IMPROVEMENTS IN THE MACHINES FOR DOUBLING KNOWN AS " TWINERS.
Year: 1873

page_text: LETTERS PATENT to John Chisholm, Manager of Asa Lees & Co.
Limited, of Oldham, in the County of Lancaster, for the Inven-
tion of "IMPROVEMENTS IN THE MACHINES FOR DOUBLING KNOWN
AS
"
TWINERS.'
" "
Scaled the 30th May 1873, and dated the 9th April 1873.
$
PROVISIONAL SPECIFICATION left by the said John Chisholm at tho
Office of the Commissioners of Patents, with his Petition, on the
9th April 1873.
.
I, JOHN CHISHOLM, Manager of Asa Lees & Co., Limited, of Oldham,
in the County of Lancaster, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE MACHINES FOR DOUBLING KNOWN AS
TWINERS,'" to be as follows:-
My Invention is applicable to those twiners in which the spindles
revolve in fixed bearings, and the cops are mounted on the carriage
which moves to and fro, the various motions being effected by a long
lever instead of a cam shaft, which shaft in my improved twiner is
dispensed with.
The main feature of my Invention is the improved arrangement of
mechanism for actuating the friction box for effecting the backing off,

page_text: and the friction or catch box for drawing in the carriage, whereby the
friction or catch box for drawing in the carriage cannot act until the
friction box for backing off is thrown out of gear, and after the carriage
has completed its run in. The long lever is then depressed near the
spindles, and the other end is raised and lifts a lever which acts upon
the taking-in lever, and thus draws the taking-in friction or catch box
out of gear, and latches the taking-in lever by the backing-off lever.
The carriage is then drawn out as usual, and when out it liberates the
end of the long lever which drops, thus moving the driving strap on to
the loose pulley, and putting the backing-off friction box into gear. The
strap lever is connected to an elbow lever, by which the backing-off
lever is held out of gear until the strap is completely on the loose
pulley.
When the backing off is completed the levers commonly called the
"boot leg" and "monkey tail," which latter is connected by a rod to
the backing-off lever, releases the backing-off friction catch and again
allows the taking-in lever to be drawn in gear by a spring, thereby
putting the parts in the proper positions for taking the carriage in.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Chisholm in the Great Seal Patent Office
on the 1st October 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
CHISHOLM, Manager of Asa Lees and Company, Limited, of Oldham,
in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Ninth day of April, in the year
of our Lord One thousand eight hundred and seventy-three, in the
thirty-sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Chisholm, Her special licence
that I, the said John Chisholm, my executors, administrators, and
assigns, or such others as I, the said John Chisholm, my 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

page_text: "
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE
MACHINES FOR DOUBLING KNOWN AS 'TWINERS,' upon the condition (amongst
others) that I, the said John Chisholm, my executors or administrators,
by an instrument in writing under my, 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 I, the said John Chisholm, do hereby declare
the nature of my 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) :-
My Invention is applicable to those twiners in which the spindles
revolve in fixed bearings, and the cops are mounted on the carriage
which moves to and fro, the various motions being effected by a long
lever instead of a cam shaft, which shaft in my improved twiner is
dispensed with.
The main feature of my Invention is the improved arrangement of
mechanism for actuating the friction box for effecting the backing off,
and the friction or catch box for drawing in the carriage, whereby the
friction or catch box for drawing in the carriage cannot act until tho
friction box for backing off is thrown out of gear.
And in order that my Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying
Sheet of Drawings, reference being had to the figures and letters marked
thereon :-
Fig. 1 is a side elevation of a twiner to which my improvements are
applied; Fig. 2 is an end view, and Fig. 3 a plan of the same.
a, a, are the frames of the head stocks; b, the rim band pulley shaft
on which are the usual loose and driving pulleys 6¹ and 6³, the backing-
off wheel 68, and backing-off cone 6'; c is the side shaft which is driven
as usual from the rim band pulley shaft, and on which is the drawing or
taking-in friction or catch box c¹; d, d¹, are the copping faller and
counterfaller shafts, and e the spindles which revolve in stationary
bearings; fis the lever which is commonly called the "boot leg" hinged
to the trail lever, forming part of the copping motion; and 9 is the lever
g

page_text: and
known as the "monkey tail;" the levers fƒ and g are connected by the
link f¹; his the carriage supporting the creel of cops; and i is the
long lever, the ends of which are held up alternately by the catches i
and i³. All the parts above enumerated are made in the usual manner.
My improved system of levers, catches, rods, and springs for actuating
the backing-off friction box b³ and the drawing-in friction or catch box c¹
consists of the following parts: -To the ordinary cross shaft j is fixed
the backing-off lever, in the upper arms of which are the curved keys
for actuating the backing-off catch box 6' and the studs for the bowl
and the catch. The lower arm of the backing-off lever j¹ is provided
with a curved incline and catch acting on the adjustable inclined latch k¹
at the end of the taking-in lever k, in which is the curved key for
actuating the drawing-in friction or catch box c¹. The levers and k
are drawn towards each other by the springs ³, shewn in Fig. 1,
the spring k² being connected to the cross stay of the framing, and the
spring to the bracket 1 fixed to the rod 1, one end of which is con-
nected by the link to the monkey tail lever g. The bracket ¹ is
prolonged upwards to carry the bowl for lifting the holding-out catch k³.
To the rod is also fixed the bracket for unlatching the end of the
backing-off lever ¹. The long lever i is provided with two slots, through
one of which passes the end of the ordinary drawing-out lever as usual,
and through the other the end of the lever m passes, which lever is
provided with a regulating set screw acting on the lever k, by which the
taking-in friction or catch box c¹is thrown in or out of gear. The
bowl at the end of the lever j¹ acts on a segment at the end of the
horizontal arm of the elbow lever n, see Fig. 1, the pendant arm of
which is connected by the link n' to the strap lever n². The object of
these parts is to hold the backing-off lever out of gear until the driving
strap is completely on the loose pulley b¹.
The mode of operation is as follows, and the parts are shewn in the
positions they occupy when the carriage is running in, as shewn by the
arrow; the taking-in friction or catch box c¹ is now in gear, and the
backing-off friction box b³ is out of gear; the driving strap is on the
loose pulley, and the side shaft c is being driven as usual by the pinion
on the boss of the loose pulley. After the carriage has completed its
run in the bowl ¹ connected to the carriage comes against the
regulating set screw in the catch 2, thereby releasing the end of the
long lever near the spindles. The long lever is then depressed by the
weighted rod connected to the carriage. The other end of the long

page_text: lever is thus raised and puts the driving strap on to the driving
pulley 63 and the ordinary drawing-out catch box into gear, and at the
same time it lifts the end of the lever in, which depresses the taking-
in lever k and thus draws the taking-in friction or catch box o³ out of
gear, and at the same time the inclined latch ¹ is brought under the
catch at the bottom of the backing-off lever j³, thereby latching the
taking-in lever k by the backing-off lever k¹.
By this improved combination of parts the friction or catch box for
drawing in the carriage cannot act until the drawing-out catch box and
the backing-off friction box are out of gear, thereby preventing the
injury which sometimes occurs in ordinary twiners by the taking-in
friction or catch box being put into gear before the drawing-out catch
box and backing-off friction box are thrown out of gear. When the
carriage is in the unlocking finger ³ releases the faller as usual and
draws the link and rod in the direction of the dotted arrow, thereby
moving the bracket out of contact with the backing-off lever j¹ and
causing the bowl at the upper end of the bracket to lower the holding-
out catch. The carriage is then drawn out as usual, and when out it
releases the safety catch; the carriage is then held as usual by the
holding-out catch . The bowl h¹ in the carriage acting on the set screw
in the catch, then liberates the end of the long lever i, which is
depressed by the weighted rod h³, thereby throwing the drawing-out
catch box out of gear and moving the driving strap on to the loose
pulley 6. As the strap lever n³ is moved it raises the segment of the
elbow lever n, and when the segment is up it allows the backing-off
friction box to go into gear. During the backing off the backing-off
chain is tightened, as usual, thereby locking the boot leg lever ƒ and
moving the rod / back to its original position, at the same time the
bracket acting on the backing-off lever j releases the taking-in lever k
and hooks the safety catch. The bowl on the bracket has then lifted
the catch and the carriage is then at liberty to run in, thereby
completing the whole operation.
In Fig. 4 I have shewn an improved arrangement of parts for
connecting the holding-out latch with the taking-in lever k. In
this arrangement the latch is connected to the lever k by means of
the link ; the upper end of the link has a slot fitting on a stud fixed
in a slot in the latch, and the position of this stud can be regulated by

page_text: a set screw. By this means the latch is lifted before the drawing-in
friction or catch box c¹ can be thrown into contact for pulling up the
carriage.
Having thus stated the nature of my Invention, and described the
manner of performing the same, I wish to observe that I do not intend t
to limit myself to the details given, but what I claim is,-
First. The arrangement of levers, catches, rods, and springs for
actuating the backing-off friction box and the drawing-in friction or
catch box in such wise that the latter cannot act until the former is
thrown out of gear.
Secondly. Effecting the opening of the taking-in friction or catch box
by the long lever.
Thirdly. The combination of the elbow lever n with the strap fork
lever for the purpose described.
Fourthly. The improved mode of connecting the "boot leg" lever,
the "monkey tail" lever, and the backing-off lever, as shewn and
described.
And lastly. Connecting the holding-out latch with the taking-in lever,
as shewn and described in reference to Fig. 4.
In witness whereof, I, the said John Chisholm, have hereto set my s
hand and seal, this Thirtieth day of September One thousand
eight hundred and seventy-three.
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