouth of the groove b, so that on the return stroke of the cam plate in the direc-
tion of the arrow shewn in Figure 1. the needles are again operated. The cam G
may be set in the position shewn in Figure 5 when it is desired that the cam plate
shall reciprocate without moving the needles.
His a spring which is secured to the plate I and moves therewith and with the
carriage B, and is arranged to close the latches of the needles during their with-
drawal from the needle bed A, at the moment when each latch comes under the
spring, for the purpose of preventing slipped stitches.
As before explained. Figure 4 illustrates a cross section of the horizontal needle
bars and indicates their relative positions to the inclined straight bars K K¹.
The form of needle preferably employed is also shewn clearly in this figure.
The needles consist of a shank or limb upon which the hook is formed, and a
returned part in which the heel is formed. This returned part acts as a spring to
retain the needles in the bar A which is provided with a cover plate a.
Having now particularly described and ascertained the nature of my said
invention, as communicated to me by my foreign correspondents, I declare that
what I claim is:-
1. In a straight bar knitting machine the combination with the inclined needle
bars of two horizontal parallel needle bars and a range of supplementary needles,
constructed and arranged substantially as herein before described and as illus-
trated by the accompanying drawings.
2. A knitting machine having two inclined needle bars and ranges of needles,
and supplementary horizontal bars and a range of horizontal needles, all con-
structed and arranged substantially as herein before described and as illustrated
by the accompanying drawings.
Dated thin 2nd do.. of
A T 1000