Improvements in or relating to Apparatus for Spinning and Doubling Cotton and other Fibrous Substances.
Year: 1898

page_text: Date of Application, 12th Aug., 1898
Complete Specification Left, 12th May, 1899-Accepted, 1st July, 1899
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus for Spinning and
Doubling Cotton and other Fibrous Substances.
We, THOMAS ASHWORTH, of Lynwood, Urmston, in the County of Lancaster,
Machinist, and JOSEPH SHAW GAUNT, of Cromford Court, Yarn Merchant, and
GEORGE ANDREW ROBINSON, of 10, St. James' Square, Accountant, both of Man-
chester, in the County of Lancaster, do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to improvements upon the invention for which an applica-
tion for Letters Patent No. 28,162 was filed by us on the 30th day of November
1897, the object of the present invention being to further improve the action of
the drag or friction brake on the spindle.
We employ the same kind of friction brake as described in our previous specifi-
cation consisting of a light frame of wire hanging upon screws or pivots on each
side of the bolster which carries the spindle and provided with a tuft or roli of
cotton or other fibrous substance saturated with oil or other suitable lubricant.
And we also employ a rocking shaft carried by suitable bearings behind the spindles
and near to the fixed rail which carries the bolsters. On this shaft we fix a
series of levers or arms projecting upwards and forwards and carrying a long
bar or rod.
To this long bar or rod behind each spindle is attached one end of a chain which
hangs down in a loop, and its other end is hung on a horizontal arm or projection
forming part of the hanging frame or brake. This chain is preferably made in a
graduated form the links at each end being very light and the central portion
which forms the loop being much heavier.
The weight of this phain always keeps the brake with a certain amount of
pressure or drag" against the spindle and this "drag" is gradually decreased
as the winding takes place at the smaller diameter at or near the spindle and is
gradually increased as the yarn is wound on at or near the full diameter of the cop.
This is effected in the following manner; On the cam-shaft of the machine we
mount a cam provided with a gradual lift and a more or less sudden fall. Against
this cam works a bowl or roller carried by a lever which hangs upon a fulcrum
at the back end, and to the front end of this lever is connected one end of a
chain the other end of which is fixed to a round block or pulley carried by the
rocking shaft before mentioned, and by these means the requisite rocking motion
(vizt.; a gradual rise and a more rapid fall) is given to the arms and the rod
which carry the looped chains, the position of the cam being such that the weight
of the loops of chain decreases as the yarn is wound on the smaller diameter
and increases as it approaches the larger diameter of the cop so as to equalize the
drag" of the yarn on the spindle.
66
Instead of connecting the end of the chain directly to the rocking shaft we prefer
to interpose between the end of the chain and the said shaft a kind of rack made
of wire having several eyes or loops at different heights so that by hooking

page_text: the end of the chain into one or other of these eyes or loops the chain may be
lengthened so as to regulate its weight to the "drag" required.
The "lift" of the chains is always the same but the "fall" thereof may be
regulated as required by means of an adjustable stop which prevents the arms of
the rocking shaft from falling beyond a certain point, and by altering the position
of this stop by hand the "drop" of the bowl on the cam can be diminished to any
required degree.
Improvements in or relating to Apparatus for Spinning and
Doubling Cotton and other Fibrous Substances.
We, THOMAS ASHWORTH, of Lynwood, Urmston, in the County of Lancaster,
Machinist, JOSEPH SHAW GAUNT, of Cromford Court, Yarn Merchant, and
GEORGE ANDREW ROBINSON, of 10, St. James' Square, Accountant, both of Man-
chester, in the said County, 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 improvements upon the invention for which Letters
Patent No. 28,162 were granted to us dated 30th day of November 1897, the object
of the present invention being to further improve the action of the drag or friction
brake upon the spindle.
The manner in which our said invention 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.
On Sheet 1 of the drawings, Fig. 1 is a sectional elevation and Fig. 2 a partial
horizontal section of so much of a spinning or doubling frame as is necessary to
illustrate the application of our invention thereto.
On Sheet 2 of the drawings Fig. 3 is a partial vertical section and Fig. 4 a
partial front elevation of a similar frame illustrating a modification of our inven-
tion; and the remaining figs. on Sheets 1, and 3 are detailed views of detached
portions thereof hereinafter more particularly referred to.
a is a part of the frame of the machine, b the fixed spindle rail and c the
copping rail, d are the spindles.
We employ the same kind of friction brake to act against the spindles as
described in our previous specification above mentioned consisting of a light
frame of wire hanging upon screws or pivots one on each side of the bolster e
which carries the spindle and provided with a tuft or roll of cotton or other
fibrous substance saturated with oil or other suitable lubricant, but instead of
mounting them on two screws one on each side of the bolster as before we bend
in each end of the top part of the wire so as to form pivots which are let into
small holes drilled in opposite sides of the bolster as shown detached at Figs. 3*,
4 and 5 Sheet 3 of the drawings.
We also employ a rocking shaft e* (Figs. 1 and 2 Sheet 1) carried by suitable
bearings behind the spindles and near to the fixed rail b which carries the
bolsters e. On this shaft e* we fix a series of levers or arms f projecting upwards
and forwards and carrying a long har or rod g. To this bar or rod g behind each
spindle d is attached one end of a chain h which hangs down in a loop (see Fig. 1)

page_text: and its other end is hung on a horizontal arm or projection forming part of the
hanging frame or friction brake * above mentioned. This chain h we make in a
graduated form the links at each end being very light and the central portion
which forms the loop being much heavier, as shown at Fig. 1 Sheet 1, but in some
cases we find it preferable to graduate the links of the chain from one end only as
'shown at Fig. 3* (Sheet 3).
The weight of this chain h always keeps the brake with a certain amount
of pressure or "drag" against the spindle d and this "drag" is gradually decreased
as the winding takes place at or near the smaller diameter of the cop, and is
gradually increased as the yarn is wound on at or near the full diameter of the
cop.
This is effected in the following manner: On the cam shaft i of the machine
we mount a cam k (Figs. 1 and 2) provided with a gradual lift and a more or
less sudden fall. Against this cam works a bowl or roller m carried by a lever n
which hangs upon a fulcrum at the back end, and to the front end of this lever n
is connected one end of a chain o the other end of which is fixed to a round block
or pulley p fixed on the rocking shaft ex before mentioned, and by these means
the requisite rocking motion (vizt. a gradual rise and a more rapid fall) is given
to the rod g which carries the looped chains h, the position of the cam k being
such that the weight of the loops of chain h decreases as the yarn is wound on
the smaller diameter and increases as it approaches the larger diameter of the cop
so as to equalize the drag of the yarn on the spindle.
Instead of connecting the end of the chain h directly to the bar or rod gwe
prefer to interpose between the end of the chain and the said bar a kind of rack /*
(Fig. 1 Sheet 1) made of wire having several eyes or loops at different heights,
so that by hooking the end of the chain into one or other of these eyes or
loops the chain may be lengthened so as to increase or regulate its weight to
the drag" required. Sometimes we propose to regulate the "drag" by coiling
one end of the chain round the rod g (as shown at Figs. 1 and 2" Sheet 1)
the rod g being turned by hand so as to take up or let off the chains and held
by a ratchet and pawl g
The lift of the chains h is always the same but the " fall" thereof may be
regulated as required (see Fig. 2 and detached view Fig. 2) by means of an
adjustable stop which prevents the arms of the rocking shaft o from falling
beyond a certain point, and by altering the position of this stop 7 by means of
the hand screw r the "drop" of the bowl me on the cam k can be diminished to
any required degree.
In the modification of our invention shown at Figs. 3 and 4 Sheet 2 we connect
all the chains to a long flat bar g and we connect the latter by a chain s to
a second block or pulley t fixed on the rocking shaft ex, and we connect the block
or pulley by a chain to the regulating stop which is adjusted, as before,
by the hand screw r.
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
claim is:
1. In a spinning or doubling frame the combination with a series of spindles
and light wire brake frames, of a rocking shaft behind such spindles provided with
arms supporting a long bar or rod, weighted by a series of chains (preferably
graduated) connected at one end with such bar or rod, falling into a festoon or
loop, and provided at the other end with means for regulating the length of such
loops, and with means for raising and lowering such levers to take the weight of
such loops off the hanging brake frames, or to put the same on as required.
2. The combination with spindles and loose hanging frame brakes adapted to
make contact therewith, and a lifting rail or rod actuated by a rocking shaft,
of chains connected at one end to the said frame brakes, hanging loose in the

page_text: form of a festoon or loop, and connected at the other to a shaft on which the chains
may be wound or unwound, substantially as and for the purposes hereinbefore
described and illustrated by the drawings annexed.
Dated this 10th day of May 1899.
GEO. DAVIES & SON,
Agents for the Applicants, 4, St. Ann's Square, Manchester.