Improvements in or relating to Looms.
Year: 1897

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c. Act, 1883) as required by
the decision of the Chief Examiner of the 19th day of February 1898.
Date of Application, 11th Jan., 1897-Accepted, 18th Sept., 1897
COMPLETE SPECIFICATION (AMENDED).
Improvements in or relating to Looms.
I, ERNST DIETZSCH of Eugenstrasse 6, Seidelfingen near Stuttgart, in tue
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:-
This invention consists of an attachment for looms, which in cases of breakage
of a warp-thread causes an automatic stoppage of the loom.
The essential feature of this.invention consists in the catching of the broken
warp-thread by a brush which winds the thread about it and imparts to the same
another direction, whereby this thread acts upon a rod resting in jointed lever
arms, and by this means produces a falling back of the stick with the lever arms.
The latter are in connection with the shoot-fork, thus bringing the loom to rest.
In the following drawing is shown a loom with such a contrivance by way of
example in two stages of action as follows-Figure 1 a plan. Figure 2 a side
view of the contrivance, while Figure 3 shows a variation of the same in side
view.
The brush cylinder a, which rests in bearings upon the bracket b, is provided
at one end with a driving drum c, which is driven by means of a suitable drum e,
fixed upon the axle d. The bracket b as well as the bracket f, which holds the
lever g, is fastened to the side frames h of the loom. The double armed levers y
turning about the bolts, are connected with each other by a rod k, at one end
and are provided with adjustable counterweights at the other end. The rod k is
connected with the releasing lever o on the shoot fork p by means of a cord m
which passes over rollers n.
If a thread of the warp is broken, the same is seized by the brush cylinder a
(which seizes the warp and is kept in rotation by means of the axle d) and is
drawn out of the warp. Thus the thread is wrapped round the brush cylinder and
produces by this means in consequence of its tension as well as its changed
direction a downward plunge of the rod k, and by means of the cord or band m
connected therewith, a disengagement of the loom. After the broken thread has
been repaired, the rod k and the lever g, connected therewith, are brought back
to their original position by a simple pull upon the cord m, so that the loom can
again be set in action.
In using two brush-cylinders a (Figure 3), one of which is placed over and the
other under the warp, two rods k are necessary, which are connected with the
eleasing mechanism of the loom by means of a cord m.
For communicating the rotation of one cylinder to another, a band or chain q
may be employed. In other respects the construction remains the same.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I make no general claim
for the use of a brush for picking up the broken warp thread, but I declare that
what I claim is :-
1. A loom, of which on the breaking of a warp-thread the action is stopped by
a brush cylinder drawing away the broken thread from the warp and thus giving
the same another direction, whereby a tension is produced, which causes an out
stroke of a rod, which being attached to a cord, effects the stoppage of the action
of the loom substantially as described.
2. In a loom, the arrangement of bearings which serve as fulcrums for double
armed levers which are capable of turning around a bolt, and are connected with
each other at two corresponding ends by a rod, the opposite ends being each
provided with a counterweight, substantially as described.
3. In a loom, the arrangement of a cord led over rollers which is connected at
one end with a rod and at the other with the stopping apparatus of the loom,
and upon the out stroke of the rod taking place, causes a stoppage of the loom,
substantially as described.
4. In a loom, the arrangement of two brush cylinders, which, on the breakage
of a warp-thread, cause a stoppage of the loom, by means of two rods and two
cords, substantially in the manner herein before described.
Dated this 7th day of January 1897
STANLEY, POPPLEWELL & Co.,
Chartered Patent Agents,
7 and 8, Southampton Buildings, Chancery Lane, London,
Associate Agents.