Improvements in Mules and Twiners for Spinning and Doubling Cotton and other Fibrous Substances.
Year: 1888

page_text: Date of Application, 1st Sept., 1888
Complete Specification Left, 31st May, 1889-Accepted, 6th July, 1889
PROVISIONAL DIMITT
Improvements in Mules and Twiners for Spinning and Doubling
Cotton and other Fibrous Substances.
We RICHARD CURTIS Engineer and JOHN WAIN Foreman both of Phoenix Works
Manchester in the County of Lancaster do hereby declare the nature of this invention
to be as follows:-
رو
"
"
This invention relates first to that part of a mule or twiner known as the "sector
motion," the object of this part of the invention being to enable the "backing-off
cones to be taken out of contact (and thus partly to stop the "backing-off") before
the ordinary sector comes into its position on the "sector-slide to allow the
drawing-in'
gear to draw the carriage in and the winding and copping to
take place.
This we propose to effect by connecting to the ordinary sector an extra or auxiliary
sector which acts on the "backing-off" cones only and this extra sector is set a little
in advance of the ordinary sector which acts on the "drawing-in" gear so that this
auxiliary sector comes into action first and partly stops the "backing-off" just before
the ordinary sector acts upon the "drawing-in gear (instead of the same sector
acting simultaneously upon both motions) whereby we are enabled to "back-off"
quicker with less liability of breaking either the winding chains, clicks, or ratchets,
or the yarn, and we can also make better cops.
22
The second part of our invention relates to that part of the mule or twiner known
as the "backing-off" motion the office of which motion is at the end of every
"stretch" of the spindle carriage to give a certain number of backward turns to the
spindles to unwind or "back-off" the coils which are on the points of the spindles
above the cops, before the carriage commences to run in towards the rollers and
"wind-on" the yarn and the object of this part of our invention is to provide a ready
means of changing the speed of the said "backing-off" motion, according to the
count" of yarn required to be produced.
"
"
According to this part of our invention we mount at the back of the headstock
and between the "rim-shaft" and the " scroll-shaft," an intermediate shaft, and upon
one end of this latter we key a spur pinion which gears into and drives the
backing-off" wheel which revolves loose on the "rim-shaft." At or near the other
end of this intermediate shaft we key a grooved pulley which we drive direct by
means of an endless band from a similar grooved pulley keyed upon the counter shaft
above. The said endless band also passes round a tightening pulley to take up the
"slack," and we can thus at any time after the speed of the backing off motion by
changing the grooved pulley on the intermediate shaft. The same endless band also
drives the friction gear for actuating the scroll shaft.
The third part of our invention relates to that part of a mule or twiner known as
the "cam shaft clutch-box" the object being to simplify the motion and to make it
work more smoothly.
Inside the fixed half of the "clutch-box" we mount a disc which is loose on the
cam-shaft and is provided at one side with two curved inclined planes which project
through two corresponding curved slots made in this half of the clutch hox. The other
side of the disc fits against the inner side of the sliding half of the "clutch-box."
Upon the "balance-lever," we fix a finger or peg which (at the proper time) comes
against the projecting curved inclines above mentioned and forces them inwards, and
the disc to which they are attached is thus caused to push the sliding half of the
"clutch-box" out of gear.
Dated this 31st do of Angust 1888

page_text: "
COMPLETE SPECIFICATION.
Improvements in Mules and Twiners for Spinning and Doubling
Cotton and other Fibrous Substances.
We RICHARD CURTIS Engineer, and JOHN WAIN, Foreman, both of Phoenix
Works Manchester in the County of Lancaster do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention relates first to that part of a mule or twiner known as the " sector
motion the object of this part of our invention being to enable the "backing-off-
cones to be taken out of contact (and thus partly to stop the "backing-off") before
the ordinary
(4 sector comes into its position on the *sector-slide to allow the
drawing in gear to draw the spindle carriage in, and the winding and copping to
take place.
"
"
15
.
The second part of our invention relates to that part of the mule or twiner known
as the "backing-off" motion, the office of which is, at the end of every
" stretch" of
the spindle carriage, to give a certain number of backward turns to the spindles to
unwind or "back off" the coils which are on the points of the spindles above the
cops, before the carriage commences to run in towards the rollers and "wind-on" the
yarn, and the object of this part of our invention is to provide a ready means of
changing the speed of the said "backing-off" motion according to the "count" of
yarn required to he produced.
The third part of our invention relates to that part of the mule or twiner known as
the camshaft clutch-box" the object being to simplify the motion and to make it.
work more smoothly.
The nature of our said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference to
the three sheets of drawings hereunto annexed and the following explanation thereof.
Fig. 1. (Sheet 1.) of the drawings represents in partial sectional elevation so much
of the headstock and spindle carriage of a mule as is necessary to illustrate the first
part of our invention.
On sheet 2 of the drawings Fig. 2 illustrates the second part of our invention, and
is an end view of the headstock and countershaft showing particularly the course of
the endless band in driving the various parts.
Fig. 3 (Sheet 3) of the drawings is a side elevation of so much of the headstock as
is necessary to illustrate the application of the second and third parts of our invention,
and Figs. 4. 5 and 6 on the same sheet are detached views of portions of the latter
drawn to a larger scale.
On Figs. 1. 2 and 3 a is part of the framing of the headstock, b the rim shaft c the
backing off wheel and d the scroll shaft.
"
" h sector
On Fig. 1. e is part of the spindle carriage f the faller shaft, 7 the "sector
slide is the backing-off" rod, and k the "backing-off" lever. The ordinary
sector 9 is connected by the link m and lever n to the "drawing-in" gear in the
ordinary manner.
1:
"
For stopping the "backing-off" we connect to the ordinary sector an extra or
auxiliary sector g* which my means of the link mand lever nx, bowl o and curved
lever p is connected to the backing off rod i and this extra sector g* which acts on the
backing-off cones only has its step set a little in advance of that of the ordinary
sector g which acts on the "drawing-in" gear, so that this auxiliary sector g* comes
into action first and partly stops the "backing off" just before the ordinary sector g
the "drawing-in" gear (instead of the same sector acting simultaneously
acts oth motions as usual) whereby we are enabled to "back off" quicker with
upon
less liability of breaking either the winding chains, clicks, or ratchets or the yarn
itself, and we can also make better cops.
According to the second part of our invention (see Figs. 2 and 3) we mount at the
back of the headstock a and between the rimshaft and the scroll shaft d an

page_text: intermediate shaft and upon one end of this latter we key a spur pinion g which
gears into and drives the "backing-off" wheel c which revolves loose upon the rim-
shaft b.
At or near the other end of this intermediate shaft we fix a grooved pulley 7*
which we drive direct by means of an endless band r from a three grooved pulley s
keyed upon the countershaft t above. The said endless band 7 also passes round an
adjustable tightening pulley u to take up the slack, and we can thus at any time alter
the speed of the "backing off" motion by changing the grooved pulley 9* on the
intermediate shaft.
The same endless band also drives the cam shaft and the friction gear for actuating
the "scroll-shaft" d, and the speed of either of these motions can also be varied by
changing their respective grooved pulleys in a similar manner.
The course taken by the endless band in driving these several motions may be
easily followed on Fig. 2 by means of the progressive figures 1 to 10 in the direction
of the arrow.
According to the third part of our invention we mount (inside the fixed half v
of the "clutch box") a disc w three views of which are shewn drawn to an enlarged
scale at Fig. 5.
This disc w is loose on the cam-shaft and is provided at one side with two
curved inclined planes wx which project. through two corresponding curved slots made
in this half of the "clutch box" (see Figs. 4 and 6).
The other side of the disc to fits against the inner side of the sliding half * of
the clutch box."
4
Upon the balance lever y (Fig. 3) we fix a finger or peg z, which (at the proper
time) comes against the projecting curved inclined planes wx and forces them
inwards, and the disc w to which they are attached is thus caused to push the sliding
half of the "clutch-box" out of gear.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
olaim is :-
First. The combination with the ordinary sector-motion of an auxiliary sector so
arranged as to take the " backing-off" cones out of contact just before the
drawing-in" gear comes into operation.
"
Secondly. The apparatus substantially as shown on the drawings and herein before
described whereby we are enabled to drive the "backing off" wheel, the camshaft and
the taking in motion from the countershaft by one and the same endless band, for
facilitating the alteration of the speed of any of such motions without affecting the
others, and
Thirdly. The combination with the "cam-shaft clutch-box" of a sliding disc having
curved inclined planes projecting through curved slots in the fixed half of the clutch
box, and acted upon by a pin or projection from the balance lever substantially as
described and illustrated by the drawings.
GEORGE DAVIES,
4, St. Ann's Square, Manchester, Agent for the Applicants.