IMPROVEMENTS IN BOBBIN NET OR TWIST LACE MACHINERY
Year: 1856

page_text: LETTERS PATENT to James Redgate, Edwin Ellis, and John Cropper, of
Nottingham, for the Invention of "IMPROVEMENTS IN BOBBIN NET OR TWIST
LACE MACHINERY."
Scaled the 20th February 1857, and dated the 22nd December 1856.
PROVISIONAL SPECIFICATION left by the said James Redgate, Edwin
Ellis, and John Cropper at the Office of the Commissioners of Patents,
with their Petition, on the 22nd December 1856.
We, JAMES REDGATE, EDWIN ELLIS, and JOHN CROPPER, of Nottingham, do
hereby declare the naturo of the Invention for "IMPROVEMENTS IN BOBBIN NET
OR TWIST LACE MACHINERY," to be as follows:-
This Invention has for its object improvements in bobbin net or twist lace
machinery. For these purposes, when making traversed bobbin net or twist
lace, spindles with cops, (either of single yarn or double yarn) are used, and
such spindles are supported in suitable frames or apparatus to allow of the
same (with the spindles) being traversed from one end of the machine to the
other in the front row, and then to be transferred from the front to the back row
and be traversed in an opposite direction, the traversing being by preference
arranged to be in the direction to put on twist to the single or double yarn.
In order to obtain speed, the carriages are moved to and fro in their combs or
bolts in the following manner :-The speed of the driving bars is made greater
than that which results from. the gravity of the carriages in their combs or

page_text: bolts, so that when the carriages are driven over by either driving bar against
the other driving bar the carriages will not descend by their gravity so fast as
such driving bar will drive them, by which arrangement the driving bar which
has driven the carriages through between the warp threads into the opposite
combs or bolts may get away from touching the carriages, and allow the warp
threads to shog or move without having to force their way between the
carriages and the driving bar which has last driven the carriages through
between the warp threads, and at the same time it will not be necessary to
leave any play for the carriages between the two driving bars, for at the last
movement of their swing they will touch both the driving bars. In some
cases catch bars are used to act as driving bars as well as catch bars. The
two catch bars are arranged to swing together by suitable swing frames at the
ends of the machine, and they are each arranged to act as a catch bar to take
or draw the carriages into their combs or bolts towards the last portion of their
swing, and they are each arranged to act as a driving bar when coming up to
the warp threads, and as a catch bar when moving away from the warp
threads.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Redgate, Edwin Ellis, and John Cropper in the Great
Seal Patent Office on the 22nd June 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
REDGATE, EDWIN ELLIS, and JOHN CROPPER, of Nottingham, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of December, 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 James Redgate, Edwin Ellis, and John Cropper, Her special licence that
we, the said James Redgate, Edwin Ellis, and John Cropper, our executors,
administrators, and assigns, or such others as we, the said James Redgate,
Edwin Ellis, and John Cropper, 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 BOBBIN NET OR TWIST LACE MACHINERY," upon the condition (amongst
others) that we, the said James Redgate, Edwin Ellis, and John Cropper, our

page_text: wipers g; they are properly grooved to receive the threads, and retain each one in
its place. The requisite tension is supplied to each thread by means of separate
weights ii. The threads pass from their cops first beneath the guides d', d',
of the hinged flap or feeder d, over the side of the trough c, then under the
wire rod or weight f, then up between the wipers g, g, over the guides h, h,
through the mails attached to the weights i, i, and through the sley to the
guides of the lace machine. And in order to assist the delivery of the threads
from the cops, the hinged flap or feeder d is caused to move outwards on its
hinges, so as to draw off from the cops the desired quantity of thread. For
this purpose there is formed on or attached to each flap d an arm extending
outwards, which is acted upon by the one or other of the bars k, k, which
receive a slight up-and-down motion by means of the excentric / on the driving
shaft. When it is desired to make traversed bobbin net or twist lace by
traversing the warps, then spindles with cops are to be used, in like manner to
what has heretofore been practised in traversed warp twist lace machinery, and
which is well known, such machines being modified to carry spindles with
cops in place of the spools heretofore used, which will readily be done by a
mechanic acquainted with traverse warp twist lace machinery. The above-
described mode of working is, however, preferred, as the speed of production is
greater.
In the second part of our Invention, which also relates to machinery for tho
production of bobbin net and twist lace, the speed of the driving bars is made
greater than that which results from the gravity of the carriages in their combs
or bolts, so that when the carriages are driven over by either driving bar
against the other driving bar the carriages will not descend by their gravity so
far as such driving bar will drive them, by which arrangement the driving bar
which has driven the carriages through between the warp threads into the
opposite combs or bolts may get away from touching the carriages, and allow
the warp threads to shog or move without having to force their way between
the carriages, and the driving bar which has last driven the carriages through
between the warp threads, and at the same time it will not be necessary to
leave any play for the carriages between the two driving bars, for at the last
moment of their swing they will touch both driving bars.
And in order to render the same perfectly well understood, we will refer to
the Drawing B.
Figure 4 shews so much of a sec
lace machine as will serve to illustrate this second part of our Invention. The

page_text: arrangement of this machine is very similar to that for which Letters Patent
were obtained by James Redgate, James Thornton, and Edwin Ellis, No.:
2630, bearing date December 14th, 1854, only that either of the driving
bars a, a, after having driven the carriages over against the other driving bar
the proper distance, such bar is caused to rise on the centre a', on which it
works, in such manner as to get away from touching the carriages, whereby.
the warp threads are permitted to assume a perpendicular position instead of
remaining pushed against the carriages, by which the shogging of the warp:
threads is greatly facilitated, and the warp threads are not compelled to force
their way between the carriages, and the driving bar a which has last driven
the carriages between the warp threads.
.
According to another part of our Invention, we cause the two catch bars to
swing together (by suitable swing frames at the ends of the machine), and they:
are each arranged to act as a catch bar to take or draw the carriages into their
combs or bolts towards the last portion of their swing, and they are each
arranged to act as a driving bar when coming up to the warp threads, and as
a catch bar when moving away from the warp threads.
We will now proceed to describe the Drawings C.
DESCRIPTION OF THE DRAWINGS C.
Figure 5 is a transverse vertical section, and Figure 6 is an end elevation, of
a machine constructed in accordance with this part of our Invention. Figures 7
shew a pair of lace wheels suitably cut to produce lace such as represented by
the magnified view, Figure 8; Figure 9 shews views of one of the bobbins and
carriages separately; Figure 10 shews a lead of guides, such as we use to
support the upper portions of the carriages; and Figure 11 shews several
views of a lead of combs. a is the main shaft, or driving axis, having thereon
at either end a crank b, which, by connecting rods c, c, give motion to the
swing frames d, d, to each of which both the catch bars are attached, so that
the two catch bars at all times swing together. The axes e, e, of the driving
or catch bars f, f, extend from one of the swing frames d to the other.
The driving or catch bars are mounted on arms f', f', and they are
caused to move on their centres or axes e, e, by means of the arms g, g, they
being also connected to the axes e, e. The arms g, g, are provided with
trucks g', g', which are passed into the fixed curved guides or slots h, h, by.
5 which means the bars f. f. are caused to act either as catch or as driving bars,
as required, the form of the fixed curved guides governing the action of the
catch bars on the carriages. In order to support the upper portions of the
carriages, guides i, i, are used, connected to axes i, ; they receive motion

page_text: from an excentric mounted on the main shaft or driving axis a, as shewn in
the Drawings.
Having thus described the nature of our Invention, and the manner of per-
forming the same, we would have it understood that we make no claim to any
of the mechanical parts separately, nor do we confine ourselves to the details;
but what we claim is;-
First, the arranging of bobbin net or twist lace machines in such manner
as to employ cops on spindles for the warps of the fabrics.
Secondly, we claim the combining the parts of twist lace machinery in such
manner as to cause the driving bars to get away from the carriages to facilitate
the shogging of the warp threads.
And, thirdly, we claim the application of the two catch bars to the same
swing frames and causing them to act as catch and driving bars.
In witness wliereof, I, the said Edwin Ellis, have hereunto set my hand
-and seal, this Nineteenth day of June, in the year of our Lord One
thousand eight hundred and fifty-seven.
Witness,
FRED HARRIS.
EDWIN ELLIS. (L.B.)