Improvements in Warp Knitting Machines used for Knitting Warp Fabrics.
Year: 1890

page_text: Date of Application, 6th May, 1890
Complete Specification Left, 6th Feb., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Warp Knitting Machines used for Knitting
Warp Fabrics.
We, THOMAS KIDDIER, JAMES KIDDIER and JOHN WILLIAM KIDdier,
Machinists, all of the firm known as the Hosiery Machine Building Company of
Bell Street, Arkwright Street in the Town and County of the Town of Nottingham,
do hereby declare the nature of this invention to be as follows:-
Our invention relates to that class of knitting machinery known as warp knitting
machines, in which moveable needle bars are employed. It is desirable that the
needles which are mounted on the needle bars should be moved backwards and
forwards through the sinkers with reliable case and smoothness of motion. The
various methods usually adopted, do not ensure this most desirable result, and a
diminution of speed in the manufacture of fabric is the necessary consequence.
To attain a greater speed in the movements of parts in warp machines combined
with regularity case and smoothness of motion, we form the standards of the
machine with elevated bearings above the level of the needle bar to carry a shaft
which has a series of lever arms descending from it. On these levers are affixed
the needle bars and they are swung freely backwards and forwards by rods which
may be attached either to the needle bars or to the levers as desired and on which
trucks are affixed and are operated upon by cams affixed on the ordinary cam shaft
at the back of the warp machine.
Dated this 5th day of May 1890
THOMAS KIDDIER.
JAMES KIDDIER.
JOHN WM. KIDDIER.
COMPLETE SPECIFICATION.
Improvements in Warp Knitting Machines used for Knitting
Warp Fabrics.
We, THOMAS KIDDIER, JAMES KIDDIER, and JOHN WILLIAM KIDDIER,
Machinists, all of the firm known as the Hosiery Machine Building Company, of
Bell Street, Arkwright Street, in the Town and County of the Town 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 :-
Our invention relates to that class of knitting machinery known as warp knitting
machines, in which moveable needle bars are employed. It is desirable that the
needles which are mounted on the needle bars should be moved backwards and
forwards through the sinkers with reliable case and smoothness of motion. The
various methods usually adopted, do not ensure this most desirable result, and a
diminution of speed in the manufacture of fabric is the necessary consequence.
To attain a greater speed in the movements of parts in warp machines combined
with regularity case and smoothness of motion, we form the standards of the machine
with elevated bearings above the level of the needle bar to carry a shaft which has
a series of lever arms descending from it. On these levers are affixed the needle
bars and they are swung freely backwards and forwards by rods which may be
attached either to the needle bars or to the levers as desired and on which trucks
are affixed and are operated upon by cams affixed on the ordinary cam shaft at
the back of the warp machine.

page_text: Figure 1 is a vertical section of some of the parts of a warp knitting machine
constructed as above described.
Figure 2 is a front view of part of the needle bar and of the shaft. from which it
is suspended. A is the needle har fixed to the lower end of arms B which at their
upper ends are atfixed to a shaft carried in bearings by the standards D which
form part of the fixed frame of the machine and rise up above the level of the
needle bar.
The lower end of these arms or of some of them are operated upon by cams fixed
on the ordinary cam shaft of the warp machine giving a backward and forward
movement to the needle bar at the required times.
As shown in the drawing the arms 13 are secured to the shaft C' in such a manner
that the distance of the needle bar from the shaft can readily be adjusted, or the
shaft C may be fixed to the standards D and the arms B allowed to oscillate on the
shaft ('.
The other parts of the machine may be of any ordinary construction and the
unner in which they operate is well understood so that it is unnecessary to give
here any description of it.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what we
claim is :-
Carrying the needle bar in warp knitting nmchines by arms which descend
vertically from a shaft mounted in bearings on fixed standards, above the level of
the needle bar, and to which a backward and forward movement is imparted,
substantially as hereinbefore described and illustrated in the drawing annexed.
Dotad this th day of Babu 1901
CARPMAEL & Co.,
Agents for the Applicants.