Improvements in Differential Gearing for Slubbing, Roving, or similar Frames.
Year: 1894

page_text: Date of Application, 5th Jan., 1894
Complete Specification Left, 18th Aug., 1894-Accepted, 29th Sept., 1894
PROVISIONAL SPECIFICATION.
Improvements in Differential Gearing for Slubbing, Roving, or
similar Frames.
We, SAMUEL HERBERT BROOKS, and RICHARD ALEXANDER DOXEY, both
of the Union Ironworks, West Gorton, in the County of Lancaster, Machine
Makers, and GEORGE SHAW, of Albert Grove, Longsight, Manchester, in the
said county Draughtsman, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the differential motion employed to drive the bobbins
and vary the speed thereof in the slubbing, intermediate, roving, and similar frames
used in the preparation of cotton, wool, and other fibres for spinning.
It consists essentially in the combination and arrangement of straight or spur
gearing in which the driving pinion is secured to the driving shaft and loose on
the shaft at one side of the driving pinion is a sleeve and disc and at the other side
a second sleeve and pinion the first sleeve being connected by a train of wheels
with the driven cone, the second sleeve carrying the bobbin driving wheel and
connected together by one or more carrier wheels rotating in studs attached to the
loose disc which gear with and revolve round the driving wheel and the wheel on
the bobbin sleeve.
In carrying out the invention on the driving shaft--which is geared to the
driving cone in the usual way-is attached a pinion which serves as a driving
wheel. This pinion always rotates with and at the same speed as the shaft.
On one side of this wheel is placed a loose sleeve and disc free to rotate on the
shaft and independently of it. This sleeve carries a wheel or pinion which gears
by a train of wheels with the driven cone and is driven thereby.
At the other side of the driving wheel is placed a second loose sleeve free to
rotate independently of the driving shaft. This second sleeve at one end carries a
pinion of nearly the same size as the driving wheel and to it is attached the bobbin
driving wheel which gears with the wheels carried by the swing.
On the face of the loose disc are mounted one, two, or more studs which project
over the peripheries of the driving wheel and the bobbin sleeve wheel and on these
studs are placed carrier wheels which engage with both and transmit motion from
the one to the other.
The bobbin sleeve wheel is constructed of approximately the same diameter as
the driving wheel but with a greater (or less) number of teeth and the carrier
wheels have the same number of teeth, or the wheels on the driving shaft may
have the same number of teeth in each and the number of teeth in one carrier be
greater than that in the other.
In working should the cone sleeve and disc be held stationary while the driving
shaft rotates, the bobbin sleeve will be rotated at a slower speed than the driving
shaft, and if the cone sleeve is rotated at the same speed as the shaft and
driving wheel, the speed of the bobbin sleeve will be the same as that of the
driving shaft and if the cone sleeve is rotated quicker than the driving shaft the
bobbin sleeve will also rotate quicker in proportion so that as the speed of the cone
varies the speed of the bobbin sleeve varies in proportion.
By this arrangement the bobbin sleeve pinion when in gear is locked with the
driving wheel and what may be termed a positive driving motion is applied to the
bobbin driving wheel and but little strain is put upon the cone strap, the reaction

page_text: of the bobbins being prevented from acting on the cone strap by reason of the
locking of the bobbin sleeve pinion.
Deted this 4th dow of January 1894
W. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Differential Gearing for Slubbing, Roving, or
similar Frames.
We, SAMUEL HERBERT BROOKS, and RICHARD ALEXANDER DOXEY, both
of the Union Ironworks, West Gorton, in the County of Lancaster, Machine
Makers, and GEORGE SHAW, of Albert Grove, Longsight, Manchester, in the
said county, Draughtsman, 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 the differential motion employed to drive the bobbins
and vary the speed thereof in the slubbing, intermediate, roving, and similar
frames used in the preparation of cotton, wool, and other fibres for spinning.
It consists essentially in the combination and arrangement of straight or spur
gearing in which the driving pinion is secured to the driving shaft, and loose on
the shaft at one side of the driving pinion is a sleeve and disc, and at the other
side a second sleeve and pinion, the first sleeve being connected by a train of
wheels with the driven cone, the second sleeve carrying the bobbin driving wheel
and connected together by one or more carrier wheels rotating on studs attached
to the loose disc which gear with and revolve round the driving wheel and the
wheel on the bobbin sleeve.
It will be fully described with reference to the accompanying drawing.
Fig. 1. Front elevation.
Fig. 2. Longitudinal sectional elevation.
On the driving shaft A is placed a pinion B which is secured thereto by set
screw bor otherwise and always rotates with and at the same speed as the shaft.
This pinion B acts as a driving wheel to convey the movement of the shaft A to
the parts of the mechanism.
On the driving shaft A at one side of the driving wheel B is placed a loose
sleeve C and disc C¹ free to rotate on the shaft A and independently of it.
Affixed
to the sleeve C is a wheel or pinion (not shown in the drawings) which is connected
or gears by means of the ordinary train of wheels with the lower or driven cone
and is driven thereby.
On the driving shaft A at the other side of the driving wheel B is placed a
second loose sleeve D free to rotate on and independently of the driving shaft.
Attached to or formed as part of the loose sleeve D is a pinion D' of nearly the
same size as the driving wheel B by which the loose sleeve D is actuated or
rotated. To the free end of the sleeve is attached the bobbin driving wheel which
gears with the wheels carried by the swing.
On the face of the loose disc Care mounted one, two, or more studs E which
project over the peripheries of the driving wheel B and the bobbin sleeve wheel D₁
and on these studs are placed carrier wheels F F which engage with both these
wheels and transmit motion from the one to the other.
The bobbin sleeve wheel D' is constructed of approximately the same diameter
as the driving wheel B but with a greater (or less) number of teeth and the carrier
wheels FF have the same number of teeth, or the wheels on the driving shaft
may have the same number of teeth in each and the number of teeth in one
carrier F be greater (or less) than that in the other F¹. A loose disc G forms

page_text: a support for the other ends of the studs and a cover for the wheels the parts c
and of the discs meeting to enclose and form a cover or guard for the
periphery of the wheels.
g
In working when wheel D' is greater than wheel B should the cone sleeve
and disc C C₁ be held stationary while the driving shaft rotates, the bobbin
sleeve D will be rotated at a slower speed than the driving shaft, and if the
cone sleeve C is rotated at the same speed as the shaft A. and driving wheel B,
the speed of the bobbin sleeve D will be the same as that of the driving shaft
and if the cone sleeve C is rotated quicker than the driving shaft A the
bobbin sleeve D will also rotate quicker in proportion so that as the speed of
the cone or cone sleeve C varies, the speed of the bobbin sleeve D and the
bobbins varies in proportion.
By this arrangement the bobbin sleeve pinion D¹ when in gear is locked
with the driving wheel B and what may be termed a positive driving motion
is applied to the bobbin driving wheel and but little strain is put upon the
cone strap, the reaction of the bobbins being prevented from acting on the cone
strap by reason of the locking of the bobbin sleeve pinion D'.
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 :-
1. Differential gearing for slubbing, roving, and similar frames constructed
with straight or spur gearing having a driving pinion secured to the driving
shaft in combination with a loose sleeve and disc at one side gearing with the
lower cone and a loose sleeve and pinion at the other side gearing with the
bobbins connected together and with the driving pinion by carrier pinions
carried on studs affixed to the loose disc substantially as described.
2. In a differential gearing the combination with the driving shaft A of a
driving pinion B affixed thereto, a loose sleeve and disc C C¹ gearing with the
lower cone, a loose sleeve and pinion D D¹ gearing with the bobbins, the
studs E attached to the loose disc C₁ and the carrier wheels F F¹ by which
the driving wheel B is geared with the wheel D¹ on the loose bobbin sleeve D
substantially as described.
3. Differential gearing for slubbing, roving, and similar frames constructed and
arranged in combination substantially as described and shown.
Dated this 17th day of August 1894.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.