IMPROVEMENTS IN SPINNING MACHINERY
Year: 1879

page_text: LETTERS PATENT to Matthew Wright, of Wibsey, in the County of York,
Spinner and Manufacturer, for the Invention of "IMPROVEMENTS IN SPINNING
MACHINERY."
Sealed the 11th November 1879, and dated the 14th May 1879.
PROVISIONAL SPECIFICATION left by the said Matthew Wright at the
Office of the Commissioners of Patents on the 14th May 1879.
MATTHEW WRIGHT, of Wibsey, in the County of York, Spinner and Manu-
facturer. IMPROVEMENTS IN SPINNING MACHINERY."
"
The object of this Invention is to equalize the drag in spinning, and thereby
produce at a much less cost a better spin.
Hitherto the lifting motion has given a varying drag to the yarn at the various
portions of the traverse; in order to equalize this varying drag on the yarn'I place
upon the top of the lifter two bars parallel to each other, between which the
spindle passes; by means of motion obtained from the lifting apparatus I am
enabled to open and close the two bars; on the two bars in centre line of spindles
I place rests slightly raised above the surface of the bars; upon these two rests, one
on each side of the spindle, the washer, of wood or other material, and larger than
hitherto in use, is placed; surrounding the spindle the spool or bobbin upon which
the yarn is to be spun is put upon the spindle and rests upon the washer. When
the frame is set in motion the opening of the two parallel bars gives more drag to
the revolving bobbin, whilst the ordinary lifter is giving less than is required.
When the bars are closed less drag is given to the bobbin, whilst the ordinary
lifter is giving more than is required.
Thus it will be seen that my improvement gives more drag when the ordinary
lifter gives less than is actually required to make a good spin, and my improvement
gives less when the ordinary lifter is giving too much, thus bringing about an
equalization of the drag, which not only produces a more even yarn but with a
large per centage of less ends down, consequently taking less labor.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Matthew Wright in the Great Seal Patent Office on the 13th
November 1879.
MATTHEW WRIGHT, of Wibsey, in the County of York, Spinner and Manu-
facturer. "IMPROVEMENTS IN SPINNING MACHINERY."
The object of this Invention is to equalize the drag of yarn in frames used for
spinning wool, silk, mohair, alpaca, and other similar materials in such a manner
that the yarn is spun on to the bobbins with an equal drag, thereby producing at
a much less cost a better quality of yarn.
Hitherto the lifting motion has given a varying drag to the yarn at the various
portions of the traverse, building the yarn on to the bobbins comparatively tight
in some places and slack in others, in consequence of which when the yarn being
woven the slack portion is liable to slip off the bobbin bodily, and cause damage
to the piece.
In order to equalize this varying drag and build the yarn evenly on to the
bobbins I place upon the top side of the lifter plate two bars parallel to each other,
on the top side of which, centrally with the spindles and at each side of the same, I
place rests slightly raised above the surface of the parallel bars; upon these rests
I place a washer of wood or other hard material, and at each side of this washer
I place another washer made of cloth or other flexible material. The spools or
bobbins upon which the yarn is to be spun are placed upon the spindles and rest
upon the before mentioned washers, and when the frame is set in motion and the
lifter plate and bobbins descending in the traverse, the parallel bars before named
open by means of levers and rods in connection with the lifter apparatus, by which
means more drag is given to the yarn than is obtained simply by the ordinary
lifter when the yarn is being spun near to the top end of the bobbins by virtue of
the parallel bars opening out and the rests travelling from the spindles towards the
circumference of the washers, by which means more power is required to drag the
bobbins, round, consequently the yarn is built tighter on to the bobbins when
the lifter plate begins to ascend, the parallel bars before referred to begin to close
and thus relieve the drag.
Practical spinners will see that my improvement gives more drag to the yarn
when the same is being spun near to the top end of the bobbins, where simply by
the use of the ordinary lifter less drag is given to the yarn, and my improvement
gives less drag to the yarn when spinning near the bottom of the bobbins where
simply by the use of the ordinary lifter more drag is given to the yarn than at the
top, thus bringing about an equalization of the drag, which not only produces more
even and uniform thickness in the yarn but with a large per centage of less ends
down, consequently taking less labour to superintend the frame.
Such being the nature and object of this my Invention, I will now proceed to
describe the same more.in detail by reference to the accompanying Drawings.
Figure 1 represents the front elevation of such portions of a spinning frame as
are required to elucidate my Invention; Figure 2 is a plan of the parallel bars and
rests; Figure 3 is an enlarged detail shewing the washers resting upon the rests;
Figure 4 is a cross section through the parallel bars, shewing them closed when the
lifter plate is at the top of the traverse; Figure 5 is a cross section shewing the
parallel bars open when the lifter plate is at the bottom of the traverse, and the
yarn requiring more drag to build it on to the bobbins with the proper degree of
tightness. Similar letters represent similar parts in all the Figures.
The letter A indicates the framework of the machine; B is the ordinary lifter
to which is attached lever C by means of rod D; the lever C is secured to the
radial rod E, and at the bottom of the rod E is another lever F which is attached
by the rod G to the levers F, secured to the remainder of radial rods E¹ that are on

page_text: one side of the spinning frame. The top end of each radial rod E and E¹ project
at each side of the rod at right angles to the axis of the same, and each of the
projecting pieces H is connected by links J to the parallel bars K, K, on which
are secured the rests M. It will be easily perceived that when the arm N in
lifter motion moves backward and forward in the direction of the double arrow
the radial rods E and E' will oscillate and gradually open out the parallel bars
K, K, when the lifter plate P and bobbins are descending, and thus put more drag
on to the yarn by bringing the rests M towards the outer circumference of the
washers O, as shewn in Figure 5, and when the lifter plate P is rising the lifter
motion will reverse the action of the parallel bars K, K, so that they are gradually
closed, and thus less drag is put on to the yarn at the time when with the use of
ordinary lifter without my improvement more drag is given to the yarn; thus,
by my Invention I bring about an equalization of drag the whole length of the
bobbin. The chain R is secured to coupling S, attached to end of rod G, and passes
over pullies T and T', and at the other end of this chain is attached a weight U
for the purpose of preventing the rods D and G buckling or bending when the
lever N is moving in the direction of the letter W. Upon the top of the lifter
plate I secure a series of narrow thin plates V, V, upon which rest the parallel
bars; by the introduction of these thin plates the friction between the parallel
bars K, K, and the lifter plate P is reduced to a minimum.
What I claim is,-
The arrangement and combination of the various parts of mechanism for the
purpose of equalizing the drag in spinning frames, substantially as herein before
described and illustrated by the accompanying Drawings.
In witness whereof, I, the said Matthew Wright, have hereunto set my hand
and seal, this Eleventh day of November, in the year of our Lord One
thousand eight hundred and seventy nine.
Witness,
EDMONDSON CHARLESWORTH.
MATTHEW WRIGHT. (L.S.)