Improvements in Straight Bar Knitting Machines.
Year: 1893

page_text: Date of Application, 3rd May, 1893
Complete Specification Left, 2nd Feb., 1894-Accepted, 3rd Mar., 1894
PROVISIONAL SPECIFICATION.
Improvements in Straight Bar Knitting Machines.
1, CHARLES HENRY ALDRIDGE, of Pinfold Gate, Loughborough in the County
of Leicester, Hosiery Machinist, do hereby declare the nature of this invention to
be as follows:-
33
The object of this invention is to enable "tuck" or mispressed work in various
forms and patterns to be produced automatically on a flat or rotary knitting
machine and to produce hose, half hose socks &c. with "tuck" work legs part heel
and insteps, and at the same time plain wrought, or fashioned heels and toes
automatically.
To effect this I use a special presser or pressers arranged controlled and modified
according to the special class of work it may be desired to produce, and also use in
addition the ordinary presser for the purpose hereinafter described.
Immediately below the ordinary presser and above the knocking over bits; I
mount one, or more notched presser bars to which an end wise movement, as well as
a transverse movement is imparted. The special presser bars I carry by arms from
a rocking shaft or shafts so that they may be made to protrude beyond the ordinary
presser bar or withdrawn below it.
The shaft I make capable of being shifted end wise to bring the notches in the
bars opposite to any desired needles and also make the bars capable of being
slidden one over the other so as to close their notches or leave them open.
In order to be able to make socks and the like with "tuck" work legs part heel
and insteps, and plain wrought heels and toes I arrange the pressers as follows:-
Two thin notched presser bars capable of sliding the one on the other end wise,
are mounted by means of suitable attachments to a small rocking shaft (to which
suitable motion is imparted by any convenient means) situated below the sinker
bars, or "head." These two presser bars are mounted immediately below the
ordinary presser. By the oscillation of the said rocking shaft the notched edges of
the said presser bars can be caused to project beyond the nose of the ordinary
presser. By an endwise movement of the said rocking shaft the notched edges of
the presser bars can be shifted endwise so as to vary the needles upon which the
" tucks or mispresses are made.
"
By suitable stops and springs or by other independent mechanism one of the two
said presser bars inay be caused to slide on the other to make the notches in them
coincide or not. In this way sometimes the two bars will be moved endwise together
or sometimes the one will move end wise while the other does not move endwise,
and so on according to the needles it is desired to press, or mispress, but the two
bars are always moved to and from the needles together, by the oscillation of the
shaft upon which they are mounted.
The process of working is as follows:-As the needles descend they advance
towards the ordinary presser and are pressed so as to "land" the selvedge loops.
Immediately the selvedge loops are "landed" the needles recede from the presser
and the notched presser bars come forward. The needles then continue their
descent and the notched presser bars come into action whereby the "tucks" or
mispresses are produced as desired.
When the two plain fashioned heel pieces have to be made on either side of the
instep portion a certain number of needles on either side upon which the heel pieces
are to be formed require to be pressed every course while the needles forming the
instep require to be pressed, or mispressed, as when forming the leg. To do this

page_text: 1
I mount a third movable presser bar, below the two said notched presser bars,
which comes into action only while forming the heels. This presser bar is carried
by an independent rocking shaft and thereby receives a motion to and from the
needles. This has a plain pressing edge which is cut away in the centre for a
width equal to the width of the instep, so that when this presser bar comes forward,
the needles forming the instep are not pressed by it but the needles forming the
heels are all pressed by it and plain wrought or fashioned heels are produced.
This third presser bar may be made with adjustable presser pieces or two bars
capable of being adjusted endwise may be used so that the width of instep can be
adjusted...
When forming the plain fashioned toe the two notched presser bars are so
arranged that the notches in one bar are not over the notches in the other bar and
thus form a continuous presser whereby all the needles are pressed.
In some cases instead of using two notched presser bars I use one notched presser
bar and one plain presser bar. In which case I mount each presser bar on an
independent rocking shaft so that the notched pressér bar is used only when tucks or
mispresses are required and the plain presser bar for the plain courses between the
rows of tucks. The third presser being used for the heels only as when using two
notched presser bars.
In some cases instead of using the ordinary presser and additional notched presser
bars I use the ordinary presser and additional sliding presser bits mounted
immediately below it. They slide in grooves cut in a bar which is attached to a
rocking shaft. By the oscillation of this rocking shaft the bar which carries the
bits is brought forward so that the noses of the bits project beyond the nose of the
ordinary presser, and so act on the beards of the needles in the same manner as
the notched presser bars above described. The tail ends of these bits are acted
upon direct, or by means of jacks, by a pattern-drum, sliding plates, or comb plates,
which cause certain bits to stand forward and, allows others to fall back and thus
tucks or mispresses are produced at will.
In some cases instead of using notched presser bars I use an independent presser,
or jack for each needle. In this case the ordinary presser is cut away and the tops
of the several jacks take its place. These jacks may be mounted on a shaft below
the sinker bar, or head. They may be held up against the needle beards by either a
pattern-drum sliding bars or comb plates so that by varying the pegs, notches or
holes in the said drum, or comb plate, any jack or jacks desired can be allowed to
fall back from the needle beards whereby tucks or mispresses are produced.
In some cases when using jacks as above described, instead of mounting the
jacks on a rod or shaft, I mount them in slides or grooves which are placed at a
convenient angle below the presser. The jacks are held up to the needle beards
by means of a pattern-drum, sliding bars or comb plates whereby needles are pressed
or mispressed as desired.
D
1000
C. H. ALDRIDGE.
COMPLETE SPECIFICATION.
Improvements in Straight Bar Knitting Machines.
I, CHARLES HENRY ALDRIDGE, of Pinfold Gate, Loughborough, in the
County of Leicester, Hosiery Machinist, 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 :-
· My improvements are applicable to straight bar knitting machines of the type
known as Cotton's Patent. The object of this invention is to enable "tuck" or
mispressed work in various forms and patterns to be produced automatically on such
knitting machines and to produce hose, half-hose, socks, etc., with "tuck" work
i

page_text: legs, part heels, and insteps, and at the same time plain, wrought, or fashioned
heels and toes automatically.
To effect this I use a special presser or pressers, arranged, controlled and modified
according to the special class of work it may be desired to produce, and also use
in addition, the ordinary presser for the purpose hereinafter described.
Immediately below the ordinary presser, and above the knocking-over-bits; I.,
mount one or more notched presser bars to which an end wise movement, as well as
a transverse movement is imparted. The special presser bars I carry by arms from
a rocking shaft or shafts so that they may be made to protrude beyond the ordinary
presser bar or withdrawn below it.
:
The shaft I make capable of being shifted endwise, to bring the notches in the
bars opposite to any desired needles and also make the bars capable of being
slidden one over, the other so as to close their notches or leave them open.
This arrangement is applicable whether the notched presser bars be used for
acting on the needle beards or are used for acting against the needle stems to hold
the needles they act on away from the ordinary plain presser.
In order to be able to make socks and the like with "tuck" work legs, part':
heels, and insteps, and plain, wrought heels and toes 1 arrange the pressers as
follows:-
Two thin notched presser bars capable of sliding the one on the other, end wise,
are mounted by means of suitable attachments to a small rocking shaft (to which
suitable motion is imparted by any convenient means) situated below the sinker
bars, or "head." These two presser bars are mounted immediately below the.
ordinary presser. By the oscillation of the said rocking shaft the notched edges
of the said presser bars can be caused to project beyond the nose of the ordinary
presser. By an end wise movement of the said rocking shaft the notched edges of
the presser bars can be shifted end wise so as to vary the needles upon which the
"tucks or mispresses are made.
"
By suitable stops and springs or by other independent mechanism one of the two
said presser bars may be caused to slide on the other to make the notches in them,
coincide or not. In this way sometimes the two bars will be moved end wise
together or sometimes the one will move endwise while the other does not move
end wise, and so on according to the needles it is desired to press, or mispress, but
the two bars are always moved to and from the needles, together by the oscillation
of the shaft upon which they are mounted.
"
Figures 1 and 2, Sheet 1, show one arrangement of the mechanism described.
Figure 1 is a part section of the mechanism and some adjacent parts. Figure 2
is a plan of the presser bars D, and D'. A are the needles, A₁ the needle bar,
B.the sinkers, B₁ the "head" or bottom sinker bar, B' is the " coverer or top
sinker bar, B³ is the nose of the ordinary presser, C are the knocking over bits,
which are carried by a suitable bar C, D is a small. rocking shaft carried in
suitable bearings and is free to move endwise in its bearings as well as to rock or
oscillate.. D is one of several short arms which are fast upon the shaft D'. The
said arms D carry the two presser bars D, and D'. The presser bar D¹ is attached
to the tops of the arms D. The presser bar D is so arranged that it can slide
lengthwise upon the top of the presser bar D' and it may be provided with suitable
pins D (Figure 2) which fit, and slide in slots D' in the presser bar D'. In some
cases instead of round pins D, a strip or strips are rivetted to the under side of
the presser bar D to fit and slide in the slots D' so as to provide a longer bearing
surface.
One end of a spring D" may be attached to the pin D10, and its other end to the
presser bar D', so that the said spring will draw the pins D10, (and consequently
the presser bar D, also) to the right hand end of the slots D', for the purpose
herein after described. When the two presser bars D and D', are in this position
(as shown in Figure 2) the notches of the two presser bars may coincide. These
notches may be cut and arranged in any pattern desired. Attached to the rocking
shaft D', is an arın D, to the end of which is connected a rod D'. The other end
:

page_text: of the said rod D' is connected by a pin or axle D³, to a lever D¹³, which is worked
or moved by a cam on the main shaft, so that the motions of the said cam will
provide a small oscillation of the rocking shaft D and consequently a reciprocating
movement of the presser bars D and D', to and from the needles A. When the
said presser bars D and D₁ are forward they are in such, a position that they
will "press" the needle beards when the needle beards are not in a position to be
pressed by the ordinary presser. And when the said presser bars D and D', are
in their backward position they are just behind or level with the nose B of the
ordinary presser so that the needle beards will not then be pressed by them.
The process of working is as follows:-
•
As the needles descend they advance towards the ordinary presser and are pressed
só as to "land" the selvedge loops, that is, the needles when pressed descend just
far enough for the loops on the needles at the two selvedges to come above the
points of the beards of these needles, but not far enough for the loops on the
remainder of the needles to come on to the beards. This can be done because
the selvedge loops are always somewhat higher on the stems of the needles than
the other loops. Immediately the selvedge loops are "landed" the needles recede
from the presser and the notched presser bars come forward. The needles then
continue their descent and the notched presser bars come into action whereby the
"tucks" or mispresses are produced as desired.
"
The rocking shaft D' may receive a varied end wise movement from any of the
well known arrangements of suitable mechanism such as a "pattern-wheel,"
"jacquard or chain with inclines, so as to bring the notches of the presser bars D
and D', opposite various needles in rotation and so produce varied patterns of
mispressed work.
The end D" of the presser bar D, may project beyond the end of the presser
bar D, and upon the under side of the ordinary presser D³, a fixed pin or stop may
be provided in such a position that when the rocking shaft D (and consequently the
presser bars D and D', also) has been moved by the pattern wheel, or other
mechanism, a certain distance, in the direction of the arrow, (Figure 2) the presser
bar D will come into contact with the said pin and be stopped by it. Then if the
shaft D is moved still further in the same direction, the presser bar D¹ will slide
under the presser bar D and the notches in the two bars will no longer coincide and
thus a further variation of mispressed work can be produced. And when the rocking
shaft D has been moved far enough the notches in the one bar will be covered by
the spaces in the other and so a continuous pressing edge will then be presented to
the needle beards and all the loops will then be "cleared" and plain work will be
produced.
'
When the two plain fashioned heel pieces have to be made on either side of the
instep portion a certain number of needles on either side upon which the heel pieces
are to be formed require to be pressed every course while the needles forming the
instep require to be pressed, or mispressed as when forming the leg. To do this, I
mount a third movable presser bar, below the two said notched-presser bars, which
comes into action only while forming the heels. This presser bar is carried by an
independent rocking shaft and thereby receives a motion to and from the needles.
This has a plain pressing edge which is cut away in the centre for a width equal to
the width of the instep, so that when this presser bar comes forward, the needles
forming the instep are not pressed by it but the needles forming the heels are all
pressed by it and plain wrought or fashioned heels are produced.
This third presser bar may be made with adjustable presser pieces or two bars
capable of being adjusted end wise may be used so that the width of instep can be
adjusted.
When forming the plain fashioned toe, the two notched presser bars are so
arranged that the notches in one bar are not over the notches in the other bar and
thus form a continuous presser whereby all the needles are pressed.
This will be better understood by referring to Figures 1 and 3, Sheet 1. Figure 3
is a plan of the third presser bar E. E' is a small rocking shaft carried in suitable

page_text: bearings in which it can rock but not slide.
E' is one of several arms which are
fast on the shaft E, and to the tops of which the presser bar E is attached. Fixed
upon the shaft E' is another arm E³ to the end of which is connected a rod E'.
The bottom end of the said rod may be connected to the same axle or pin D8 on the
lever D as the rod D'. By these means the presser bar E will be moved to and
from the needle beards-precisely in the same manner and at the same time as the
presser bars D and D'. But as the presser bar E is only required to be in action
during the formation of the plain fashioned heels, it may be thrown out of action
when not required as follows:-
The bottom end of the rod E is slotted. Upon a pin or axle E7 on the rod E*
is a lever or stop one end of which forms a handle E' and the other end Es is
so arranged that when it is in the position shown in full lines it will hold the
pin D, at the bottom of the slot E and the presser bar E will then be in
action. But when the handle E' is moved into the position indicated by dotted
lines the slot E will be. left open and the pin D8, will move up the slot E³,
and the presser bar E will not then be in action. In some cases the rocking
shaft E may be rocked by an independent cam and lever and may be put in
and out of action automatically from and by the pattern wheel or other convenient
arrangement. The presser bar E, is cut away in the centre as shown in Figure 3,
so as to leave a space a to b, equal to the width of instep required, where the
needles will be pressed or mispressed by the presser bars D and D' while all
the needles upon either side of the instep portion i.e. c to a and b to d will be
pressed at every course by the plain pressing edges c a and b d of the presser
bar E, and thus plain "wrought" or "fashioned" heel pieces can be formed at
the same time as the mispressed instep.
In some cases instead of making the presser bar E in one piece and cut away
in the centre as shown at Figure 3, the two pressing portions ca and b d may
be made separate and adjustable, thereby providing an easy adjustment for the
width of instep. Or the presser bar E may be made in two pieces either jointed
together with an adjustable joint, or independent the one of the other, each
carried by its own arms and capable of independent adjustment.
When forming the plain wrought or fashioned toe the two notched presser
bars D and D' may be so arranged that the notches in one bar are not over the
notches in the other bar and so a continuous pressing edge is presented to the needle
beards as herein before described.
In some cases instead of using a third independent presser bar such as E when
forming the plain heel pieces as above described, I arrange the two notched presser
bars D and D¹ so that they shall be longer than is required to press all the needles
in the width of fabric produced. The extended portions being unnotched and at
one end of each bar. Thus, when the notched portions of the two said bars are
in action across the whole width of the fabric, the unnotched portions will extend
beyond the width of the fabric, one on each side. When the plain heel pieces
have to be formed I cause the two said bars to be moved inwards (sliding the
one over the other) so that the plain or unnotched portions of their edges will
press all those needles on either side of the instep upon which the said heel pieces.
are being formed; while at the same time the notched portions of their edges
continue to press or mispress the instep portion of the fabric as before.
In some
cases also instead of pressing the selvedge needles by the main
presser B³ as herein before described, I adjust the two notched presser bars D
and D so that the plain, or unnotched, portions of their edges may press the
selvedge needles.
In some cases also I cause the two said presser bars D and D' to be acted upon
by the narrowing screw, or by independent nechanism, so that they shall be
adjusted simultaneously with the width of the fabric produced and so ensure that
the selvedge needles shall always be pressed.
In some cases instead of using two notched presser bars I use one notched presser
bar and one plain presser bar, in which case 1 mount each presser bar on an

page_text: independent rocking shaft so that the notched presser bar is used only when tucks
or mispresses are required and the plain presser bar for the plain courses between
-the rows of tucks. The third presser being used for the heels only as when using
two notched presser bars.
t
One form of this arrangement of presser bars is shown at Figure 4 Sheet 2 where
a third rocking shaft F is carried by suitable bearings and has a series of arms F
fixed thereon. To the tops of the said arms F¹ the presser bar D may be attached
which is then moved independent of the presser bar D₁ by the rocking of the
shaft F. The presser bar D in this case may be a plain presser bar while the
presser bar D' may be notched.
The said rocking shaft F may be worked by a cam and lever through the arm F?,
and the connecting rod F, in the same manner as the shaft D' but in this case the
"trucks" on the ends of the cam levers will be." shogged" or shifted from the cams
on to plain "runs "and vice versa by the pattern wheel, jacquard or by a chain. with
inclines, so that thereby the presser bars D and D' will be thrown in and out of
action automatically and plain courses and mispressed courses of work are produced
alternately as desired. .
In some cases the presser bars D, D', and E, when arranged either as shown in
Figure 1 or Figure 4, may be jointed to the tops of their respective arms, and may
then slide in suitable brackets attached to the under side of the head B', which
brackets may hold the noses of the presser bars close up to the under side of the
ordinary presser B³, as they are brought forward by the rocking of the shafts D'
and E, and in some cases the underside of the ordinary presser B is cut away so as
to allow the presser har D to come close up to the underside of the sinkers so as to
reduce the length of the needle beards.
The arrangements hereinbefore described are applicable whether the notched
presser bars be used for acting on the needle beards or are used for acting against
the needle stems to hold the needles they act on away from the ordinary plain
presser.
In some cases instead of using the ordinary presser and additional notched presser
bars I use the ordinary presser and additional sliding presser bits mounted
immediately below it. They slide in grooves cut in a bar which is attached to a
rocking shaft. By the oscillation of this rocking shaft the bar which carries the
bits is brought forward so that the noses of the bits project beyond the nose of the
ordinary presser and so act on the beards of the needles in the same manner as
the notched presser bars above described. The tail ends of these bits are acted
upon direct, or by means of jacks, by a pattern drum sliding plates, or comb plates
which cause certain bits to stand forward and allows others to fall back and thus
*" tucks or mispresses are produced at will.
"
"
Figure 5 shows one form of this arrangement. G is a rocking, shaft carried in.
suitable bearings attached to any convenient part of the frame. Upon the said
shaft G, at each end of the division of work, there is a three arm bracket G¹,
attached to the top arm of the said bracket G', there is a bar G. This bar has
." tricks
or grooves cut or formed on the top side, in most cases one opposite each
needle. In these tricks or grooves, sliding presser bits G³ are free to slide. These
bits may be straight or shape (as shown) as most convenient. A tixed shaft G',
is attached to the two brackets G³, which carries a row of "jacks" G, one for each
presser bit G. One end of each jack G acts upon the tail end of a presser bit G³,
and the other ends of the said "jacks are acted upon by a sliding bar G', which
slides in bearings GB, these bearings G8, may be attached to a shaft G, which is
carried by and is free to turn or rock in the brackets G'. To the arm G', of the
bracket G¹, one end of a rod Go is connected, the other end of the said rod being
connected to a suitable lever worked or acted upon by a cam on the main shaft which
produces a rocking motion in the shaft G. By these means the grooved bar G³,
with the presser bits G³, is caused to advance and retire to and from the
needles A.
"
Fast to the shaft G is a lug or pin G₁ which is kept in contact with the nose

page_text: of a fixed bracket G", by a spring or springs G₁. The bracket G½ may be
attached to any convenient stationary part of the machine.
Now it will be seen that as the shaft G is rocked so as to advance the presser
bits G, towards the needles as shown, the shaft G' will move further away from
the nose of the bracket G", but the spring G" keeps the lug G" in contact with
the nose of the bracket G, and by these means the shaft G is turned in its
bearings and the sliding bar G' is brought into the position shown, i.e., under the
tails of the jacks G', and when the shaft G is rocked in its bearings in the opposite
direction, so as to cause the presser bits G to retire from the needles, the shaft G"
will be moved nearer to the bracket G", the nose of which, pressing upon the lug G",
turns the shaft G in its bearings and the sliding bar G' is moved into the position.
indicated by dotted lines.
The sliding bar G7 may be cut or notched on its edge in any convenient form
or pattern so that when a notch is under a jack G that jack will not hold its.
corresponding presser bit G³ forward and the corresponding needle will remain.
unpressed.
1
Thus it will be seen that by shifting the sliding notched bar G' end wise, the
order in which the needles are pressed is varied. The notched bar G' may be
shifted when it is in the position indicated by dotted lines by any convenient well.
known means, such as inclines on a chain, "pattern wheel" "jacquard" etc.
".
In some cases two or more notched bars such as G7 may be used and a greater
variety of mispressed work is thereby produced. In some cases a "pattern drum)
or "jacquard" cylinder may take the place of the shaft G' and the notched bar G',
it may be rocked in its bearing by any convenient means and thus a still greater
variety of mispressed work can be produced.
In some cases the notched bar G7 may be arranged to act direct upon the tails of
the presser bits Gs without the intervention of the jacks G.
In some cases the bar G' which carries the presser bits G³ may be jointed to the
tops of the brackets G' instead of fast thereto, in which case the said bar G' will
be held up to the underside of the ordinary presser B³ by suitable brackets carried.
by the head B¹.
In some cases also where instead of using notched presser bars I use an independent.
presser or jack for each needle I cut away the ordinary presser and make the tops
of the several jacks to take its place. These jacks may be mounted on a shaft.
below the sinker bar or head. They may be held up against the needle beards.
by either a pattern drum sliding bars or comb plates so that by varying the
pegs, notches, or holes, in the said drum or comb plate, any jack or jacks desired
can be allowed to fall back from the needle beards whereby tucks or mispresses are
produced.
Figure 6 Sheet 3 shows this latter arrangement. HH are the jacks which rock
or oscillate upon the fixed rod or shaft H' which is situated below the sinker
bar B. H is a comb bar which may be fast to the head rail J as shown..
This comb bar steadies the tails of the jacks H and keeps them in a correct
position. The top ends of the jacks H pass, and fit freely between the knocking
over bits C. Thus the said jacks H are held in their correct position at the
top by the knocking over bits C and at the bottom by the comb bar H.
When the jacks are in the position shown in full lines their top ends or pressing
noses H are in a position to press the needle beards, and when the jacks are
in the position indicated by dotted lines their pressing noses H³ will not touch
the needle beards and so those needles will not cast off their loops.
K is a shaft carried in suitable bearings. At convenient intervals on the shaft K
there are collars K'. These collars may form bearings for a notched bar K. The
shaft K may be caused to rock in its bearings by a suitable cam on the main shaft,
so as to cause the notched bar K³, to occupy the position shown in full lines or the
position indicated by dotted lines. When the said notched bar K' is in the position
shown in full lines, those jacks which are not opposite a notch will be held up to
the needle beards and are then in the position shown in full lines, and those jacks

page_text: which are opposite a notch will be in the position indicated by dotted lines and
their corresponding needles will then not be pressed. When the notched bar K*
is in the position indicated by dotted lines it may be shifted end wise in its
bearings K (or it may be fast in its bearings and the shaft K may be shifted) by a
t pattern wheel "
""jacquard" or chain with inclines upon it. By these means: the
jacks held up and consequently the needles that are pressed or mispressed are varied
as desired.
L is a shaft placed in any convenient position to which arms L' are fast. These
arms L' carry a rod or bar L. The shaft L may receive a suitable rocking motion
from a cam on the main.shaft so that when the notched bar K2 is in the position
indicated by dotted lines the rod L' will press upon the tails of the jacks H and
place and hold them in the position indicated by dotted lines i.e. out of action.
In some cases one or more notched bars may be arranged alongside of, or
together with, the notched bar K' so as to produce.a greater variety of mispressed
work.
In some cases a plain un-notched bar may be attached to the shaft K adjacent to
the notched bar K and the shaft K may be caused to rock in its bearings so as to
sometimes bring the notched bar or bars K' and sometimes the plain bar under the
tails of the jacks H. When the plain bar is under the tails of the jacks all the
needles will be pressed and a course of plain work will be produced.
By this arrangement a variety of alternate courses of plain and mispressed work
can be produced as desired.
In some cases several notched or plain bars may be arranged round the shaft K
and the shaft K may be turned in its bearings by any convenient means so as to
bring the several bars into action seriatim.
In some cases a pattern drum provided with suitable bits or pins on its surface
to lift the tails of the jacks, may take the place of the shaft K, and the notched
bar or bars K, and thus a still further variety. of "tuck" or mispressed work may
be produced.
"
In some cases the bar or bars K² on the shaft K may be suitably connected to
the screw box or boxes of the machine, in which case the said bar or bars K' may
be plain and so arranged that as the screw boxes are racked in or out the bars are
racked also and the jacks are held up or allowed to fall back in rotation and thus
"radial knitting" can be produced.
When radial knitting is required it is generally desirable to use hooked knocking
over bits such as are well known and generally used for this class of work.
. In some cases when. using jacks as above described instead of mounting the
jacks on a rod or shaft I mount them in slides or grooves which are placed. at
a convenient angle below the presser. The jacks are held up to the needle beards
by: means of a pattern drum, sliding bars or comb plates whereby needles are
pressed or mispressed as desired.
Figure 7 Sheet 3 shows one form of this arrangement. M M are the sliding
jacks which slide in the direction of their length in tricks or grooves in the fixed
bar M¹ and are held in their places by the coverer or plate M³. The bar M is
carried by suitable brackets not shown. Below the tail ends of the said jacks M,
a shaft M³ may be placed. This shaft may be exactly similar in construction and
method of action to the shaft K and the notched or plain bar K2 Figure 6 herein-
before described. By means of the said shaft M and its sliding notched bar M
the jacks M are held up to or released from their forward position and their
corresponding needles are pressed or mispressed as desired.
"
In some cases a pattern drum or Jacquard cylinder may take the place of the
shaft M and a greater variety of "tuck or mispressed work can be produced.
In some cases the bar or bars M' may be plain and attached to the screw box or
boxes for producing "radial" knitting as herein before described with reference to
Figure 6.
In some cases the jacks M may be provided with suitable springs to keep them
pulled back to the notched bar M*.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1. declare that what I;
claim is :-
"
1. A straight bar knitting machine of the type known as "Cotton's Patent
having a presser bar or bars situated below the sinker bar and carried by arms
from a rocking shaft or shafts substantially as herein before described.
"
2. A straight bar knitting machine of the type known as "Cotton's Patent
having one or more moveable notched presser bars for acting against the needle
beards below and in addition to the ordinary presser such bar or bars being capable
of sliding end wise separately or together and of being protruded beyond or made
to recede behind the nose of the ordinary presser for producing "tuck"
mispressed work substantially as herein before described.
or
3. A straight bar knitting machine of the type known as "Cotton's Patent "
having below and in addition to the ordinary presser one or more notched presser
bars carried by arms from a rocking shaft or shafts below the sinker bar either
the shaft or shafts or the bar or bars being capable of having an endway movement
given to them substantially as herein described.
"
4. A straight bar knitting machine of the type known as "Cotton's Patent 50
constructed that the loops on the selvedge needles may first be landed over the
ends of the needle beards by the action of the ordinary presser and afterwards the
remainder of the needles may be acted on by another presser bar or bars situated
below the ordinary presser bar substantially as herein before described.
5. A straight bar knitting machine of the type known as "Cotton's Patent"
having below and in addition to the ordinary presser moveable presser bars one
shaped and adjusted so as to press those needles only upon which the heel pieces
are formed and another or others notched to produce "tuck" work so that plain
wrought or fashioned heel pieces may be formed at the same time as
"tuck" or
mispressed insteps are being produced substantially as herein before described.
6. A straight bar knitting machine of the type known as "Cotton's Patent"
having three independent moveable presser bars below and in addition to the
ordinary presser, one said presser bar being notched, another plain, the third plain
and in one or more parts shaped and arranged so as to press only those needles
upon which the heel pieces are formed, each presser bar being carried and worked
by a separate rocking shaft and thrown in and out of action as and when desired
for producing courses of varied "tuck" or mispressed work and plain work
alternately and also plain wrought or fashioned heel pieces simultaneously
substantially as herein before described.
7. A straight bar knitting machine of the type known as "Cotton's Patent"
having sliding presser bits working in grooves just below the sinker bar and moved
forward against the needles by rocking needles or jacks, one for each sliding bit
actuated by plain or notched bar or bars pattern drum or jacquard acting on their
tail ends substantially as herein before described.
8. A straight bar knitting machine of the type known as "Cotton's Patent"
having sliding presser bits working in grooves just below the sinker bar the said
presser bits acting below and in addition to the ordinary presser and their noses
being caused to protrude beyond and recede behind the nose of the ordinary presser
by rocking levers or jacks, one for each sliding bit actuated by plain or notched
bar or bars, pattern drum or jacquard acting on their tail ends for producing
"tuck" or mispressed work or radial knitting substantially as herein before
described.
9. A straight bar knitting machine of the type known as "Cotton's Patent"
having sliding presser bits working in grooves in a moveable bar such bar being
carried and moved by a rocking shaft situated below the sinker bar, the said
presser bits acting below and in addition to the ordinary presser and their noses
being caused to protrude beyond and recede behind the nose of the ordinary presser
by means of a rocking shaft in conjunction with a notched bar or bars, or notched
B

page_text: bars and jacks, or "jacquard" arrangement for producing "tuck," or mispressed
work substantially as herein before described.
10. A straight bar kuitting machine of the type known as "Cotton's Patent"
having an independent presser bit or "jack "for each needle; the said presser bits
being carried by and jointed upon a fixed rod or shaft situated below the sinker
bar; the pressing noses of the said pressing bits being guided by and working
between the knocking over bits and being caused to press or mispress the needles
by means of plain or notched bar or bars, "pattern drum or "jacquard "acting
upon their tail ends, for producing "tuck or mispressed work or radial knitting
substantially as herein before described.
"
"
11. A straight bar knitting machine of the type known as "Cotton's Patent"
baving an independent presser bit or jack for each needle such presser bits sliding
in "tricks or grooves, formed in a fixed bar and being inclined at a convenient
angle below the sinker bar; the said presser bits being caused to advance towards
and press the needle beards or allowed to fall back out of action by means of
notched bar or bars, "pattern drum" or "jacquard" acting upon their tail ends for
producing "tuck" or mispressed work, or radial knitting, substantially as herein
before described.
"
12. A straight bar knitting machine of the type known as "Cotton's Patent
having a combination of mechanism for producing hose, half hose, socks, etc. with
"tuck" work legs, part heels and insteps and at the same time plain, wrought, or
fashioned heels and toes automatically substantially as herein before described.
"
13. A straight bar knitting machine of the type known as "Cotton's Patent
having a combination of mechanism for producing "tuck" or mispressed work in
various forms and patterns automatically substantially by the means herein before
described.
Dated this 20th day of Toner 1891
C. H. ALDRIDGE.