IMPROVEMENTS IN WARP MACHINERY.
Year: 1856

page_text: LETTERS PATENT to John Dearman Dunnicliff, of Hyson Green; in the
County of Nottingham, Lace Manufacturer; and. Walter Dexter, of the
same Place, Mechanic, for the Invention of "IMPROVEMENTS IN WARP
MACHINERY.
Sealed the 9th January 1857, and dated the 23rd October 1856.
PROVISIONAL SPECIFICATION left by the said John Dearman Dunnicliff
and Walter Dexter at the Office of the Commissioners of Patents, with
their Petition, on the 23rd October 1856.
We,. JOHN, DEARMAN DUNNICLIFF, of Hyson Green, in the County of
Nottingham, Lace Manufacturer, and. WALTER DEXTER, of the same Place,
Mechanic, do hereby declare the nature of the Invention for "IMPROVEMENTS
IN WARP MACHINERY," to be as follows:-
Heretofore, in the construction and working of warp machinery, it has been
usual for the guide bars, to be shogged or moved endwise, in order to produce
by the lapping of their threads and by their looping into each other the great
variety of patterns of fabrics warp machinery is known to be capable of pro-
ducing. Now, our improvements consist in causing the warp or guide bars of
warp machinery, in addition to shogging or moving endways, as heretofore, to

page_text: cause the guides or lapping instruments of one guide bar to pass between the
guides or lapping instruments of another guide bar, so as for a time to reverse
the positions of the guides, and from time to time to change the positions
of the respective guide bars, so that the guides or instruments of one bar may
pass between different spaces (at one time than at another) of the other guide
bar or bars.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Dearman Dunnicliff and Walter Dexter in the Great
Seal Patent Office on the 23rd April 1857.
TO ALL TO WHOM THESE PRESENTS, SHALL COME, we, JOHN
DEARMAN DUNNICLIFF, of Hyson Green, in the County of Nottingham, Lace
Manufacturer, and WALTER DEXTER, of the same Place, Mechanic, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-third day of October, in the year of our Lord
One thousand eight hundred and fifty-six, in the twentieth. year of: Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,
the said John Dearman Dunnicliff and Walter Dexter, Her special licence
that we, the said John Dearman Dunnicliff and Walter Dexter, our executors,
administrators, and assigns, or such others as we, tho said John Dearman
Dunnicliff and Walter Dexter, 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 "IMPROVEMENTS IN WARP MACHINERY," upon the condition (amongst
others) that we, the said John Dearman Dunnicliff and Walter Dexter; 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 par
ticularly 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 John Dearman Dunnicliff; on behalf of
myself and the said Walter Dexter, do hereby declare the nature of the said

page_text: 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-
Heretofore, in the construction and working of warp machinery, it has been
usual for the guide bars to be shogged or moved endwise, in order to produce
by the lapping of their threads and by their looping into each other the great
variety of patterns of fabrics warp machinery is known to be capable of pro-
ducing. Now, our improvements consist in causing the warp or guide bars of
warp machinery, in addition to shogging or moving endways, as heretofore, to
cause the guides or lapping instruments of one guide bar to pass between the
guides or lapping instruments of another guide bar, so as for a time to reverse
the positions of the guides, and from time to time to change the positions of
the respective guide bars; so that the guides or instruments of one bar may
pass between different spaces (at one time than at another) of the other guide
bar or bars.
And in order that our Invention may be most fully understood, and readily
carried into effect, we will proceed to describe the Drawings hereunto
annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a transverse section of so much of a warp machine as will
enable us to describe our present improvements, and as the nature of warp
machinery is well understood, it will only be necessary for us to describe those
parts which relate to our present improvements, together with the working of
a course according to the cut of wheels shewn, in order to enable a workman
acquainted with this class of machinery to understand the nature of our im-
provements. a, b, are two guide bars, each carrying as many guides as there
are needles on the needle bar c. The guide bars a, b, are supported on axes,
carried by the "machine," and are capable of moving or shogging endways in
the ordinary manner. The guide bar bis capable of moving on its axes in-
dependently of the guide bar a, in order to cause it to assume different positions
in relation to the guides of the guide bar a during the working of a course,
and so that the guides of the guide bar b may be caused to pass from time to
time between different spaces of the guides carried by the guide bar a; or the
guide bars a and b may be varied in their mode of working to what is shown;
and produce a similar changing of the guides as that obtained by the guide
bar moving on axes. The guide bar a in this arrangement is supported
on axes a¹ at each end, and moves endways in bearings carried by the
enable us to describe our present improvements, and as 'the nature of warp
machinery is well understood, it will only be necessary for us to describe those
parts which relate to our present improvements, together with the working of
a course according to the cut of wheels shewn, in order to enable a workman
acquainted with this class of machinery to understand the nature of our im-
provements. a, b, are two guide bars, each carrying as many guides as there
are needles on the needle bar c. The guide bars a, b, are supported on axes,
carried by the "machine," and are capable of moving or shogging endways in
the ordinary manner. The guide bar bis capable of moving on its axes in-
dependently of the guide bar a, in order to cause it to assume different positions
in relation to the guides of the guide bar a during the working of a course,
and so that the guides of the guide bar b may be caused to pass from time to
time between different spaces of the guides carried by the guide bar a; or the
guide bars a and b may be varied in their mode of working to what is shown;
and produce a similar changing of the guides as that obtained by the guide
bar moving on axes. The guide bar a in this arrangement is supported
on axes a¹ at each end, and moves endways in bearings carried by the

page_text: "machine," and a² are arms, fixed on the guide bar a, the other ends of which
have slots formed in them, which support the arms a² on the pins a³, fixed on
the arms a', carried by the "machine." The guide bar & is supported on axes
at each end, moving in bearings carried by the "machine;" and 63 are arms
fixed on the guide bar b, which are connected by pin joints 63 to the adjustable
links b*, carried by the sinker bar arms b, by which the guide bar b is caused
to move on its axes 6, to assume the position required during the working of
a course, as hereafter described.
The mode of giving motion to the "machine;" to the sinker frame, and to
the presser bar being well understood, and clearly shewn in the Drawings, it
will not be necessary further to describe the same, therefore we will now
proceed to describe the working of a course on the machine."
1.
Suposing the machine to have gone in, and the sinker frame to have gone
over the arch, and the bottom guide bar a to have passed up between the
needles, the parts will assume the position shewn in Figure 1. The bottom
guide bar a, which contains the face threads of the fabric, shogs to the right
or left, as the case may be, and then passes down through the needles. The
machine then commences its outward movement, the sinker bar rises at the
same time, unlocking or separating the guide bars by means of the links 6', as
shewn in Figure 2. The top bar b is then caused to shog, the machine then
commences its inward movement, the sinker bar at the same time moving
down allows the guides in the top guide bar 6 to pass between the spaces of
the guides in the bottom guide bar a, as shown: The machine commences its
upward-movement, passing the guides of the bottom guide bar "a" through
between the needles, which completes the course.
In this description we have shewn an arrangement for making what is com-
monly called a fleeced or plaited taffeta, with two bars, and it will be seen by
this arrangement that the soft materiál or plating thread which is being
worked by the guides in the top guide bar b'is not passed between the needles,
but is banked over the bottom guide bar threads at the time when the machine
is out; as before described.
'
We would remark, that although we have shown only two guide bars
capable of working to produce a particular fabric according to our Invention,
it will be evident to the workman that other fabrics may be produced by
two guide bars according to our Invention, and it will also be evident to the
workman that other numbers of guide bars may be arranged to work together
so as similarly from time to time to reverse or change the positions of the
guides or lapping instruments of the several bars employed may pass between

page_text: lifferent spaces of the guides of the neighbouring bars of guides, according to
be nature of the work required.
What we claim is, the mode of combining the guide bars of warp machinery,
s herein described...
In witness whereof, I, the said John Dearman Dunnicliff, have hereunto
set my hand and seal, this Twentieth day of April, in the year of our
Lord One thousand eight hundred and fifty-seven.
Witness,
S. CARPMAEL.
JNO. D. DUNNICLIFF. (L.s.)