Improvements in Circular Knitting Machines.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Circular Knitting Machines.
I, WILHELM HEIDELMANN, of Stuttgart, in the Empire of Germany, Manufacturer,
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 circular knitting machines and has for its purpose to pro-
duce longitudinally striped, ringed, or ringed longitudinally striped fabric by means
of one or two rows of locks by the application of peculiarly shaped locks adapted to
be so displaced separately or relatively to each other as to allow each lock system as
well as also a whole row of locks to be engaged or disengaged without taking off the
locks proper, the needles of a system of one row of locks moving always in the
opposite direction of the needles of a corresponding system of the other row.
Referring to the accompanying drawing,
Fig. 1 is a vertical section through the needle head and lock mantle.
Fig. 2 represents a partial inner view of the lock mantle.
B is the base plate, on which is screwed the lock mantle E and in which is revolvably
lodged the conic needle head A, adapted to be set in rotation by means of the conic
tyre C screwed thereto. The locks proper are secured inside the lock mantle E
and capable of being adjusted by aid of set screws provided on the outer side
thereof.
If S S S² signify the single constituents of a lock-called lock system-of the lower
row of locks, and 0, 01 02 the constituents of a lock system of the upper row of
locks, the lock systems, situated in a circle around, form a row of locks. Of the three
single constituents S, S1 S2 of a lock system, the part S serves to effect the drawing
down, S to produce one half, and S¹ the other half of the advancement of the needles.
The size of the meshes is regulated by means of part S2, adapted to be raised or
lowered by means of a set screw, whereby the meshes become longer or shorter
respectively.
Of the two parts S S¹ destined to advance the needles, the part S is screwed fast
on the lock mantle, whilst S' is likewise adjustable by means of a set screw and, in its
lowest position, does not displace the needles far enough to enable their hooks to
seize the yarn and moreover the part S' is turned in its highest position, whereby no
formation of meshes can take place. In the highest position of S¹ the needles are in
action.
If a second, upper, row of locks is provided as illustrated in the drawing, the single
lock systems Ó O¹ 02 are of a similar nature as the lower systems S S S² except of
course that they have shorter needles working therein, in order that all needles of both
rows of locks project in their highest position the same distance above the upper edge
of the needle head.
Moreover the systems 001 03 of the upper lock row occupy such a position
relative to the systems S S¹ S2 of the lower lock row, that the pieces S S¹ having the
long needles are situated exactly below the piece 0 drawing down the short needles,
while on the other hand S2 occupies the same position relative to 00¹. Consequently
the long needles move always in the opposite direction of the short needles.
According to the pattern sought to be produced the short and long needles are
alternately employed, for instance one short and one long needle for so-called 1:1
fabric, two long and two short needles for 2: 2 fabric, two short and six long needles
for 2:6 fabric or vice versa.

page_text: Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed I declare that what I
claim is:
1) In circular knitting machines with one row of locks situated inside the lock
mantle, the application of lock systems S S' S², consisting of three single parts S,
S1 and S2, the parts S2 and S¹ being adjustable to allow the size of the meshes to be
regulated by the adjusting of part S2, and the respective lock system to be engaged or
disengaged by adjusting the part. S' in its highest or lowest position while the part S
is simultaneously placed in its highest position, substantially as and for the purpose
set forth.
2) In circular knitting machines with two rows of lock systems S S¹ S² referred to
in claim 1) and 0, 01 02 respectively-short needles working in the upper, and long
needles in the lower row, the arrangement of each of the systems 001 02 of the
upper lock row over one of the systemis S S¹ S2 of the lower row so as to cause the
longer needles to always move in the opposite direction of the shorter needles,
substantially as and for the purpose set forth.
Dated this 24th day of August 1889.
WILHELM HEIDELMANN.
Per Huelser & Co., Attorneys.