CERTAIN IMPROVEMENTS IN KNITTING MACHINES
Year: 1869

page_text: LETTERS PATENT to Henry Bernoulli Barlow, of Manchester, in the
County of Lancaster, Patent Agent, for the Invention of "CERTAIN
IMPROVEMENTS IN KNITTING MACHINES."-A communication from abroad
by Edouard Tailbouis and Ambroise Renevey, both of Paris, in the
Empire of France Merchants
Sealed the 5th April 1870, and dated the 28th October 1869.
PROVISIONAL SPECIFICATION left by the said Henry Bernoulli Barlow
at the Office of the Commissioners of Patents, with his Petition, on
the 28th October 1869.
I, HENRY BERNOULLI BARLOW, of Manchester, in the County of
Lancaster, Patent Agent, do hereby declare the nature of the said
Invention for "CERTAIN IMPROVEMENTS IN KNITTING MACHINES," being a
communication to me from abroad by Edouard Tailbouis and Ambroise
Renevey, both of Paris, in the Empire of France, Merchants, to be as
follows:-
These improvements have reference to rectilinear knitting machines,
and consist in certain improved combinations of needles, sinkers, jacks,
and other parts by which all the motions are obtained to produce perfect
knitted fabrics, and to contract or enlarge them as may be required.

page_text: "
The principal features of novelty consist,―
First. In giving a vertical up-and-down motion to the sinkers,
platines" in the comb bar, the teeth of which are shaped to prevent
the stripping of the work. The sinkers are connected to the jacks
"ondes," and are moved by them when drawing in the yarn.
Secondly. A divided presser composed of elbow plates of steel cither
fixed or movable, which separate the sinkers; these clbow plates have
a recess to hold the fabric.
Thirdly. A fixed cross rail supporting a dividing comb for the sinkers;
this cross rail serves to hold down the sinkers.
Fourthly. A needle bar moving vertically and horizontally or dia-
gonally at the same time as the sinkers; this double action is obtained
by two levers actuated by cams on the cam shaft.
Fifthly. Jacks, "ondes," with springs placed above the fulcram shaft;
these jacks are connected to the sinkers, and are moved during the
drawing in by a cross rail acting on the whole set of jacks.
Sixthly. Apparatus, "boite à chevalets," consisting of a cross rail and
slide with a movable bar by which the loops are slackened when
required. The height of the movable bar is regulated by a set screw to
vary the position of the jacks and sinkers according to the size of stitch 2
or loop required.
Seventhly. Improved self-acting presser loopers," porte fils," with two
movements, that is to say, one for the drawing in obtained by winding a
chain on a pulley on the cam shaft, and the other produced by an
eccentric or other equivalent.
Eighthly. Driving the loopers by a variable friction motion. The rod
moved by the chain above referred to carries a plate, which is held by
friction and acts on a tappet fixed to the bar to which the thread guides
are connected.
Ninthly. An improved needle bar actuated by cams on a cam shaft;
this needle bar is in front of the machine, and is supported by two elbow
levers actuated by the cam shaft.
Tenthly. Giving a lateral motion to the cam shaft by means of a
lever and tappets; this lateral motion brings the cams to one side of the
levers on which they act, so that the cam shaft may revolve without 3
actuating them during the contraction of the fabric.

page_text: Eleventhly. The arrangement of the needle holders "porte poinçous,"
for making the stitches and for diminishing along the selvage. The
needles holders are divided into three sets; one set moves horizontally
for the selvages, another set is for the body of the fabric, and the
remainder are connected to an axle to allow them to rise and fall.
Twelfthly. The mode of taking up alternately by means of a pulley
and parts actuated thereby; this pulley has a recess in which slides a
bowl connected to the taking-up chain. The bowl is moved every
second revolution of the cam shaft by a shot bolt connected to one arm
of the pulley.
Thirteenthly. An improved apparatus for effecting the winding up
and the stripping of the fabric; this apparatus consists of a piece on
which the fabric is wound, and of a set of needles by which the fabric
is carried forward.
Lastly. The arrangement of two needle bars to produce hems on the
selvages; one of these bars is provided with needles having flexible
points, the other has jointed hooked needles; both these sets of needles
have eyes.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Bernoulli Barlow in the Great Seal Patent
Office on the 27th April 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
BERNOULLI BARLOW, of Manchester, in the County of Lancaster, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of October, in the
year of our Lord One thousand eight hundred and sixty-nine, in the
thirty-third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Henry Bernoulli Barlow, Her special
Licence that I, the said Henry Bernoulli Barlow, my executors, adminis-
trators, and assigns, or such others as I, the said Henry Bernoulli Barlow,
my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain

page_text: and Ireland, the Channel Islands, and Isle of Man, an Invention for
"CERTAIN IMPROVEMENTS IN KNITTING MACHINES," a communication to me
from abroad by Edouard Tailbouis and Ambroise Renevey, both of
Paris, in the Empire of France, Merchants, upon the condition (amongst
others) that I, the said Henry Bernoulli Barlow, my executors or
administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Bernoulli Barlow, do hereby
declare the nature of the said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement (that is to say):
These improvements relate more particularly to certain arrangements
and new combinations of machinery already employed in the manufacture
of knitted looped fabrics.
These improvements consist in the united action of the sinkers and
needles for producing with speed and facility all kinds of knitted articles
of superior quality, also in the particular arrangements of the following
instruments, namely:-A divided presser composed of bent steel blades,
each blade pressing on one needle; the pressers or blades serve also as
a sley for dividing the sinkers; this presser can be fixed or movable and
placed in front or behind the sinkers, the pressers when fixed are applied
to a fixed jack bar or a fixed knocking over bar. A fixed knocking
over bar, on which is fixed a brass bar cut and divided and serving as a
sley for the sinkers to move in. A movable needle bar having a double
action, vertical and horizontal, simultaneous with the motion of the
sinkers. A sinker bar on which is fixed a brass bar cut or divided to
hold the lead sinkers or dividers. The jack sinkers are rivetted in the
jack heads, they can also be arranged so as to be moved by the jacks
without rivets. The sinkers move in sleys or dividers placed above and
under the needles. The jacks have each a bent or cramped spring.
soldered in their tails to hold them in position before and after the
drawing of the loops, and at the head of each jack is rivetted a check to
hold the rivet for the jack sinker. The slur boxes are disposed on their
bar above the jacks in which the slur cock heads are movable on the

page_text: slur boxes to obtain with facility variable lengths of loops for the working
of different kinds of material and to obtain with facility slack courses.
The thread carriers have a double motion in their boxes, a horizontal
motion during the drawing of the loops, and a vertical motion during the
dividing and the knocking over of the work. The vertical motion of the
thread carriers produces the tightening of the thread for the selvages
automatically. The vertical motion of the thread carriers is obtained
by means of an eccentric actuating a grooved bar placed under the
thread carrier bar in which they work during the formation of the loops;
the arms supporting this grooved bar hold also a bar or steel blade
which supports the needles during the drawing of the jacks. The
particular arrangement of the sinkers with arches or throats allows the
work to begin without setting on and to work without a weight. The
sinkers being held in their position by sleys or dividers placed above
and under the needles, all the operations of the machine are insured
and the greatest speed obtained, and at the same time the work produced
is of superior quality.
The particular arrangement of the narrowing bar actuated by a
suitable mechanism enables the machine to produce a complete stocking
from the welt to the end of the toe.
It will be remarked in the following description that the sinkers
have only a vertical motion, the pressers are fixed, the thread carriers
have a slight vertical motion during the dividing of the loops, and the
needles have a double motion, vertical for pressing, and horizontal for
knocking over. Although the Drawing indicates the sinkers in a vertical
position and the needles in a horizontal position, these positions can be
varied by giving suitable inclinations to the various parts.
And in order that these improvements may be better understood I will
refer to the various Figures in the accompanying Sheet of Drawings.
Figure 1 is a transverse section of the improved knitting machine;
Figures 2 and 3 indicate a front view and a side view of the narrowing
point bar and the mechanism to produce the contraction of the fabric;
Figures 4 and 5, and 4 and 5' shew in detail the narrowing point
holders; Figures 6 and 7 shew a front and side view of the thread
carriers fixed on their bar; Figures 8 and 9 represent in detail the
mechanism which produces and regulates the narrowing; Figures 10
and 11 shew the slur boxes; Figures 12 and 13 indicate a new
arrangement of the drawing apparatus; Figures 14 and 15 represent

page_text: the running on bars; Figures 16 and 17 represent the arrangement of
the point holders for widening.
The machine is composed of two side frames A held together by
suitable stays or tie pieces. B is the needle bar in which the needles
are fixed, which is held by axles behind the bar and swivels on the ends
of the levers C which oscillate on the shaft c; on the shaft c is fixed a
lever with an antifriction bowl c¹ which is actuated by the knocking
over cam D fixed on the cam shaft d. The motion produced on the
needle bar by the cam D is horizontal, and effects the knocking over of
the work; E is a lever fixed directly on the needle bar at right angles
with the needles, holding an antifriction bowl e at its lower end, and
actuated by the cam F which imparts to the needle bar B a vertical
oscillating motion from the axles on the ends of the lever C for producing
the pressing of the needles by the fixed presser b; G is a fixed divider
jack bar in which are placed the jacks g which oscillate on the jack
wire passing through them, and to the fixed combs or sleys in the
bars G are fixed the pressers b. In the heads of the jacks are rivetted
the jack sinkers a, which are guided by the fixed pressers b above the
needles, and by the cut brass bar placed below the needles on the
fixed knocking over bar. The lead sinkers are placed in the cut brass
bar fixed on the bar H, which is held in position by suitable pieces fixed
on the angle bar h. The whole of these pieces fixed on the anglo
bar oscillate on the axis of the jack wire for producing the vertical
motion of the lead sinkers a¹; this motion is produced by means of an
articulated lever I actuated by the cam i and connected to the angle
bar by the connecting lever I'. h is a bar fixed on the angle bar by
supports to bear on the springs of the jacks to hold them in suspension
during the drawing of the jacks; His a bar to limit and regulate the
position of the jacks in their motion upwards; J is the falling bar to
regulate the motion of the jacks downwards; and j a set screw to
regulate the position of the falling bar. The slur box and slur cock L
move on the upper tie bar K of the machine. To obtain slack courses
the slur cock and the falling bar are moved downwards so that the jack
sinkers fall lower than for the ordinary loops. This result is obtained by
a bar sliding over the slur cocks, which is represented in Figures 10 and
11, which shew the arrangement of the slur cock L in the slur box L'.
The slur box is held in its position by a bar let in the groove in the
tie bar K, in which it slides alternately to the right and left. The length
of the bar is regulated according to the number of the slur cocks required

page_text: for the number of divisions in the machine. On the bar 7 or slur box
bar let in the tie bar K are fixed the friction pieces which actuate the
two series of thread carriers. At the upper part of the slur cock, sce
Figure 10, is a projecting piece, in which is placed a regulating screw m
which bears on a spring m¹ placed on the slur box L', so that the slur
cock is held in its position against the inclined plane of the bar M,
which is moved casily from right to left by the lever M. The regu
lating bar M is guided on the slur boxes by screws and extends to each
slur cock so as to regulate by the inclined planes all the slur cocks at
the same time for producing the slack courses.
Figure 6 represents the thread carrier bar with the thread carriers,
and the position of the thread carrier bar for the heels, which is let
in the groove of the thread carrier bar; also the narrowing racks with
their accessories.
A is the thread carrier bar; B, the thread carrier for the leg part
and right side of the heel of the stocking; D is the connecting bar of
the thread carriers; E³, a picce for guiding the thread carriers in their
horizontal motion; F, stop for the thread carriers faced with leather;
G, thread carrier ends, with double cranks for making French toes;
H, bar connecting the thread carriers for the heels; I, stop on the
right side of the connecting bar of the thread carriers for the heels;
3, narrowing racks; K², holder of the thread carrier connecting bar;
L, retaining catch of the narrowing racks; M², catch of the narrowing
racks jointed to the lever N, which has varying projections actuated by
the lever O, and serving to actuate the narrowing racks in its advancing
motion one needle during the drawing of the jacks, and two needles
during the operation of narrowing. The lever O is fixed on the
shaft P actuating the lever N°.
The bar of the thread carriers for the heels is let in the groove of
the thread carrier bar. The thread carriers for the heels arc movable,
and they are placed on the left side of the work. When they are not at
work they are removed upwards out of the groove of the bar which
gives them their vertical motion; by this means their action ceases
till they are required to work.
To make the heels of the hose or stockings I begin by placing in
position a stop for the thread carrier fixed on the upper tie bar K; this
stop is for the inside selvage of the right side of the heel. To make the
left side of the heel the thread carriers for the heels are moved down-

page_text: wards and placed in the groove of the bar which actuates them; they
are then placed opposite the left side selvage of the work; the friction
piece is then placed in position, which actuates them during the drawing
of the jacks. The stop I² of the thread carrier bar for the heels is fixed
in the groove, see Figure 6, on the right side, in which works the thread
carrier bar for the heels.
The narrowing point bar is composed of an angle bar N, see Figures
1 and 2, in which is cut a groove to hold the point holders in their
position on the angle bar. The point holders are not fixed on small
bars, as is usual, but each of them is disposed so as to hold itself in its
position on the angle bar. The small bars passing through them serve
only to hold them at their respective distances, and to guide them in
their action to the right or to the left during the operation for widening
or narrowing. The narrowing points can be actuated independently of
the thread carriers, or in conjunction with them, by the thread carrier
narrowing racks. The narrowing bar is held in its position by means of
the levers N¹, which are fixed on the shaft n, which extends. from end
to end of the machine. The levers N¹ extend below the shaft on which
they are fixed to receive the action of a cam fixed on the cam shaft by
means of the connecting levers n' and n³, on which is fixed an anti-
friction bowl actuated by a suitable cam fixed on the cam shaft d. The
narrowing angle bar is guided in its horizontal motion by a piece N
fixed to the angle bar, and having its guiding point on a piece fixed on
the side of the main frame. The narrowing bar can be placed nearer
to or further from the needles by means of an eccentric f, which is
placed in position by the hand, according to the kind of narrowing
required, that is to say, narrowing near to the selvages or far from the
selvages. The narrowing angle bar with the point holders have only a
horizontal straight motion, and the needles rise up to the points for
taking off the loops during the operation of narrowing. The. point
holders are disposed on the narrowing angle bar, two for each division,
by which are obtained with facility the narrowings or widenings on both
selvages at the same time; they are composed of from forty to fifty points,
which are divided into three distinct series for making the French feet
and toes of stockings, but when they are arranged for ordinary narrow-
ings or widenings they are composed of two series. The eight or ten
points P' on the exterior of the point holders are movable in a horizontal
direction towards the needles; the points P on the interior side of the

page_text: point holders are also movable and articulated on an axle in their
middle, which allows them to rise above or separate from those fixed
by one, two, four, six, or more at a time, at a given moment, according
to the work required; those P placed at the exterior of the point
holders can be moved in advance of the fixed points P by means of a
small lever n', see Figures 2 and 5.
When the narrowings on the selvages are produced the points P¹ are
in their advanced position, see Figure 5', and the narrowings take place
on eight, ten, or twelve needles, or more or less, according to the
position of the point holders, but when the narrowings are produced
far away from the selvages the points P¹ are placed in a line with the
point P, see Figure 5. The point holders are actuated respectively by
the small bars o and o' passing through them. On the ends of each bar
to the right are fixed the narrowing racks, which are held in position by
screw pressure against the pinion q which drives them. The pinion is
fixed on the vertical shaft which passes through the angle bar N, and
holds also a small hand wheel Q below the angle bar, by which the
point holders are replaced in their respective positions after they have
completed the whole of the narrowings. On the axle or shaft of the
pinion q is fixed a bevel wheel R in which work the bevel wheels r
and with their ratchets S and S', which are actuated by the connecting
links and s¹ and cam wheels T and T", see Figures 2 and 3. The bevel
wheel R can be driven by the ratchet levers placed on the vertical shaft
above it actuated by cam wheels placed on a horizontal shaft parallel
with the angle bar, and supported also by the angle bar and connected
directly with the lever V₁ by the last-mentioned arrangement, the same
result is obtained as with the apparatus represented in Figures 2 and 3.
The cam wheels Tand T', which are fixed on the intermediate shaft t, are
moved a portion of a revolution at each revolution of the cam shaft d,
during the operation of the narrowings, which causes the teeth or pro-
jecting parts of the cam wheels T and T' to operate on the levers U and
U which actuate the ratchets S and S¹ by the intermediate connecting
links 8 and 8. The intermittent motion of the shaft t is produced by the
ratchet wheel V actuated by the cam shaft d, at each revolution during
the narrowings by means of the lever V and the ratchet v.
necting links 8 and 8 are easily put out of action when one or the
other is not required for certain kinds of work produced. The ratchet S
is more especially required for making the French foot and toes, which
The con-

page_text: imparts a widening motion to the narrowing points, and the ratchet S
produces the narrowing motion; the ratchet links also serves to give
action to the movable supporting bar X of the articulated narrowing
points. The bar X is held in position on the narrowing angle bar N by
axles, on which it oscillates to give action to the articulated narrowing
points as shown in Figures 4 and 4. At each action of the bar X the
articulated narrowing points p rise above the fixed points or coverers P so
that they do not take the loops, but when the action of the bar X ceases
then the points p act in conjunction with the fixed points P.
The object of the articulated points is to produce two series of nar-
rowings on the same line or row of loops, which result can be obtained
either by two operations consecutively or by one operation alone.
In the last-mentioned case the movable narrowing points instead of
rising above the fixed points act in a horizontal direction, and are moved
away from the fixed points the distance which exists from one point to
another. The various operations above mentioned are more especially
required for producing the French foot with one seam only. When
ordinary narrowings on the selvages are produced the point holders p'
are placed in the position represented in Figure 5' in advance of the
fixed point P.
Figures 4 and 4' represent the mechanism which regulates the action
of the articulated narrowing points. Figures 1, 5, and 5' represent the
point holders pin their position when working in conjunction with the
fixed points P, also their position in advance of the fixed points when
the narrowings on the selvages are produced by the points p'.
Figures 16 and 17 shew the arrangement of the point holders for
producing the widening of the knitted work. A' is a movable piccc, in
which is fixed a bent or crooked point, the stem of which is as much
higher above the fixed points as the point is bent. The eye of the point
is bent so as to fall in a line with the fixed points. The object of this
movable piece with a bent point is to take a loop off the needles of the
course preceding the one on which the narrowing points operate for
widening the work. The loop taken by the bent point serves to fill up
the hole in the work which would be produced by the narrowing points
acting alone when they are moved in an outward direction from the
centre of the knitted work. This movable bent point has an independant
motion on the narrowing angle bar, and when it is not used for filling
up the widened work it works with the narrowing point for producing

page_text: the narrowed fabric. The mechanism which produces the action of the
filling up bent points is so disposed as to act in advance of the fixed
point, and continues its action with them during the operation for
widening the knitted fabric. The apparatus shewn in Figures 8 and 9
which produces and regulates the narrowings also produces and regu-
lates the operation for the widenings. Figures S and 9 represent the
mechanism which produces and regulates the operation for narrowing
by means of giving a lateral or transverse motion to the cam shaft at
the time the narrowings are required; on the cam shaft d is fixed a
cam Z, the face of which acts on the antifriction bowl in the lever Z
when it is actuated by one of the cams E', and is inclined in the opposite
direction to the one represented in Figure 9 when the cam Z acts on
its opposite side, which causes the cam shaft to move sideways and
brings into action another series of cams placed by the side of the
ordinary cams, which are especially adapted for producing the narrow-
ings or widenings. All the operations for narrowing or widening are
produced during one revolution of the cam shaft d after the lateral.
motion has taken place. As soon as the narrowing operations arc com-
pleted the cam shaft returns to its original position and the ordinary.
motions recommence. The time of the lateral action of the cam shaft is
regulated by the series of cams E' fixed on the small shaft e', and should
correspond to the various kinds of narrowings required, either in stock-
ings, pantaloons, or other articles. The small shaft e' is placed at right
angles with the cam shaft d and rather below it, and is moved by hand
for placing in position cither one or the other of the cams E' to act on
the tail of the lever Z according to the kind of narrowing required. The
motion of the shaft e¹ is obtained by the ratchet f', which acts on
any of the ratchet wheels F corresponding with the cams E. The
ratchet is actuated by the lever G₁ and the cam g' fixed on the cam
shaft.
The apparatus represented in Figures 12 and 13 is composed of two
grooved wheels which are fixed on the cam shaft d. In the groove of the
wheels Y are the sliding picces y, to which are attached the drawing
chains passing from the drawing wheels by means of carrier pulleys
to the slur box bar. The ends of the drawing chains which are attached
to the sliding piece y are united by a small cord passing on the drawing
wheel in an opposite direction, and extending from one drawing wheel
to the other placed on the exterior sides of the machine. In one of the

page_text: arms of each drawing wheel are placed small bolts which carry fixed
projecting studs; these bolts are held in position by friction springs 2¹
At the side of the drawing wheel Y is a fixed piece Y', on which is
placed the movable piece which regulates the action of the bolt to
produce the drawing of the jacks. The regulator u causes the bolt to
move in an outward direction to operate on the drawing chain, and tho
fixed piece u with an inclined plane causes the bolt to move in an
outward direction to operate on the drawing chain, and the fixed
picce u with an inclined plane causes the bolt to move inwards to stop
its action on the chain at the finishing of the drawing motion. The
operation of drawing the jacks is produced in about one half of the
revolution of the cam shaft d; during the other half of the revolution
of the cam shaft are produced the subsequent operations of dividing,
_pressing, and knocking over of the fabric. The action of the drawing
wheel on the chain & is produced by the stud of the bolt passing inside
the regulator u on one side of the machine and outside on the other side
of it at each revolution alternately.
Figures 14 and 15 represent a new arrangement of the running-on
bar, which is capable of being applied to all kinds of running on of
knitted work, cither rectilinear or circular, it is composed of a set or
series of needles with beards and eyes or grooves, which are cast in
leads or fixed by other means on the bar B'. The knitted work is first
run on or set on these needles exactly in the same way as if run on the
needles in the knitting machine, then the bar P³, which is composed of
a series of narrowing points P³, is placed in position on the bar B', as
represented in Figure 15, the narrowing points being pressed on the
needles by means of the lever c²; the work on the needles is then passed
from them on to the points by hand. The bar P is then taken off the
axles of the bar B', and placed in position on the needles of the
knitting machine by means of arms or supports D' and e², and the work
is passed from the point on to the needles at one operation by hand.
The supports D³ rest on the needle bar, and the supports c² rest on the
narrowing bar during the operation of passing the work from the points
on to the needles of the knitting machine. It is evident that a series
of each article can be put on the running-on machine at the same time,
according to the number of divisions of the various machines, such
as tops for socks or half hose, the feet of stockings, or any kind of
article in which running-on is necessary.

page_text: The improvements described have reference more especially to new
combinations, arrangements, and adaptations of the principal working
parts of the knitting machine known as "Coltmann's system," but I do
not confine myself exclusively to the means shewn and described, as
those means may be varied without changing the peculiar character of
the Invention; but what I claim more particularly is,-
Firstly. The application of sleys and cut bars placed above and below
the needles to guide the sinkers with arches during their vertical motion,
as described.
Secondly. The application of fixed divider pressers composed of bent
steel blades, one to each needle, which can be placed before or behind
the sinkers and serving as sleys or dividers to the sinkers, as described.
Thirdly. The application of fixed divided or cut bars to hold the
sinkers divided on a fixed knocking-over bar on which repose the tails
of the sinkers, as described.
Fourthly. The combinations and arrangements of parts by means of
which simultaneous motions are given to the needle bar, a vertical
motion for pressing the needles on the fixed pressers b, and a horizontal
motion for knocking over the fabric, as described.
Fifthly. The application of bent springs in the jack tails, each one
being soldered in the tail of the jack, and having its bearing point above
the jack wire, as described.
Sixthly. The arrangement of the slur cocks movable in their boxes,
by means of which variable lengths of loops are obtained and slack
courses produced, as described.
Seventhly. The arrangement of the thread carriers which operate
the tightening of the thread for the selvages automatically, as
described.
Eighthly. The arrangement for actuating the thread carriers hori-
zontally during the drawing of the jacks and vertically during the
motions of the machine, as described.
Ninthly. The combination of the narrowing point bar and the me-
chanism by which it is actuated, as described.
Tenthly. The arrangement of the mechanism by means of which a
transverse motion is given to the cam shaft d for obtaining the narrow-
ings and filled up widenings, as described.

page_text: Eleventhly. The arrangement of the movable point holders
p
and p¹
for obtaining narrowings near to the selvages or far from them in the
knitted fabric; also the arrangement of the point holders for obtaining
filled up widenings, as described.
Twelfthly. The arrangement of the drawing wheel especially adapted
to the transverse motion of the cam shaft, as described.
Thirteenthly. The arrangement of the running-on bars represented in
Figures 14 and 15, as described.
And, lastly. The general combinations and arrangements of the
principal working parts of knitting machines, as shewn and described.
In witness whereof, I, the said Henry Bernoulli Barlow, have hereto
set my hand and seal, this Twenty-sixth day of April One
thousand eight hundred and seventy.