In- PROVEMENTS IN MACHINES FOR TWISTING AND DOUBLING YARN AND THREAD
Year: 1864

page_text: LETTERS PATENT to Bartholomew Gyte and Martin Walsh, both of
Edale, in the County of Derby, Overlookers, for the Invention of "In-
PROVEMENTS IN MACHINES FOR TWISTING AND DOUBLING YARN AND
THREAD."
PROVISIONAL SPECIFICATION left by the said Bartholomew Gyte and
Martin Walsh at the Office of the Commissioners of Patents, with their
Petition, on the 14th May 1864.
We, BARTHOLOMEW GYTE and MARTIN WALSH, both of Edale, in the
County of Derby, Overlookers, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINES POR TWISTING AND DOUBLING YARN
AND THREAD," to be as follows:-
Our Invention is applicable to the ordinary throstle doubling machines, and
it consists, first, in an improved mode of supporting the top roller in order that
when the yarn or thread breaks or snarls the top roller may be taken out of
contact with the bottom roller to prevent waste. In performning our Inven-
tion each top roller is supported in a swing frame, swivelling in the back rail,

page_text: the yarn or thread passes over the front of the swing frame, and holds the top
roller in position as long as the yarn or thread continues to be supplied to the
spindle; but when the yarn or thread breaks, or snarls are produced above the
spindle point, the swing frame swivels partly round, and the top roller slides
back out of contact with the bottom roller, thus preventing any more of the
yarn or thread being drawn forward.
Secondly, in an improved combination of machinery for effecting the same
object as the above. Between the usual creel or trough and the rollers is
placed a rod, on which are short levers, the rod and the levers having slots
through which the yarn or thread. passes in going to the rollers. The yarn or
thread in passing from the rollers to the spindle on which it is wound, is taken
through an eye in the long arm of a lever, near the other end of which a
weight is suspended; the two levers are connected by a link so long as the
yarn or thread continues to pass to the spindle through the eye above referred
to; the slot in the lever and rod coincide to allow the yarn or thread to pass,
but as soon as the yarn or thread breaks, or snarls are produced, the long
armed lever is raised by the weight descending, and the yarn or thread is held
between the slots in the rod' and lever, thus preventing any more yarn being
drawn forward.
Thirdly, in placing a wire furnished with bristles or other suitable
substance between the rollers and the spindles between which bristles or
other equivalent the yarn or thread passes, and by which, when it breaks,
it is prevented from becoming entangled with the yarns or threads of the
other spindles.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Bartholomew Gyte and Martin Walsh in the Great Seal
Patent Office on the 12th November 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, BAR-
THOLOMEW GYTE and MARTIN WALSH, both of Edale, in the County of Derby,
Overlookers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourteenth day of May, in the year of our Lord One
thousand eight hundred. and sixty-four, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said. Bartholomew Gyte and Martin Walsh, Her special license that we, the

page_text: said Bartholomew Gyte and Martin Walsh, our executors, administrators, and
assigns, or such others as we, the said Bartholomew Gyte and Martin
Walsh, 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 MACHINES FOR
TWISTING AND DOUBLING YARN AND THREAD," upon the condition (amongst
others) that we, the said Bartholomew Gyte and Martin Walsh, our
executors or administrators, by an instrument in writing under our, or
their, or one of our or 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 we, the said Bartholomew Gyte and Martin Walsh,
do hereby declare the nature of our said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in
and by the following statement (that is to say) :-
:―
Our Invention is applicable to the ordinary throstle doubling machines, and
it consists, first, in an improved mode of supporting the top roller, in order
that when the yarn or thread breaks or snarls the top roller may be taken out
of contact with the bottom roller to prevent waste. In performing our Inven-
tion each top roller is supported in a swing frame, swivelling in the back rail,
the yarn or thread passes over the front of the swing frame, and holds the top
roller in position as long as the yarn or thread continues to be supplied to the
spindle; but when the yarn or thread breaks, or snarls are produced above the
spindle point, the swing frame swivels partly round, and the top roller slides
back out of contact with the bottom roller, thus preventing any more of the
yarn or thread being drawn forward.
Secondly, in placing a wire furnished with bristles or other suitable
substance between the rollers and the spindles, between which bristles or
other equivalent the yarn or thread passes, and by which when it breaks
it is prevented from becoming entangled with the yarns or threads of the
other spindles.
And in order that our Invention may be fully understood, and readily
carried into operation, we will proceed to describe the accompanying Sheet
of Drawings, reference being had to the figures and letters marked
thereon.

page_text: Figure 1 is an elevation, partly in section, of part of an ordinary throstle
doubling frame, to which our improvements are applied; Figure 2 is a plan
of the same; and Figure 3 is a front view of the swing frame. In Figure 1
a is the trough; b, the rail supporting the guide pegs c; d is the cap bar; e,
the bottom roller; and f, the top roller; g is the guide rod above the spindles h,
to which the flyers i are fixed; and are the bobbins on which the doubled
yarn or thread is wound. All the parts above enumerated are made in the
usual manner.
The first part of our Invention consists in supporting the top rollers f in the
swing frames k, which swivel on knife-edge centres in the slots in the cap bar d,
the yarn or thread after passing between the top and bottom rollers passes over
the front of the swing frame k, and the tension of the yarn or thread between
the spindles and the rollers holds the swing frame in the position shewn by
the full lines, the stop wire 7 pressing against the end of the cap bar pre-
venting the front of the swing frame from coming in contact with the bottom
roller e.
When the yarn or thread breaks, or snarls are produced above the
spindle point, the swing frame swivels partly round owing to the preponderating
weight being to the left hand of the fulcrum, and the top roller slides back as
shewn by dotted lines in Figure 1, or out of contact with the bottom roller,
thus preventing any more yarn or thread being drawn forward, and avoiding
the waste which would be occasioned by the yarn or thread lapping around
the bottom roller. As soon as the broken end has been pieced, or the snarls
have been removed, the swing frame resumes its original position, and the top
roller drops again into its bearings, and in contact with the bottom roller, after
which the operations proceed as before.
The second part of our Invention is also shewn in Figure 1. m is a small
circular brush, extending the whole length of the frame, and placed in any
convenient position between the tops of the spindles h and the roller e; the
brush is composed, by preference, by securing bristles between twisted wires,
and the yarns or threads in passing from the rollers to the guide rod g enter
between the bristles, consequently when an end breaks it is held by the bristles
and prevented from becoming entangled with the yarns or threads of the other
spindles.
We wish to remark that many other equivalents may be substituted for the
circular brush described.
Having thus stated the nature of our Invention, and described the manner
of performing the same, we declare that we claim,―
First, supporting the top rollers of twisting and doubling machines in swing
frames, in the manner and for the purposes described.

page_text: And, secondly, the application of the circular brush m or other equivalent
to twisting and doubling machines for the purpose described.
In witness whereof, we, the said Bartholomew Gyte and Martin Walsh,
have hereunto set our hands and seals, the
One thousand eight hundred and sixty-four.
day of November,
BARTHOLOMEW GYTE. (Ls.)
MARTIN WALSH.
(LS.)