provements in Knitting Machines.
Year: 1892

page_text: Date of Application, 14th May, 1892
Complete Specification Left, 14th Feb., 1893-Accepted, 18th Mar., 1893
PROVISIONAL SPECIFICATION
Improvements in Knitting Machines.
We, WILLIAM HARRISON Patentee and Manufacturer and CHARLES WALLACE
HARRISON Machinist, both of 48 Upper Brook Street and 69 Hyde Grove,
Chorlton-on-Medlock Manchester in the County of Lancaster do hereby declare
the nature of this invention to be as follows:-
:-
The improvements which are the subject of this invention relate to latch needle
knitting machines of a circular or cylindrical construction, and the objects of this
invention are to obtain a more accurate and simple adjustment of the machine for
the purpose of thickening any portion of a stocking or sock or other tubular fabric,
to place the dial needles and adjust the stitch cam in such positions as will enable
different thicknesses of yarn to be employed, and to use a form of cam that will
place the needles in and out of action.
We effect the vertical adjustment of the ribbing dial by means of a cap with
one or more angular slots, said cap being fitted over the boss of the ribbing
arm.
We fasten a stud or studs into the ribbing arm boss passing through the slot or
slots in the cap, .which causes the cap when turned to rise and fall.
The spindle which carries the dial and which has its bearing or is suspended from
the said adjusting cap will rise and fall by means of the adjusting cap, which is
held in a fixed position by a thumb screw passing through the cap into the ribbing
arm boss, or one of the studs before mentioned which can be lengthened and tapped
with an ordinary screw thread on which is a nut, said nut when tightened clamps
the cap securely to the ribbing arm boss which holds the dial in its vertical
position.
We also fasten on the boss of the ribbing arm a pointer which points to an index
on the cap, whereby the dial can be reset to any suitable height.
and
Instead of using slots and studs for the raising and lowering of the said cap
dial, we can effect the same result by a thread on the ribbing arm boss, and inside
the cap, or the inner side of the ribbing arm boss and the outside of the cap, or by
means of cams attached to the ribbing arm boss or the said cap.
To facilitate the setting of the stitch or centre cam, we screw to the cam cylinder
or shell a toothed rack, and on the stud of the stitch cam, a toothed pinion with a
lever or suitable handle affixed; by pressing the lever the pinion is forced up or
down the rack carrying the stitch cam with it, or we fix to the stitch cam a cog
rack and to the cam cylinder a vertical screw, the thread of which engages into the
cog teeth of the rack; by turning the vertical screw the stitch cam is raised up or
down according to the direction the vertical screw is turned.
For the purpose of thickening any part during the process of knitting a stocking,
we employ a splicer whereby we splice any part of the heel, leg or foot by
introducing an extra thread, which is usually employed to thicken the front part of
leg at the knees, at back, half of the leg immediately above the heel, also the heel
and underpart of the foot.
To effect this we fit vertically two sliding bars to the upright yarn carrier post
or any other suitable position; one of the said bars is connected at the upper end
to a fulcrumed lever or arm. Under the most convenient part thereof the splicing
thread is fed or conveyed to the needles.
The other vertical sliding bar is either of equal length or shorter than the one
connected with the lever, and both are connected by a small cross arm fulcrumed

page_text: in the centre, or provided with a rack and pinion wheel which is fitted between the
two racks, so that when one bar is pushed upwards the other descends.
To obtain this action automatically we have drilled into the base of the machine
holes at given distances apart, in which we insert mushroom or button headed pins,
or pins of other suitable shape, or slides mounted with suitable projections, so that
when the machine is worked the yarn carrier post revolves and one of the vertical
sliding bars comes into contact with one of the said pins or slides, first raising one
of the vertical sliding bars, and by the action of the pinion or cross lever, lowering
the other vertical sliding bar, and as the yarn carrier post revolves, the depressed
or lowered vertical sliding bar is raised by coming into contact with another of the
said pins or slides, and thus the lever under which the splicing thread passes nips
or pinches the thread so tight that it breaks and thus stops the splicing yarn
feeding into the needles for any given portion of the circumference of the tubular
fabric and again releases the splicing thread.
By the combined action of the pins or slides the splicing thread is carried to the
needles by the main continuous thread to which it is guided by upright guides;
upon the yarn carrier post we fit a lever which draws out sideways simultaneously
with the nipping of the splicing thread sufficient of the same thread from the
bobbin, so that when the same side lever is closed to normal position simultaneously
with the releasing of the splicing thread, sufficient slack is caused to ensure the
splicing thread being easily carried by the main thread to the needles.
To put the dial needles in and out of action, we fit on the cam cap an outthrow
cam to force the needles outwards, and hinge or fulcrum it at the end which first
comes into contact with the buts or beels of the needles, and through the cam cap
we make a semicircular slot through which is fastened into the cam below a stud or
screw which enables the cam to be opened into action or closed out of action laying
close to the centre fixed cam, and the said out throw cam is retained in its open or
closed position by means of suitable catches engaging the said stud or screw, or by
an ordinary or thumb screw or nut clamping to the cam cap, the out throw cam in
any set position.
Dated this 13th dev of Man 1900
WILLIAM HARRISON,
CHARLES WALLACE HARRISON,
Applicants.
COMPLETE SPECIFICATION.
Improvements in Knitting Machines.
We,, WILLIAM HARRISON, Patentee and Manufacturer, and CHARLES WALLACE
HARRISON, Machinist, both of 48 Upper Brook Street, and 69 Hyde Grove,
Chorlton-on-Medlock, Manchester, in the County of Lancaster, 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 stateinent :-
The-improvements which are the subject of this invention relate to latch needle
knitting machines of a circular or cylindrical construction, and the objects of this
invention are to obtain a more accurate and simple adjustment of the machine for
the purpose of thickening any portion of a stocking, or sock, or other tubular
fabric, to place the dial needles and adjust the stitch cam in such positions as will
enable different thicknesses of yarn to be employed, and to use a form of cam that
will place: the needles in and out of action. We effect the vertical adjustment of
the ribbing dial, by means of a cap such as c, Figs. 1 and 2 with one or more
slots d that are placed at an angle said cap being fitted over the boss b of the
ribbing arm a. Wet fasten a stud or studs e into the ribbing arm boss b, passing
through the-slot-or slots din the cap, which causes the cap when turned to rise
and fall.

page_text: The spindle which carries the dial and which has its bearing or is suspended
from the said adjusting cap, will rise and fall by means of the adjusting cap which
is held in a fixed position by a thumb screw passing through the cap into the
ribbing arm boss, or one of the studs before mentioned which can be lengthened and
tapped with an ordinary screw thread on which is a nut e¹, said nut when tightened
clamps the cap securely to the ribbing arm boss which holds the dial in its vertical
position. We also fasten on the boss of the ribbing arm, a pointer g which points
to an index h on the cap, whereby the dial can be reset to any suitable height.
Instead of using slots and studs for the raising and lowering of the said and
cap
dial, we can effect the same result by a thread on the ribbing arm boss and inside
the cap as shown in Fig, 3, or the inner side of the ribbing arm boss and the
outside of the cap, or by means of cams attached to the ribbing arm boss or the
said cap as shown in Fig. 4, and may be fixed in position by a set screw or other
suitable means.
To facilitate the setting of the stitch or centre cam, we screw to the cam
cylinder or shell j, a toothed rack k and on the stud of the stitch cam m, a
toothed pinion o, with a lever n or suitable handle affixed as shown in Fig. 5; by
pressing the lever n, the pinion is forced up or down the rack k carrying the
stitch cam m with it, or we fix to the stitch cam a cog rack p and to. the cam
cylinder a vertical screw 9 as shown in Fig. 6 the thread of which engages.into the
cog teeth of the rack; by turning the vertical screw, the stitch cam is raised up or
down according to the direction the vertical screw is turned.
For the purpose of thickening any part during the process of knitting a stocking
we employ a splicer whereby we splice any part of the heel, leg, or foot by intro-
ducing an extra thread, which is usually employed to thicken the front part of leg
at the knees, at back half of the leg immediately above the heel, also the heel and
underpart of the foot. To effect this we fit vertically two sliding bars r,, to the
upright yarn carrier post as shown in Fig. 7; one of the said bars is connected at
the upper end to a fulcrumed lever or arm ; under the most convenient part
thereof the splicing thread is fed or conveyed to the needles from the bobbin
Fig. 8 is plan of the same.
.
The other vertical sliding bar is either of equal length or shorter than the
one connected with the lever, and both are connected by a small cross arm
fulcrumed in the centre, or provided with a rack and pinion wheel t, which is
fitted between the two racks so that when one bar pushed upwards the other
descends. To obtain this action automatically we insert slides u with suitable
projections u¹ placed at opposite sides of the machine, so that when the machine
is worked, the yarn carrier post s revolves and one of the vertical sliding bars
comes into contact with one of the said projections, first raising one of the vertical
sliding bars, and by the action of the pinion or cross lever, lowering the other
vertical sliding bar, and as the yarn carrier post revolves, the depressed or lowered
vertical sliding bar is raised by coming into contact with another of the said
projections and thus the lever under which the splicing thread passes, nips
or pinches the thread so tight that it breaks and thus stops the splicing yarn
feeding into the needles for any given portion of the circumference of the tubular
fabric and again releases the splicing thread.
By the combined action of the projections and slides the splicing thread is
carried to the needles by the main continuous thread to which it is guided by
upright guides. Upon the yarn carrier post we fit a lever which rises
sinultaneously with the nipping of the splicing thread, drawing sufficient of the
same thread from the bobbin, so that when the said lever is returned to its normal
position simultaneously with the releasing of the splicing thread, sufficient slack
is caused to ensure the splicing thread being easily carried by the main thread to
the needles.
We do not desire to describe the means for placing the dial needles in and out
of action, to which reference was made in the Provisional Specification that
accompanied this application, as the same may not be considered to be new, but

page_text: 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 :-
1st. In circular knitting machines the combination of the boss of the ribbing
arm with a cap that will adjust the ribbing dial, either by means of angular slots
and studs, or by a screw thread formed on said boss and in said cap, or by cams
formed thereon in the manner and for the purpose substantially as herein before
described.
2nd. In circular knitting machines the means employed for setting the stitch or
centre cam by the use of a rack and pinion, in combination with a lever or a
rack and screw threaded spindle, in the manner substantially as herein before
described.
3rd. In circular knitting machines, for the purpose of thickening any part of
the article during the process of knitting, the means employed for introducing an
extra thread by the combination with the upright yarn carrier, of vertical sliding
bars that are actuated alternately by means of projections affixed to dovetailed
plates formed to slide into the base of the machine, and which may be withdrawn
therefrom when not required, in the manner substantially as herein before
described.
Dated 13th February 1893.
WILLIAM HARRISON.
CHARLES WALLACE HARRISON.