NEW OR IMPROVED APPARATUS FOR PRODUCING DOUBLE CROSSING MOTION FOR SELF-ACTING MULES FOR SPINNING AND DOUBLING
Year: 1881

page_text: LETTERS PATENT to Aaron Metcalf, of Preston, in the County of Lancaster,
Machinist, for an Invention of "NEW OR IMPROVED APPARATUS FOR
PRODUCING DOUBLE CROSSING MOTION FOR SELF-ACTING MULES FOR
SPINNING AND DOUBLING."
PROVISIONAL SPECIFICATION left by the said Aaron Metcalf at the Office
of the Commissioners of Patents on the 12th November 1881.
AARON METCALF, of Preston, in the County of Lancaster, Machinist. "NEW
OR IMPROVED APPARATUS FOR PRODUCING DOUBLE CROSSING MOTION FOR
SELF-ACTING MULES FOR SPINNING AND DOUBLING,"
"
This Invention relates to the forming of the cops on the "self-acting mules'
by a double action of the faller, a corresponding double action of the winding of
the yarn on the spindle, whereby the yarn is crossed twice during each stretch of
the mule instead of once, as hithertofore.
In place of the ordinary copping rail I substitute a double shouldered rail, which
I fix along with what is generaly known as Parr's short copping notion; and in
some cases I can instead apply a complete double copping rail and motion. I also
substitute in place of the ordinary quadrant a plate or disc with two screws so
set as to meet at or near the centre of said disc and the other ends to set near the
outside opposite or nearly opposite. The hub or neck in which the screws work will
be made adjustable to suit the winding.
I can also effect the same by one right and left hand thread screw with two stud
nuts starting from or near the centre, and as the copp builds they work outward.
I attach winding chain or band to one stud nut; as the carriage moves out the said
chain or band passes over the other stud nut; and as the carriage moves back the
chain or band unfolds from the one nut, but remains attached to or near the other
stud nut. I also place a pulley near foot of head stock, under which the chain or
band works. The periphery of the plate or disc I groove so that two bands will
[Price 6d.]

page_text: work, whereby in conjunction with the carriage of mule the said plate or disc is
made to perform about a revolution each way of the stretch of the carriage. The
motion of plate or disc may be obtained by any well known plan, not necessary
here to describe. I vary the shape of periphery of plate or disc in the groove, or
substitute or add tooth wheel to give a variable speed to disc or plate when
required.
Another mode of applying my Invention is by placing a double shouldered rail
longitudinally with the frame of the headstock, and a screw set in the carriage
square and connected with a rising and falling lever or bar, such lever or bar to
have one end sliding on the double shouldered rail, the other end working on a
stud. On the said bar I attach a sliding swivel with a rack suspended and geared
with a wheel on a square or grooved shaft, and upon such shaft I have a sun and
planet motion in connection with the tin roller and winding drum; such winding
drum is revolved always at the same rate of speed, and the variations is given to
the spindle by means of the double shouldered rail, and the screw and bar, and
sun and planet motion above described. I can also, instead of rack and wheel,
suspend a chain or band from bar, and connect the other end with a wide grooved
pulley on grooved shaft and effect the same object.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Aaron Metcalf in the Great Seal Patent Office on the 12th May
1882.
"NEW
AARON METCALF, of Preston, in the County of Lancaster, Machinist.
OR IMPROVED APPARATUS FOR PRODUCING DOUBLE CROSSING MOTION FOR
SELF-ACTING MULES FOR SPINNING AND DOUBLING."
This Invention relates to the forming of the cops on the "self acting mule" by
a double action of the faller, a corresponding double action of the winding of the
yarn on the spindle, whereby the yarn is crossed twice during the stretch of the
mule instead of once, as hithertofore.
Herewith are two Drawings. In the several Figures are letters of reference,
such letters on each Figure have no reference to any other Figure, as nearly each
Figure shows a different method of applying the same principle.
Figure 1 shows a mule headstock with my No. 1, A, A, copping rail; D, D, are
shaper plates, at present in use, which I work in conjunction with my rail A by
bracket C; chace plates B, B, B; C is a slotted bracket attached to the present
copping motion.
Fig. 2 is my copping rail No. 2, which I use as occasion may require or the
make of the mule may demand; D, D, are the chace plates.
Fig. 3 is my copping rail No. 3, which is suitable for a mule having what is
called Parr's short copping motion; it is likewise suitable for others.
Fig. is my copping rail No. 4, which may likewise be used in place of the
before named No. 2 rail.
Fig. 5 is an outline showing the off side of a mule headstock from Fig. 1;
A, A, are the winding plate or plates; B, B, screws; C, C, are nut studs which
work from about the centre of plates A, A, outwards as the cop builds; D is the
winding chain; E, a swing bracket; F, a pulley under which the winding chain D
works; such, winding chain is attached to one nut C and is passed over another
nut C, from which it unfolds as the carriage of mule runs in.
The swing
bracket E is adjustable. The winding chain D works round the winding
drum G.
Fig. G is another plan of winding plate which I use sometimes in place of Fig. 5.
A is a pinion on the end of the scroll shaft now in use; B, a toothed wheel geared
into pinion A; C, C, are winding plates; D, D, are screws, and are used similarly
to the winding plates in Fig. 5. The plates are adjustable, and connected to tooth
wheel B. A grooved pulley may be substituted in place of the tooth wheel B, with
variable shape if required; or a longitudinal shaft with a worm groove, and con-
nected to the winding, plates in such worm groove, works a stud which I fix to or
about the square of the carriage.
Fig. 7 is another plan of winding plate or plates. A is a pinion on scroll shaft ;
B is about half a tooth wheel; C is a plate; D, a screw; E, a nut which traverses
along the screw D as the cop builds. I attach the winding chain to the nut, and
pass it over a pulley at the top of plate D, and under a stud in nut E, and from
thence to the winding drum F. I excentric the right hand side of the winding
drum F.
Fig. 8 is another plan of winding. A is a shouldered rail fit longitudinally with
frame of headstock; B, B, is a frame fixed on square of the carriage; C is a screw
working in frame B; D is a nut working on the screw C; E is a rising and falling
bar, one end of which is placed on the shouldered rail A, which causes it to rise
and fall as the carriage moves; F is a square shaft; G is a rack with a swivel at
the top; H is a pinion geared into rack G, and sliding on the square shaft F by

page_text: the action of screw C; I is a sun and planet motion; L is a spur wheel attached
to one side, and J is a winding drum on the other side, which receives motion by
having two bands stretched and attached to it, and the back and front anywhere
convenient to the headstock. Motion is by this means conveyed to the sun and
planet motion I, and through spur wheel L to tin roller and spindles of the mule.
I may instead of drum J use a fixed rack and a pinion. The variations to the
spindles are given by the rising and falling bar E working on the shouldered rail A
in conjunction with the rack G and pinion H, and square shaft F, and sun and
planet motion I.
Having described the various parts of my Invention, the shapes and several
mechanical methods of applying it for, I may say, every kind of mule now made
or in use, I will now proceed to describe its action and the combination of the
several parts.
It is well understood that the usual mode of copping is by about one and a half
traverse of the copping faller each stretch inwards of the mule, thereby the yarn is
crossed once during each stretch, whereas by my Invention herein it is crossed
twice, thereby securing a firmer built cop with greater certainty, as the nose of the
cop is formed before the carriage has run too far inwards.
The traverse of the copping faller is given by the connection of it with the
copping rail, and it must be observed that while the ordinary plan is to have only
two inclines my plan is to have three and sometimes four. Likewise, while the
ordinary plan of winding is only adapted to about one traverse and a half of
the faller, my plans are adapted to form two and a half to three and a half or
more.
The connection generally termed a faller lock, with a bowl attached, runs-on-the
copping rail during the traverse of the carriage inwards, and by so doing gives
action to the copping faller, guiding the yarn alternately from one end of the cop
chace to the other. It must also be observed that when the faller is guiding the
yarn on what is termed the cop nose, the spindles are required to revolve at a
greater speed; this result is obtained by the position of the winding plates, from
which the winding chain is stretched to the winding drum about the apex of its
axis.
F
When the faller is guiding the yarn on the shoulder, the position of such plate is
about a right angle, thus giving off the greatest amount of chain, and by that
means retarding the speed of the spindles.
This various and suitable action of the spindles is obtained by the different
devices shown herein, and illustrated by my Drawings.
I wish it to be understood that I do not confine myself to the precise details
I have had occasion to describe and refer to, as many variations may be made in
detail without deviating from the principle; but what I claim as secured to me
herein is, the combination of the several parts thereof, or any part thereof of such
combination, as and for the purposes hereinbefore set forth.
In witness whereof, I, the said Aaron Metcalf, have hereunto set my hand
and seal, this Tenth day of May, in the year of our Lord One thousand
eight hundred and eighty two.
AARON (L.S.) METCALF.