Improvements in Circular Knitting Machines.
Year: 1895

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c., Act, 1883), as required by.
the decision of the Comptroller General of the 20th day of November 1896.
Date of Application, 8th Feb., 1895
Complete Specification Left, 8th Nov., 1895-Accepted, 1st Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Circular Knitting Machines.
We, GEORGE BLACKBURN, Engineer and SAMUEL JAMSON, Machinist both
of Atlas Works Kirke White Street in the Borough of Nottingham, do hereby
declare the nature of this invention to be as follows:-
This invention relates to circular rib or like machines in which the needle
cylinder rotates within a fixed cam cylinder provided with a cam race to operate
the needles which latter take the yarn from one or more stationary feeders as they
travel round with the cylinder.
Heretofore in machines of this description the needles have been secured to and
operated by jacks carried in tricks or recesses in the cylinder, each jack being
provided with a neb or projection engaging in the cam race.
In carrying out this invention the needle cylinder is preferably constructed of
steel, hardened and tempered, and formed with tricks or recesses adapted to receive
needles formed in one piece with a cranked part or projection to engage with
the cam race which is modified to suit the cranked needles.
With this arrangement not only is the use of jacks obviated, but the machine
runs much lighter and may therefore be driven at a higher speed with less risk of
breakage and a consequent increase in the amount of fabric produced; the use in
rib machines of dummy jacks to fill up the recesses in the cylinder, where needles
are not required is also done away with.
1005
BOULT & WADE,
Agents for the Applicants.
We, GEORGE BLACKBURN, Engineer, and SAMUEL JAMSON, Machinist, both
of Atlas Works, Kirke White Street, in the Borough of Nottingham, do hereby
declare the nature of this invention 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 circular rib or like machines, in which the needle

page_text: cylinder rotates within a fixed cam cylinder provided with a cam race to operate
the needles, which latter take the yarn from one or more stationery feeders as they
travel round with the cylinder.
It will be best understood by reference to the accompanying drawings in
which,
Fig. 1 is a vertical section of a circular knitting machine constructed according
to our invention.
Fig. 2 is a view of a frame needle.
Fig. 2 is drawn full size, while Fig. 1 is drawn to a smaller scale.
Like letters indicate like parts throughout the drawings.
In machines of this description the frame needles have heretofore been secured
to and operated by jacks carried in tricks or recesses in the needle cylinder, each
jack being provided with a neb or projection engaging in the cam race. The
rib needles have also been secured to and operated by pivotted jacks.
In carrying out this invention we employ frame needles A made in a well-
known manner in one piece, with a cranked or bent part A¹ forming a neb or
projection to engage with the cam race C' of the stationery cam ring C.
The needle cylinder B is formed with tricks or recesses B' adapted to receive
the cranked needles A, and it is preferably formed of steel, hardened and
tempered, in order that the projecting portions which alternate with the recesses,
may have the strength and stiffness required, when cranked needles are used.
The rib needle jacks engage with the annular hanger E on the radially gated
wheel F, and are operated by an inner clearing cam G and an external depressing
cam (not shown) both of ordinary construction.
With this arrangement not only is the use of jacks obviated, but the machine
runs much lighter and may therefore be driven at a higher speed with less risk
of breakage and a consequent increase in the amount of fabric produced as
compared with other machines; the use in rib machines of dummy jacks to
fill up the recesses in the cylinder where needles are not required is also done
away with.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :
1. In a circular knitting machine the combination with a rotating needle cylinder
and stationery cam ring of a cranked frame needle such as A A¹ formed
in one piece substantially as described and illustrated in the accompanying
drawings.
Dated thin 7th dan of N
1008