Improvements in Machinery for Spinning and Doubling Cotton and other Fibrous Materials.
Year: 1899

page_text: Date of Application, 12th June, 1899
Complete Specification Left, 3rd Feb., 1900-Accepted, 31st Mar.,
1900
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Spinning and Doubling Cotton
and other Fibrous Materials.
We, DOBSON and BARLOW LIMITED, of Kay Street Works, Bolton, in the County
of Lancaster, Machine Makers, and THOMAS HENRY RUSHTON, of the same address,
Governing Director, do hereby declare the nature of this invention to be as
follows:-
Our invention relates to improvements in machinery for spinning and doubling
cotton and other fibrous materials, and the first part of our improvements con-
sists in regulating automatically the amount of drag applied by a brake to the
spindles as the cops being spun vary in shape and size, thereby compensating for
the variations from the commencement to the completion of the cops and thus
maintaining an even and uniform tension on the yarn being wound upon the
spindles, and the second part of our improvements consists in imparting a to and
from motion to the spindle brakes.
In carrying the first part of our improvements into effect we employ the existing
shaft having three chain blocks fixed upon it. The chain from the top of the first
block passes over a guide pulley and is secured at the other end as formerly to
the end of the heart cam lever. The chain from the bottom of the second block
passes over a guide pulley and is secured at the other end as formerly to a plate
or bar from which are suspended the existing flexible drag chains which are con-
nected to the brakes pivoted to the spindle bolsters. The chain from the top
of the third block has hitherto been actuated by hand to regulate the amount of
drag put on the spindles as the cops vary in shape and size but according to our
invention we effect this regulation automatically by any convenient and suitable
arrangement of mechanism. For example we attach the other end of this third
chain to a block on an additional shaft on which is also secured a pinion gearing
into a pivoted quadrant carrying a bowl working on the face of a cam fixed on a
shaft having a block fixed upon it, and to this block is attached a chain connected
at the other end to a block fixed upon the differential shart, or which may pass
over that block and be attached to another block on the ordinary lifting motion
shaft which is operated by a ratchet or catch wheel in the usual way. As the last
named block is gradually turned by or with the catch motion the chain is
gradually wound on, the cam shaft rotated, and by means of the quadrant and
pinion the chain is gradually unwound from the third block simultaneously
unwinding the chain from the first block and allowing the heart cam lever to
recede from the heart cam and also winding the chain on to the second block
and thus providing an additional adjustment of the existing brake or drag as the
shape and size of the cop being wound on requires. In place of the cam and
quadrant and connections described any suitable equivalents, such as the shaper
used in mules, or a rack and wheels, or wheels and scroll might be employed.
In carrying the second part of our improvements into effect we employ any
convenient and suitable arrangement for imparting an oscillating or to and fro

page_text: traverse motion to the pivoted spindle brakes. For example we may arrange
a traverse rod, band or the like running the full length of the frame or made in
sections if preferred on which are formed or mounted projections or brackets
bearing against or carrying the pivots of the brakes so that as the traverse rod
or equivalent is reciprocated it imparts a corresponding movement to the brakes
and thus prevents the wear being all in one place.
D
1011
1000
H. B. BARLOW & GILLETT,
Agents for Applicants.
Improvements in Machinery for Spinning and Doubling Cotton
and other Fibrous Materials.
We, DOBSON and BARLOW LIMITED, of Kay Street Works, Bolton, in the County
of Lancaster, Machine Makers, and THOMAS HENRY RUSHTON, of the same address,
Governing Director, 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:―
Our invention relates to improvements in machinery for spinning and doubling
cotton and other fibrous materials, and the first part of our improvements con-
sists in regulating automatically the amount of drag applied by a brake to the
spindles as the cops being spun vary in shape and size, thereby compensating for
the variations from the commencement to the completion of the cops and thus
maintaining an even and uniform tension on the yarn being wound upon the
spindles, and the second part of our improvements consists in imparting a to and
fro motion to the spindle brakes.
We accomplish these objects by the mechanism illustrated in the accompanying
two sheets of drawings, in which—
Figure 1 is a sectional and elevation of a cop spinning frame and Figure 2
is a front elevation of the same.
Figure 3 is a sectional plan of some of the spindles and bolsters showing the
traversing spindle brakes in their central position, Figure 4 is a similar view to
Fig. 3 but showing the traversing brakes at one extremity of their traverse and
Figure 5 is a sectional elevation of part of one of the spindles and the traverse
rod.
The
The machine illustrated in Figures 1 and 2 is substantially of the type described
in the Specification to Letters l'atent granted to Ashworth and others No. 17389
of 1898, and in carrying the first part of our improvements into effect we employ
the existing shaft K having three chain blocks L, P, J fixed upon it.
chain M from the top of the first block L passes over a guide pulley M and is
secured at the other end as formerly to the end of the heart cam lever O. The
chain Q from the bottom of the second block l' passes over a guide pulley Q¹ and
is secured at the other end as formerly to a plate or bar S from which are suspended
the existing flexible drag chains R which are connected to the brakes C pivoted
to the spindle bolsters X.
The chain H from the top of the third block J has hitherto been actuated by
hand to regulate the amount of drag put upon the spindles V as the cops vary
in shape and size; but according to our invention we effect this regulation auto-
matically by any convenient and suitable arrangement of mechanism. For
example we attach the other end of this third chain I to a block H' on an

page_text: additional shaft H on which is also secured a pinion H³ gearing into a pivoted
quadrant F carrying a bowl T working on the face of a cam G fixed on a shaft U
having a block B fixed upon it, and to this block is attached a chain B connected
at its other end to a block D fixed upon the differential shaft D'. The shaft D'
we term a differential shaft because it has two blocks, preferably of different
diameters. fixed upon it, the chain B being connected to the smaller block D
and the larger block being connected by a chain E2 to another block E on the
ordinary lifting motion shaft E which is operated by a ratchet or catch wheel in
the usual way for actuating the pokers and lifting rail. The bowl T on the
quadrant F is maintained in contact with the cam G by means of a weight F¹
suspended from a cord passing over a pulley F2 or it might be by a spring.
When a set of cops are commenced there is little or no drag put upon the yarn
as it is being wound upon the spindles, all the weight of the drag chains R being
taken by the plate S and chain Q which at this time is wound to its fullest extent
upon the block P. At this time also the lever is in its lowest position the
bowl 02 upon it being out of range of the cam ()¹. As the cops build and the
shaft E, which actuates the lifting rail turns in the direction indicated by the
arrow, Fig. 2, it actuates, through the connections described, the cam shaft U
and allows the cam G to move the quadrant against the resistance of the
weight F, or its equivalent, thereby, through the pinion H, moving the shaft II
and unwinding the chain H2 thus allowing the weight of the plate S and other
connections to move the shaft K on its axis and unwind some of the chain Q and
simultaneously wind on some of the chain M which raises the lever O. The
continuation of this action gradually raises the lever ( from its lowest position
and also gradually lowers the plates S and allows the chains R to put drag on the
yarn being wound upon the spindles. When the lever has been raised to its
top position all the drag necessary is put upon the spindles through the plate S
having fallen to its lowest position and as the cam i turns and the point of the
cam comes upon the bowl 02 the drag is reduced accordingly. The cam con-
tinually turning allows the quadrant F to be pulled back by the weight F1 which,
turning the pinion H³ in the opposite direction, takes up the chain H2, winding
on the chain Q, lifting the drag plate S and lowering the chain M and lever
which gradually reduces the drag upon the spindles thus regulating the drag
automatically (instead of by hand as in the previously existing machine) as the
shape and size of the cop being wound on requires.
In place of the cam G and quadrant F and connections described, any suitable
equivalents might be employed.
Figures 3, 4 and 5 illustrate a convenient arrangement of mechanism for
imparting a to and fro motion to the spindle brakes according to the second part
of our improvements.
We arrange a traverse rod A, or its equivalent, running the full length of the
frame or made in sections, if preferred, on which are formed or mounted pro-
jections or brackets A' bearing against the pivots B of the brakes ('so that ac
the traverse rod A is reciprocated, which it may be by any well known and suit-
able mechanism for the purpose, it imparts a corresponding movement to the
brakes C and thus prevents the wear being all in one place.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. Mechanism for regulating automatically the amount of drag applied by
brakes to the spindles as the cops being spun vary in shape and size.
2. The combination with the shaft K, its three chain blocks and chains, of
mechanism connected to the third chain H2 for effecting the automatic regulation
of the amount of drag put on the spindles as the cops vary in shape and size.
3. In combination, the shaft K, its chain blocks L, PJ, its chains M. Q. H³,

page_text: the block H¹, shaft H, pinion H³, quadrant F, cam G, shaft U, block B, and
chain B, as means for gradually winding or unwinding the chain H² from the
block J and the chain M from the block L and simultaneously unwinding or
winding the chain Q on to the block P, all substantially as and for the purposes
herein set forth.
4. The combination with a reciprocating traverse rod, of the pivoted spindle
brakes mounted so as to receive a to and fro motion from the said traverse rod,
substantially as and for the purposes herein set forth.
Dated this 2nd day of February 1900.
H. B. BARLOW & GILLETT,
Agents for Applicants, 17, St. Ann's Square, Manchester.