IMPROVEMENTS IN SPINNING AND TWISTING MACHINERY
Year: 1874

page_text: LETTERS PATENT to Samuel Edward Asquith and Frederic Alexander
Greenwood, both of Leeds, in the County of York, for the Invention
3
IMPROVEMENTS IN
SPINNING AND
TWISTING MACHINERY.
Sealed the 16th October 1874, and dated the 13th August 1874.
PROVISIONAL SPECIFICATION left by the said Samuel Edward
Asquith and Frederic Alexander Greenwood at the Office of the
Commissioners of Patents, with their Petition, on the 13th August
1874.
We, SAMUEL EDWARD ASQUITH and FREDERIC ALEXANDER GREEN-
WOOD, both of Leeds, in the County of York, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN SPINNING AND TWISTING
MACHINERY," to be as follows:-
Our Invention relates to improvements in the machine for which we
obtained Letters Patent bearing date 5th April 1872, No. 1000, and
consists in applying to the twisters therein described mechanism for
facilitating the threading of any of the rovings which may break in
passing through the twisters without stopping the others.

page_text: According to our Invention each twister is constructed with a movable
tongue, which when thrown back enlarges the eye of the twistor
sufficiently to enable the roving to be readily passed through. A sliding
bolt is also provided, so connected to the tongue as to throw it back and
stop the twister simultaneously. This bolt is operated by the movement
of a hinged frame in which the top roller is mounted, so that by simply
throwing back the top roller out of the way when a roving breaks the
twister is stopped, and the eye opened out for the purpose above
mentioned.
Our Invention relates, 2ndly, to the well-known ring and traveller
throstle frame, and consists in a means of regulating the drag simul-
taneously for all the spindles. Heretofore to vary the drag it has been
usual to change the traveller for a lighter or a heavier one, as the case
may be, whereby much time is lost.
Our Invention consists in a cylinder or cup rising through each ring
to a certain height above, according to the amount of drag required.
The said cups or cylinders are all fixed on a rail carried beneath the
lifter rail, and connected thereto by adjusting screws worked by a worm
shaft, whereby the drag on all the spindles may be regulated simul-
taneously. Each cup or cylinder is so connected to its rail that it may
be adjusted independently of the others, if desired.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Samuel Edward Asquith and Frederic Alexander
Greenwood in the Great Seal Patent Office on the 11th February
1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, SAMUEL
EDWARD ASQUITи and FREDERIC ALEXANDER GREENWOOD, both of
Leeds, in the County of York, send greeting.
7
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Thirteenth day of August, in the year
of our Lord One thousand eight hundred and seventy-four, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Samuel Edward Asquith and Frederic

page_text: Alexander Greenwood, Her special licence that we, the said Samuel
Edward Asquith and Frederic Alexander Greenwood, our executors,
administrators, and assigns, or such others as we, the said Samuel
Edward Asquith and Frederic Alexander Greenwood, 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, tho
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
SPINNING AND TWISTING MACHINERY," upon the condition (amongst others)
that we, the said Samuel Edward Asquith and Frederic Alexander
Greenwood, our executors or administrators, by an instrument in
writing under our, 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 we, the said Samuel Edward Asquith and
Frederic Alexander Greenwood, 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, reference being had to the accompanying Sheet of Drawings,"
and to the letters and figures marked thereon (that is to say) :—
Our Invention relates to improvements on the machine for which
we obtained Letters Patent bearing date 5th April 1872, No. 1000, and
consists in applying to the twisters therein described mechanism for
enabling any of the rovings which may break in passing through the
twisters to be mended or replaced without stopping the others.
According to this part of our Invention each twister is composed of
two parts, one fixed and the other movable, so as to enlarge the eye of
the twister sufficiently to enable the roving to be readily passed through.
A sliding bolt is also provided, so connected to the said movable part as
to throw it back to enlarge the eye as before mentioned and stop the
twister simultaneously. This bolt is operated by the movement of a
hinged frame in which the top roller is mounted, so that by simply
throwing back the top roller out of the way when a roving breaks the

page_text: twister is stopped, and the eye opened out for the purpose above
mentioned.
Our Invention relates, secondly, to the well-known ring and traveller,
and consists in a means of regulating the drag simultaneously for all the
spindles. Heretofore to vary the drag it has been usual to change the
traveller for a lighter or a heavier one, as the case may be, whereby
much time is lost.
Our Invention consists in a cylinder or tube rising through each
"ring" to a certain height above it, according to the amount of drag
requird. The said tubes or cylinders are made with a smooth edge at
the top, with which edge the yarn comes in contact. The yarn first
passes down through the "traveller" in the ordinary way, and then up*
over the edge of the cylinder or tube to the bobbin (or paper tube or
other appliance), which is fixed on the spindle and rotates therewith,
whereby the drag is produced, the same being regulated as required by
varying the height of the cylinders or tubes. The said tubes or cylinders
are all fixed on a rail attached to the under side of the ordinary lifter
rail, and connected thereto by adjusting screws worked by a longitudinal
worm shaft, or screw, or other appliance, whereby the drag on all the
spindles may be regulated simultaneously. Each tube or cylinder is
however so connected to its rail that it may be adjusted independently of
the others, if desired.

page_text: eye at the end for the passage of the roving g. The tongue i is provided
with a lever arm connected to a sliding rod m working through the
flange of the twister spindle, and operated by a guide ring n fixed to a
sliding bolt o fitted in guides in the bearings c. The rod m runs around
inside the ring n, and is furnished with two shoulders m³, one on either
side of the ring, so that it is free to rotate with the twister, and at same
time to be moved lengthwise by the guide ring n when the bolt o is
moved to or fro. The bolt is operated by a hinged frame P in which
the top roller f is mounted, q being an arm working through a slot in
the bolt o, which it moves backwards when the frame p is thrown up, as
shown in Figure 2. The frame p turns loose on the pin 1 of its hinge,
and has two stops 2-2, one or other of which abuts against a stud 3
fixed on the pin 1, and turns the same sufficiently to cause the radial
arm q to move the bolt to and fro as required. An eccentric or other
means may however be employed for operating bolt o, if preferred.
When the bolt o is moved back the rear end comes in contact with the
pin or stop on the twister spindle 6, which is thus instantly stopped at
the same time that the roller fis thrown up out of the way, and the eye
of the twister opened out, as shown in Figure 2.
It is obvious that instead of the twister having a movable tongue the
latter might be fixed, and the other part of the twister made movable
and operated in the same way as above described with regard to the
tongue, as shown in Figure 4 and Figure 4*.
Figure 5 shows in front elevation a portion of the lifter rail and one
spindle with its "ring and traveller," and Figuro 6 a cross section of
same. A is the ordinary lifter rail; B, the "ring;" and C, the traveller
constructed in the usual manner; D, the spindle; and E, the bobbin
tube or other appliance thereon; F is a hollow cylinder or tube fixed on
a rail G attached beneath the lifter rail A, the said cylinder or tube F
passing up inside the ring B, and between it and the bobbin E. The
cylinder or tube F is attached to the rail G by collars F¹, F", above and
below, screwing on a thread cut on the tube F, as seen, so that by
altering these collars the several tubes F can be separately adjusted at
any height relatively to the ring B. The rail G, which is connected to
the lifter rail A and of course participates in its up-and-down movement,
is made capable of adjustment nearer to or farther from the lifter rail, so
that the whole of the tubes F can be simultaneously raised or lowered
relatively to the rings B, thereby enabling the drag on the whole of the

page_text: spindles to be regulated at the same time. For this purpose, the rail G
is connected at intervals to rail A. by adjusting screws H working with
collars above and below each rail G, and through nuts I fixed on rail A.
On the lower ends of these screws are keyed worm wheels K operated by
worms on a longitudinal shaft L terminating in a small handle or wheel,
by which the shaft can be readily rotated to adjust the drag, as required,
without stopping the machine.
Having described the nature of the Invention, and the manner of
performing the same, we declare that what we claim as our Invention
to be protected by the herein-before in part recited Letters Patent 1
is,―
1st. The twister before mentioned, so constructed as to permit of its
eye being opened out, combined with a device for stopping it, operated
by a binged frame in which the top roller is mounted, substantially as
and for the purposes herein described and shown in the Drawings.
2ndly. The combination with the "ring" and traveller of a cylinder
or tube for producing the necessary drag, as set forth.
]
3rdly. The means of adjusting the height of the said tubes relatively
to the rings and travellers simultaneously or separately for the whole or
any of the spindles, substantially as shown and described for the purpose 2
specified.
In witness whereof, we, the said Samuel Edward Asquith and
Frederic Alexander Greenwood, have hereunto set our hands and
seals, this Tenth day of February, in the year of our Lord One
thousand eight hundred and seventy-five.