Improvements in the Manufacture and Finishing of Lace Made on Warp Lace Machines.
Year: 1891

page_text: Date of Application, 4th June, 1891
Complete Specification Left, 4th Mar., 1892-Accepted, 16th Apr., 1892.
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture and Finishing of Lace Made on
Warp Lace Machines.
I HENRY HILL, Lace Manufacturer of Mansfield Road in the Town and
County of the Town of Nottingham do hereby declare the nature of this invention
to be as follows:-
Whereas up to the present time when it has been desired to produce in a lacc
pattern made on a warp lace machine what is known as a "curl purl" it has been
deemed necessary to make it by the process which is known in the trade as
"knock off" my invention relates to a method of producing the same effect by the
quicker process known in the trade as "lap and press."
For this purpose use for the thread intended to be purled a hard twisted
cotton such as will when doubled have a tendency to twist of itself together.
The pattern is made in the ordinary "lap and press "way with the purls introduced
where the design requires but whereas in the ordinary way of finishing warp lace
goods the brown pieces are bleached and dressed before the removal of the draw
threads or threads which hold the purls in position I take out the draw threads
which hold the purls I desire to curl before the lace is bleached and dressed.
Thus leaving the purl to twist up of its own tendency and giving it the effect of a
"curl purl." I also can accomplish the same end by using as a draw thread a silk
or woollen yarn which is left in the work until the bleaching process burns it out
thus leaving the purl free to twist up as before described. In this latter case
where the goods do not require bleaching or making while the silk or woollen
thread is burnt out by a well known chemical process leaving the cotton lace
uninjured.
1001
No text detected.
COMPLETE SPECIFICATION.
Improvements in the Manufacture and Finishing of Lace Made on
Warp Lace Machines.
HENRY HILL of the firm of Balm Hill & Sons, of 1 Mansfield Road in the
Borough of Nottingham, Lace 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 improvements in the manufacture of lace produced on
warp machines.
Heretofore when it has been desired to produce in a lace pattern made in a warp
lace machine what is known as a "curl purl," it has been necessary in order to
produce this effect to employ the process, which is known to the trade as
"knock off," that is instead of pressing off every course, two, three, or more laps
are made between each operation of the presser. The object of my invention is to
produce the same effect by the quicker process called and known to the trade as
lap and press" that is pressing off every lap.
For this purpose I employ for the thread which is to produce the purl a hard
twisted yarn such as will when doubled have a tendency of itself to twist together
or produce what is known to yarn spinners as a "snurfle." The pattern is made in
the ordinary way and purls introduced where the design requires but whereas in
the finishing of ordinary warp lace goods the brown pieces are sent to be bleached
and dressed before the draw threads are unroved or taken out, I unrove or take
CD27

page_text: out the draw threads (which hold the purls which are to have a curled appearance)
before the piece is bleached or dressed, thus liberating those purls and allowing
them to twist up or curl of their own natural tendency, a position which they are
caused to retain and also improved in appearance by the subsequent process of
bleaching and dressing.
In cotton goods instead of using an ordinary cotton draw thread, silk or woollen
draw threads may be employed these may be left in and destroyed by the well
known process of bleaching with chloride of lime and the purls liberated, thus
producing the same effect as in the manner previously described.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is : :-
1. In the manufacture of warp lace the production of a curl purl by the
ordinary process of lap and press and the employment of a hard twisted thread to
form the said purl which is released by removing the draw threads before bleaching
or dressing substantially as herein described.
2. In the manufacture of warp lace the production of a curl purl by the ordinary
process of lap and press and the employment of hard twisted thread to form the
said purl and silk or woollen draw threads which are destroyed in the process of
bleaching substantially as herein described.
Dated this 3rd day of March 1800
HENRY HILL.