Improvements in Straight Bar Knitting Machines and Radial Work. Produced thereon.
Year: 1893

page_text: Date of Application, 19th Apr., 1893
Complete Specification Left, 19th Jan., 1894-Accepted, 3rd Mar.; 1894
PROVISIONAL SPECIFICATION.
Improvements in Straight Bar Knitting Machines and Radial Work.
Produced thereon.
We, JAMES HENRY WOODWARD and FREDERICK SHAW both of Lee Works,
Nottingham, Hosiery Machinists, do hereby declare the nature of this invention
to be as follows:-
When radial work is produced upon straight bar knitting machines a number of
small holes are left in the fabric wherever the thread carrier in place of completing
its traverse over the whole row of needles upon which work is being. made stops
short of making a complete traverse-one hole shewing itself at every point where
the thread carrier stops.
According to our invention we effect the filling up of these small holes by causing
the thread at the end of the traverse to be wrapped around one or more of the next
succeeding needles.
:
•
In what is known as a "cotton" machine this may be effected by causing a raised
portion on the drawing cam to move the thread carrier outwards one or more needles.
while the needle bar is down and by means of the catch bar cam giving to the catch
bar such a movement that when the needle bar rises the thread gets wrapped round
the one or more needles.*
Dated this 18th dow of Anril 1893
COMPLETE SPECIFICATION.
Improvements in Straight Bar Knitting Machines and Radial Work
Produced thereon.
We, JAMES HENRY WOODWARD, and FREDERICK SHAW, both of Lee Works,
Nottingham, Hosiery Machinists, 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 :-
When radial work is produced upon straight bar knitting machines a number of
small holes are left in the fabric wherever the thread carrier in place of completing
its traverse over the whole row of needles upon which work is being made stops
short of making a complete traverse-one hole shewing itself at every point where
the thread carrier stops.
According to our invention we effect the filling up of these small holes by causing
the thread at the end of the traverse to be wrapped around one or more of the next
succeeding needles.
In what is known.as a "coiton" machine this may be effected by causing a raised
portion on the drawing cam to move the thread carrier outwards one or more
needles while the needle bar is down and by means of the catch bar cam giving to
the catch bar such a movement that when the needle barrises the thread gets
wrapped round the one or more needles.."
1.
In a similar manner thread may be wrapped round one needle at the end of any
course of work when the next succeeding course is to be a longer one.

page_text: In the drawings annexed we have shewn-the mechanism we prefer to employ for
causing the thread to be wrapped around a needle or needles at the end of a course
as above described.
Figure 1 is a diagram perspective view shewing the position of the thread carrier
or conductor at the end of a course of work.
Figure 2 is a similar view shewing the thread carrier or conductor when it has
had a slightly increased traverse given to it after the needles have gone down in
order to wrap the thread around a needle.
Figure 3 is a-front elevation of the thread carrier bar and the stop mechanism
by which the length of its traverse in one direction is controlled.
Figure 4 shews the draw bar cam.
His the thread carrier or conductor-K the knitting thread-C is the selvage.
needle of the course of work which has just been måde -D the needle next
adjacent A is the selvage sinker of the course just made and B the sinker next
adjacent.
.:
-S-is the carrier rod to which motion is communicated in the ordinary way. L is
a stop by which the length of traverse given to the thread carrier. is controlled.
The stem of this stop has a screw thread cut around it which screws through a
projection M on the ordinary worm slide R. This worm slide in addition to
carrying the stop Lis also used for controlling the position of one of the sliding
pressers used for producing radial knitting as is well understood. N is a lever arm
fixed upon the stem of the stop L. O is a connecting rod connecting the end of
the arm with a lever acted on by a cam on the cam shaft. After the needle bar
has gone down the cam gives an upward movement to the rod O and so causes
a partial turn to be given to the screw stop L in a direction to draw the stop away
from the end of the thread carrier rod S and at the same time the draw bar has a
further movement given to it by the raised portion F on the drawing cam so as to
move the thread carrier rod Sendwise and again bring it against the stop.
In this way the thread, carrier is shifted from the position shewn in Figure 1
to that shewn in Figure 2. The sinkers are now moved forward a short distance
by the catch bar and the needles rise. As the sinkers move forward the thread is
caught as shewn in Figure 5 by the point B* of the sinker B and the thread is
thereby deflected and held in such a position that when the needle bar rises the
needle D comes up in rear of the thread as indicated in the diagram Figure 6
so that when the thread carrier makes its next traverse the thread is wrapped
around the needle D.
If desired the thread in place of being thus wrapped around one needle only
might be similarly wrapped around a greater number of needles.
In
Similarly the thread may at the end. of any course of work be wrapped around
the next succeeding needle whenever the next course is to be a longer one.
this way knitted fabrics may be widened as desired and a fairly good selvage made
without using any point mechanism for shifting loops from some needles to others.
Having now particularly described and ascertained the nature of our said in ven-
tion and in what-manner the same is to be performed we declare that what we
claim is :-
:
1. Radial knitted work in which the small holes heretofore left in the work at
the end of each course are filled up by wrapping the thread after the end of a
course around one or more of the next succeeding needles beyond the end of the
course.
:
2. The construction of straight bar knitting machines adapted for producing
what is known as radial knitted work in such a manner that at the end of any
desired course the thread is caused to be wrapped around one or more of the next
succeeding needles beyond the end of the course.
3. The arrangement of mechanism substantially as hereinbefore described and
illustrated in the drawings annexed whereby in a straight bar knitting machine
adapted for producing what is known as "radial knitted work the thread may after

page_text: the end of any desired course be wrapped around one or more of the next succeeding
needles.
4. The moving of the thread-conductor at such a time and in such a manner as
to cause the thread to be wrapped round the succeeding needle or needles beyond
5 the selvage needle of the last course knitted in any part of the fabric.
Dated this 17th day of January 1894.
J. H. WOODWARD.
FREDERICK SHAW.