IMPROVEMENTS IN KNITTING MACHINES
Year: 1879

page_text: LETTERS PATENT to William Lloyd Wise, of No. 7, Whitehall Place, in the
City of Westminster, for the Invention of " "IMPROVEMENTS IN KNITTING
MACHINES." A communication from abroad by Messrs. Lane and Timaeus
(Dresden Knitting Machine Company), of Löbtau, near Dresden Sazon
PROVISIONAL SPECIFICATION left by the said William Lloyd Wise at the
Office of the Commissioners of Patents on the 6th May 1879.
WILLIAM LLOYD WISE, of No. 7, Whitehall Place, in the City of Westminster.
"IMPROVEMENTS IN KNITTING MACHINES." (A communication from abroad by
Messrs. Lane and Timaeus (Dresden Knitting Machine Company), of Löbtau, near
Dresden, Saxony.)
This Invention relates to certain improvements in the construction of knitting
machines, which may be driven either by hand or by any mechanical power.
The improvements relate to the following parts of knitting machines.
a. To a peculiar arrangement for transmitting the motion to the sledge, which
sledge causes the movement of the needles and of all the other parts.
b. Separating the bed of the needle plates from the frame, in the long sides of
which frame the sledge moves.
c. Constructing the sledge in two parts of equal length and form.
d. A peculiar arrangement for transmitting the movement from the sledge to
the lock.
e. Arranging the lifting bolts and the needles in two separate plates.
f. An arrangement for shifting the lifting bolt plate horizontally and indepen-
dently of the needle plate.
g. A construction or device for shifting the bars, which also keeps the needles,
the lifting bolts, and the spring in their respective positions, by which shifting of
the bars an easy removal of the needles, lifting bolts, or springs out of their seats
is attained.
h. The construction of a horizontal groove or channel at the upper side of the
needle bar for preventing oil spots in the knitted work, and which groove or
channel serves as a guide for the needle lock.
[Price 28.]

page_text: i. The thread app
I. A peculiar thread carrying device or apparatus.
II. A peculiar thread tension device.
III. A peculiar mechanism for changing the threads when knitting with two
threads of different colours, and for putting the non-working thread inwardly in
the round goods.
I now proceed to describe the above improvements with reference to the accom-
panying Drawings.
In the side view of the knitting machine shown on Sheet I., and in the two end
views (showing the knitting machine from two different ends) on Sheet II., the
machine is shown arranged to be driven by any mechanical power.
To the stand a the support 6 is fixed, by which the driving shaft is carried.
This driving shaft receives rotary motion through the pulley c, and the motion is
transmitted to the machine by the pulley d through the pulley e by means of a
rope or strap. Pulley e is fixed on the same shaft with the mitre wheel f, which
wheel however is provided with cogs on about half its circumference only, or even
less than half its circumference.
The two mitre wheels f', f2, are so situated on shaft g. that they receive motion
by the mitre wheel f alternately, so that this motion is transmitted alternately in
one direction by means of the pinion g¹ to the rack g², and in the other direction
by means of the pinion h to the rack h¹. By this arrangement the sledge i (the
two long sides of which carry the racks 92 and h¹ underneath) receives alternate
reciprocating horizontal motion.
As will be seen in the two end views of Sheet II. the stand a carries the machine
frame k, upon which the bed e of the needle plate with the entire upper portion of
the machine is screwed or fixed in any convenient manner.
The frame k is provided with two horizontal prismattically shaped grooves (one
on each side) in which the sledge i works, as may be seen in Figs. 1, 2, 3, on
Sheet IV.; this sledge i is constructed of two parts, each part forming one long
side, the ends of which are bent at right angles. These ends are screwed
together, as shown in plan, Fig. 1, end view, Fig. 2, and side view, Fig. 3 (Sheet
IV.), so as to form a sledge of rectangular shape on plan.
This mode of constructing the sledge will facilitate the adjustment of it in
building as well as in repairing.
In Figs. 1, 2, 3, (Sheet IV.) this sledge is shown as driven by hand by means of 3
a crank in the well known manner. In Figs. 1 and 3 (Sheet IV.) the frame k is
prolonged to the left hand in order to provide for a prolonged bearing or guide k
of the sledge, so that its motion may be more steady.
The transmission of power from the sledge i to the lock m is effected by means
of a bow, the horizontal part of which, n¹, is screwed to the sledge, while its
upwardly bent arms n², n³, work against projections n', n, provided on the upper
surface of the lock m (Sheet V.). By these arms n², n³, the sledge i in its hori-
zontal reciprocating movement works the needle lock m.
This mode of connection
between sledge and lock has for object to avoid any undue strain which may be
created by wear and tear of the guides or grooves of the sledge. Such undue strain
will, when a rigid connection is established between sledge and lock, not only be
injurious to the lock but also to several other parts of the machine, and will cause
quicker wear and tear of the same, and will so influence the working of the needles
that the work to be performed will become irregularly tight or loose.
As shown in Sheets III. and III. in Figs. 3 and 4 (side view), and Fig. 5 (cross
section of the needle plate and of the lifting bolt plate), these needles and lifting
bolts are situated in plates independent of each other. In Fig. 3 the grooves of
plate a' for the lifting bolts correspond with the grooves of plate b¹ for the needless
But, as shown in Fig. 4, the plate a' may be shifted in horizontal direction, so that
the first groove of the lifting bolts does not correspond with the first needle
groove, the former being removed or shifted for certain number of noodle
grooves.

page_text: plan is shown in Fig. 6, Sheet III. Underneath the plate a¹ a horizontal screw c
or shifting the lifting bolt plate one mode of carrying out this
of a certain pitch is situated, going through the nut d¹, which is fastened to the
lower side of the plate a¹. The said screw may be turned by crank e¹, and thereby
the plate a¹ may be shifted horizontally. It is evident that this device for shifting the
plate a¹ is shewn by way of example only, as for instance, the shifting of plate a¹
may be effected by an arm projecting sideways from the said plate; said arm being
bent at its end to a right angle, and this bent part, provided with an anti-friction
roller or bowl, may work within a groove formed in the periphery of a disc.
By giving certain form or curves to said groove the rotating groove will by
means of the said arm cause the shifting of the plate a¹ at the proper time and to
the required extent.
The purpose of shifting this plate al will become evident on a close inspection
of the different positions in Figs. 3 and 4.
In Fig. 3, Sheet III., in which the grooves for the lifting bolts are in corre-
sponding position with the needles grooves, a certain number of springs o¹ and the
corresponding lifting bolts are withdrawn in order to set a corresponding number
of needles at rest.
Such resting of certain needles and lifting bolts is caused by withdrawing the
latter such a distance that the triangle p¹ of the needle lock in its horizontal move-
ment cannot take underneath the bent ends m¹ of the lifting bolts n. In Fig. 3
(where it is assumed a certain pattern is being produced in the goods) the lifting
bolts 1, 2, are shown in working position; 3 and 4 are at rest; 5 and 6 are in
working position; 7 and 8 are at rest; 9, 10, 11, are in working position; 12, 13,
14, are at rest. Therefore the needles 1, 2, 5, 6, 9, 10, 11, will work, whereas 3, 4,
7, 8, 12, 13, 14, will remain at rest when the triangle of the lock travels along.
If now with such positions of the lifting bolts an entire shifting of the lifting
bolt plate is caused, say (as shewn in Fig. 4), for the width of two grooves of the
needle plate, a subsequent shifting of the pattern will be the consequence, because
now the needles 1, 2, 5, 6, 9, 10, and so on, will be set at rest, while needles 3, 4,
7, 8, 11, 12, and so on will come into working position (see Fig. 4, Sheet IIIa).
It is evident that that such shifting may take place after knitting one row of
meshes, or after a certain number of rows of meshes, in regular or irregular order.
With needle plate and lifting bolt plate constructed separately it may happen in
knitting tight meshes that the needles are not driven far enough down their
grooves, so that also the lifting bolts are not driven far enough back clear of the
needle grooves; in this instance if a horizontal shifting of the plate of lifting bolts
should take place, either the bolts would be liable to break or the shifting would
be stopped altogether. Now in order to insure the complete exit of the lifting
bolts from the needle grooves there are provided at both sides of the main triangle p
of the needle lock two supplementary triangles p³, 2, (see Fig. 3a, Sheet III.),
which will insure the complete downward motion of the lifting bolts free from the
needle grooves by pressing at the proper moment against the bent ends of such
lifting bolts. In order that the lifting bolts at the beginning and at the end of the
entire series may (if plate a¹ is shifted horizontally) not be worked by the triangle pl
against the full needle plate, and finding no needle grooves to enter break or cause
other damage in the machine, a number of needle grooves are provided in addition
to the entire knitting width of the machine.
These additional grooves marked 03, 03, 03, 03, (see Figs. 3, Sheet III., and 4, Sheet
IIIa.) are supplied with needles called "dead needles," because they are only pointed
and have no influence whatever in the knitting of goods.
These needles however have bent lower ends m³ like all the other needles in the
machine, so that the upper triangles of the lock may by means of such "dead
needles" cause the withdrawal of the corresponding lifting bolts.
Across the needle plate is a bar q, which with its lower dovetailed part is inserted
into the said needle plate, and may be shifted horizontally in it for a short

page_text: The purpose of this bar is to keep the needles in their grooves, and the position
of the bar is generally such as shown in plan, Fig. 7, Sheet III., or in side views,
Fig. 8, Sheet III. (in which latter view the needle plate is shown in cross section).
Fig. 8 shows clearly that bar q is provided with grooves at its lower surface, which
grooves run parallel with the needle grooves, as shown in dotted lines in Fig. 7.
The position of the bar q in Figs. 7 and 8 is such that the grooves of the bar
upon the parts between the needle grooves. The bar o may be shifted by the button
The small projection u (which
t of the small lever r, which has its fulcrum at s.
stands at right angles to lever r) taking into a slot in the needle plate.
g rest
The shifting of bar q by turning the lever 1 may be seen in Figs. 9 and 10, Fig.
IIIa, and especially in Fig. 10 it will be seen that by such shifting of the bar q the
grooves of the latter will now correspond with the grooves of the plate. In this
position the needles may be easily removed from the grooves in order to be replaced
by new ones when necessary; by a slight turning of the lever r the needle grooves
may be closed again by bar q.
The bars, which are situated across the lifting bolts and the spring, and which
bars keep these parts in their grooves, may be arranged with grooves at their lower
surfaces, as well as with the lever device for shifting the bars a short distance for
the same purpose, as described above with reference to the needle bar.
The bar q, which besides the purpose above mentioned, serves as a guide for the
needle lock during the horizontal movement of the latter, is provided with a dove-
tailed groove q¹, Fig. 5 (Sheet IIIa), at its upper surface, such groove extending over
the whole width of the needle plate, and still further on both sides, in order to lead
the lubricating oil away, which hitherto had very often entered the needle grooves,
and by the up and down motion of the needles been carried to the knitted fabric or
ware, damaging the same.
The thread apparatus of the knitting machine has for its object, in manufacturing
round ware of two threads of different colours, to carry the cne thread, which at
the same time is not used for knitting, around the other thread after the return of
the latter to the thread apparatus, so as to cause the first mentioned thread to be
laid inwardly of the round ware. It is therefore necessary, as will be readily
understood, that both threads at the one end of the knitting machine must be
carried around each other once during the formation of each row of meshes, and
this is effected by the apparatus in combination with the peculiar thread carrying
device of a knitting machine, which I will now proceed to describe.
On Sheet I. the thread carrying device is shown at A, and the thread apparatus
is shewn at B.
On Sheet II., in both end views, the thread carrying device is shown at A, and
the thread apparatus at B.
On Sheet V. part of the thread apparatus is shown in plan at B, and the thread
carrying device in plan at A.
On Sheet VI. the thread apparatus and the thread carrying device are shewn in
full size in side view; and on Sheet VII., Fig. 1, in plan, and Fig. 2 in end view
while on Sheet VIII. several detached views of parts of these apparatus and device
are shown, to which I shall hereafter refer.
The thread carrying device is composed of the following main parts:-
I. The thread carrier proper.
II. The lock for locking and unlocking the thread carrier; this will occur when
the thread carrier enters and leaves the thread apparatus.
III. The driving mechanism.
The thread carrier w of the thread carrying device is shown on Sheet VIII, in
which Fig. 1 is a side view.
Fig. 2 is an end view.
The lock is to be seen on the same Sheet, namely, Fig. 4 is a side view; Fig. 5 is
a ground plan; and Fig. 6 shows the detached
Lank
3

page_text: The
are so formed and constructed that they will fit
together as shown in Fig. 7, Shoet VIII.
In the position of the eccentric a², shown in Fig. 4, Sheet VIII., the thread carrier
is locked to the lock while in the position of the eccentric a² shown in Fig. 7; the
thread carrier may leave the lock if, as shown by Figs. 7 and 13, the thread carrier
has entered the thread apparatus.
In order to unlock the thread carrier when the same has entered the thread
apparatus, the eccentric a³ will be turned at the proper time by a fixed pin u¹ (Figs.
apparatus will enter into the slot of the eccentric a², and will turn the latter from
13 and 14), which by the horizontal movement of the entire thread carrying
the position shown in Fig. 4 into the position shown in Fig. 7.
The eccentric a³ being turned by the fixed pin u¹ will at the return motion of the
thread carrying apparatus (into the reverse position, see Fig. 4) again lock the thread
carrier and lock together.
The thread is threaded into the carrier from above, passes the latter in vertical
direction, and leaves the carrier at the lower part to the needles, as shown in Sheet 7.
The lock and the thread carrier constituting the thread carrying apparatus are carried
and are moved by a bent part 62 (see Figs. 1 and 2, Sheet VII.), the vertical part
of which is prolonged to enter between the two vertical rods c², d², which are fixed
to the needle lock.
Between these rods c², d², the horizontal guide rod e² is situated, upon which the
part b² slides by means of a hole.
For the more perfect guidance of the part 62 a second horizontal guide rod e³ is
rigidly connected with the part 62, this guide rod e³ sliding through holes provided
for this purpose in the two vertical rods c², d².
By this construction the horizontal travelling motion of the needle lock will cause
the thread carrying apparatus (id est, the thread carrier and the lock) to move along
with it over the needles, and to enter partly into the thread apparatus after each
return to the latter, as will be hereafter explained.
It will be seen in ground plan, Sheet V., that the device x, x, for opening the
needles will travel along with the needle lock over the entire needle course, as is
now the case in knitting machines constructed on this principle. This device x, x,
for opening the needles must of course always travel in advance of the thread
carrying device, as will be readily understood by inspection of the ground plan,
Sheet V., in which the parts are shown working in the direction of the arrow.
Therefore at each change in the direction of travel of parts a change must take
place between the position of the needle opening device and thread carrying
device.
To effect this the two vertical rods c², d², are fixed a certain distance apart.
Connected to the rods c², d², is a horizontal rod et (Sheets V. and 7, Fig. 1).
This rod e¹
The object of this pin will be explained
to the thread apparatus a vertical pin z.
when the construction and the working of the thread apparatus are described. I
only remark that a part of this pin is threaded and carries at its upper end a
5 button, so that the pin z can be easily removed from the rod e
rod 1, whose lower conical part is rigidly connected with a horizontal pinion m²;
The thread apparatus is composed, as shown on Sheets I. and II., of a vertical
the prolongation of rod l' underneath this pinion, which prolongation is of nearly
the same diameter as pinion m2 for the purpose hereinafter to be described, is
0 situated within the plate n, and will turn intermittingly within this plate.
Plate n is connected to the needle bed by the iron angle o (see Sheet I.). The bar
or rod carries a horizontal bar p on which the two bobbins y, y', are placed, from
carried to one of the described thread carriers, two of which are in one machine
which bobbins the threads, after passing a tension apparatus on the gallows q', are
15 when knitting with two threads, say, of different colours. Of these two thread
carriers one at a time only will be carried by the thread carrying device over the
neell

page_text: Now for effecting the turning of the two threads, that is to say, in order to
change the relative positions of the two threads to each other, so that the now
knitting throad of the one thread carrier (from the bobbin y') is carried around the
knitting thread of the other thread carrier (from the bobbin y); so that the non-
knitting thread shall always lie inside of the goods or fabric from the last row of 5
meshes to the next row of meshes of the same colour, one complete revolution of
the bar or rod l, that is to say, of the entire thread apparatus including
the two thread carriers, and the working and non-working must be effected each
time before the thread carrying device commences a new traverse to and fro over
the needles. During this revolution of the entire thread apparatus the two thread
carriers will be alternately raised and lowered, and by this raising and lowering
motion of the carriers in combination with the revolution of the complete thread
apparatus the change of position of the threads is completed in such manner that
the non-knitting thread is always situated within or inwardly of the goods or
fabric, while the knitting thread is enabled to continue its work.
I will now proceed to describe the mechanism by which the hereinbefore described
operation is effected.
In Fig. 1, Sheet VII., the driving mechanism of the thread apparatus is shown
in plan. Bar is rigidly connected with the pinion m² above the plate n³, while
the part of this bar underneath the pinion m² is situated within the plate n5 and
may turn within the same. Into this pinion m² takes the pinion o². This is fixed
to the upper end of a vertical spindle turning in plate n³, to the lower end of which
spindle the ratchet wheel p² is fixed.
This ratchet wheel is driven by ratchet wheel segment q² which works as a pawl.
This ratchet wheel segment q2 is fixed upon the trunnion r¹, upon which the fork s¹
is also fixed, so that when the pin z on the rod or bar e¹ (which two parts I have
mentioned above) in its travel with the needle lock takes into the fork s¹, the latter
will be moved part of a circle, which movement is shared by the ratchet wheel
segment. This movement of the ratchet wheel segment q², however, can only be
accomplished by constructing its wreath or outward toothed segment with a spring-
like tendency to one direction, i.e., in a direction toward the centre.
To explain this I refer to Figs. 8, 9, 10, 11, 12, Sheet 8. The ratchet wheel
segment q consists of a plate a³, which, by its hub a', is fixed to the trunnion ¹ of
the fork; on plate a³ the wreath as having ratchet wheel teeth at its outer periphery
is mounted loosely, that is to say, the wreath having two circular pins which take
into the curved slots or grooves a6 and a7 in plate a³. A spring as is fixed with
one end to plate a³, and presses with its other end against wreath wreath a³ so as
to keep it in the outer position; but the wreath a³ may yield so much against
the pressure of the spring as as the pins in the curved grooves or slots will allow.
It will be evident that with such yielding construction the ratchet wheel
segment q² may, in following the movement of the fork s¹ in the direction of the
arrow s, slide over the teeth of the ratchet wheel p2 without moving the latter,
whereas if the fork is moved in the other direction (which will take place if the
needle lock commences its reverse travel) the ratchet wheel segment q² will take
into the ratchet wheel p², and will turn by means of wheel o² and m² the bar 1,
i.e., the entire thread apparatus.
I may mention that if pin z is taken away from bar or rod e' a revolution of the
thread apparatus will not take place, which is necessary when working flat goods
instead of round goods.
During the revolution of the thread device the arms c², d², of the sledge i are in
continuous motion at the end of the traverse either to one direction or the other.
Of course the thread carrying device with the part 62 on the guide bar e must
during this period be at rest. Now to prevent an undue commencement of motion
of the part 62 and consequently of the thread carrying device by the motion of the
guide bar e a gripper 2 will catch behind the nose r on the part 62, and will retain
the latter until the arm d in course of its motion frees the hook or gripper by
striking against a projecting part of this hook or gripper.

page_text: The eug
ounded off for this purpose (see Figs. 9 and 10). I
proceed to describe the entering of the thread carrier into the thread apparatus
and the turning of the thread carrier with the said apparatus.
plan, Fig. 1, Sheet 7, the wheel m² is provided on opposite sides with slots or
vertical
grooves
which are prolonged through the thick part of bar 1, which part
turns within the plate n³. The groove or slot is continued through the plate n
towards the needles. Each groove v, vl, in wheel m² and bar 11 is of such dimensions
that a thread carrier may enter and fill this groove entirely. The thread carrier
with the knitting thread is carried forward by means of the travelling thread
carrying device into the groove v next to the needle. At the moment of its
entrance the fixed pin u¹ will turn the eccentric a² of the lock, and will thereby
open the lock, so that the thread carrier is free from the lock and may turn with
the thread apparatus.
As in the groove v' opposite to the needles the second thread carrier is situated,
which for the time has not been engaged in knitting, it will be evident that both
thread carriers will turn with the thread device.
During this revolution an up and down movement will be imparted to both
thread carriers caused by a groove a cut into that part of plate n which surrounds
bar . This groove is shown in Fig. 16, Sheet 8, which represents a section of
plate n5 in the centre line of the thread apparatus. Into the said groove a³ a sınall
projection w' of the thread carrier (see Fig. 1, Sheet 8) will enter.
Both the thread carriers during their revolution will follow the raising and
falling course of such groove a³, which is of such form that the thread carriers will
at the end of the revolution return to the starting position. It is during this
revolution in combination with the rising and falling movement of the threa
carriers that the change of position of the two threads of the carrier towards each
other takes place, so that the thread not engaged in knitting for the time is always
kept inwardly of the round ware or fabric, as already stated above.
The thread from the bobbins to the thread carrier is led through the thread
tension device, which will now be described with reference to Sheet I. and Sheet
II., Figs. 1 and 2.
In Fig. 1, Sheet II., the apparatus is shown without thread, while in Fig. 2,
Sheet II., the apparatus is shown threaded. In the latter Figure the thread coming
from the bobbin y and through the tension device is shown in position while being
drawn off for knitting, whereas the thread coming from bobbin y' and through the
tension device is shown in position when no strain or pull is laid on this thread.
A horizontal pin y² is traversing through and fixed to the bar l'; this pin carries
the lower ends of the tension wires y³, y4, on opposite sides of bar 1.
These wires are placed on pin y² by a loop, while their upper ends, which also
form loops, have a tendency to move away from the bar . Pin y² is partly
threaded, so that the nuts yo may be screwed on; between these nuts and the lower
ends of the tension wires y", y, spiral springs yo, y', are inserted, so that by means
of the nuts and of the springs the yielding tendency of the tension wires may be
regulated.
To the upper end of the bar l' the gallows q³ is fixed carrying the two loops y³, y³,
projecting downward at its outer ends.
Between these loops and the bar l the plates yo, y", are fixed, each carrying a
thread holding device.
0 at its lower end. The horizontal arm of this lever is pierced vertically. In
This device consists of the projection y and of the small bent lever y¹³ pivoted
following first the thread coming from bobbin y, that is, the thread shown as the
knitting one, the thread is first drawn between the just described thread holding
device, id est, between projection y12 and lever y13, and through the hole in the last
5 wire y³ in an upward direction, thence through loop y' at the end of the gallows g³
mentioned lever. From there the thread passes through the loop of the tension
from inside to outside, and thence in downward direction to the moveable thread
Carrier

page_text: As the pull of the thread goes in the direction of the arrow the upper end of
the tension wire y is drawn toward the bar ", and as long as this pull is prepon-
derating the thread holding device will be open for the passage of the thread.
But when the pull of the thread in the same direction ceases, as shown in the
thread coming from bobbin y¹, then the tension wire, as shown at y', will, by its
outward tendency, move with its upper end away from the bar 1, and the thread
will be caught by the thread holding device owing to the bent lever being drawn
inst the projection.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Lloyd Wise in the Great Seal Patent Office on the 6th
November 1879.
WILLIAM LLOYD WISE, of No. 7, Whitehall Place, in the City of Westminster.
"IMPROVEMENTS IN KNITTING MACHINES." A communication from abroad by
Messrs. Lane and Timaeus (Dresden Knitting Machine Company), of Löbtau, near
Dresden, Saxony.
This Invention relates to certain improvements in the construction of knitting
machines, which may be driven either by hand or by any mechanical power.
The improvements relate to the following parts of knitting machines.
a. To a peculiar arrangement for transmitting the motion to the sledge, which
sledge causes the movement of the needles and of all the other parts.
b. Separating the bed of the needle plates from the frame, in the long sides of
which frame the sledge moves.
c. Constructing the sledge in two parts of equal length and form.
d. A peculiar arrangement for transmitting the movement from the sledge to the
lock.
e. Arranging the lifting bolts and the needles in two separate plates.
f. An arrangement for shifting the lifting bolt plate horizontally and indepen-
dently of the needle plate.
g. A construction or device for shifting the bars, which also keeps the needles,
the lifting bolts, and the springs in their respective positions, by which shifting of
the bars, an easy removal of the needles, lifting bolts, or springs out of their seats is
attained.
h. The construction of a horizontal groove or channel at the upper side of the
needle bar for preventing oil spots in the knitted work, and which groove or channel
serves as a guide for the needle lock.
i. The thread apparatus comprising,-
I. A peculiar thread carrying device or apparatus.
II. A peculiar thread tension device.
III. A peculiar mechanism for changing the threads when knitting with two
threads of different colours, and for putting the non-working thread inwardly in
the round goods.

page_text: I now proceed to describe the above improvements with reference to the accom-
panying Drawings.
In the side view of the knitting machine shewn on Sheet I., and in the two end
views (shewing the knitting machine from two different ends) on Sheet II., the
machine is shewn arranged to be driven by any mechanical power.
To the stand a the support b is fixed, by which the driving shaft is carried.
This driving shaft receives rotary motion through the pulley e, and the motion is
transmitted to the machine by the pulley d, through the pulley e, by means of a
rope or strap. The pulley e is fixed on the same shaft with the mitre wheel f
which wheel however is provided with cogs on about half its circumference only, or
even less than half its circumference.
The two mitre wheels f¹, f³, are so situated on a shaft g that they receive
motion by the mitre wheel f alternately, so that this motion is transmitted
alternately in one direction by means of a pinion g', to a rack g, and in the other
direction by means of a pinion h, to a rack . By this arrangement, the sledge i
(the two long sides of which carry the racks g² and h¹ underneath), receives alternate
reciprocating horizontal motion.
As will be seen in the two end views of Sheet II., the stand a carries the
machine frame k upon which the bed 7 of the needle plate, with the entire upper
portion of the machine, is secured or fixed in any convenient manner.
The frame is provided with two horizontal prismatically shaped grooves (one
on each side) in which the sledge i works, as may be seen in Figs. 1, 2, 3, on
Sheet IV.; this sledge i is constructed by two parts, each part forming one long
side, the ends of which are bent at right angles. These ends are screwed together
as shewn in plan, Fig. 1, end view Fig. 2, and side view Fig. 3 (Sheet IV.), so as to
form a sledge of rectangular shape in plan. This mode of constructing the sledge
will facilitate the adjustment of it in erecting as well as in repairing.
In Figs. 1, 2, 3 (Sheet IV.), this sledge is shewn as driven by hand, by means of
a crank in the well known manner, as shewn in Figs. 1 and 3 (Sheet IV.); the
0 frame k is prolonged to the left hand in order to provide for an elongated bearing
or guide for the sledge, so that its motion may be more steady.
The transmission of power from the sledge i to the lock m, is effected by means
of a bow, the horizontal part of which n' is screwed to the sledge, while its
upwardly bent arms n², n³, abut against projections n¹, n, provided on the upper
5 surface of the lock m (Sheet V.). By means of these arms n², m³, the sledge i in its
horizontal reciprocating movement works the needle lock m
This mode of con-
of plate al for
But as
nection between sledge and lock, has for object to avoid any undue strain which
may be created by wear and tear of the guides or grooves of the sledge. Such
undue strain will, when a rigid connection is established between sledge and lock,
0 not only be injurious to the lock, but also to several other parts of the machine, and
will cause quicker wear and tear of the same, and will so influence the working of
the needles that the work to be performed will become irregularly tight or loose.
As shewn in Sheet III., in Figs. 3 and 4 (side views), and Fig. 5 (cross section of
the needle plate and of the lifting bolt plate), these needles and lifting bolts are
5 situated in plates independent of each other. In Fig. 3, the grooves
the lifting bolts correspond with the grooves of plate b. for the needles.
shewn in Fig. 4, the plate a' may be shifted in horizontal direction, so that the
first groove of the lifting bolts does not correspond with the first needle groove, the
former being removed or shifted for a certain number of needle grooves. As to the
50 device for shifting the lifting bolt plate, one mode of carrying out this plan is shewn
in Fig. 6, Sheet III. Underneath the plate a¹ a horizontal screw c¹ of a certain
pitch is situated, working in the nut d', which is fastened to the lower side of the
plate a¹. The said screw may be turned by the crank el, and thereby the plate a¹
55 is shewn by way of example, only, as for instance, the shifting of plate a' may be
may be shifted horizontally. It is evident that this device for shifting the plate a'
effected by an arm projecting sideways from the said plate, said arm being bent at

page_text: its end to a right angle, and this bent part provided with an anti-friction roller or
bowl may work within a groove formed in the periphery of a disc.
By giving certain forms or curves to the said groove the rotating disc will, by
means of the said arm and roller, cause the shifting of the plate a' at the proper
time and to the required extent.
The purpose of shifting this plate al will become evident on a close inspection of
the different positions in Figs. 3 and 4.
In Fig. 3, Sheet III., in which the grooves for the lifting bolts are in corre-
sponding position with the needle grooves, a certain (number of springs o', and the
corresponding lifting bolts, are withdrawn, in order to set a corresponding number
of needles at rest.
Such rosting of certain needles and lifting bolts is caused by withdrawing the
latter such a distance that the triangular piece p' of the needle lock in its horizontal
movement cannot take underneath the bent ends m' of the lifting bolts n.
In Fig. 3 (whero it is assumed a cortain pattern is being produced in the goods)
the lifting bolts 1, 2, are shown in working position, 3 and 4 are at rest, 5 and 6
are in working position, 7 and 8 are at rest, 9, 10, 11 are in working position, and
12, 13, and 14 are at rest. Thoreupon the noodles 1, 2, 5, 6, 9, 10, 11, will work,
whereas 3, 4, 7, 8, 12, 13, and 14 will romain at rest when the triangular piece pl
of the lock travels along.
If now with such positions of the lifting bolts an entire shifting of the lifting bolt
plate is caused, say (as shown in Fig. 4) for the width of two grooves of the needle
plate a, subsequent shifting of the pattern will be the consequence, because now the
noedlos 1, 2, 5, 6, 9, 10, and so on will be set at rest, while needles 3, 4, 7, 8, 11, 12,
and so on will come into working position (see Fig. 4), Sheet III. It is evident
that such shifting may take place after knitting one row of meshes, or aftor a certain
number of rows of meshes, in regular or irregular order.
With the needle plate and lifting bolt plate constructed separately it may happen
in knitting tight meshes that the needles are not driven far enough down their
grooves, so that also the lifting bolts are not driven far enough back clear of the
needle grooves; in this instance if a horizontal shifting of the plate of lifting bolts
should take place, either the bolts would be liable to break or the shifting would be
stopped altogether. Now in order to insure the complete exit of the lifting bolts
from the needle grooves there are provided at both sides of the main triangular
piece p¹ of the needle lock two supplementary triangular pieces p³, p³, (see Fig. 3º),
Sheet III., which will insure the completo downward movement of the lifting bolts
free from the needle grooves by pressing at the proper moment against the bent
ends of such lifting bolts. In order that the lifting bolts at the beginning and at
the end of the entire series may (if plate a¹ is shifted horizontally) not be worked
by the triangle p¹ against the full needle plate, and finding no noedle grooves to
enter break or cause other damage in the machine, a number of needle grooves are
provided in addition to the entire knitting width of the machine.
These additional grooves, marked o", 0, 0, 0, (see Figs. 3 and 4, Sheet III.), are
supplied with needles called "dead needles," because they are only pointed, and
have no influence whatever in the knitting of goods. These needles however have
bent lower ends m³ like all the other needles in the machine, so that the upper
triangular pieces of the lock may by means of such "dead needles" cause the with-
drawal of the corresponding lifting bolts.
Across the needle plate is a bar q, which with its lower dovetailed part is inserted
into the said needle plate, and may be shifted horizontally in it for a short distance.
The purpose of this bar is to keep the needles in their grooves, and the position
of the bar is generally such, as shewn in plan, Fig. 7, Sheet III., or in side view,
Fig. 8, Sheet III. (in which latter view the needle plate is shown in cross section).
Fig. 8 shows clearly that the bar q is provided with grooves at its lower surface,
grooves run parallel with the needle grooves, as shown in dotted lines in Fig. 7.
The position of the bar q in Figs. 7 and 8 is such that the grooves of the bar a rest
which
g

page_text: up
ure grooves. The bar q may be shifted by the
(which is joined at right angles to lever ) taking into a slot in the needle plate.
button t of the small lever r, which has its fulcrum at 8, the small projection u
The manner of shifting the bar q by turning the lever r may be seen in Figs. 9 and
the bar
the grooves of the latter will now correspond with the grooves of the
plate. In this position the needles may be easily removed from the grooves in
order to be replaced by new ones when necessary. By a slight turning of the lever r
the needle grooves may be closed again by the bar q
The bars which are situated across the lifting bolts and their springs, and which
bars keep these parts in their grooves, may be arranged with grooves in their lower
surfaces, as well as with the lever device for shifting the bars a short distance for
the same purpose, as described above with reference to the needle bar.
The bar q, which, besides the purpose above mentioned, serves as a guide for the
needle lock during the horizontal movement of the latter, is provided with a dove-
tailed groove q¹, Fig. 5 (Sheet III.), on its upper surface, such groove extending over
the whole width of the needle plate, and still further on both sides, in order to lead
the lubricating oil away, which hitherto has very often entered the needle grooves,
and by the up and down motion of the needles been carried to the knitted fabric
or ware, thereby damaging the same.
The thread apparatus of the knitting machine has for its object, in manufacturing
round ware of two threads of different colours, to carry the one thread, which at the
same time is not used for knitting, around the other thread after the return of the
latter to the thread apparatus, so as to cause the first mentioned thread to be laid
inwardly of the round ware. It is therefore necessary, as will be readily under-
stood, that both threads at the one end of the knitting machine must be carried
around each other once during the formation of each row of meshes, and this is
effected by the apparatus in combination with the peculiar thread carrying device
of a knitting machine, which I will now proceed to describe.
On Sheet I. the thread carrying device is shewn at A, and the thread apparatus
is shewn at B.
On Sheet II., in both end views, the thread carrying device is shewn at A, and
the thread apparatus at B.
On Sheet V. part of the thread apparatus is shewn in plan at B, and the thread
carrying device in plan at A.
On Sheet VI. the thread apparatus and the thread carrying device are shewn in
full size in side view, and on Sheet VII., Fig. 1, in plan, and Fig. 2 in end view,
while on Sheet VIII. several detached views of parts of these apparatus and device
are shown, to which I shall hereafter refer.
The thread carrying device is composed of the following main parts:-
I. The thread carrier proper.
II. The lock for locking and unlocking the thread carrier; this will occur when
the thread carrier enters and leaves the thread apparatus.
III.. The driving mechanism.
The thread carrier w of the thread carrying device is shewn on Sheet VIII., in
which Fig. 1 is a side view.
Fig. 2 is an end view.
Fig. 3 is a sectional plan.
0 is a ground plan, and Fig. 6 shews detached the front plate of the lock. The thread
The lock is also shewn on the same Sheet, in which Fig. 4 is a side view, Fig. 5
carrier and lock are so formed and constructed that they will fit together, as shewn
in Fig. 7, Sheet VIII.
In the position of the eccentric a², shewn in Fig. 4, Sheet VIII., the thread carrier
s locked to the lock, while in the position of the eccentric a shewn in Fig. 7, the
55 thread carrier may leave the lock if, as shewn by Figs. 7 and 13, the thread carrier
has entered the thread apparatus. In order to unlock the thread carrier when it
has entered the thread apparatus, the eccentric a³ will be turned at the proper

page_text: time by a fixed pin u¹ (Figs. 13 and 14), which by the horizontal movement of
the entire thread carrying apparatus will enter into the slot of the eccentric a², and
will turn the latter from the position shewn in Fig. 4 into the position shewn in
Fig. 7.
The eccentric a² being turned by the pin u¹ will at the return motion of the
thread carrying apparatus (into the reverse position, see Fig. 4), again lock the
thread carrier and lock together.
The thread is threaded into the carrier from above, passes through the latter in a
vertical direction, and leaves the carrier at the lower part, passing to the needles as
shewn in Sheet I.
The lock and the thread carrier constituting the thread carrying apparatus are
carried and are moved by a bent part 62 (see Figs. 1 and 2, Sheet VII.), the
vertical part of which is prolonged to enter between the two vertical projections.
c², d², which are fixed to the needle lock.
Betweeen these projections c², d², the horizontal guide rod e² is carried upon
which the part 62 slides or is guided.
For the more perfect guidance of the part 62 a second horizontal guide rod e³ is
rigidly connected with the part 62; this guide rod e³ sliding through holes provided
for this purpose in the two vertical projections c², d². By this construction of
apparatus the horizontal travelling motion of the needle lock will cause the thread
carrying apparatus (id est, the thread carrier and the lock) to move along with it
over the needles, and to enter partly into the thread apparatus after each return to
the latter as will be hereinafter explained.
It will be seen in plan, Sheet V., that the device x, x, for opening the needles will
travel along with the needle lock over the entire needle course, as is now the case
in knitting machines constructed on this principle. This device x, x, for opening
the needles must of course always travel in advance of the thread carrying device,
as will be readily understood by inspection of the plan view, Sheet V., in which the
parts are shewn working in the direction of the arrow. Therefore at each change
in the direction of travel of parts, a change must take place between the position of
the needle opening device and thread carrying device.
To effect this the two vertical projections c², d², are fixed a certain distance apart.
Connected to the projections c2, d2, is a horizontal bar e¹ (Sheets V. and VII.,
Fig. 1). This bar e is prolonged towards the thread apparatus, and carries at this
end a vertical pin or screw 2. The object of this pin or screw will be explained
when the construction and the working of the thread apparatus are described.
I only remark that a part of this pin or screw is threaded and carries at its upper
end a button, so that the said pin or screw z can be easily removed from the bar et.
The thread apparatus is composed as shewn on Sheets I. and II., of a vertical
rod l¹, whose lower conical part is rigidly connected with a horizontal pinion m²; the
prolongation of rod l underneath this pinion, which prolongation is of nearly the
same diameter as pinion m², for the purpose hereinafter to be described, is situated
within the plate 5, and will turn intermittingly within this plate. Plate n³ is
connected to the needle bed by the iron angle o (see Sheet I.). The vertical rod l
carries a horizontal bar p on which the two bobbins y, y', are placed, from which
bobbins the threads after passing a tension apparatus on the gallows qs are carried
to one of the described thread carriers, two of which are in one machine when
knitting with two threads say of different colours. Of these two thread carriers
one at a time only will be carried by the thread carrying device over the needles.
Now for effecting the turning of the two threads, that is to say, in order to
change the relative positions of the two threads to each other, so that the non-
knitting thread of the one thread carrier (from the bobbin y¹) is carried around
the knitting thread of the other thread carrier (from the bobbin y), so that the
non knitting thread shall always lie inside of the goods or fabric from the last
row of meshes to the next row of meshes of the same colour; one complete
revolution of the vertical rod ', that is to say, of the entire thread, apparatus,
including the two thread carriers, and the working and non-working thread, must

page_text: he
read carrying device commences a new traverse
to and fro over the needles. During this revolution of the entire thread apparatus
the two thread carriers will be alternately raised and lowered, and by this raising
and lowering motion of the carriers in combination with the revolution of the
complete thread apparatus, the change of position of the threads is completed in
such manner that the non-knitting thread is always situated within or inwardly of
I will now proceed to describe the mechanism by which the hereinbefore
described operation is effected.
In Fig. 1, Sheet VII., the driving mechanism of the thread apparatus is shewn
in plan. The verticle rod is rigidly connected with the pinion m² above the
plate n³, while the part of this rod I underneath the pinion m² is situated within
the plate n³, and may turn within the same; into this pinion m² takes the
pinion o². This pinion o² is fixed to the upper end of a verticle spindle turning in
the plate n³, to the lower end of which spindle a ratchet wheel p² is fixed.
2
This ratchet wheel is driven by a ratchet wheel segment q² which acts as a pawl.
This ratchet wheel segment q² is fixed upon a trunion or axis r¹ upon which a
fork s' is also fixed, so that when the pin or screw z on the bar et (which two parts
I have mentioned above) in its travel with the needle lock takes into the fork 81,
the latter will be moved part of a circle, which movement is shared by the ratchet
wheel segment.
This movement of the ratchet wheel segment q², however, can only be accom-
plished by constructing its wreath or outward toothed segment with a spring like
tendency to one direction, i.e., in a direction towards the centre.
To explain this I will refer to Figs. 8, 9, 10, 11, and 12, of Sheet VIII.
The ratchet wheel segment q² consists of a plate a³, which by its hub at is fixed
to the trunion 1 of the fork s¹ on the plate a³, the wreath a5 having ratchet whee!
teeth at its outer periphery is mounted loosely. This wreath has two circular pins
which take into the curved slots or grooves as and a7 in the plate a³; a spring as is
fixed at one end to plate a³, and presses with its other end against the wreath a³,
so as to keep it in an outward position, but the wreath a³ may yield as much
against the pressure of the spring as as the pins in the curved grooves or slots will
allow.
It will be evident that with such yielding construction the ratchet wheel
segment q² may in following the movement of the fork s¹ in the direction of the
arrow s² slide over the teeth of the ratchet wheel p² without moving the latter,
whereas if the fork s¹ is moved in the other direction (which will take place if the
needle lock commences its reverse travel) the ratchet wheel segment q² will take
into the ratchet wheel p², and will turn by means of wheel o² and m² the bar l', i.e.,
the entire thread apparatus.
I
when
may mention that if the screw or pin z is taken away from the bar or rod et a
revolution of the thread apparatus will not take place, which is necessary
working flat goods instead of round goods.
During the revolution of the thread device the arms or projections c², d², of the
5 sledge i are in continuous motion at the end of the traverse, either to one direction
or the other; of course the thread carrying device with the part be sliding on the
guide bar e² must during this period be at rest.
Now to prevent an undue commencement of motion of the part b, and conse-
quently of the thread carrying device by the motion of the guide bar e, a gripper r
50 will catch behind the nose on the part be, and will retain the latter until the
arm d² in
projecting part of this hook or gueper. The edges of the arm d² are rounded off
for this purpose (see Figs. 9 and 10).
I now
proceed to describe the entering of the thread carrier into the thread
55 apparatus, and the turning of the thread carrier with the said apparatus. As will
be seen in plan Fig. 1, Sheet VII., the wheel m² is provided on opposite sides

page_text: with slots or vertical grooves, which are prolonged through the thick part of the
vertical rod l', which part turns within the plate n". The groove or slot is continued
through the plate n" towards the needles.
Each groove v, vl, in the wheel m² and rod l¹ is of such dimensions that a thread
carrier may enter and fill this groove entirely.
The thread carrier with the knitting thread is carried forward by means of the
travelling thread carrying device into the groove v next to the needle. At the
moment of its entrance the fixed pin u' will turn the eccentric a² of the lock, and
will thereby open the lock, so that the thread carrier is free from the lock, and
turn with the thread apparatus.
may
As in the groove v¹ opposite to the needles the second thread carrier is situated,
which for the time has not been engaged in knitting, it will be evident that both
thread carriers will turn with the thread device. During the revolution an up and
down movement will be imparted to both thread carriers, caused by a groove a
cut into that part of the plate no which surrounds the rod l'. This groove is shewn
in Fig. 16, Sheet VIII., which represents a section of the plate n5 in the centre line
of the thread apparatus. Into the said groove a³ a small projection w₁ of the thread
carrier (see Fig. 1, Sheet VIII.) will enter.
Both the thread carriers during this revolution will follow the rising and falling
course of such groove a³, which is of such form that the thread carriers will at the
end of their revolutions return to their starting position.
It is during this revolution in combination with the rising and falling movement
of the thread carriers that the change of position of the two threads of the carrier
towards each other takes place, so that the thread not engaged in knitting for the
time is always kept inwardly of the round ware or fabric, as already stated above.
The thread from the bobbins to the thread carrier is led through the thread
tension device, which will now be described with reference to Sheet I. and Sheet II.,
Figs. 1 and 2.
In Fig. 1, Sheet II., the apparatus is shewn without thread, while in Fig. 2,
Sheet II., the apparatus is shewn threaded. In the latter Figure the thread coming
from the bobbin y, and through the tension device is shewn in position while being
drawn off for knitting, whereas the thread coming from the bobbin y¹, and through
the tension device is shewn in the position obtaining when no strain or pull is laid
on this thread. A horizontal pin y2 passes through, and is fixed to the rod ; this
pin carries the lower ends of the tension wires y³, y, on opposite sides of the rod l.
These wires are placed on the pin y² by a loop, while their upper ends, which
also form loops, have a tendency to move away from the rod 1. The pin y is
partly threaded so that the nuts y may be screwed on; between these nuts and
the lower ends of the tension wires y³, y*, spiral springs y6, y7, are inserted, so that
by means of the nuts and of the springs the yielding tendency of the tension wires
may be regulated.
To the upper end of the rod l' is fixed the gallows q³ carrying the two loops y, y',
projecting downward at the outer ends.
Between these loops and the rod l' the plates yo, y¹¹, are fixed, each carrying
a thread holding device.
This device consists of the projection y12, and of the small bent lever y¹s pivoted
at its lower end. The horizontal arm of this lever is pierced vertically. Following
first the thread coming from bobbin y, that is, the thread shewn as the knitting
one, the thread is first drawn between the just described thread holding device,
id est, between projection y12 and lever y13, and through the hole in the last
mentioned lever; from there the thread passes through the loop of the tension
wire y³ in an upward direction, thence through loop y" at the end of the gallows q
from inside to outside, and thence in a downward direction to the moveable thread
carrier.
As the pull of the thread is in the direction of the arrow, the upper end of the
tension wire y' is drawn towards the rod 2, and as long as this pull is prepon-
derating the thread holding device will be open for the passage of the thread.

page_text: men the pull of the thread in the same direction ceases, as shewn in the
thread coming from bobbin y', then the tension wire, as shewn at y', will by its
outward tendency move with its upper end away from the bar l', and the thread
will be caught by the thread holding device owing to the bent lever being drawn
against the projection.
Having described the nature of the said Invention, and explained in what manner
the same is to be performed or carried into practical effect, as communicated to me
as aforesaid, I would have it understood that what I consider to be novel and
original, and therefore claim as secured to me under the Letters Patent hereinbefore
in part recited is,-
1. The method, substantially as described and illustrated, of imparting recipro-
cating movement to the sledge i by means of a mitre wheel f, constructed and
operating as hereinabove explained.
2. In a knitting machine, constructing the needle plate bed and the frame kin
two separate parts, and providing the horizontal guide for the sledge in the said
frame, substantially as described.
3. In a knitting machine, constructing the sledge in two parts, connected together
as described.
4. In a knitting machine, transmitting the reciprocating movement of the sledge
to the needle lock by the arrangement shewn and described.
5. In a knitting machine, arranging the needles and the lifting bolts and springs
in separate plates, arranged with their longer sides parallel to each other, substan-
tially as described.
6. In a knitting machine, the arrangement substantially as described for shifting
the plate of lifting bolts and springs horizontally and independently of the needle plate.
7. In a knitting machine, combining grooved closing bars with the plates con-
taining the needles, lifting bolts, and springs, substantially as described, so that by
shifting either the bars or the plates (as the case may be) the grooves in the plates
may be opened and the needles, lifting bolts, and springs removed.
8. In a knitting machine, providing in the meedle bar a horizontal channel,
arranged to serve the two fold purpose of guiding the needle lock and conducting
lubricant from the needle grooves to the outside of the machine, substantially as
described.
9. In a knitting machine, the travelling thread carrying device, embodying the
thread carrier and lock, arranged and operating so as during the working of the
machine to be alternately temporarily locked together and temporarily separated
from each other, substantially as described and shewn.
10. In a knitting machine, transmitting motion from the needle lock to the
thread carrying device by means of two arms c², d², between which a part be pro-
jecting downward from the thread carrying device slides with two guide rods e², es,
one of which is fixed between the two arms c, d, and the other to the part b²,
substantially as described.
11. In a knitting machine, the method substantially as described and shewn of
effecting by means of a fixed pin u¹ and eccentric a² the opening of the lock and
consequent freeing therefrom of the thread carrier on the latter entering the thread
apparatus, and the subsequent locking together of the lock and thread carrier at
the beginning of the reverse travel or movement of the thread carrying device.
12. In a knitting machine working with two threads of different colours, the
thread apparatus as shewn and described, which by a pin projecting from a bar
travelling with the needle lock is set in motion after the completion of an entire
row of meshes.
13. The arrangement, substantially as described, for removing the pin referred to
in claim 12, in order to prevent the revolution of the thread apparatus after the
completion of an entire row of meshes.
14. In a knitting machine, the thread apparatus as shewn and described, the
bar 7 and pinion m² of which are provided on opposite sides with two vertical
grooves v, v', for the temporary reception of the two thread carriers w, w'.

page_text: 15. In a knitting machine, the method substantially as described and illustrated
for imparting a rising and falling movement to the thread carrier w, w, by projec
tions w₁ travelling in suitable fixed grooves during the revolution of the thread
apparatus with the two thread carriers.
16. In a knitting machine, the mechanism shewn and described in connection
with the ratchet wheel segment q² and its yielding wreath for imparting one
revolution to the thread apparatus and the two thread carriers after the thread
carrying device has come to rest at the end of its course.
17. In a knitting machine, the thread holding and tension device, as described
and shewn, above the bobbins.
18. In a knitting machine, the working in combination of the thread carrying
device which travels in both directions above the needles and the thread apparatus,
substantially as and for the purpose specified.
19. In a knitting machine, providing and arranging grooves with dead needles
in the needle plate, as and for the purpose specified.
20. In a knitting machine, providing the needle lock with a supplementary
triangle, as shewn and described, for insuring the complete return or backward
movement of the lifting bolts into their grooves.
21. The combination of parts constituting the improved knitting machine,
constructed, arranged, and operating as shewn in and described with reference to
the accompanying Drawings.
In witness whereof, I, the said William Lloyd Wise, have hereunto set my
hand and seal, this Sixth day of Novenber, in the year of our Lord One
thousand eight hundred and seventy nine.

page_text: a'
B'
a