Improvements in Warp-looms.
Year: 1889

page_text: VUMILIE SPECIFICATION.
Improvements in Warp-looms.
We, CARL KREISSIG, Needle Manufacturer, LOUIS SONNTAG junior Gentleman,
and OTTOMAR HARTIG, Gentleman, all of Grüna, in the Kingdom of Saxony, German
Empire, 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:-
Our invention relates to warp-looms for frame-work knitting in which kind of
work the warp is not lowered but the loops are made by laying the threads over the
warp needles see f¹ in Fig. 3 of drawings herewith. The loops f are formed into
meshes by being pushed into the needle books, the goods w being held back, then
pushing the hook and knocking the goods off the needles into the new loop. When
the new loop is not made into a mesh in the manner just explained but is pushed
up against the old mesh w Fig. 4 then a double mesh wf is formed and in that
case the loop has not been formed into a new complete mesh but into a "false
mesh."
By means of such "false meshes" the goods may be made closer and connected as
shewn in Fig. 1, in which a false mesh f¹ is laid against each mesh w, the false mesh
being laid against the same thread to the left or right alternately.
The ordinary method of producing such "false meshes" is very wasteful as to time,
because their production requires as much time as does the production of ordinary
meshes, as can be seen in the drawings Figs. 2-6. As soon as a row of meshes w
Fig. 2 has been finished and knocked off, then the sinker p pulls them backwards
into the position w Fig. 2. The warp guide is now raised, moved over a needle and
lowered, whereby the loop f Fig. 3 is produced. The sinkers p now rise and move
forward, thus pushing w and f¹ into the needle hook Fig. 4, they are then lowered in
order to grasp the goods w and false meshes f¹ Fig. 5 going again back or closing in
Fig. 6. Each mesh has now obtained its fellow false mesh and the position Fig. 2
is again attained, and consequently the thread may be again laid as loop Fig. 6 which
shall form the next mesh. Thus nearly all the same movements must be gone through
for making the false meshes as for making the ordinary meshes.
Our invention relates to the production of the said false meshes so that almost no
special time is employed for their production and the manner in which we carry our
invention into effect is shewn in the accompanying drawings Figs. 7-14.
According to our invention we employ instead of the ordinary needles shown in
Figs. 2-6, latch needles.
.
While the sinkers p Fig. 7, pull the goods w back, the warp guide is already being
raised, passed over a needle and again lowered, so that the loops f¹ are laid into the
open hooks while the goods w remain hanging on the latch z.
As the sinker p moves further backwards the goods w drop away from z (Fig. 8)
and the warp f is pulled over the latch so that when the mesh w drops off it cannot
slip forward.
P
Before the loop f¹ falls away from the latch z the warp guide is again being
raised, pushed over to the other side and lowered, so that the second loop Fig. 9 is
formed, which is laid by a fellow thread over the needles n while the thread has
now been laid over another needle. At the end in the locked-in position, the sinker
has gone so far back with the material w and has pulled the first loop f' with it so
far, that it, as shewn in Fig. 10, also falls behind the latch. This loop "¹ now forms
the "false mesh" and f² already forms the new loops for the next row of meshes,
for the sinkers p now move forward, push the loop fi under the latch Fig. 11 then
rise pushing w and f¹ that is to say mesh and false mesh (Fig. 12) on the latch and
away over the needle n. Fig. 1 shews that a false mesh f¹ is formed of another thread
than its foregoing or following mesh w.

page_text: needles, whereby the new
rise, with their slanting
to the right. The said
The sinkers p propel the goods w and warp f¹ before the
meshes are made (Fig. 13). When the sinkers p
shoulders, they push the material w off the needle
shoulders are necessary in order to prevent the sinkers from swinging in front of
the needles.
In this way, therefore, while a row of meshes has been locked in, both the
false meshes f. belonging to it and the loops f2 for the next row of meshes, have
been made, and thus much time been saved.
The process remains the same when instead of the sinkers moving horizontally as
well up and down the row of needles were arranged to move horizontally forward
and backwards.
The like process, that is to say, "laying twice during backward movement of
sinkers or forward movement of needles" is also useful for producing regular
patterns in the work, namely by using two warp-guides which are placed opposite
each other so that the warps from the lower guides are laid over the needles backwards,
therefore on the front side of the goods.
The warp frame shewn in Fig. 14 is of usual construction but has latch needles n,
and its parts are so arranged that the desired movements are performed at the right
times.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what
claim is :-
The method of producing false meshes in frame work knitting consisting essentially
in using latch needles (n) and causing the guide during the time that a row of
meshes is locked in, to lay its warps twice after another over the warp needles, the
first time (f) while the meshes (w) and the second time (2) while the first loops (1)
still hang on the latch (a) in order to prevent their slipping forward, so that after
the locking in the first loops (f¹) hang as false meshes beliind the latch near the
goods () and the second loops (2) hang forward in the open hooks ready for
forming the following row of meshes substantially as described and shewn in the
drawings.
London. June 7th 1889.
CARL KREISSIG.
LOUIS SONNTAG, JUNIOR.
OTTOMAR HARTIG.
Per C. R. Bonne & Co.,
41, Eastcheap, E.C., their Agents.