Improvements in Bobbins for Ring Spinning and Doubling Machines.
Year: 1895

page_text: Date of Application, 21st Feb., 1895
Complete Specification Left, 23rd Dec., 1895-Accepted, 25th Jan., 1896
PROVISIONAL SPECIFICATION.
Improvements in Bobbins for Ring Spinning and Doubling
Machines.
We, GEORGE PALEY, of Bank Top Mills, Preston, in the County of Lancaster,
Cotton Spinner and Manufacturer, and JAMES ANDERTON SUTCLIFFE, of Globe
Works, Blackburn, in the same county, Sheet Metal Engineer, do hereby declare
the nature of this invention to be as follows:-
This invention has reference to bobbins used in ring spinning and doubling
machines and consists in making the said bobbins of sheet metal in such manner
that they shall be of less weight and at the same time more durable and truer
running or better balanced on the spindle than bobbins made of wood or paper as
heretofore.
As adapted for a common type of ring spindle namely the Rabbeth-in which
the spindle carries a tapering concentric shell at whose lower part is the whorl
surmounted by a brass cup for the reception of the lower end of the ordinary
wooden bobbin our improved sheet metal bobbin consists of a tapered tubiform
shell closed in at the top around a metal funnel-shaped centre piece but having a
narrow opening or slit down one side to the bottom its lower end being held within
a C-shaped or split-ring spring. Thus the improved sheet metal bobbin máy, be
pressed down upon the tapering concentric shell so as to obtain a firm hold (by
frictional contact) thereon whilst the employment of the spring also prevents the
permanent opening out of the sheet metal tubular bobbin through being repeatedly
pressed down on the taper shell..
We dispense with the usual brass cup-herein before referred to and substitute
therefor a ring or collar so that the improved bobbin may be pressed down against
it that is to say to a uniform depth. The jamming of the lower end of the bobbin
against the said collar serves to grip or hold the "end" or thread from the bobbin
previously removed in the process of doffing. The upper end of the spindle
is guided into the central hole at the top of the improved bobbin along the
funnel-shaped centre-piece hereinbefore mentioned.
The lower end of the improved bobbin is preferably corrugated or perforated to
assist the yarn or thread to adhere more readily thereto.
Dated this 21st dez of Tobruers 1805
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page_text: 1
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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 has reference to bobbins used in ring spinning and doubling
machines and consists in making the said bobbins of sheet metal in such manner
that they shall be of less weight and at the same time more durable and truer
running or better balanced on the spindle than bobbins made of wood or paper as
heretofore.
As adapted for a common type of ring spindle namely the Rabbeth-in which
the spindle carries a tapering concentric shell at whose lower part is the whorl
surmounted by a brass cup for the reception of the lower end of the ordinary
wooden bobbin-our improved sheet metal bobbin consists of a tapered tubiform
shell closed in at the top around a metal funnel-shaped centre piece but having a
narrow opening or slit down one side to the bottom its lower end being held within
a C-shaped or split-ring spring. Thus the improved sheet metal bobbin may.be
pressed down upon the tapering concentric shell so as to obtain a firm. hold (by
frictional contact) thereon whilst the employment of the spring also prevents the
permanent opening out of the sheet metal tubular bobbin through being repeatedly,
pressed down on the taper shell.
We dispense with the usual brass cup-hereinbefore referred to and substitute
therefor a ring or collar so that the improved bobbin may be pressed down against
it that is to say to a uniform depth. The jamming of the lower end of the bobbin
against the said collar serves to grip or hold the "end" or thread from the bobbin
previously removed in the process of doffing. The upper end of the spindle
is guided into the central hole at the top of the improved bobbin along the funnel
shaped centre-piece hereinbefore mentioned.
The lower end of the improved bobbin is preferably corrugated or perforated to
assist the yarn or thread to adhere more readily thereto.
In the accompanying drawings,
Fig. 1 shews our improved sheet metal bobbin (in section) as above described
mounted upon a ring spindle (in elevation) of the Rabbeth type.
Fig. 2 shews in elevation one.of the bobbins detached..
Fig. 3 a bobbin corrugated spirally for the purpose of obtaining increased
strength and
Fig. 4 our improved bobbin having a spiral groove or screw-thread for the
purpose of adapting it to wet spinning in which the flax or other wet spun yarn
dries and becomes slack on the bobbin the provision of the spiral groove enabling
the attendant to tighten the cop of yarn on the bobbin by screwing it up
¡thereon..
"
a is the tapered tubiform. sheet metal shell closed in at the top around the
funnel-shaped centre piece 6 (which we preferably make of wood) and permanently
fixed in position by having the sheet metal "spun or pressed into a groove c.
We preferably place a washer d of sheet metal on the top of the centre piece band
then turn over inwardly the upper edge of the shell (as shewn at Fig. 1) and then
dip the end part of the bobbin into molten solder and so fasten the parts together.
Or we may adopt the constructions shewn at Figs. 5 and 6-which are enlarged
detail views. At Fig. 5 we press the sheet metal inwardly and concentrically so as
to form a shoulder e and insert the reduced part f within a metal ring 9 and solder
the parts together as before. At Fig. 6 we also form a shoulder e and employ a
ring of channel section within the grooved part of which the end of the shell is
inserted and solder the parts together as before. j is the narrow opening or slit
extending from below the soldered parts at the top of the bobbin to the bottom
thereof and k is the C-spring which embraces the lower end of the bobbin. It will
be observed (see Figs. 2, 3 and 4) that the opening left between the adjoining ends
of the spring k is not quite opposite to the slit j. This is done in order to prevent
the yarn or thread getting into the slit j and thereby causing breakage of the yarn
and unnecessary trouble. I are grooves or corrugations at the lower end of the
bobbin for causing the yarn or thread to be held more securely thereon..

page_text: Figs. 7, 8 and 9 are detail views shewing the method of placing and securing in
position on the shell a the spring k. The shell a is first of all left with its lower
end plain having a protruding collar m as at Fig. 7 and the spring k having been
placed thereon the bottom of the shell is pressed against it as shown at Fig. 8.
whereupon the collar m is spun or pressed down upon the spring as shewn
at Fig. 9.
Having now particularly described and ascertained the nature of the said inven..
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improved bobbin for ring spinning and doubling machines consisting of
a slitted sheet metal shell secured at its upper end to an internal centre piece and
having at its lower end an enclosing C-spring substantially as herein described and.
sh
Dated this 23rd day. of December 1895.
For the Applicants,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent..