Improvements in the Manufacture of Twist Lace, and in Apparatus therefor.
Year: 1894

page_text: Date of Application, 14th Mar., 1894
Complete Specification Left, 13th Dec., 1894-Accepted, 19th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Twist Lace, and in Apparatus
therefor.
We, THOMAS ISAAC BIRKIN, and THOMAS STANLEY BIRKIN, both of
Ruddington Grange, Ruddington, in the County of Nottingham, Lace Curtain
Manufacturers, do hereby declare the nature of this invention to be as follows:-
Heretofore in the manufacture of lace curtains and other articles the fabric when
made with a single set of spools has had in either, what is generally known as
3 gait or 4 gait work, a right and a wrong side, i.e. a raised side and a flat side.
By our improved method we are enabled to produce the fabric with both sides
raised substantially alike, with a single set of spools, i.e. one spool thread to each
carriage, the cloth work being either 3, 4 or more gaits in thickness at will.
In a lace curtain machine of the usual construction we employ 3 guide bars
which we will call 1, 2 and 3, No. 1 being next to the back comb bar, No. 2 in the
middle, and No. 3 in the front.
No. 1 bar is threaded in every alternate guide with threads from a half set
of spools, No. 2 is threaded in every guide with threads from a full warp,
and No. 3 is threaded in every alternate guide with threads from a half set of
spools.
No. 3 bar is so threaded that the guides holding threads stand exactly opposite
to the empty guides in No. 1 bar.
Dad thin 12th day of Morob 1801
Improvements in the Manufacture of Twist Lace, and in Apparatus
therefor.
We, THOMAS ISAAC BIRKIN, and THOMAS STANLEY BIRKIN, both of
Ruddington Grange, Ruddington, in the County of Nottingham, Lace Curtain
Manufacturers, 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 :-
Heretofore in the manufacture of lace curtains and other articles the fabric when
made with a single set of spools has had in either, what is generally known as
3 gait or 4 gait work, a right and a wrong side, i.e. a raised side and a ribbed
side.
By our improved method we are enabled to produce the fabric with both sides
raised substantially alike, with a single set of spools, i.e. one spool thread to each
carriage, the cloth work being either 3, 4 or more gaits in thickness at will.
In a lace curtain machine of the usual construction we employ 3 guide bars
which we will call 1, 2 and 3, No. 1 being next to the back comb bar, No. 2 in the
middle, and No. 3 in the front.

page_text: No. 1 bar is threaded in every alternate guide with threads from a half set
of spools, No. 2 is threaded in every guide with threads from a full warp,
and No. 3 is threaded in every alternate guide with threads from a half set of
spools.
No. 3 bar is so threaded that the guides holding threads stand exactly opposite
to the empty guides in No. 1 bar.
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 :-
:-
1. The manufacture of double sided lace fabrics by means of two half sets of
spool threads one on either side of the warp threads substantially as described.
2. Lace machines having two guide bars one on either side of the warp threads
each carrying half as many threads as there are warp threads and the threads.of
each bar being opposite the spaces between the threads of the other bar substantially
as described.
Dated this 11th dow of December 1901
THOMAS ISAAC BIRKIN.
THOMAS STANLEY BIRKIN.