Improvements in Warp-knitting Machines.
Year: 1890

page_text: Date of Application, 7th Oct., 1890-Accepted, 6th Dec., 1890
Improvements in Warp-knitting Machines.
We, ERNST FRIEDEN and FRANZ KRESZNER, both of Goppersdorf near the City of
Burgstädt, Saxony, Gentlemen do hereby declare the nature of this invention and in
what manner the same is to be performed, te he particularly described and ascertained
in and by the following statement:-
Our invention relates to that class of warp-looms in which eye-needles are employed
and the object of our invention is to do away with or decrease the trouble and difficulty
arising from the threads getting stuck or entangled in the needle-eye of such looms.
This takes place especially when the needle has been in use for some time and
when there has been formed by the constant rubbing of the thread a slit or unevenness
in the eye of the needle, in which any irregularly thick part of the thread easily
catches, at times causing the thread to break and otherwise impairing the quality of
the finished fabric.
According to our invention we attain these objects by placing a wire-bar directly
behind the eyes of the needles, causing the thread to pass over such wire, which
relieves the strain from the needle, so that the latter acts as a guide only.
The drawings hereto fully explain the details of our invention and the manner in
which we carry it into effect.
Similar letters refer to similar parts throughout the several views, and in any or all
the figures the letter represents the sinker, the thread, n the hook-needle, / the
eye-needle, the knitted loops, the slit made in the eye-needle by wear of the
thread and a is the metal wire introduced according to our invention to relieve
the strain otherwise exercised on the eye-needle.
In Figs. 1, 1, 1° and 2", 2b, 2°, we have represented the action of the parts in
question, when our invention is not employed, showing how the thread wears into the
slit x, and the excessive friction exercised on the thread when as in the position Fig. 2ª
it is at an acute angle, Figs. 1ª and 2ª being side views, Figs. 1 and 2 top views,
and Figs. 1 and 2° end views.
In Figs. 3ª, 3 and 3, which are side, top and end views respectively, and in
Figs 4, 4 and 4, being also side, top and end views respectively, we have shewn the
parts in the same position as in Figs. 1 and 2, but have added the wire-bar a, which
forms the subject of our invention, showing that when the wire-bar is employed the
thread rests on it instead of as before in the needle-eye.
While in the drawings above referred to we have constantly shewn the needle
with the worn slit, in Figs. 5 and 5° we have shewn the wire-bar a employed for a
new needle in which there is no slit.
In order to prevent the wire-bar a from bending under the strain of the thread it is
supported by props c, which are fastened in a bar and let into sockets on the
underside of wire-bar a so that the upper side of same remains quite smooth and
even, as fully shewn in Fig. 6ª, Fig. 6° being an end view of same.
In Figs. 7 and 8, the latter being a ground plan view of the former is shewn
the eye-needle bed B, with angle-irons d to which is attached the bar & serving as
bed for the props e, of which generally one is provided between each pair of needles,
and the up-right supports 61 and 63, carrying the screw-threaded hooks s¹ and s³
between which the wire-bar a is spanned and which may be well tightened by means
of a mother nut.
our said
Having now particularly described and ascertained the nature of
invention and the manner of carrying it into effect we declare that what we
claim is:
In warp-looms working with eye-needles the arrangement consisting essentially of

page_text: a wire-bar placed near the needles for the purpose of relieving the strain of the
thread upon the needles themselves, such wire-bar being prevented from bending by
means of props, all substantially as described and shewn in the drawings.
Dated the 7th of October 1890.
C. R. BONNE & Co.,
41, Eastcheap, E.C., Registered Patent Agents.