Improvements in or relating to Knitting Machines.
Year: 1898

page_text: Date of Application, 18th Apr., 1898-Accepted, 19th Nov., 1898
Improvements in or relating to Knitting Machines.
We, GUSTAV FRIEDRICH GROSSER, of Markersdorf, near Burgstadt, in the King-
dom of Saxony, and Empire of Germany, Knitting Machine Manufacturer, SARAH
ANN FOSTER, of 11, Cliff Street, Preston, in the County of Lancaster, Lady, and.
JOHN TURNER, of 89, Fishergate Hill, Preston aforesaid, Colliery Proprietor,
do hereby declare the nature of this invention and in what manner the same is
to be performed to be particularly described and ascertained in and by the following
statement:-
This invention relates to knitting machines of the Lamb type and consists in
providing an arrangement of apparatus for producing jacquard patterns comprising two
three or more coloured yarns.
In the ordinary jacquard arrangements in such machines as for instance in working
two coloured yarns the needles on one side (or of one needle bed) must be divided
into two divisions and be actuated at two periods in such manner that the one
division of needles works the ground work colour and the other division the pattern
colour. This arrangement necessitates the traversing of the carriage twice for only
one row of loops because each time one division of needles is at work the other
division remains inoperative. There is an existing machine which makes a complete
row of loops with one course or traverse of the carriage by having the needles pro-
vided with high and low feet and a special kind of cam but this machine is not
effective for more than two coloured yarns.
By our invention three or more coloured patterns may be worked and the complete
row of loops made with one traverse of the carriage. To effect this the needles of
the back needle bed are each provided with two feet 1, 2, and 3 being the lower feet and
11, 21 and 31 being the upper feet (see Figs. 1, 2 and 3 of the accompanying drawings).
The pushing wire has its fangs 61 62 and 63 projecting through the needle bed a so as
to be operated by the jacquard de in the usual way.
"
At Fig. 4 it will observed that the oblong openings el el in the jacquard card e are
of two different lengths. At Fig. 1 the fang 63 is shewn in the position which obtains
when the said fang has passed entirely through one of the longer openings in the
card e-at Fig. 2 when the shoulder or end of the upper limb of the fang b² rests
against the card e and the point or curved part of the fang has partially entered the
card e-and at Fig. 3 when the fang 61 meets an unperforated portion of the
card c.
kland m indicate three fixed thread guides each supplying a different colour of
yarn.
The action of the apparatus above described or referred to is as follows:
Assuming the carriage to be moved from right to left (as at Fig. 5) the needles are
first actuated (in this case raised or lifted) by the cam g¹ (acting on the upper feet)
but not high enough to cause the loops to leave the needle latches. The next cam
to actuate the needles is g² which in this case draws down the needles whose lower
feet 1, 2, 3 are arranged to be pressed above the needle bed by the jacquard and so
leaving the said needles in the position shown at Fig. 1 in the position left by the
cam these needles being fully raised by the cam g³ (the yarn being taken from

page_text: .
the yarn guide k) and the needles being drawn down again by the cam 9. Then al₁
the needles pushed out by the jacquard are actuated to a small extent by the cam h
and the fully raised needles are drawn down by the cam h² so that only the semi-
raised needles remain in their former position, imparted by the cam h¹ the
semi-raised needles being then actuated-that is lifted and drawn down-(as
being the second division of needles) by the cams h³ h the yarn being taken from
the second yarn guide 1. The cam h² is so adjusted that it can meet the feet of
only those needles which have been lifted to their full height the relative positions
of the cams h¹ and (being shewn at Figs. 2 and 3). For working the division of
needles for the third coloured yarn the fully raised needles are pushed a little by the
cam ready for being actuated by the cams and 3 the yarn being taken from the
yarn guide m. The cam is raised in order that the needles may not be lifted to
the full height by the cam acting on the furthest projecting needle feet.
The several cams are then regulated on the left hand side by a cam slide in the
ordinary way the cams g¹ g² 12 and ¹ being drawn back within the cam box and
the cams g5 h6 25 and 14 (see Fig. 6) being put into action and the mechanism
being ready for the return course to operate in the same way as in the first
course.
7
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what we
claim is
In a Lamb knitting machine the combination of needle and jacquard mechanism
as shewn at and described with reference to Figs. 1, 2, and 3 of the drawings with
cam or lock mechanism shewn at and described with reference to Figs. 5 and 6 of
the drawings all arranged substantially as herein set forth for the purpose specified.
Dated this 18th day of April 1898.
X. :
For the Applicants,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.