IMPROVEMENTS IN THE MANU- FACTURE OF TWIST LACE AND WEAVINGS
Year: 1856

page_text: LETTERS PATENT to John Dearman Dunnicliffe, of Nottingham, Lace
Manufacturer, and Stephen Bates, of Radford, in the County of
Nottingham, Machinist, for the Invention of "IMPROVEMENTS IN. THE
PROVISIONAL SPECIFICATION left by the said John Dearman Dunnicliffer
and Stephen Bates at the Oflice of the Commissioners of Patents, with:
their Pétition, on the 25th March 1856.
We, JOHN DEARMAN DUNNICLIFFE, of Nottingham, Lace Manufacturer, and
STEPHEN BATES, of Radford, in the County of Nottingham, Machinist, do
hereby declare the nature of the Invention for "IMPROVEMENTS IN THE MANU-
FACTURE OF TWIST LACE AND WEAVINGS," to be as follows:-
Jeretofore, in the constructing and working of bobbin net or twist lace-
machines there are two classes of threads used, "warp threads" and "bobbin
or carriage thread;" and in working to make bobbin net or twist lace and close
weavings, by such machinery, the warp threads have been caused to move in a
direction from end to end of the machines, whilst the bobbin or carriage
threads have been moved transversely, or from front to back and back to front
of the machines..
Now, our improvements consist of arranging the machinery that some of the

page_text: warp threads may be caused to move in a direction from back to front and
from front to back of the machines, as well as the bobbin or carriage threads,
whilst other of the warp threads, as heretofore, are moved in a direction from
end to end of the machines.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Dearman Dunnicliffe and Stephen Bates in the Great
Seal Patent Office on the 25th September 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JoпN
DEARMAN DUNNICLIFFE, of Nottingham, Lace Manufacturer, and STEPHEN
BATES, of Radford, in the County of Nottingham, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her. Letters
Patent, bearing date the Twenty-fifth day of March, in the year of our Lord
One thousand eight hundred and fifty-six, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said John Dearman Dunnicliffe and Stephen Bates, Her special licence that
we, the said John Dearman Dunnicliffe and Stephen Bates, our executors,
administrators, and assigns, or such others as we, the said John Dearman
Dunnicliffe and Stephen Bates, our 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 "IMPROVE-
MENTS IN THE MANUFACTURE OF TWIST LACE AND WEAVINGS," upon the condition
(amongst others) that we, the said John Dearman Dunnicliffe and Stephen
Bates, our executors or administrators, by an instrument in writing under
our or their hands and seals, or under the hand and seal of one of us
or them, 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 late of the said Letters Patent.
NOW KNOW YE, that I, the said John Dearman Dunnicliffe, on behalf of
myself and the said Stephen Bates, do hereby declare the nature of the said
Invention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement thereof.
that is to say

page_text: Heretofore, in the constructing and working of bobbin net or twist lace
machines there are two classes of threads used, "warp threads " and "bobbin
or carriage threads;" and in working to make bobbin net or twist lace and
close weavings, by such machinery, the warp threads have been caused to move
in a direction from end to end of the machines, whilst the bobbin or carriage
threads have been moved transversely, or from front to back and back to front
of the machines.
Now, our improvements consist of arranging the machinery that some of the
warp threads may be caused to move in a direction from back to front and
from front to back of the machines, as well as the bobbin or carriage threads,
whilst other of the warp threads, as heretofore, are moved in a direction from
end to end of the machines.
Having thus stated the nature of our Invention, we will now proceed to
describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a transverse section of so much of a bobbin net machine as
will enable us to describe our present improvements, which relate to the
arrangement and working of the guide bars which actuate the warp threads.
Figures 2 and 3 show parts of side views of some of the guide bars, with
their guides in the different positions they assume when working to produce
close weavings at particular parts of a breadth. a, a, are a series of
ordinary perforated guide bars, which actuate the warp threads for making
the ordinary ground or body of the fabric; b, b, are a series of guide bars,
which actuate the warp threads which are employed to produce the close
weavings; and c is a guide bar, moving on axes by which the guides and
warp threads, actuated by the guide bar c, may be moved from front to
back and from back to front of the machine in the same direction as the
carriages with the bobbin threads; and the guide bar c is also capable of
moving endways. The form and arrangement of the guide bars and of the
guides may be varied without departing from our Invention; and Figure 4
shows another form of guide bar and guides; b, b, the guides, being formed
out of the solid bars, as shown.
We will suppose the machine to be arranged for making that class of lace
known in the trade as platt or Valenciennes lace. The front guide bars,
marked a, Figures 1 and 2, are of the ordinary character, and are employed
to make that part or portion of the breadth called the ground or body, or back
of the breadth; and, in this case, are shewn as working in combination with
those which constitute our present improvements, which are employed for

page_text: making the woven edge and purl of the breadth. The guide bars marked b
are those which actuate the warp threads for producing the close weavings,
and in this arrangement they are placed at the back of the ordinary guide
bars a.
The Drawing, Figures 1 and 2, show the manner in which the guide bars
are arranged before commencing the ordinary movements of the machine.
The transverse guides c, carrying the transverse warp weft threads, commence
their movements from the back to the front of the machine, and the weft
bobbin threads follow in the same direction; the bobbin weft threads again
pass from front to back, leaving the transverse warp weft threads still in front.
The cranked guides or guide bars (as many as are employed) move to the
left, and the straight guides & move to the right; the bobbin weft threads
again pass from back to front, and twist with the transverse warp weft thread
as long as desirable, for making the "ticks;" they then twist or plat with the
adjoining pillows, and again twist together for making the "ticks," as before.
The transverse weft warp threads c. together with the weft bobbin threads,
then commence their movement from front to back, and work in the back
in the same mauner as described when working in the front, and will, if
required to make the purls on the edges of the breadths, continue there to
twist with the weft bobbin threads for that purpose.
Having thus described the nature of our Invention, and the manner of
performing the same, we would have it understood that we do not confine
ourselves to the precise details herein shewn and described; but what we
claim is, the use of warp guides having a motion in the direction from front
to back of the machine, in addition to the ordinary endway motion.
In witness whereof, I, the said John Dearman Dunnicliffe, have hereunto
set my hand and seal, this Twenty-fifth day of September, in the year
of our Lord One thousand eight hundred and fifty-six.
Witness,
J. G. TONGUE.
JNO. D. DUNNICLIFF. (L.s.)