Improvements in Spinning, Twisting, and Doubling Frames.
Year: 1899

page_text: Date of Application, 29th May, 1899
Complete Specification Left, 28th Mar., 1900-Accepted, 29th May, 1900
PROVISIONAL SPECIFICATION.
Improvements in Spinning, Twisting, and Doubling Frames.
We, PHINEAS PEARSON CRAVEN, of 16, Devonshire Street, Ardwick, Man-
chester, Gentleman, and FREDERICK RIPLEY, of Acacia, Apperley Bridge, Leeds,
Baronet, do hereby declare the nature of this invention to be as follows:-
These improvements apply more particularly to the class of machines, ordinarily
known as ring spinning frames, but may be applied to machines of other con-
struction.
Our improvement refers to means for forming the cop-bottom.
In order to fully utilize the assistance, given by the disc on the spindle to
the yarn to carry the traveller, it is desirable, when starting a new set of cops,
to have the chase, or traverse of the copping rail, abnormally short, relative to
the normal length of the chase, because in that case, the traveller or yarn guide,
does not fall so far below the disc, as it would if the chase were longer.
This shortness of chase, causes the disc to give more assistance to the yarn,
to carry the traveller on account of the more acute angle formed by the yarn,
round the edge of the disc, on its way to the spindle or cop.
This shortness of chase may be obtained, by using a bottoming-peg, similar
to what is used on the ordinary ring frame, but of larger size, but if this, and
nothing more was used, the cop would thicken too rapidly, and the yarn would
web, or fall over, and cause considerable waste, when the yarn was being used,
either for winding or weaving.
Further, if a cop was built by this means, when finished, it would be too
thick towards the bottom.
This may be obviated in several ways:-
A. By having a projection on the bowl of the building motion lever.
B. By a lever, pressing on the building motion chain.
C. By a differential winding up motion.
All these movements have one object, namely, to wind up the copping rail,
more rapidly, when near the bottom of the cop.
They may be arranged in such relative positions to the bottoming-peg, that
they cease to operate when required.
L
0711
dose of 1800
Improvements in Spinning, Twisting, and Doubling Frames.
We, PHINEHAS PEARSON CRAVEN, of 16, Devonshire Street, Stockport Road,
Ardwick, Manchester, Gentleman, and FREDERICK RIPLEY, of Acacia, Apperley
[Price 8d.]

page_text: Bridge, Leeds, Baronet, do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
These improvements apply more particularly to the class of machines ordinarily
known as ring-spinning frames, but may be applied to machines of other con-
struction.
In spinning, twisting or doubling yarn or thread on to the bare spindle or
on to a thin tube mounted on the spindle, when discs are employed on the spindles
to assist the yarn or thread to carry round the traveller it is desirable, in order
to fully utilize the assistance given by the disc to the yarn or thread to carry
round the traveller, when starting a new set of cops, to have the traverse of
the copping rail and consequently the chase of the cop bottom abnormally short
relative to the normal length of the cop chase, because in that case the traveller
or yarn guide does not fall so far below the disc as it would if the chase of the
cop bottom were longer. This shortness of chase causes the disc to give more
assistance to the yarn to carry the traveller round, by reason of the more acute
angle formed by the yarn round the edge of the disc on its way to the spindle
or cop. This shortening of the chase may be obtained by using a bottoming-
peg similar to what is used on an ordinary ring-frame but of larger size, that
is to say of greater length. If, however, this bottoming-peg and nothing more
were used, the cop-bottom would become much too thick before the said bottom-
ing-peg ceased to operate.
In order to obviate this inconvenience we use the ordinary bottoming-peg,
but of larger size or greater length than usual either in connection with a pro-
jection on the bowl or drum of the building motion lever, or with a differential
winding-up motion. Whichever of these arrangements is employed the object
is the same, namely to wind up the copping-rail more quickly when forming the
bottom of the cop, than when forming the upper part thereof.
And in order that the said invention may be fully understood we will now
proceed to describe the same with the aid of the accompanying sheet of drawings
in which Figure 1 is a side elevation of so much of a ring-spinning, twisting or
doubling machine as is necessary for the elucidation of one method of carrying
the invention into effect, Figure 2 a partial side elevation of a similar apparatus
somewhat modified, and Figure 3 an elevation taken at right angles to Figure 2.
a represents the copping rail, d one of the spindles, and f one of the above-
mentioned dises mounted on the spindle. 7 represents part of the ordinary
building-motion lever pivotted on a fulcrum-stud m fixed to the frame of the
machine. n is the copping motion cam fixed on the secondary shaft o of the
machine. is a bracket fixed to the building motion lever 7 and having fixed to
it a stud q carrying a friction roller which is acted upon by the cam n.
represents one of the shafts which extend the whole length of the machine and
carry the rollers and chains which actuate the pokers or lifting rods, and through
them the ring or copping rail a. This shaft s is carried in bearings attached to
the frame of the machine as usual. t represents a roller or disc fixed on the
shafts and having connected to it the ordinary well known bottoming-peg u
abovementioned, only made larger or longer than usual. is the ordinary
building-motion chain-drum or bowl mounted on the building-motion lever 7
and rotated slowly and intermittently by worm and ratchet gear in the well
known way.
wis a projection somewhat similar to the bottoming-peg u
mounted on the drum or bowl v. is a chain fixed at one end to the roller t
and at the other end to the building-motion chain-drum or bowl v.
S
It will now be understood that when the machine is in motion, and the
cam n rotating in the direction of the arrow, the said cam allows the friction
roller r, bracket and lever to be raised by the weight of the copping-rail a
and connected parts in the usual way while the larger arc of the said cam from
y to z is passing the friction roller r, and forces down the said roller, bracket,

page_text: and lever while the smaller are of the cam from to y is passing the friction
roller r, the upward movement of the lever corresponding to the winding of
the thread on the chase of the cop from the nose thereof to the base, and the
downward movement of the lever to the return of the thread from the base
peg u.
to the nose of the cop. The downward movement of the lever causes the
chain to turn the roller t and shafts in the direction of the arrow marked on
the former, and to raise the copping-rail, and the upward movement of the
lever slackens the chain and allows the copping-rail to fall. The bottoming-
peg on the roller t occupies the same position as the ordinary bottoming-peg,
and the movement given to the shaft s which actuates the ring or copping rail a
is longer or shorter in inverse proportion to the effective length of the said
If, as before stated, this lengthened peg were alone employed the cop-
bottom would become far too thick before the peg ceased to operate by the wind-
ing of the chain on to the drum or bowl r, and it is to obviate that inconvenience
that we employ the projection w on the drum of the building-motion lever, and
it will be readily seen that as the motion of this drum is in the direction of
the arrow marked upon it the chain will be wound on to the drum at a
quicker rate and consequently the ring-rail or copping-rail will be raised higher
at each traverse while the projection is in operation, than when the chain is
being wound on to the cylindrical part of the drum r, thereby preventing the
undue thickening of the cop-bottoni whilst the proper shortness of the bottom
is maintained by the bottoming-peg w until the said bottom is fully formed
after which the rise of the ring-rail or copping-rail at each traverse will be
normal.
In the differential arrangement shown in Figures 2 and 3 parts which are
similar to those shown in Figure 1 are indicated by similar letters of reference.
1 is a disc or roller mounted on and secured to the shaft s, which is oscillated
backwards and forwards by the up and down movements of the building-motion
lever as before.
2 is a bell-crank lever pivotted on the worm-shaft 3 of the building-motion
lever. When the cop-bottom is being formed a projection 4 formed on or
fixed to the disc 1 stands immediately over the upper end of the lever 2, so
that when the latter is moved upwards by the upward motion of the lever / it
comes in contact with this projection, and the pawl 5 on the other end of the
lever 2 is caused to make a longer stroke, and therefore to rotate the ratchet-
wheel 6, worm-shaft 3, worm 7, worm-wheel 8, and consequently drum further
at each stroke, than when the cop-bottom is not being formed. At this time
the projection 4 is moved out of the path of the lever 2 by the gradual forward
rotation of the shaft s, and the upper end of the lever 2 then comes against the
circular periphery of the disc 1, and the action of the pawl 5 on the ratchet-
wheel 6 is normal. It will be seen that the effect of this arrangement is similar
to that of the arrangement shown in Figure 1, namely, that the winding-up of
the chain on to the building-motion drum is accelerated while the cop-
bottom is being formed, so that the latter is prevented from becoming too thick.
It will be understood that the lever 2 and pawl 5 are returned to their normal
position after each upward movement of the building-motion lever by the pawl
end of the lever being weighted or acted upon by a spring or by any other suit-
able means.
We do not confine ourselves to the precise construction and arrangement of
differential mechanism above described and shown in the drawings, as it is
obvious that such mechanism may be varied without departing from the nature
of the invention.
It will be understood that the size or length of the bottoming-peg u has to
be adapted to produce such a shortening of the length of the cop-bottom as will
enable the disc to give a sufficient amount of assistance to the motion of the
traveller.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that
what we claim is: :―
First. In ring-spinning, twisting or doubling machines in which discs are
employed on the spindles to assist the motion of the traveller, the employment
of an enlarged or lengthened bottoming-peg u for the purpose of shortening
the cop-bottom, in combination with a projection 20 on the building motion chain
drum for the purpose of preventing the cop-bottom becoming too thick while
the said bottoming-peg is in action, substantially as described with reference
to Figure 1 of the drawings.
Second. In ring-spinning, twisting or doubling machines in which discs are
employed on the spindles to assist the motion of the traveller, the employment
of an enlarged or lengthened bottoming-peg for the purpose of shortening
the cop bottom in combination with differential mechanism for the purpose of
preventing the cop-bottom becoming too thick while the said bottoming-peg u
is in action, substantially as described with reference to Figures 2 and 3 of
the drawings.
Third. In ring-spinning, twisting or doubling machines a cop-bottoming-peg,
a lifting chain, or cord and a projection on the building-motion chain-drum, com-
bined and operating substantially as described with reference to Figure 1 of the
drawings and for the purposes specified.
Fourth. In ring-spinning, twisting or doubling machines a cop bottoming-peg,
a lifting chain or cord and a differential mechanism, combined and operating
substantially as described with reference to Figures 2 and 3 of the drawings and
for the purposes specified.
Fifth. In ring-spinning, twisting or doubling machines differential mechanism
for preventing the cop-bottoms becoming too thick while the bottoming-peg u
is in action, which consists of a disc or roller 1 mounted on the lifting shaft s
of the ring-rail or copping-rail, a projection 4 on the said disc or roller 1, a pawl
lever 2 and a pawl 5 acting on the building-motion ratchet-wheel 6 so as to
accelerate the winding-up of the copping chain on to the building-motion
drum while the cop-bottom is being formed, substantially as described with
reference to Figures 2 and 3 of the drawings.
Sixth. In ring-spinning, twisting or doubling machines mechanism for shorten-
ing the cop-bottoms, and for preventing such shortened cop-bottoms becoming
too thick, combined and operating substantially as described.
1000
Dated this 27th day UL ALOCHI
1000
1534.
P. P. CRAVEN,
F. RIPLEY,
Per W. H. Beck,
115, Cannon Street, London, E.C.,
Agent.