IMPROVE- MENTS IN SPINNING MACHINESed.
Year: 1883

page_text: LETTERS PATENT to Lorentz Albert Groth, K.G.V. Civil Engineer and Managing
Director of The Universal Inventors and Patentees Financial Company
Limited, 30 Finsbury Pavement London E.C. for an Invention of "IMPROVE-
MENTS IN SPINNING MACHINES Communicated to him from abroad by
J. J. Bourcart, a person resident at Zurich, in the Swiss Republic.
"
PROVISIONAL SPECIFICATION, left by the said. Lorentz Albert Groth at
the Office of the Commissioners of Patents on the 19th March, 1883.
"
LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Managing Director of The
Universal Inventors and Patentees Financial Company Limited, 30 Finsbury
a
IMPROVEMENTS IN SPINNING MACHINES" commu-
Pavement London E.C.
nication to me from abroad by J. J. Bourcart, a person resident at Zurich, in the
Swiss Republic
It is sometimes necessary in spinning machines, especially in roving and fine
spinning frames that the bobbins (aufsteckspulen) should be wound as mule cops
or otherwise, so that they unwind gradually from the point downwards
If these cops contain (as is most frequently the case) strongly twisted thread
there arises the inconvenience that the latter stretches with difficulty
In order to obviate this and similar inconveniences the drawing mechanism
is arranged according to this invention in combination with the mounting
(Aufsteckung) for the cops as follows:-steel axes each carry two drawing rollers.
These axes run in boxes which are placed in the drawing mechanism and so are
subjected to a certain friction only.
By this means the arrangement of drawing Tollers generally used for mules
etcetera can be used for spinning machines with greater speed of feed than has been
attainable with the arrangements heretofore in use. In order to adapt this new
arrangement to every purpose and quality of slubbing instead of the usual
arrangement of mounting (aufsteckanordung) the bobbins (aufsteckspulen) receive
an independent, motion the speed of which can be brought into relation with that

page_text: of the feed roller of the drawing mechanism. The cops or bobbins are placed and
pressed firmly into funnel like axes. These axes can be furnished with apparatus
for clamping the cops or bobbins to them or with spindles for paper sockets or with
perforated bobbins or with flanged bobbins. Each of these axes carries below it a
small conical toothed wheel (or a friction or side cone can be used if preferred)
into which gears a conical wheel on a main shaft from which the relative motion
is communicated to the drawing roller arrangement or vice versa. An ordinary
rotating spindle may also be employed instead of the above mentioned funnel like
axes
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Lorentz Albert Groth in the Great Seal Patent Office on the
19th September 1883.
LORENTZ ALBERT GROTH. K.G.V. Civil Engineer and Managing Director of The
Universal Inventors and Patentees Financial Company Limited 30 Finsbury
Pavement London E.C.. IMPROVEMENTS IN SPINNING MACHINES." a commu-
nication to me from abroad by J. J. Bourcart, a person resident at Zurich, in the
Swiss republic
It is sometimes necessary in spinning machines especially in roving and fine
spinning frames that the bobbins (Aufteckspulen) should be wound as mule cops or
otherwise so that they unwind gradually from the point downwards
If these cops contain (as is most frequently the case) strongly twisted thread
there arises the inconvenience that the latter stretches with difficulty In order to
obviate this and similar inconveniences the drawing mechanism is arranged
according to this invention in combination with the mounting (Aufsteckung) for
the cops as follows:
Steel axes a each carry two drawing rollers b. These axes a run in boxes c
which are placed in the drawing mechanism and so are subjected to a certain
friction only.
By this means the arrangement of drawing rollers generally used for mules
etcetera can be used for spinning machines with greater speed of feed than has been
attained with the arrangements heretofore in use. In order to adapt this new
arrangement to every purpose and quality of slubbing instead of the usual
arrangement of mounting (Aufsteckanordung) the bottom (aufsteckspulen) receive
an independent motion the aspect of which can be brought into relation with that
of the feed roller of the drawing mechanism. The cops or bobbins d are placed
and pressed firmly into funnel like axes e. These axes e can be furnished with
apparatus for clamping the cops or bobbins d to them or with spindles for paper
sockets or with perforated bobbins or with flanged bobbins. Each of these axes e
carries below it a small conical toothed wheel ƒ (or a friction or side cone can be

page_text: used if preferred) into which gears a conical wheel g on a main shaft h from which
the relative motion is communicated to the drawing roller arrangement or vice
versa.
An ordinary rotating spindle may also be employed instead of the above
mentioned funnel like axes e.
Having now described the nature of the said invention and the manner in which
the same is to or may be carried into effect I would have it understood that what
I claim is
First The arrangement whereby usual or modified drawing frames are fitted with
cylinder axes running in bearings, the rotating velocity of the said cylinder axes
being regulated according to the speed of the attached cups, bobbins &c as herein
described and illustrated in the drawings
Second. The above mentioned arrangement in connection with continuous
spinning machines
Third, The arrangement of moveable and rotating cops, bobbins etc for mules or
any continuous spinning machine.
In witness whereof I the said Lorentz Albert Groth have hereunto set my hand
and seal this fourteenth day of September in the year of Our Lord one thousand
eight hundred and eighty three.
LORENTZ ALDENT GROTH (L.S.)