IMPROVEMENTS IN KNITTING MACHINES
Year: 1881

page_text: LETTERS PATENT to Lorentz Albert Groth, K.G.V., Civil Engineer and
Proprietor of the Scandinavian Patent Office, under the Firm of L. A. Groth
and Co., 97, Finsbury Pavement, London, E.C., for an Invention of
vination from alvond
PROVISIONAL SPECIFICATION left by the said Lorentz Albert Groth at
the Office of the Commissioners of Patents on the 23rd December 1881.
"
LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Proprietor of the
Scandinavian Patent Office under the Firm of L. A. Groth & Co. 97 Finsbury
Pavement London E.C. IMPROVEMENTS IN KNITTING MACHINES." A communi-
cation from abroad by G. T. Grosser of Markersdorf near Burgstadt in the German
Empire.
These improvements relate to the application of pattern apparatus to knitting
machines and are of the following character.
The pattern forming apparatus is applied to a 4 cam machine arranged for back
laid work.
On the slide of the machine is fixed a piculiarly formed piece, one part of which
sérves to raise levers which turn a shaft say to the right, and another part serves
to hold a bar or rail in its lowest position during the knitting and to prevent the
rotation of the shaft connected by arms with the aforesaid rail.
At the end position of the slide the middle point of the aforesaid piece stands
under the rollers of the said levers whereby the shaft is turned say to the right
and a bar connected with a crank is pushed towards the left. A pattern roller is
thereby caused to slide down on an oblique surface and is turned one tooth during
the same by a pawl connected with the last named bar. A retaining pawl
prevents the pattern roller from turning backwards when the bar and the actuating
Price 10/1

page_text: pawl are moved back towards the right. This backward movement and the
firmness of the mechanism is likewise brought about by the peculiarly formed
piece above mentioned because the latter presses with its lower oblique surface
against the corresponding oblique part of the first named bar or rail and presses
the latter down.
While the knitting is going on the peculiarly formed piece slides on the first
named bar or rail and holds the same fast in the lowest position until it runs
under the roller of the lever at the other side of the machine.
In the pattern roller are screwed pins corresponding to the pattern to be
produced. When the second named bar imoves to the right & the pattern roller
is thereby raised, springs which are struck by the pins in the pattern roller and
the needles which rest on them are thus pressed upwards whilst the rest of the
needles remain down.
Of three triangles two are placed high and one low so that the raised needles
stand with their hinder feet opposite the high triangles and the others opposite the
low triangle.
The projection of one of the triangles is drawn back in the cam plate (Schloss-
platte) in order that it should not come in contact with the fect of the raised
needles.
-All-the-side-lifters-of-the.hinder_disposition of needles (Fontour) stand so high,
that the needles from the cam itself (Schloss selbst) are only drawn back into the
catch position, Fangstellung). The needles of the front disposition (Fontour) knit
off twice at each stroke of the slide.
The needles of the hinder disposition (Fontour) on the contrary knit.off only
once at each stroke of the slide.
The knitting off of the needles of the hinder disposition (Fontour) takes place in
such manner that the needles which are drawn down after the passing of the
leading cam until the meshes fall off, remain in the catch position after the passing
of the second cam and on the contrary the needles which remain at first in the
catch position are brought into the lowest position by the passage of the following
cam.
Let us suppose for instance that the cams have moved to the left as one of the
high triangles is drawn back, next the middle part of the left hand cam will push
up all the needles, whereupon the side triangle of the left hand cam brings all the
needles into the catch position.
From this catch position only those needles which have not been raised by the
pattern apparatus are now brought into the lowest position by the triangle whilst
the needles raised by the pattern apparatus remain standing in the catch position.
Hereupon all the needles are pushed into the highest position by the following
cam, and are brought back into the catch position by the side lifter.
From this catch position, the needles pushed by the. pattern apparatus are now
pushed into the lowest position by the other high triangle.
The machine has, like all other machines of the same kind two thread guides
of which always one and the same precedes.
If we suppose the preceding guide has a red thread and the following one a
black one, the needles not raised by the pattern apparatus will always form black
meshes because they at first knit off always red meshes, and the raised needles,
because they knit off when the black thread is laid in always form black meshes.
The process of working is as follows,
Before the termination of each stroke of the slide the following triangle is
brought out of working position and the preceding one is brought into working
position and the pattern roller is turned one tooth in the manner described above,
at the beginning of the next stroke of the slide the pattern roller with its pins
presses against certain of the beforementioned springs whereby the needles resting
on them are raised and their hinder feet brought to the same level with the high
triangles.

page_text: The triangle now passes over all the needles as it is put out of action at the end
of the previous stroke of the slide without touching the feet of the needles.
The middle part of the leading cam presses against the upper feet of all the
needles and pushes them into the highest position. Hereupon the needles aro
drawn back into the catch position by a side triangle and the thread guide lays in
the red thread. The needles are now seized by their lower feet and drawn back
by the low triangle, as they were left down by the pattern apparatus, until the
double meshes laying on them fall off. As these needles at the last stroke seized
the black thread, and had laid the red as loops on the tongues the red thread falls
outwards from the double mesh and the black thread inwards. The needles of the
back now have all thrown off their black meshes. The middle part of the second
can now brings the needles into the highest position and while the side part brings
back the latter (the needles) into the catch position tlie black thread is laid in by
its thread guide and is seized by all the needles. Finally one of the high triangles
draws certain of the needles down until the double meshes on them fall off. These
double meshes occur against those of the needles which have the black thread in
front and the red thread behind because first the black and secondly the red
thread of the double mesh has been laid in. The needles of the back row have all
let their red meshes fall.
When the travel of the slide is finished the pattern apparatus will raise other
needles corresponding to the pattern and other needles will knit black meshes
while the remaining needles produce red meshes.
The needles of the front row would all be in the lowest position between the
cams if no thread were laid in them but it will be understood that the needles of
the back and front rows are connected together by the loops of yarn and the
needles of the front row are drawn upwards by the knitting needles of the back
row until nearly in the catch position. In order that these needles shall not be
again drawn down by the leading side parts in running in the cam, which would
often cause a tear or at all event a distortion of the meshes, the side parts of the
front cam are changed back out of the lowest into the catch position for which
purpose the construction of cam hereafter described is employed.
If the pawl work is arranged to operate the pattern roller always with the same
pins, various patterns may be produced by displacing the pattern roller.
In a construction of the cam applied to both sides of the machine the front cam
is so arranged that a side part is pushed automatically by the meeting of the
second above named bar with a screw whilst another part remains in the highest
position.
At some time as the first named side part is raised a middle part is also raised
so high that it stands even with the side parts. The cam passes in this position
over the feet of the needles standing in the catch position without moving the
latter.
By means of this construction of cam it is possible to shift both needle plates
of the knitting machine so far sidewise against one another as the length of the
loops hanging on the front needles will allow, for as the one arrangement of
needles (Fontour) does not work and therefore its loops are not drawn down by
the displacement of the following turn of the machine, the whole length of the loop
can be employed.
Further a greater displacement and new patterns can be produced by knitting
several rows of work with one arrangement of needles (Fontour) while the other
arrangement of needles (Fontour) stands up and holds its loops. These rows of
work are independent of the needles of the front row and as many needles cau be
displaced towards the side as there are rows of meshes knitted on one side.
The arrangement of the cam which renders possible the simultaneous raising of
one side & of the middle part, is as follows,
A projection of the middle part is embraced by studs on a bar and is thereby
compelled to take part in the movements of the said bar so soon as the slide

page_text: comes into the outermost position and the bar strikes a fixed point with its bent
up horns.
If no derangement of the cam takes place the slide is returned before the bar
strikes the fixed piece.
When in edge knitting (Kandstricken) the needles of the back rows are drawn
down through the outer parts of the edge-cam, the last part of their stroke, these
outer parts must draw up the corresponding needles of the front row by means of
the loops of yarn which connect the back and front rows of needles, whereby the
yarn is strained and the work is very much distorted. In order to avoid this,
small triangles are applied to the back cam which triangles are usually drawn back
into the cam plate and placed out of action, but in edge knitting are brought into
working position and push up those needles, the neighbouring needles of which are
drawn down by the outer parts of the edge cam whereby the loops of yarn are
liberated.
A mechanism is arranged for adjusting the side lifters which likewise allows the
selfacting side lifters to stand fast and loose. The side lifters are connected by
screws with bars let into the cam box.
Pins or screws fixed in the said bars take into the oblique slits of another bar
which is guided on square pins screwed into the cam box and held by headed
Screws. By the striking-of-the-last-named-bar-against-the-stop,-one-side-lifter-is-
placed up and the other one down for example the leading one may be placed up
and the following one down, or this bar may be so arranged that the following
side lifter is pushed up and the leading one down.
If one of the side litters is not displaced the connections of the corresponding bar
with the other bar is interrupted by the removal (Entferuing) of the pin.
In another construction of cam the highest point which is reached by the self-
acting derangement of the side triangle can be put in at will, without the necessity
of displacing the stop.
The bar is connected with the side lifters of the cam by double levers and effects
by striking against a fixed piece, a displacement of the said side lifters.
The pins or screws which connect the said levers with the bar are fixed on a
small adjustable plate in such way that by placing a pointer on any stroke of a
seale engraved on the bar the side lifters can be altered into any position from the
highest to the lowest.
In order to leave the needles in this construction of cam over the knocking off
cam (Abshlagkamn) at rest during the required number of turns, the following
arrangements are employed.
While the slide stands to the right a pin is removed from one of the small plates
which pin is for this purpose arranged as a wing screw, the side lifter belonging
thereto is placed fast in the catch position, Hereupon by pushing the slide into
the outer left hand position, one is enabled to push the right hand side lifter into
the catch position-After which the slide is moved towards the right, whereby the
needles are only drawn down into the catch position by the side lifter, and operates
(by pushing the slide into the outermost right hand position) the closing of the
cam so that the middle lifter at the next turn runs over the feet of the elevated
needles and leaves the needles standing in the catch positions.
In order the better to set forth the essence of the Invention it may be well to
refer to processes heretofore used.
1. In reference to the displacement of the needle bed-heretofore the whole
length of the loop has not been employed, because the needles of both arrangements
or dispositions (Fountouren) worked after the displacement and thereby the loops
of the needles of both rows were drawn downwards.
By the construction above described, one row of needles remains at rest in the
catch position after the displacement because the cam runs over the feet of the
needles and the displacement for the first and all other rows can thus be
greater.

page_text: 2. In the production of edge goods, the needles of the front row drawn up by.
the knitting parts of the edge cam have not been drawn down again at the next
movement of the slide the leading slide lifter of the front row stands out of action
and thereby produces a better edge but by the application of the small triangles
hereinbefore referred to the drawing up of the front needles through the back is
avoided and thereby the loops of yarn which lay from the back disposition of
needles (Fontour) towards the needles of the front one are lifted and drawn up in
knitting by means of the front needles, because the above mentioned triangles push
upwards the needles of the front row in proportion, as and at the time when the
knitting triangles of the edge can draw the needles of the back row downwards so
that the yarn is not strained by this manipulation and the meshes are not
distorted.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Lorentz Albert Groth in the Great Seal Patent Office on the
22nd June 1882.
LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Proprietor of the
Scandinavian Patent Office under the Firm of L. A. Groth & Co. 97 Finsbury
Pavement London E.C. "IMPROVEMENTS IN KNITTING MACHINES." A communi-
cation from abroad by G. T. Grosser, of Markersdorf near Burgstadt in the German
Empire.
These improvements relate to the application of pattern apparatus to knitting-
machines and are of the following character.
Figure 1 Sheet 1 shows a front view of the machine. Figure 2 Sheet 1 a plan.
Fig 3 Sheet 2 a side view, Figure 4 Sheet 2 a section on line A B of Figure 2.
-Figure-5-Sheet-2-shows-to-full-size-the-apparatus-for-raising the needles. Figure 6
Sheet 2 shows a back view of the machine with the shaft C broken. Figure 7
Sheet 1 shows the movement of the needles through the cam grooves (Schlosser).
Figure 2 Sheet 1 shows the formation of the loops (Schlingenbildung). The
pattern forming apparatus is applied to a 4-cam machine arranged for back laid
work. On the slide a (Figure 1 Sheet 1 is fixed a peculiarly formed part b (sec
also Figure 6 Sheet 2) one part of which serves to raise the levers h h and thereby
to turn a shaft c say to the right (Figs 3 & 4 Sheet 2) and another part serves
to hold the bar or rail fin its lowest position during the knitting and to prevent
the rotation of the shaft c connected by arms g with the aforesaid rail f-At the
end positions of the slide the middle point of the aforesaid piece b stands under the
rollers of the said levers whereby the shaft c is turned say to the right and
the bar connected with the crank is pushed towards the left (see Figure 3
Sheet 2). A pattern roller is thereby caused to slide down on an oblique
surface and is turned one tooth during the same by the pawl lever m and the
pawl connected with the bar r. A retaining pawl n prevents the pattern
roller from turning backwards when the bar r and the actuating pawl m n are
moved back towards the right. This backward movement and the retention of
the mechanism in the position shown in Figures 3. 4 and 5 Sheet 2 is likewise
brought about by the part b because the latter presses with its lower oblique
surface against the corresponding oblique part of the bar or rail f and presses the
latter down.
While the knitting is going on the part b slides on the bar or rail fand holds
the same fast in the lowest position until it runs under the roller of the lever h at
the other side of the machine.
In the pattern roller are screwed pins 8 corresponding to the pattern to be
produced. When the bar r moves to the right and the pattern roller k is thereby
raised, springs o which are struck by the pins & in the pattern roller and the
needles e which rest on them are thus pressed upwards whilst the rest of the
needles remain down.
Of the three triangles et d' and d² the two latter and d² are placed high and
one e' low, so that the raised needles stand with their hinder feet opposite the high
triangles & and d³ and the others opposite the low triangles e'.
The foremost of the triangles d is drawn back in the cam plate (Schlossplatte)
in order that it should not come in contact with the feet of the raised needles.
All the side lifters of the hinder disposition of needles (Fontour) stand so high
that the needles from the cam itself (Schlossselbst) are only drawn back into the catch
position (Fangstellung). The needles of the front disposition (Fontour) knit off

page_text: twice at each stroke of the slide. The needles of the hinder disposition (Fontour)
on the contrary knit off only once at each stroke of the slide.
The knitting off of the needles of the hinder disposition (Fontour) takes place in
such manner, that the needles which are drawn down after the passing of the
leading cam until the meshes fall off remain in the catch position after the passing
of the second cam and on the contrary the needles which remain at first in the
catch position are brought into the lowest position by the passage of the following
cam. Let us suppose for instance that the cams shown in Figure 7 Sheet 1 have
moved to the left as of the triangle d' is drawn back, the middle part y of the left
hand cam (will push up all the needles whereupon the side triangle of the left
hand cam) brings all the needles into the catch position. From this catch position
only those needles which have not been raised by the pattern apparatus are now
brought into the lowest position by the triangle e¹ whilst the needles raised by the
pattern apparatus remain standing in the catch position. Hereupon all the needles
are pushed into the highest position by the following cam and are brought back
into the catch position by the side lifter.
From this catch position the needles raised by the pattern apparatus are now
pushed into the lowest position by the other triangle d².
The machine has like all other machines of the same kind two thread guides
qq2 of which always one and the same precedes. If we suppose the preceding
guide q has a red thread and the following one q² a black one, the needles not
raised by the pattern apparatus will always form red meshes because they knit off
first, and the raised needles always form black meshes because they knit off when
the black thread is laid in.
The process of working which is rendered clear by the Figures 7 and 8 Sheet 1
is as follows.
Before the termination of each stroke of the slide the following triangle d is
brought out of working position by the triangle d' and the preceding one is brought
into working position and the pattern roller k is turned one tooth in the manner
described above. At the beginning of the next stroke of the slide the pattern
roller with its pins 8 presses against certain of the beforementioned springs o
whereby the needles bare raised and their hinder feet q brought to the same level
with the triangle d' d. The triangle now precedes (in this case d¹) passes over
all the needles as it is put out of action at the end of the previous stroke of the
slide without touching the feet of the needles. The middle part of the leading
cam presses against the upper feet 1 of all the needles and pushes them into the
highest position. Hereupon the needles are drawn back into the catch position by
the side triangle 22 and the thread guide q' lays in the red thread. The needles a
are now seized by their lower feet q and drawn back by the triangle e' as they
were left down by the pattern apparatus until the double meshes laying on them
fall off
As these needles a at the last stroke seized the black thread and had laid the
red thread as loops on the tongues, the red thread falls outwards from the double
meshes and the black thread inwards as seen in Figure 8 by the drawn down
needles a.
The needles of the back row have all thrown off their black meshes. The middle
party of the second cam now brings the needles into the highest position and
while the side part x brings back the latter (the needles) into the catch position
the black thread is laid in by the thread guide q² and is seized by all the needles.
Finally the triangle & draws the needles b down until the double meshes on them
fall off. These double meshes occur against those of the needles which have
the black thread in front and the red thread behind, because first the black and
secondly the red thread of the double mesh has been laid in. The needles of the
back row have all let their red meshes fall. When the travel of the slide is
finished the pattern apparatus will raise other needles corresponding to the
pattern and other needles will knit black meshes while the remaining needles
produce red meshes. The needles of the front row would all be in the lowest

page_text: position between the cams if no thread were laid in them but it will be understood
that the needles of the back and front rows are connected together by the loops
of yarn (see Figure 8 Sheet 1) and the needles of the front row are drawn
upwards by the knitting needles of the back row until nearly in the catch
position as shown at Z and Z2 in Figure 8. In order that these needles shall not
be again drawn down by the leading side parts X1 X2 by running in the cam
which would often cause a tear or at all events a distortion of the meshes. The
side parts of the front cam S1 S2 are changed back out of the lowest into the
catch position for which purpose the construction of cam hereafter described
and shown in Sheet 3 is employed. If the pawl work is arranged to operate
the pattern roller always with the same pins, various patterns may be produced by
displacing the pattern roller k.
In the construction of the cam applied to both sides of the machine (and shewn
in Figure 2 Sheet 3) the frout cam is so arranged that a side part ho is pushed
automatically by the meeting of the bar with the screw K whilst the part h₁º
remains in the highest position. At the same time as the side part is raised the
middle part is also raised so high that it stands even with the side parts (seo
Figure 2). The cam passes in this position over the feet of the needles standing
in the catch position without moving the latter.
By means of this construction of cam.it is possible.to_shift_both_needle_plates of
the knitting machine as far sidewise against one another as the length of the
loops hanging on the front needles will allow, for as one arrangement of needles
(Fontour) does not work and therefore its loops are not drawn down by the
displacement of the following stroke of the machine the whole length of the loop
can be employed-Further, a greater displacement and new patterns can be
produced by knitting several rows of work with one arrangement of needles
(Fontour). While the other arrangement of needles Fontour stands up and holds its
loops. These rows of work are independent of the needles of the front row and as
many needles can be displaced towards the side as there are rows of meshes knitted
on one side (as shown diagramatically in Figure 4 Sheet 3. The arrangement of
the cam which renders possible the simultaneous raising of one side and of the
middle part is as follows:-The projection X°. (see Figure 2 Sheet 2) of the middle
part is embraced by the studs no, no, on the bar t and is thereby compelled to
take part in the movements of the bar to so soon as the slide 6º comes into the
outermost position and the bar to strikes the fixed point eo with its bent up
horns nº.
If no derangement of the cam takes place the slide 6º is returned before the bar
strikes the fixed piece e° (see Figure 1 and 5 Sheet 3).
When wedge knitting (Randstricken) the needles of the back rows are drawn
down through the outer parts of the edge cam (Figure 5) the last part of their
stroke, these outer parts must draw up the corresponding needles of the front row
by means of the loops of yarn which connect the back and front rows of needles,
whereby the yarn is strained and the work is very much distorted. In order to
avoid this, small triangles ho ho (see Figs 1 and 6 Sheet 3) are applied to the back
cam which triangles are usually drawn back into the cam plate and placed out of
action, but in edge knitting are brought into working position and push up those
needles, the neighbouring needles of which are drawn down by the outer parts 1º, 1º,
of the edge cam whereby the loops of yarn are liberated.
6
Figures 6 and 7 Sheet 3 show a mechanism arranged for adjusting the side
lifters ho, ho, which likewise allows the self acting side lifters h, and ho₂ to stand
fast and loose.
2
2
The side lifters ho, ho, are connected by screws do, and do with bars aº, a₁₂ let
into the cam box bº.
2
2
Pins or screws s%, 8%, fixed in the side bars aº, aº, or screws 8º, 8º, take into the
oblique slits of the bar Q3 which is guided on square pins m° m° screwed into the
cam box and held by the headed screws cº co.
By the striking of the last named bar Q3 against the stop e° one side lifter is

page_text: raised and the other one lowered, for example the leading, one may be placed up
and the following one down as shown in Figure 6 Sheet 3, or the bar may be
so arranged that the following side lifter is pushed up and the leading one down
as shown in Figure 8 Sheet 3.
If one of the side lifters is not displaced the connection of the corresponding
bar a with the other bar rg is broken by the removal (Enteruing) of the pin 80.
Fig 1. Sheet 3 shows a construction of cam by which the side triangles can
be adjusted at pleasure by self acting means without the necessity of shifting the
stop eg.
2
The bar is connected with the side lifters of the cam by double
levers and effects by striking against a fixed piece e a displacement of the
said side lifters, and 2. The pins or screws S3, S, which connect the said
levers 1, 2, with the bar 70, are fixed on a small adjustable plate 9 9º in such
way that by placing the pointer Zo Z, on any stroke of a scale engraved on the
bar the side lifters can be altered into any position from the highest to the
lowest, for example if the small plate qº, connected with the lever v. be placed
towards the left, the side lifter º, will take a lower position and if it be placed
towards the right the said side lifter will take a higher position. In order to
leave the needles in this construction of cam over the knocking off cam
(Abshlagkamm) at rest during any required number of strokes; the following
arrangements are employed.
2.
While the slide stands to the right the pin Sg is removed from one of the small
plates q which pin is for this purpose arranged as a wing screw, the side lifter hº
belonging thereto is placed fast in the catch position. Hereupon by pushing the
slide into the outer left hand position, one is enabled to push the right hand side
lifter into the catch position-after which the slide is moved towards the right,
whereby the needles are only drawn down into the catch position (see Figure 3
Sheet 3) by the side lifter h, and by shifting the slide into the outermost right
hand position effects the closing of the cam so that the middle lifter hº, at the next
stroke runs over the feet of the elevated needles and leaves the needles standing
in the catch position.
In order the better to set forth the essence of the Invention it may be well to
refer to processes heretofore used.
1-In reference to the displacement of the needle beds :-heretofore the whole
length of the loop has not been employed, because the needles of both arrange-
ments or dispositions (Fountouren) worked after the displacement and thereby the
loops of the needles of both rows were drawn downwards.
By the construction above described, one row of needles remains at rest in the
catch position after the displacement because the cam runs over the fect of the
needles and the displacement for the first and all other rows can thus be
greater.
2 In the production of edge goods the needles of the front row drawn up by
the knitting parts of the edge cam have not been drawn down again at the next
movement of the slide the leading slide lifter of the front row stands out of action
and thereby produces a better edge but by the application of the small
triangles ho, ho, herein before referred to, the drawing up of the front needles
through the back is avoided and thereby the loops of yarn which lay from the
back disposition of needles (Fontour) towards the needles of the front one are
lifted and drawn up in knitting by means of the front needles which are removed
from the work because the above mentioned triangles push upwards the needles of
the front row in proportion as, and at the time when the knitting triangles
of the edge cam draws the needles of the back row downwards so that the yarn is
not strained by this manipulation and the meshes are not distorted.
Having now described the nature of the said Invention and the manner in
which the same is to be performed, I would have it understood that what I
claim is
1. The arrangements hereinbefore described and shown in the Drawings for

page_text: producing jaquard patterns in knitting machines, which arrangements consist
substantially of needles furnished with two feet the whole of one row of which
needles is brought back only into the catch position by the cam triangles acting
on the upper feet and the needles which are to throw off the meshes are drawn
down into the lowest position by auxilliary triangles e 1 d1 or d 2 which act upon
the lower feet of the needles, the successive rows of work being definable by means
of pattern apparatus before each stroke of the slide.
2. The arrangements whereby the auxilliary, triangles c¹ and d d 2 are placed at
various distances from the surface of the upper needle plate, so that the needles
raised with their hinder feet out of their roads by the pattern apparatus are acted
on at their hinder feet by the following triangles d 1 or d 2 and the remaining needles
by the triangle e 1 and are drawn into the lowest position whilst the leading one of
the two triangles d 1 or d 2 is put out of action.
3. The peculiar form shown in Figure 5 Sheet 2 of the back needle foot, which
allows the triangle c¹ to pass under the feet of the raised needles without moving
the same..
4 The apparatus for raising the needles, and the spring o furnished with
hooks and laying under the needles as herein described and shown in the
Drawings.
-5-The-arrangements whereby-while-the-roller--slides-down-on-the-oblique
surface of the bar r a pawl likewise connected with the bar r pushes the ratchet
wheel round by one tooth.
6 The hereinbefore described process for the production of pattern goods which
consists substantially in leaving at rest the needles of one row in the position
shown in Figure 3 Sheet 3, over the knocking off cam v (Abschlagkaum) while the
other row works one or more rows of plain work which latter after the advance
of the needle plate is again connected with the needles of the Fontour heretofore
at rest.
7 The arrangement, that while one side lifter (for example h₁) is screwed fast in
the catch position by striking on one side (for instance the left) of the following side
lifter for example ) and a half stroke thereafter by striking the bar to on the
other (for instance the right) side or with the hand direct, the middle triangle s
is placed so high that while any required number of rows are being made the
needles of one row remain in the catch position without being touched by the
cani.
8. The arrangement shown in Figures 6. 7 and 8 Sheet 3 whereby the striking of
the bar against the stop e 2 effects the raising of one and the lowering of the
other of the side triangles (edge cam) wholly or in part and the arrangement of the
side triangle ho, adjustable on the moveable slides a₁₁ and a₁₂ for the purpose of
regulating the length of the mesh.
1
2
9 The above described process for producing edge work on knitting machines
which consists substantially in the employment of the triangles and he applied
so that they can be let down (versenkbar) on one side of the machine to raise the
needles of that side out of the lowest position into the catch position.
At the same moment that that the neighbouring needles of the other row are
drawn down out of the catch position into the lowest position by the edge
triangles 1°, or 1°, in order to avoid the binding together of the needles of the front
and back rows by the loops of yarn.
و
In witness whereof I the said Lorentz Albert Groth have hereunto set my
hand and seal this Sixteenth day of June in the year of our Lord One
thousand eight hundred and eighty two.
ADAT
LORENTZ ALBERT GROTH. (ITA)