Improvements in Rotary Knitting Machines.
Year: 1889

page_text: Date of Application, 9th Nov., 1889
Complete Specification Left, 8th Aug., 1890-Accepted, 13th Sept., 1890
PROVISIONAL. SPECIFICATION.
Improvements in Rotary Knitting Machines.
We, THOMAS KIDDIER, JAMES KIDDIER and JOHN WILLIAM KIDDIER all of Bell
Street Works, Arkwright Street in the Town and County of the Town of Nottingham,
Hosiery Machinists, do hereby declare the nature of this invention to be as
follows:-
In rotary knitting machines for producing rib fabrics difficulty has heretofore been
experienced in widening the fabric without leaving a small hole in the fabric at each
point where loops have been shifted a distance sidewise from some of the frame
necdles on to others thereby leaving one of the needles without any loop upon it.
When widening plain fabrics cach hole which would in this way be left in the
fabric is filled in by causing a filling up point to enter the loop of fabric last cast
off from the neeile next to those which are to be shitted sidewise and to be then
shifted sidewise together with the other points so as to extend this loop and bring it
into position for the needle which has been left without any loop upon it to enter and
in this way the reedle gets supplied with a loop. When working in this way the
filling up point has been caused to enter the loop which it is to extend at the saine
time that the other points (the cover points) have been made to enter loops on the
needles.
When making a rib fabric this cannot conveniently be done because the machine
needles come in the way.
We effect the object in the following manner :-For shifting the loops from some
needles on to others we uso point mechanism such as is described in the Specification
of a Patent No. 2,200 in the year 1879.
The filling up point required to be used when widening we carry along side of the
points used for shifting loops on the frame needles. When widening we put the
point mechanism for shifting loops on the machine needles entirely out of action.
During the time that the points which work with the frame needles are taking
loops from these needles the filling up points are held up out of action.
When the points have taken loops and the machine and frame needles have been
brought into a position ready for the points to be shifted sidewise (in which position
the extremities of the frame and machine needles are only at a slight distance apart
and the loops still remaining on the needles are at the extrainities of both needles) the
filling up point is caused to descend into the loop last cast off from the frame needle
next to those from which loops have been taken by the cover points-this loop
being then at the back of the frame needle. Then as the points are all shifted side-
wise we either cause this point to bo rocked so as to bring it from the back to in
front of the needles or we effect the same object by rocking the needle bar.
loop is in this way brought into position for the vacant frame needle to enter when
the needies next rise to take the loops from the points.
The
The stem of the filling up point has as heretofore to be made capable of being
slidden endwise through a projection on the side of the brass or holder which carries
the cover points. We make a crank bend in the stem near its lower end so that its
upper end may pass clear of the rods by which the brasses or holders are carried.
If the filling up point is to be capable of being rocked as well as slidden up and
down we either make the stem which carries it to pass up through a tapering hole
in the projection on the brass or to pass up through a parallel hole in a block which
is pivotted to the brass and we cause the stem to be pressed by a spring up to a
guide surface on the brass which guide surface is so shaped as to give the

page_text: requisite rocking motion to the point at the same time that the point is moved
downwards.
Delhi th Josef Nanamba 1921
THOMAS KIDDIER.
JAMES KIDDIER.
JOHN WM. KIDDIER.
COMPLETE SPECIFICATION.
Improvements in Rotary Knitting Machines.
We, THOMAS KIDDIER, JAMES KIDDIER and JOHN WILLIAM KIDDIER all of Bell
Street Works Arkwright Street in the Town and County of the Town of Nottingham,
Hosiery Machinists, lo 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 :-
In rotary knitting machines for producing rib fabrics difficulty has heretofore
been experienced in widening the fabric without leaving a small hole in the fabric
at each point where loops have been shifted a distance sidewise from some of the
frame needles on to others thereby leaving one of the needles without any loop
upon it.
When widening plain fabrics each hole which would in this way he left in the
fabric is filled in by causing a filling up point to enter the loop of fabric last cast off
from the needle next to those which are to be shifted sidewise and to be then shifted
sidewise together with the other points so as to extend this loop and bring it into
position for the needle which has been left without any loop upon it to enter and in
this way the needle gets supplied with a loop. When working in this way the filling
up point has been caused to enter the loop which it is to extend at the same time
that the other points (the cover points) have been made to enter loops on the needles.
When making a rib fabric this cannot conveniently be done because the machine
needles come in the way.
We effect the object in the following manner:-For shifting the loops from some
needles on to others wo uso point mechanism such as is described in the Specification
of a Patent No. 2,200 in the year 1879.
The filling up point required to be used when widening we carry along side of
the points used for shifting loops on the frame needles. When widening we put
the point mechanism for shifting loops on the machine needles entirely out of action.
During the time that the points which work with the frame needles are taking
loops from these needles the filling up points are held up out of action.
When the points have taken loops and the frame needles have been brought into a
position ready for the points to be shifted sidewise (in which position the extremities
of the frame and machine needles are only at a slight distance apart and the loops
still remaining on the needles are at the extremities of both needles) the filling up
point is caused to descond into the loop last cast off from the frame needle next to
those from which loops have been taken by the cover points-this loop being then
at the back of the frame needle. Then as the points are all shifted sidewise we either
cause this point to be rocked so as to bring it from the back to in front of the
needles or we effect the same object by rocking the needle bar. The loop is in this
way brought into position for the vacant frame needle to enter when the needles next
rise to take the loops from the points.
The stem of the filling up point has as heretofore to be made capable of being
slidden endwise through a projection on the side of the brass or holder which carries
the cover points. We make a crank bend in the siem near its lower end so that its
upper end may pass clear of the rods by which the brasses or holders are carried.
If the filling up point is to be capable of being rocked as well as slidden up and
down we either make the stem which carries it to pass up through a tapering hole
in the projection on the brass or to pass up through a parallel hole in a block which

page_text: is pivotted to the brass and we cause the stem to be pressed by a spring up to a
guide surface on the brass which guide surface is so shaped as to give the
requisite rocking motion to the point at the same time that the point is moved
downwards.
In order that our invention may be the better understood we will by the aid of the
accompanying drawings proceed to describe means pursued by us in carrying the
same into effect.
In each figure the same letters are employed to indicate corresponding parts.
In the drawings we have shewn our improvements applied to a rotary knitting
machine such as is described in the Specification of a Patent No. 2,200 in the
year 1879 but they may be applied to other constructions of rotary knitting machines
adapted for producing rib work.
Figures 1 and 2 are vertical cross sections of parts of rotary knitting machines
with our improvements applied to them. In the construction shewn at Figure 1 a
rocking motion is given to the filling up points to bring them at the proper time
from front to back, or from back to front of the needles.
In the construction shewn at Figure 2 this result is effected by rocking tho
needle bar.
Figure 3 is a front view of some of the parts shewn in Figure 2.
Figures 4, 5, 6 and 7 show various ways in which the stems carrying the filling up
points may be formed.
Figures 8, and 10 are diagram views illustrating the action of the filling up
points.
In these figures Z are the frame needles and Y the machine needles-a is a filling
up point affixed to a stom or holder a'-this stem is capable of being slidden upwards
or downwards between guides formed at one or other side of the brasses b by
which the ordinary covoring points used for shifting loops from some needles to
others are carried.
The upper end of the stem or holder is coupled to a horizontal rod c which is
carried by arms a¹ from a shaft d to which a rotary rocking motion is given when the
points are to be raised and lowered.
When the needle bar is rocked then the shaft d may as shewn at Figure 2 bo
carried in bearings by the arms by which the ordinary bars used for carrying the
narrowing or covering points are carried.
When the filling up points a are also to have a rocking motion given to them
as in Figure 1 then the shaft d may be carried by arms e from a shaft e so that by
rocking this latter shaft the filling up points may be moved from back to front or
vice versa.
upon
The requisite rocking motion is shewn to be given to the shaft e by an arm h
it being coupled by a rod i with one arm of a crank lever j the other arm of which
is coupled by a rod to an armn of a lover & the other arm of which carries a truck
that is acted on by a cam on the cam shaft m of the machine.
The raising and lowering of the filling up points at the proper times is effected by
rocking the shaft d by a similar arrangement of connecting rods and lovers operated
by a.cam on tho cam shaft.
When the filling up points are not required to be in action the trucks on the levers
which operate them and which rest on cams in the cam shafts are shifted off the
cams and into a groove formed around a wheel on the shaft as shewn at Figures 1
and 3.
In place of rocking the filling up points by a shaft e provided for the purpose in
addition to the shaft d provided for raising and lowering them-the points may be
rocked from front to back or back to front in the manner shewn at Figure 4.
In Figure 4 the lower part of the stem a' which carries the filling up point is
shewn to be pressed against a curved guide surface n by a spring o so that at the
completion of its downward movement it also receives a backward movement.
We prefer however to form the stem in the manner shewn at Figures 6, 8, 9

page_text: and 10 with a slot in it which embraces a small block p pivotted to the brass and to
rock the stem in the manner shewn in Figure 1.
To allow of the stems of the filling up points being put into or taken out of place
the upper part of each stem is forkol as shown at Figure 5 so that it may embrace
the rode, it has also projecting out from it a pin which can be made to enter a hole
in an arm g which can be slidden freely along the rod e and within which the rod
can turn. When the pin has been passed into the hole in the arm it can be locked
thero by a set screw h. By releasing the set screw and sliding the arm g along the
rod a the stem a¹ is set free from the rod c and can be drawn out from the brass b in
which it slides.
When the needle bar 7 is rocked the shaft d is placed in the position shown at
Figure 2 and the upward and downward motions of the stem a' are performed by
rods and lovers acted upon by a cam on the cam shaft. The motion required to
be given to the needles is given in the ordinary manner as shewn also in Figure 2.
The several movements given to the parts are as follows:-
When widening ribbed fabrics the points s used for shifting loops on the
machine needles are not always required to operate, at such times they are held out
of action by the lever s which causes the points to take up the position shewn in
Figure 2. During the time that the cover points are taking loops from the frame
needles as shewn on sheet 2 the filling up points a a are held up and out of action
as shewn on sheet 3. When the loops have been taken off the frame needles the
filling up points a are causad to descend and enter the loops last cast off from the
frame needles as shewn on sheet 4, Figure 8 in which position the filling up point a
is shown entering the loop from the back of a frame needle Z by the rocking motion
before described the point a is then brought in front of the frame needle Z as shewn
at Figure 9, the loop is then moved lengthwise opposite to an adjacent needle Z¹
Figure 10 and rocked into the position shewn preparatory to the frame needles rising
to take the loops from the cover points.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to bo performed we declare that what we
claim is :-
1. In rotary knitting machines for producing rib fabrics the governing the move-
ments of the filling up points used at the side of the sets of the ordinary cover points
in such a manner that they descend after the cover points have taken loops from
some of the frame needles and after the frame needles have been brought into a
position to admit of the cover points being shifted sidewise and in such manner that
in descending they enter loops which are at the back of the frame needles and have
been cast off from them and then carry these loops to the front of the frame needles
and when shifted sidewise together with the cover points bring the loops over the
top of the frame needles which have had loops taken from them by the cover points
substantially as described.
2. The application of mechanism to give to the filling up points independently of
the covering points a rocking as well as an up and down movement substantially as
described.
3. Forming the stems of the filling up points in such a manner that their upper
end passes clear of the rods by which the brasses of the cover points are carried to
permit of their upper ends being acted upon by controlling mechanism.
4. The arrangements of mechanism substantially as hereinbefore described for
controlling the movement of the filling up points.
THOMAS KIDDIER.
JAMES KIDDIER.
JOHN WM. KIDDIER.