IMPROVEMENTS IN MACHINERY OR APPARATUS FOR WINDING YARNS OR THREADS
Year: 1868

page_text: LETTERS PATENT to William Bruce Thompson and William Gall,
both of Dundee, in the County of Forfar, North Britain, for the
Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR WINDING
YARNS OR THREADS."
PROVISIONAL SPECIFICATION left by the said William Bruce
Thompson and William Gall at the Office of the Commissioners
of Patents, with their Petition, on the 3rd March 1868.
We, WILLIAM BRUCE THOMPSON and WILLIAM GALL, both of Dundee,
in the County of Forfar, North Britain, do hereby declare the nature
of the said Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
WINDING YARNS OR THREADS," to be as follows, that is to say :-
This Invention, which relates to an improved arrangement or con-
struction of machinery and of mechanism by which the spindles are
stopped when the pirns or cops are fully built up, consists in placing
a fast and loose pulley on each spindle whenever a pirn or cop is
formed; both of the pulleys are free to move endwise on the spindle.

page_text: The spindle is also free to move endwise in its bearings while being
driven, this endwise movement being provided for by forming a groove
in the spindle into which a key or feather passing through the driving
pulley is fitted. As the pirn fills the spindle is gradually pushed
upwards, but the driving pulley still remains in the same position
relatively to the driving belt until the "driver" which is placed on
the end of the spindle presses against a sliding bracket to which a
weighted lever is connected. The pulleys are kept together within
the tails of the sliding bracket; as the bracket is pushed upwards by
the pirn or cop as it is formed the weighted lever assumes a perpen-
dicular position, and when it has passed the vertical point it suddenly
falls over, drawing with it the sliding bracket and pulleys, so that the
fast pulley is drawn from under the driving belt and the slack pulley
is passed under the belt,, thereby causing the spindle to stop. The yarn
may be drawn either from a bobbin or reel, the traverse motion being
given by means of a crank on the driving cylinder shaft or by means.
of a pinion keyed on the cylinder shaft actuating a wheel provided
with a crank pin..
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Bruce Thompson and William Gall in 2
the Great Seal Patent Office on the 1st September 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
BRUCE THOMPSON and WILLIAM GALL, both of Dundee, in the County
of Forfar, North Britain, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Third day of March, in the year of
our Lord One thousand eight hundred and sixty-eight, in the thirty-
first year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said William Bruce Thompson and William Gall,
Her special license that we, the said William Bruce Thompson and
William Gall, our executors, administrators, and assigns, or such others
as we, the said William Bruce Thompson and William Gall, our exe-
cutors, administrators, or assigns, should at any time agree with, and
no others, from time to time and at all times thereafter during the

page_text: 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 MACHINERY FOR WINDING YARNS OR THREADS," upon the condition
(amongst others) that we, the said William Bruce Thompson and
William Gall, by an instrument in writing under our 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 William Bruce Thompson and
William Gall, 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 Drawings, and to the letters and figures marked
thereon, that is to say :-
Our said Invention, which relates to an improved arrangement or
construction of machinery and of mechanism by which the spindles
are stopped when the pirns or cops are fully built up, consists in
placing a fast and loose pulley on each spindle; both of the pulleys
are free to move endwise on the spindle. The spindle is also free to
move endwise in its bearings whilst being driven, this endwise movement
being provided for by forming a groove in the spindle, into which
a key or feather passing through the driving pulley is fitted. As the
pirn fills the spindle is gradually pushed upwards, but the driving
pulley still remains in the same position reratively to the driving belt
until the "driver" which is placed on the end of the spindle presses
against a sliding bracket to which a weighted lever is connected. The
pulleys are kept together within the tails of the sliding bracket; as
the bracket is pushed upwards (by the pirn or cop as it is formed) the
weighted lever assumes a perpendicular position, and when it has passed
the vertical point it suddenly falls over, drawing with it the sliding
bracket and pulleys, so that the fast pulley is drawn from under the
driving belt, and the slack pulley is passed under the belt, thereby
causing the spindle to stop. The yarn may be drawn either from a
bobbin or reel, the traverse motion being given by means of a crank

page_text: on the driving cylinder shaft or by means of a pinion keyed on the
cylinder shaft actuating a wheel provided with a crank pin.
And in order that our said Invention may be properly understood
we now proceed more particularly to set forth the system, mode, or
manner in or under which the same is or may be used or practically
carried into effect, reference being had, for the sake of more complete
elucidation, to the Figures upon the explanatory Sheet of Drawings
which we have hereunto appended that is to say :-
Figure 1 is an end elevation of a spindle frame for winding weft-
off reels and bobbins into pirns or cops, as used in the manufacture
of textile fabrics.
The framing A is of the usual open rectangular order, but having
the upper part inclined on both sides, as shown at A, A¹; on these
inclined parts the spindles E are carried as shown and herein-before set
forth. Along the central part of the framing the driving shaft B is
carried on which the spindle driving the pulleys C are placed, over
which the belt D passes which actuate the spindle pulleys F and G.
R, R, are guide rollers for guiding the belt D. On either side of the
framing brackets H are placed, to which other brackets I are attached;
these carry the hollow cone K, and the spindle E passes through a
hole in the lower and smaller end of the .cone. The upper part of the
spindle passes through bearings in the two tails of the sliding brackets L
and the sliding bracket L is connected by the link M to the weighted
pressing and tumbling lever N. On the central shaft B a crank O is
fixed for actuating the rods P, which are connected to and actuate the
transverse lever Q and finger R, by which the yarn is laid upon the pirns
or cops S as they are being built up. A spindle and gear for actuating
the same are shown more distinctly on the enlarged detailed views,
Figures 2 and 3, where the long slot or groove in the spindle E is also
shown to receive the feather or key 6 in the driving pulley F.
Having now described in detail the several parts of our Invention
we may proceed to set forth the mode of operating with the same to
be as follows, that is to say:-The yarn to be wound is brought
either on reels or bobbins, as shown respectively at the left and right
hand sides of Figure 1; it passes thence over the "up-take" lever S;
the yarn passes through an eye in the end of the transverse lever R
from which point it is led to the pirn or cop U, by passing through

page_text: 'the longitudinal slit made in each of the cones K, as shown at Eigure 1.
The pirn or cop as built up pushes the spindle E upwards until the
driver marked a on each spindle comes into contact with the lower
tail of the bracket L, thus as the building proceeds the weighted
lever N is thrown from an inclined into a vertical position, as soon
as it gets beyond which its weight throws it over or causes it to assume
the position shown in red lines in Figure 1, and as the lower tail
of the bracket L bears against the pulley G it is evident that at the
same instant the weighted lever falls into the position last mentioned;
each of the pulleys F and G are raised upwards along the spindle E,
whilst the driving belt is not altered in position therefore, the loose
pulley G is brought into contact with it whilst the fast pulley is
separated from it. The revolution of the spindle being thus stopped,
the pirn or cop U may be "doffed" by the attendant, and the operation
of building another pirn or cop proceeds as herein-before described.
It is to be understood that the preceding Specification although con-
fined for the sake of simplicity to one spindle and its accompaniments
is not intended to apply to one such spindle only in practice, as any
convenient number of them may be adopted. The spindle may also
be placed in a horizontal or vertical position as well as inclined, as
shown in the Drawings. The groove c in the spindle E, Figure 2,
may be cut spirally on the spindle so as to give a smoother sliding
motion.
Having now described the nature of our said Invention, and the
manner in or under which the same is or may be used or practically
carried into effect, we would observe in conclusion that what we
consider novel and original and therefore claim as the Invention
secured to us by the herein-before in part recited Letters Patent is,―
First. The general arrangement, construction, and combination of
parts constituting the mechanism or apparatus, as herein-before de-
scribed, or any mere modification thereof.
Second. The method of throwing the spindles of weft winding
machines out of gear (when the cops or pirns are full) by means of a
weighted tumbling lever connected to a bracket sliding on the spindle,
between the tails of which bracket the spindle pulleys are placed, as
herein-before described, or any mere modification thereof.

page_text: Third. The use of a straight or spiral groove in winding spindles,
as herein-before described and shown in the accompanying Sheet of
Drawings.
In witness whereof, we, the said William Bruce Thompson and
William Gall, have hereunto set our hands and seals, this Twenty-
eighth day of August, One thousand eight hundred and sixty-
eight.
WILLIAM BRUCE THOMPSON. (L.S.)
WILLIAM GALL.
(L.S.)