IMPROVEMENTS IN THE CONSTRUCTION OF SELF-ACTING MULES EMPLOYED FOR SPINNING COTTON AND OTHER FIBROUS SUBSTANCES,
Year: 1877

page_text: LETTERS PATENT to William Kirkwood Morrison, of Dukinfield, in the County
of Chester, Spinning Master to Messieurs John Chadwick and Company, for the
Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF SELF-ACTING MULES
EMPLOYED FOR SPINNING COTTON AND OTHER FIBROUS SUBSTANCES,"
PROVISIONAL SPECIFICATION left by the said William Kirkwood Morrison
at the Office of the Commissioners of Patents on the 16th June 1877.
WILLIAM KIRKWOOD MORRISON, of Dukinfield, in the County of Chester, Spinning
Master to Messieurs John Chadwick and Company. "IMPROVEMENTS IN THE CON-
STRUCTION OF SELF-ACTING MULES EMPLOYED FOR SPINNING COTTON AND OTHER
FIBROUS SUBSTANCES.”
.
The first part of my Invention relates to the winding motion, and is constructed
as follows:-I dispense with the ordinary quadrant, quadrant arm, and screw,
winding band and chain and pulley, side shaft and quadrant shaft, and with the
nosing and strapping motion.
In place of the winding pulley I put a spur pinion, gearing with a curved rack
or quadrant, oscillating on a fixed stud bolted on to the square. At the lower end
of this curved rack or quadrant is a pulley or bowl running on an inclined rail
supported upon studs resting on movable plates at each end. These movable plates
are connected to a screw, worked by the "going out" of the carriage in the same
manner as that which works the "copping plates," and have a corresponding motion,
so as to give the necessary tension at all times to the yarn as the winding proceeds
from the commencement to the finish of the cop.
"
The second part of my Invention relates to the arrangement for "drawing up"
the carriage to the rollers, and is constructed as follows:-I dispense with the
ordinary" drawing-up scrolls," scroll band and scroll shaft, and on the back of the
ordinary" taking in" bevil wheel I cast or fix an elliptical or excentric spur wheel
driving a similar wheel mounted upon a stud. On the back of the second elliptical
or excentric wheel is an ordinary spur wheel gearing with a spur pinion keyed upon
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page_text: the back shaft of the headstock. By those means I employ the ordinary "drawing
out" scrolls and bands at the outer end of the said shaft to effect the "drawing up
of the carriage also. The elliptical or excentric wheels are so arranged that the
drawing up" of the carriage commences at a slow speed, then gradually increases
in speed to about the centre of its traverse, and then decreases again as the
carriage runs up to the rollers.
ST
The third part of my Invention relates to a continuous "yarn delivery" motion.
The object of this motion is to deliver the yarn continuously at a slow speed during
the whole of the time that the "roller catch-box "is out of gear. This I effect as
follows: On the head of the side shaft of the headstock (in the form of mule
known as "Parr's " mule) I key a bevil pinion driving a similar wheel keyed on to
the front roller spindle, and having at the back an internal ratchet wheel with a
click and spring. When the "roller catch-box" is out of gear this arrangement
keeps the rollers continually revolving at a slow speed and giving out the yarn
slowly, but as soon as the catch-box is thrown into gear the roller shaft commences
to revolve rapidly, and the click then overruns the teeth of the ratchet wheel as
long as the carriage is going out, and the rollers deliver the yarn at a quicker speed
as usual.
When the carriage has arrived at the end of its "stretel the roller
catch-box is thrown out of gear again, and the rollers again deliver the yarn slowly
as before.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Kirkwood Morrison in the Great Seal Patent Office on the
15th December 1877.
WILLIAM KIRKWOOD MORRISON, of Dukinfield, in the County of Chester, Spinning
Master to Messieurs John Chadwick and Company. "IMPROVEMENTS IN THE CON-
STRUCTION OF SELE-ACTING MULES EMPLOYED FOR SPINNING COTTON AND OTHER
FIBROUS SUBSTANCES,"
· The first part of my Invention relates to the winding motion." The construction
of this part of my Invention is illustrated at Fig. 1 in the annexed Drawing, in
which a, a, is part of the framing of the headstock of a self-acting mule, and b, b,
the "square" or carriage, shown in section. I dispense with the ordinary quadrant,
quadrant arm, and screw, winding band and chain pulley, side shaft and quadrant
shaft, and with the nosing and strapping motion.
In place of the ordinary winding pulley I put a spur pinion c, c, gearing with a
curved rack or quadrant d, d, oscillating on a fixed stud e bolted on to the
square b, b. At the lower end of this curved rack or quadrant d, d, is a pulley:
or bowl running on an inclined rail g, g, supported upon studs h, h, resting on.
movable plates i, i, at each end. These movable plates are attached to each other
by a rod or bar k, k, so that they move together; and one of them is connected to.
a screw I, l, worked by a ratchet and wheel m, m, actuated by the "going out" of
the carriage in the same manner as that which works the "copping plates." The
movable plates i, i, have thus imparted to them a variable motion, corresponding
with that of the "copping plates," so as to give the necessary tension to the yarn.
as the winding proceeds from the commencement to the finish of the cop.
'

page_text: "
The second part of my Invention relates to the arrangement for "drawing up
the carriage to the rollers, and its construction is illustrated in side elevation at
Fig. 2 and in transverse section at Fig. 3. I dispense with the ordinary "drawing-
up scrolls," scroll band, and scroll shaft; and on the back of the ordinary "taking-
in" bevil wheel n, n, I cast or fix an elliptical or eccentric spur wheel o, o, driving
a similar wheel 2, p, mounted upon a stud. I may here remark that the form of
these elliptical or eccentric spur wheels may be varied more or less; but the form
which I have found in practice to be most suitable to give the variable motion
required is that shown on the annexed Drawing, the first wheel o, o, being somewhat
heart-shaped, and the second wheel p, p, of a pear-shaped form. On the back of
the second wheel p, p, is an ordinary spur wheel q, q, gearing with a spur pinion r, r,
keyed upon the back shaft 8, 8, of the headstock a, . By these means I employ
the ordinary "drawing-out" scrolls and bands at the outer ends of the said shaft to
effect the "drawing-up" of the carriage also. The relative forms of the excentric
spur wheels o and are so arranged that the "drawing-up" of the carriage
cominences at a slow speed, then gradually increases in speed to about the centre of
its traverse, and then decreases again as the carriage runs up to the rollers.
A modification of this part of iny Invention is illustrated in end view at Fig. 4,
and in section at Fig. 5, and may be adapted to that class of self-acting mules
wherein the "taking-in" bevil wheel n, n, is fixed on the scroll shaft t, t, (which in
this case is not dispensed with). A spur pinion u, u, is also keyed upon the "scroll
shaft" driving a spur wheel v, v, to the back of which is attached or cast the first
eccentric spur wheel o, o, and to the back of the second eccentric spur wheel p, p,
is cast or otherwise attached a spur wheel a, a, driving a spur pinion y, y, keyed
upon the back shaft 8, 8.
With regard to the third part of my said Invention, as described in the
Provisional Specification as the "continous yarn delivery motion," I am informed
and believe that this part of my said Invention is not new, and I therefore wish it
to be understood that I lay no claim to such part of my said Invention.
Having now described the nature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into
practical effect, I wish it to be understood that I claim as my Invention,―
First. The novel arrangement of mechanism for effecting the winding motion,
substantially as herein-before described with reference to Fig. 1 of the Drawings
hereto annexed, whereby I am enabled to dispense with the ordinary quadrant,
quadrant arm and screw, winding band and chain pulley, side shaft and quadrant
shaft, and with the nosing and strapping motion.
Secondly. The novel arrangement of mechanism for effecting the drawing up of
the carriage to the rollers, substantially as herein-before described with reference to
Figs. 2 and 3 of the annexed Drawings, whereby I am enabled to dispense with
the "drawing up" scrolls, scroll band, and scroll shaft; and more especially I claim
the use of elliptical or eccentric spur wheels for this purpose.
And, Thirdly. I claim the modification of this "drawing-up" arrangement,
substantially as herein-before described with reference to Figs. 4 and 5 in the
Drawings hereto annexed.
In witness whereof, I, the said William Kirkwood Morrison, have hereunto set
my hand and seal this Thirteenth day of December in the veer of our