other Fibrous Materials, Commonly known as Mules.
Year: 1887

page_text: Date of Application, 23rd Mar., 1887
Complete Left, 21st Dec., 1887
Complete Accepted, 3rd Feb., 1888
other Fibrous Materials, Commonly known as Mules.
I WILLIAM NUTTALL of Lower Healey, in the Borough of Rochdale, and County
of Lancaster, Mule Overlooker, do hereby declare the nature of this invention to be
as follows:
This Invention consists of a Metal Boss, keyed on or fixed to the faller Shaft of the
5 Mule, with a projecting arm at right angles thereto and provided with a Slot, in which
is fitted a metal stud, square at one end to fit into the Slot, with a thread at end of
same and screw to make it fast to said Arm, and the opposite end is round with a shoulder
thereon, on which round end or part hangs a lever, fitted at the other and lower end,
with a loose grooved pulley, held in its place by a pin, and underneath said Lever, or
in near proximity thereto, I fix to the Monkey tail in the square of the Mule-carriage,
a bracket on which a loose grooved pulley is placed, and on the face plate at present
in use for the backing off motion of the Mule I affix a scroll or backing off Snail, by a
Casting or otherwise and made fast thereto and at the narrowest or smaller end of the
said scroll or backing off Snail, I affix a screw with a head and to which said Screw I
attach or secure the backing off chain which goes thence under the loose grooved
pulley fixed to the Monkey tail in the square of the Mule-carriage, then over the other
grooved loose pulley, at the bottom end of the Lever, then the remainder of the
Chain is taken and made fast to the under part of the Mule carriage by two or more
screws as may be required.
My Invention being thus fixed and ready for Working is put into operation
immediately the backing off Motion of the Mule is applied by at once causing the
backing off chain to wind itself on the scroll or backing off Snail from the smaller to
the thicker end of same next to the face plate, which is placed on the tin roller shaft,
and the gradually increasing thickness or increasing diameter of the scroll or backing
off snail, causes the backing off chain to keep tight and at its full Tension, and thus
causing the Lever to act and gradually pull down the faller bar which causes the faller
wire to gradually press on the threads of Weft or Twist as may be being delivered
onto the Spindles, and thus causes the Cops to be symmetrically and evenly built up
and free from snarls and at a great saving of time, trouble and cost.
Dated this 22nd day of March 1887
HENRY DEAN BUTTERWORTH,
Agent to the said Inventor.

page_text: Improvements in Machinery for Spinning Cotton, Wool, Silk, or
other Fibrous Materials, Commonly known as Mules.
I WILLIAM NUTTALL of Lower Healey in the Borough of Rochdale and County of
Lancaster, Mule Overlooker 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 to Spinning Mules and has for its object to dispense with the
tightening mechanism now used in connection with the Backing off Chain of such
machines and to build a firm and even cop.
The accompanying drawings illustrate my invention. Fig. 1 is a side view.
Fig. 2 is a front view.
This invention consists of a slotted lever A suitably fixed or keyed on to the faller
shaft B, in the slot of the said lever is provided a suitable stud which has a squaro
part fitting into the slot of the lever, in which slot the stud C may be slid in any
convenient position, on the stud is hung a lever D, which lever is provided with a
small pulley E free to turn about its axis on the stud F, and in any convenient position
below the lever A or in proximity to the lever D preferably affixed to the "monkey
tail" (which is well understood) I employ a grooved pulley G which is free to turn
about its axis on the stud H, and on the tin roller shaft I, which is well known, I
provide a scroll metal piece J, which may if desired be attached to the face plate J'on
the tin roller shaft, but in the drawings herewith the scroll and the face plate J₁ are
shewn as being in one piece, and at the smallest diameter J2 of the said scroll I attach
one extremity of the Backing-off chain K by means of a screw threaded stud L or by
other convenient means, the chain is then caused to pass in direction from the scroll J,
passing under the pulley G supported by a suitable bracket and from thence passes
over the small pulley E at the lower end of the lever D to, (and terminating with a
screw threaded extremity K') a bracket. M situated at any convenient part of the
framing of the machine, the scrow threaded extremity K' is secured to the bracket by
means of screw threaded nuts K and K³, by which means the chain K, may be
shortened or lengthened as may be desired and as the case may be.
The operation of my Invention is as follows.
Immediately the backing-off motion of the mule is commenced, the backing off
chain is caused to be wound upon the surface of the scroll J, winding first on the
smaller diameter J2 then gradually on the larger diameter, which winding is effected
by the action of the tin roller shaft I, thus the chain being wound on the scroll
commencing with the smaller diameter and finishing on the larger diameter, allows
the slack portion of the chain to be taken up by the scroll and an even tension is
maintained, without the aid of any extraneous tightening apparatus as is now used for
maintaining such tension, and thus the faller shaft B is under the influence and
effective control of the backing off mechanism.

page_text: Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is.
1. In mule spinning machines a scroll piece having a small diameter at one
extremity and an increased or larger diameter at its other extremity, and one extremity
of the backing off chain attached to the smaller diameter and its other extremity
being fixed or stationary, substantially as and for the purposes herein fully set forth
and described in the drawings hereunto annexed.
2. The scroll J which may be in one piece with the face plate, or may be
attached thereto substantially as and for the purposes herein fully set forth.
3. The backing off chain K, and screw threaded nuts K K applied in the manner
substantially as and for the purposes herein fully set forth and described in the
annexed drawings.
4. The grooved pulley G and stud H with a suitable bracket substantially as
and for &c. &c.
5. The lever D in combination with the lever A substantially as and for the
purposes herein fully set forth and described in the drawings hereunto annexed.
6. The bracket M. substantially as and for the purposes herein fully set forth and
described in the drawings hereunto annexed.
Dated this 20th day of December 1887.
JOHN H. BUTTERWORTH,
Agent to the Applicant.