Improvements in Knitting Machines.
Year: 1886

page_text: Date of Application, 9th Mar., 1886.
Complete Left, 8th Dec., 1886.
Complete Accepted, 22nd Feb., 1887.
[Communicated from abroad by ALBERT WEDERMANN and BRUNO ENDLER, both of
Marxergasse, No. 17, Vienna, in the Empire of Austria, Manufacturers.]
Improvements in Knitting Machines.
I, PERCY HADDAN, of the firm of Herbert & Co., Patent Agents of 67 Strand in the
County of Middlesex Civil Engineer do hereby declare the nature of this invention to
be as follows:-
The object of this invention is to provide knitting machines with such gear as may
enable them to knit longitudinal stripes or patterns combined of such stripes in
circular fabrics.
By the means in use it is only possible to knit stripes laterally, that is to say, in
circular stripes round the fabric.
The method of performing my invention is as follows:-
Two shafts are made to revolve by suitable gear, one on each side of the needle-hed
of a Lamb knitting machine, these shafts cause two plates to move up and down in
guides, by means of eccentrics or cams on the shafts, the said plates being provided on
their upper edge with fixed or removable bayonet-like teeth or hooks which serve to
hold the notches in such of the needles as are required to form the pattern and during
the ascent of the cam-plates to bring these into the required position for receiving the
thread from the pattern thread-guide. Two other shafts geared on the first mentioned
pair, one on each, and lying along the ends of the needle-bed, serve to give a lateral
motion to the aforesaid plates by means of eccentrics which actuate levers which have
their further ends hooked or fastened to the ends of the plates. by means of studs or
otherwise.
This lateral motion is confined in length to the amount of one, two, or more needle-
breadths as may be required according to the shape of the guide grooves. This lateral
movement is required in order to change the pattern, or to make diagonal pattern, or
otherwise.
There are also with this machine two thread guides, one being for the pattern thread.

page_text: COMPLETE SPECIFICATION.
Improvements in Knitting Machines.
I, PERCY HADDAN. of the firin of Herbert & Co., Patent Agents, of 67 Strand, in
the County of Middlesex, Civil Engineer, do hereby declare the nature of this
invention, a communication to-me from abroad by Albert Wedermann and Bruno
Endler, both of Marxergasse No. 17, Vienna, in the Empire of Austria, Manufacturers,
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
This invention relates to improvements in pattern-knitting machines for circular
knitted fabric (Lamb system) and consists in providing each needle-bed with a change-
able comb which lifts certain needles (hereinafter called "pattern needles") on every
return of the sliding carriage so far that they are placed above the depressing cams
said pattern needles on the progressive motion of the carriage being conveyed by
particular cams (called after-guides or auxiliary cams) to the pattern yarn guide and
the said combs being re-conveyed after the thrust into their original position. The
combs also receive a lateral displacement so that new or other needles are lifted as may
be necessary for producing any desired pattern.
In the annexed drawings Fig. 1 is a front view of the machine (for the sake of
clearness the carriage is shown removed and its situation is only indicated by dotted
lines).
0°
Fig. 2 is a side view partly in section with the cams also in section.
Fig. 3 shows the arrangement of the yarn guides from the back.
Fig. 4 shows the comb-bearer from the inner side.
Fig: 5 is a cross-section of the same.
:
Fig. 6 is a front-view and cross section of the comb.
Fig. 7 is a section of the cam-shaft q.
Fig. 8 is an elevation of the forked fever W for the lateral movement of the comb.
Eig: 9 shows a modification of the cam-disk.
Fig. 10 is an inner view of the cams and needle path.
Fig. 11 is a rear view of the same.
Fig. 12 is à section through carriage sliding plate and cams.
Fig. 13 is the inner view of the movable cain plate C
11
Fig. 14 is a perspective view of the cam stud or pin H H' for lifting and depressing
the plate C.
Fig. 15 is a plan view of the sliding plate.
Fig 16-is à section of tlie same on the line X X Fig. 15.
Fig. 17 is a side view of Fig. 16.
Fig. 18 is a section of the carriage ani- sliding plate on the line a♬ Fig. 2
on air enlarged scale.
Fig. 19 is a top-view of the forked lever Z.
The machine consists (in common with an
the two needle beds a mounted on a frame
or the like. This frame carries at its rear two uprights d to which two horizontal
ordinary Lamib knitting machine) of
which is secured (at c) to a table

page_text: rails i are attached, upon which the yarn-guides f, g, slide (is the ordinary
yarn-guide, y the pattern yarn guide). The said rails carry the adjustable stop
devices h for the yarn-guides.
of
Upon the needle beds slides the carriage which carries a driver k. The movable
stud or pin is pressed by a flat spring between the two projections or lugs
the lower yarn-guide (see Fig. 2) so that the carriage and the lower yarn guide are
coupled. When the carriage and with it the coupled yarn guide come to the inclined
surface the stud or pin is forced outwardly, so that the coupling of kandis
disengaged.
The lower yarn guide always leads. Shortly before the end of the stroke on the
right side the lower yarn guide is disengaged, the driver advances a short distance to
the right (up to the end of the stroke) then returns towards the left side and takes
along the lower yarn guide (by means of the left projection). On the return or
retrograde moveinent the lower yarn-guide is obliged to pass the upper one g;
because always leads as mentioned above; in order to make this possible the
horizontal arm of the lower yarn-guide carries a sloped or inclined projection, which
raises, when passing, the upper yarn guide which is hinged at g' and which is pressed
down after the passage off by a spring .
The yarn guides and are coupled as follows:
The lower yarn guide has a small pivoted pin or stud / (Figs. 2 and 3) which may
be raised and when in a raised position enters between the two lugs of the upper
yarn guide and takes along the latter; however this coupling may be constructed
similar to that of k and f
Each needle bed is provided with a comb bearer n (sliding in guides into which
bearer is set (at n Fig. 5) a combo (Fig. 6) of any shape, the arrangement and number
of its teeth varying according to the pattern desired; the comb is secured by turning
with the nut. This comb bearer may be engaged or disengaged at will, being provided
openings or slots n³, so that the cam on the driving shaft may pass through freely,
when the comb is to be set out of action; if the comb is to be raised, a small pinion n
is turned by the lever or handle n' in the direction of the arrow (Fig. 4) and by that
motion the two racks are pushed outwardly as indicated in dotted lines (Fig. 1) so
that they may be raised by the cams 7' and the comb lifted so as to raise certain
needles (pattern needles) above the depressing cams D. After the passage of the
cams the comb bearer is drawn back by a spring into its original position. The
hars n may also be actuated by hand or omitted altogether.
Along the under side of each needle bed is provided a shafty with cams g', said
shafts being connected to the crank shaft by means of bevelled gear. The front
shaft has on its left side a pinion s which gears into a cog-wheel t, mounted on
the shaft of the cam-disk V, the rim of the latter is embraced by a fork W which
secured to a lever Z pivoted at y and slotted on both extremities (Figs. 2 and 20).
The rod A at one side of the comb bearer slides in the slot of the lever Z and the
latter receives a reciprocating lateral movement on every revolution of the cam disk V
through the fork W so that the combs are displaced laterally in order to raise (lift)
periodically other needles.
The cam disk V may be replaced by a grooved cam disk such as V1 (Fig. 9); here
instead of a fork an extremity of lever W may enter into the slit mentioned above; in
order to diminish the friction the extremities of the fork embracing the cam disk may
be provided with friction-rolls.
The carriage is provided with a base plate B, upon which slides a dove tailed
plate C carrying the cams D. These three parts are hinged by the hinge joint E on
the inner part of the carriage. The sliding piece F is adapted to slide in two dove-
tailed guides on the underside of the carriage and carries the tongue or bar F¹, the
carriage has a small intermediate space I (Fig. 18) for being adapted to move laterally.
The sliding-piece F has on its upper side two wedge shaped inclined surfaces F and
the cam plate is provided with two studs or pins, having oblique or inclined slots
which extend (project) through sliding piece and carriage (Figs. 2, 12, 15, 16) and

page_text: f
occupy an appropriate position in regard to the inclined surfaces of the sliding piece,
so that they act as follows:
When the carriage arrives near to the end of its stroke to the left, the tongue F
pushes against the bar or slip bolt G; the sliding piece is thereby arrested and owing
to the intermediate space I (Fig. 18) the carriage cams &c. are enabled to pass over the
sliding piece F1, thereby the studs or pins K with their slots rise on the inclined
surfaces of the sliding piece into the position B (Figs. 15 & 16) and lift the cam
plate hinged at E and raise it from the needles.
This is to be done on both the needle beds and prevents a huriful strain on the
fabric which is burdened with weights, otherwise the stitches would break.
In order to adjust the cam or needle path according to the size of the yarn the
plate carrying the cams D is adjustable on the base plate B, by means of the two
excentric pins (Figs. 12, 13, 14) which may be turned by means of buttons H and
enter into slots of the adjustable plate so that the latter may be raised or depressed
thereby.
The operation of the machine is as follows:
: On every revolution of the crank axle the carriage makes a to-and-fro movement,
eams and combs of the two needle-beds work reciprocatingly. The comb brings the
pattern needles into their advanced position (that is with their butts above the edge Dx
of the needle-path) from where they are depressed by the auxiliary cam D**.
It will be readily understood that the precise details of construction hereinafter set
out may be varied widely, without departing from the spirit of this invention.
Having now particularly described and ascertained the nature of said invention
and in what manner the same is to be performed, I declare that what I claim is
In a Lamb knitting machine for circular fabric.
1. The combs o operated vertically by means of cams q' or other means and laterally
by the cam-disk V and levers W, Z or other means substantially in the manner and
for the purpose specified.
2. The spring coupling of the driver & with the under yarn-guide/'; the coupling
of the yarn-guides fg and the mechanism for passing of the same.
3. The auxiliary depressing cam ** substantially as and for the purpose set forth.
4. The combination with a combo of a hinged cam and mechanisin for raising the
hinged cam, consisting of the parts F F F² K, substantially as and for the purpose
specified.
5. The combination with a comb of cam plate having mechanism H H¹ for
lifting and depressing the plate C, substantially as described and illustrated.
PERCY
HADDAN.
Pp. Herbert & Co.,
67, Strand,
Agents to Applicant.