Improvements in the Manufacture of Lace on Twist Lace Machines.
Year: 1894

page_text: Date of Application, 3rd Sept., 1894
Complete Specification Left, 22nd Nov., 1894-Accepted, 22nd Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Lace on Twist Lace Machines.
We, EDWIN DOUGHTY Lace Manufacturer of Heskey Street Nottingham
HERMANN FLERSHEIM Lace Manufacturer of St. Mary's Gate Nottingham and
ALBERT GUSTAVUS FLERSHEIM Lace Manufacturer of St. Mary's Gate
Nottingham do hereby declare the nature of this invention to be as follows :-
:-
The object of this invention is to produce on a twist lace machine-by means of
particular movements of the guide bar or bars a stronger foundation net on which
patterns may be made by the ordinary Jacquard apparatus in the usual manner.
In our invention we cause the threads in one or more guide bars to traverse over
three or more carriages (preferably over five or six) each of them holding a bobbin
containing thread as is usual in lace machines. As the warp threads are traversed
in a direction from left to right, they are also made to twist once round each
carriage consecutively until the whole series of carriage threads have been twisted
with each of the warp threads, when this has been done the guide bars remain
stationary two motions of the machine, and then begin a return traversing move-
ment from right to left, and to twist each warp thread round each carriage thread
consecutively but in a reverse manner to that it twisted them when traversing from
left to right until the first carriage in the series is reached by each warp thread
from which it started when it again remains stationary two motions before recom-
mencing its recurring movements of traversing and twisting as will be well
understood by any one conversant with the manufacture of twist lace.
Dated this 25th day of October 1894.
EDWIN DOUGHTY.
HERMANN FLERSHEIM.
ALBERT GUSTAVUS FLERSHEIM.
Improvements in the Manufacture of Lace on Twist Lace Machines.
We EDWIN DOUGHTY Lace Manufacturer Heskey Street Nottingham
HERMANN FLERSHEIM Lace Manufacturer St. Mary's Gate Nottingham ALBERT
GUSTAVUS FLERSHEIM Lace Manufacturer St. Mary's Gate Nottingham 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:-
In our invention we cause an extra warp threaded in one or more guide bars (or
perforated metal bars) to traverse over three or more carriages (preferably over
five or six) each of them holding a bobbin containing thread as is usual in twist
lace machines, and to twist the said extra warp threads round the carriages by means
of certain movements of the said guide bar or bars in the manner herein fully
described and shewn by the drawing accompanying this Specification.
"When the guide bar commences to traverse the extra warp threads in a
direction from the left hand to the right, and to twist the warp threads round the
[piil

page_text: carriages, it begins with the left hand one of the series of six which are at this first
motion in the back combs. The guide bar remains stationary during this first
motion. The second motion of the machine brings the carriages into the front
combs, the guide bar then falls two gates to the right, causing the extra warp to
be fastened by the twisting of the straight up warp round the first carriage, and
twisting the extra warp round the second carriage. The third motion of the
machine takes the carriages again into the back combs, and the guide bar rises one
gate to the left. The fourth motion of the machine brings the carriages into the
front combs and the guide bar again falls two gates to the right to twist the extra
warp threads round the third carriage. The fifth motion of the machine takes the
carriages into the back combs and the guide bar rises one gate to the left. The
sixth motion brings the carriages into the front combs, the guide bar falls two gates
to the right to twist the extra warp threads round the fourth carriage. The seventh
motion takes the carriages into the back combs and the guide bar rises one gate to
the left. The eighth motion brings the carriages into the front combs the guide
bar falls two gates to the right, to twist the extra warp threads, round the fifth
carriage. The ninth motion takes the carriages into the back combs the guide bar
rises one gate to the left. The tenth motion brings the carriages into the front
combs and the guide bar falls two gates, remaining stationary during the eleventh
motion of the machine. Then a return traversing motion is commenced by the
guide bar or bars, from the right hand to the left i.e. from the sixth carriage of the
series to the first with rising and falling movements in exactly an inverse manner
to that already described when traversing from left to right."
It should be well understood that the extra warp before mentioned may be
composed of as many threads as there are carriages in the machine i.e. a full warp,
and be threaded in one or more guide bars so as to make separately or together a
full threaded bar, or we may use a warp with less threads on it than there are
carriages in the machine, and enter them in the guide bar or bars in such a manner
as may be desirable to produce striped effects or other devices on the fabric, or we
may use the said extra warp threads from one, or several warp beams, as such
arrangements are commonly adopted in the manufacture of twist lace.
Fig. 1 in the accompanying drawing is a chart shewing six vertical lines
representing the six carriages in the series; a number of horizontal lines cross the
vertical lines dividing the chart into spaces representing the motions which are
numbered from one to twenty, these being the number of motions required to complete
one repeat. The thick line traversing in a zig-zag manner from left to right, and
then from right to left, represents only one of the extra warp threads conducted
by the guide bar or bars, while the wheel Fig. 2 performs one revolution
Fig. 2 represents a wheel with rises and falls on it, required to produce the
twenty. movements of the guide bar or bars necessary to operate over a series of
six carriages. The same movements may be effected by using a jacquard at the
end of the machine.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what
we claim is
"The particular movements heretofore described of a guide bar or bars traversing
extra warp threads from left to right, at the same time twisting them round a series
of carriages, then retraversing the same guide bar or bars from right to left, and
at the same time inversely twisting the extra warp threads round the same
carriages."
Dated this 22nd day of November 1804
EDWIN DOUGHTY.
HERMANN FLERSHEIM.
ALBERT GUSTAVUS FLERSHEIM.