IMPROVEMENTS IN THE MANUFACTURE OF LACE ON BOBBIN NET OR Tharram LAOR MACHINERY
Year: 1869

page_text: LETTERS PATENT to Henry Yates, of Rue Lafayette, St. Pierre les.
Calais, in the Empire of France, Manufacturer, for the Invention
of "IMPROVEMENTS IN THE MANUFACTURE OF LACE ON BOBBIN NET OR
Tharram LAOR MACHINERY"
Sealed the 26th October 1869, and dated the 26th August 1869.
PROVISIONAL SPECIFICATION left by the said Henry Yates at the
Office of the Commissioners of Patents, with his Petition, on the
26th August 1869.
I, HENRY YATES, of Rue Lafayette, St. Pierre les Calais, in the
Empire of France, Manufacturer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE OF LACE ON BOBBIN
NET OR TWIST LACE MACHINERY," to be as follows:-
My improvements in the manufacture of lace on bobbin net or twist
lace machinery relate to an improved method of manufacturing that
kind of lace known as imitation blonde and Chantilly lace.
In carrying out my Invention I employ what is commonly known as
single warp (that is, one warp thread to one bobbin thread,) to form the

page_text: groundwork and finings of the fabric. In producing the crossings of
every alternate wail of the groundwork I employ two warp threads,
and in forming the crossings of the other alternating wail I employ one
bobbin thread and one warp thread. By this means I am enabled to
produce lace fabric with the groundwork or net of the lace one-third
coarser than the guage of the machine, whilst the finings are produced
the full guage of the machine.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Yates in the Great Seal Patent Office
on the 22nd February 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
YATES, of Rue Lafayette, St. Pierre les Calais, in the Empire of France,
Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent bearing date the Twenty-sixth day of August, in the year.
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Henry Yates, Her special licence
that I, the said Henry Yates, my executors, administrators, and
assigns, or such others as I, the said Henry Yates, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
THE MANUFACTURE OF LACE ON BOBBIN NET OR TWIST LACE MACHINERY," upon
the condition (amongst others) that I, the said Henry Yates, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in
the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Henry Yates, do hereby declare
the nature of the said Invention, and in what manner the same is to

page_text: или восстание шини
the following statement thereof, that is to say:
My improvements in the manufacture of lace on bobbin net or
twist lace machinery relate to an improved method of manufacturing
that kind of lace known as imitation blonde and Chantilly lace.
In carrying out my Invention I employ what is commonly known as
single warp (that is, one warp thread to one bobbin thread), to form the
groundwork and finings of the fabric. In producing the crossings of
every alternate wail of the groundwork I employ two warp threads, and
in forming the crossings of the other alternating wail I employ one bobbin
thread and one warp thread. By this means I am enabled to produce
lace fabric with the groundwork or net of the lace one-third coarser than
the gauge of the machine, whilst the finings are produced the full gauge
of the machine.
But that the nature of this Invention may be fully understood I will
proceed more particularly to describe the manner of carrying out the
same with reference to the accompanying Diagram.
The description of machine which I prefer to employ in the production
of lace according to this Invention is that known in the trade as the
ordinary Lever's lace machine.
The finings (or muslins) produced are such as are ordinarily made on
twist lace machinery, the novelty of the Invention consisting in the
peculiar mode of making the groundwork or net of the fabric. The
machine employed will be arranged or fitted up with a single warp (that
is, one warp thread to one bobbin thread), and I employ an extra thread
or extra threads to produce the weavings, and also for embroidery
purposes.
In the accompanying Diagram the dotted red lines a, a, represent the
bobbin threads, and the full or regular blue lines b, b, represent the warp
threads, by which it will be seen that every third bobbin thread a in the
groundwork or net is required to take part in the crossings of every
alternate wail of the net instead of working straight down as hereto-
fore, when making that description of ground or net, known in the
English lace trade as straight down cross net or four-bar net, but in the
French lace trade as bishop's net, by which means the groundwork or
net of the fabric will be produced one-third coarser than the gauge of the
machine.

page_text: The mode of carrying this Invention into effect will be so easily under-
stood by a competent workman acquainted with lace machinery, aided
by the accompanying Diagram, that it is altogether unnecessary to
describe every revolution of the machine while making the groundwork
or net, and it is all the more unnecessary since I make no claim to any
peculiar mode of twisting or plaiting or to any peculiar arrangement of
bars for operating the threads; but what I do claim is, making the
groundwork or net of lace fabric with the crossings of every alternate
wail composed of two warp threads, and the crossings of the other alter-
nate wail composed of one bobbin thread and one warp thread,
substantially as described.
In witness whereof, I, the said Henry Yates, have hereunto set
my hand and seal, this Sixteenth day of February, in the year of
our Lord One thousand eight hundred and seventy.
HENRY YATES. (L.S.)