Improvements in Machines for Spinning and Twisting Cotton and other Yarns.
Year: 1899

page_text: Date of Application, 23rd Nov., 1899
Complete Specification Left, 21st Aug., 1900-Accepted, 13th Qct., 1900'
PROVISIONAL SPECIFICATION.
Improvements in Machines for Spinning and Twisting Cotton and
other Yarns.
I, JAMES HARRISON Sub-Manager for Brooks & Doxey Limited, Machinists,
Union Iron Works, West Gorton, Manchester, in the County of Lancaster,. do
hereby declare the nature of this invention to be as follows:-
-
This invention relates to that class of spinning or twisting frame in which the
yarn is wound upon a cop nose downwards by an inverted cup which is rotated
at a high speed around the spindle and a variable drag applied to the spindle by
the weight of a chain or the like or lever acting upon a pad or roller resting
against the spindle.
The drag upon the spindle is varied as the yarn is laid upon the thicker or
thinner part of the cop by the lifting of a rail or rod to which the chain or other
appliance is attached such rail being actuated by a lifting chain passing over
bowls and moved in one direction or the other by a lever and cam.
It is also necessary to further vary the drag at the commencement of the cop
until the cop bottom is fully formed and this has hitherto been done by hand by
means of a slide actuated by a screw to which an adjusting chain is attached.
My invention consists essentially in an automatic motion applied to or in com-
bination with the regulating slide and chain that will gradually cause the drag
upon the spindle to be increased at each lift or traverse from the commencement
of the cop until the cop bottom is formed and then stop the movement of the
regulating slide or throw it out of action leaving the machine to continue with
the same amount of minimum and maximum drag upon the spindle at each lift
until the cops are completed.
In carrying out the invention it may be applied in various ways such as by
applying a ratchet and pawl to the screw and moving the pawl at each lift from
some moving part of the machine. Or the screw may be moved forward by a
rack or a rack may be substituted for the screw or in other suitable manner.
In one arrangement a lever may be pivoted or suspended from the beam and
the lower end be actuated by a cam on the cam shaft or by the same cam that
lifts the spindle rail. This lever is pivoted or otherwise connected to a horizon-
tally reciprocating bar with wedge shaped end sliding to and fro in a fixed
bracket. On the regulating screw is placed a ratchet wheel and on the inclined
end of the wedge rests the tail or lever of a pawl which is raised at each forward
movement of wedge shaped bar to move the ratchet wheel forward one or more
teeth and thus gradually move the regulating slide to which the chain is attached.
To the regulating slide is also fitted an arm or finger capable of adjustment
which travels forward with the regulating slide and when the cop bottom is
completed engages the cam actuated lever moving it out, of contact with the cam
and thereby stopping its action. The ratchet wheel is changeable to suit different
counts of varn.

page_text: It is obvious that the ratchet and pawl may be actuated direct from the rail
lifting mechanism or from the rail or a rack may be employed to actuate the
screws or sliding rack or other sliding device may be employed instead for the
same purpose of automatically applying a gradual movement to the screw or
slide to work the drag chain forward and thereby increase the drag until the cop
bottom is formed.
"Improvements in Nachines for Spinning and Twisting Cotton and
other Yarns"
I, JAMES HARRISON, Sub-manager for Brooks and Doxey Limited, Machinists,
Union Iron Works, West Gorton, Manchester, in the County of Lancaster, 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 that class of spinning or twisting frames in which the
yarn is wound upon a cop nose downwards by a cup shaped flyer which is rotated
at a high speed around the spindle and a variable drag applied to the spindle by
the weight of a chain or the like or lever acting upon a pad or roller resting
against the spindle, as described in the Specification of Ashworth's Patent
No. 17389 A.D. 1898.
The drag upon the spindle is varied as the yarn is laid upon the thicker or
thinner part of the cop by the lifting of a rail or rod to which the chain or other
appliance is attached such rail being actuated by a lifting chain passing over
bowls and moved in one direction or the other by a lever and cam.
It is also necessary to further vary the drag at the commencement of the cop
until the cop bottom is fully formed and this in Ashworth's specification is done
by hand by means of a slide actuated by a screw to which an adjusting chain is
attached.
My invention consists essentially in an automatic motion applied to or in com-
bination with the regulating slide and chain that will gradually cause the drag
upon the spindle to be increased at each lift or traverse from the commencement
of the cop until the cop bottom is formed and then stop the movement of the
regulating slide or throw it out of action leaving the machine to continue with
the same amount of minimum and maximum drag upon the spindle at each lift
until the cops are completed.
The invention will be fully described with reference to the accompanying
drawings in which sufficient of the spinning frame is shown to illustrate it.
Fig. 1. Side elevation.
Fig. 2. End elevation.
The regulating slide A to which the adjusting chain B is attached is mounted
upon and moved to and fro by the rotation of the screw C as heretofore.
To the end of the screw CI affix a ratchet wheel c with a pawl D pivoted to
the lever d by which the wheel c and screw C are rotated tooth by tooth.
An oscillating lever E is pivoted or suspended from the beam F the lower end
of which is moved to and fro by a cam e on the cam shaft. Or the lever E may
be oscillated by the same cam that lifts the spindle rail.
The lever E is connected by the transverse piece e¹ and second lever E¹ with

page_text: a reciprocating bar G which moves in a path approximately at right angles to
the lever E E. The lever E E' is preferably made or cast in one piece.
The bar G is pivoted at one end to the lever E¹ and at the other end is formed
with a wedge shaped head g which slides to and fro through a slot or hole in a
fixed bracket H thereby giving a combined horizontal and vertical movement to
the upper end of the head 9.
The lever d of the pawl 1) rests upon the upper inclined edge of the head g of
the reciprocating bar G which is raised at each stroke or movement of the bar
thereby moving the pawl D and by it the ratchet wheel c forward a tooth or
teeth. This movement or rotation of the ratchet wheel c and with it the screw C
gradually moves the regulating slide A to which the chain B is attached.
To the regulating slide A is also fitted an arm or finger K capable of adjust-
ment thereon which travels forward with the regulating slide and when the cop
bottom is completed engages the oscillating lever E moving it out of contact
with the cam e and thereby stopping its action.
When the cop is completed the slide A is wound back until the stop L comes
in contact with the fixed bracket H. It is then in a position to commence
building again. This stop L is also adjustable.
The ratchet wheel is changeable to suit different counts of yarn. It is obvious
that the ratchet and pawl may be actuated direct from the rail lifting mechanism
or from the rail or a rack may be employed to actuate the screws or a sliding
rack or other sliding device may be employed instead for the same purpose of
automatically applying a gradual movement to the screw or slide to work the
drag chain forward and thereby increase the drag until the cop bottom is formed.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I wish it to be under-
stood that I am aware that, in spinning or twisting machines of the class to
which my invention applies, it has been proposed to use mechanism for regulating
automatically the amount of drag applied by the pad or roller resting against
the spindle, as the cops vary in shape and size, but I declare that what I claim
is:-
1. In a machine for spinning and twisting yarns the application to or com-
bination with the regulating slide and chain by which the drag upon the spindle
is regulated of an automatic motion operated by a moving part of the machine
whereby the drag upon the spindle may be gradually increased at each lift or
traverse from the commencement of the cop until the cop bottom is formed
substantially as described.
2. In a machine for spinning and twisting yarns the combination with the
regulating slide A adjusting chain B and actuating screw C of the ratchet wheel o
and pawl D for rotating the screw the oscillating lever E E' actuated by a cam e
and the reciprocating bar G with wedge shaped head by which the pawl is
operated substantially as and for the purpose described.
MACY CLITA
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WM. P. THOMPSON & Co.,
Manchester, Liverpool, London, & Birmingham, Patent Agents.