IMPROVEMENTS IN DRAWING ROLLERS FOR SPINNING MACHINES
Year: 1882

page_text: LETTERS PATENT to Alfred Julius Boult of the firm of W. P. Thompson
& Boult, Agents for Foreign Patent Solicitors of 323 High Holborn in the
County of Middlesex, and 6 Lord Street Liverpool in the County of Lancaster
Engineer for an Invention of IMPROVEMENTS IN DRAWING ROLLERS FOR
SPINNING MACHINES A communication to him from abroad by Constant
Jenatzy-Leleux of Schaerbeeck lez-Bruxelles in the Kingdom of Belgium
Manufacturer,
PROVISIONAL SPECIFICATION left by the said Alfred Julius Boult at the
Office of the Commissioners of Patents on the 24th July 1882.
ALFRED JULIUS BOULT of the firm of W. P. Thompson & Boult Agents for
Foreign Patent Solicitors, of 323 High Holborn in the County of Middlesex
and 6 Lord Street Liverpool in the County of Lancaster " IMPROVEMENTS
IN DRAWING ROLLERS FOR SPINNING MACHINES [A communication to him from
abroad by Constant Jenatzy-Leleux of Schaerbeeck lez-Bruxelles in the Kingdom
of Belgium Manufacturer.]
"
This invention relates to the drawing rollers for spinning frames employed in
spinning flax hemp and other fibres. The object of such rollers is generally, to draw
the sliver from the bobbin and to deliver it to the spindle.
The said rollers have heretofore generally been made either of wood, gutta
percha or India rubber one or the other of such materials being used alone. The
rollers as generally made are however expensive and not durable.
Now this invention has for object a simple and efficient arrangement or con-
struction of such drawing rollers and according to the same a drawing roller is
made in two halves so as to be divisible at its periphery, one of these balves has a
male screw thread the other a female one, so that they may be firmly connected.
One of said parts is broader than the other and the broad half has at one part
of its width a reduced diameter so that when the two halves are joined a groove
is formed at the centre of the periphery. A circular band of gutta percha, India
rubber or other suitable material, and of the same width as the roller when complete,
bas in its interior a projecting flange which fits into the groove formed as above
stated. The sides of these grooves are recessed or counter sunk.
In fitting up the roller, the band is slipped on the broader part or half and the
narrow part is then screwed on the countersunk groove between the same serves
to hold the band fast. The band which forms the working rim of the roller may
or may not be grooved or fluted as desired.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Alfred Julius Boult in the Great Seal Patent Office on the
24th January 1883.
ALFRED JULIUS BOULT of the firm of W. P. Thompson and Boult, Agents for
Foreign Patent Solicitors, of 323 High Holborn in the county of Middlesex and
6 Lord Street Liverpool in the County of Lancaster Engineer "IMPROVEMENTS
IN DRAWING ROLLERS FOR SPINNING MACHINES a communication to him from
abroad by Constant Jenatzy Leleux, of Schaerbeeck-les-Bruxelles, in the Kingdom
of Belgium Manufacturer.
These cylinders or rollers have for their object to draw or deliver the sliver from
the bobbin and to conduct it to the spindle which imparts thereto the torsion
required for the thread to be produced; they have heretofore been constructed of
wood, gutta-percha or India-rubber, but in all cases exclusively from one or the
other of these materials. Wood requires so frequently to be repaired that it has
been generally abandoned and replaced by gutta percha, the chief objections to
which are its high price and that it soon wears out and constantly necessitates
heavy expense to keep it in good repair It has therefore been sought to replace
it with hardened India rubber but without any great success, because if its price is
less high it presents more numerous inconveniences.
After various fruitless attempts a very simple arrangement has been devised
which fulfills all requirements and is very economical.
This invention consists in a roller of special form and construction which will
last for an indefinite time.
In a previously patented drawing roller the spinner had himself to provide for
replacing the roller or cylinder properly so called; according to the present system
this cylinder can not wear out moreover its peculiar arrangement and its special
construction allow the band to be perfectly applied to the cylinder as is hereinafter
described and shown in the annexed drawings in which
Fig 1 is an edge view of the drawing roller with its compressing screw
Fig 2 is an elevation of a band or ring of caoutchouc, gutta percha or other
suitable material.
Fig 3 is a transverse section of Fig 2
Fig 4 is an elevation of the drawing roller fitted with its band
Fig 5 is a transverse section of the same
Fig G is an elevation of section A of the cylinder (Fig 1) showing the groove
made in its periphery.
A and A are the sections or halves of the roller or cylinder B is the band,
B is a sharp-edged rib on the interior of the band C and C are the circular
grooves made concentric with the periphery in the two sections of the roller
on the sides which face each other. D is the screw thread cut on the
section A¹ of the cylinder which receives the screw-threaded ring E of the section A
of the cylinder. F is the space left on joining the two roller-sections forming a
flat bottomed groove which is to receive the rib B¹ of the band. G is the interior
periphery of section A' of the cylinder upon which the rib B¹ of band B bears.
The parts of the roller being supposed to be disjointed the band B is placed upon
the section A in such a manner that the rib B' bears upon G; the ring E of
section A is then applied to the male screw D, and the two sections A and A¹ are
sorewed together and the rib B¹ of band B then completely fills the space F and by
tightening up as much as is required, and gradually, the rib B¹ is made to become
encased in the grooves C and C so that it is very firmly pressed and so that it offers
considerable resistance. The arrangement of the two sections and of the grooves

page_text: allows moreover of the rib being further compressed if, by long use and continual
compression it should become loose.
The nature of this band the more assures its great durability as caoutchouc or
gutta percha can not be placed in better conditions than those proper for spinning
flax, hemp oakum or jute, that is to say there are water, motion, and a temperature
which is favourable to their conversation.
The flutings need not previously be produced on the band if this is made of
supple or half-hardened, India rubber, seeing that it is easily compressed and that
the contact with the metal roller will produce them without ever allowing them to
foul one another when they are fitted up together. This point is very important as
it saves the work in making the flutings and moreover because the regularity of
the flutings prevents excessive wear of the rollers as well of the metal one as of the
rubber coated one which occurs in many factories; and lastly because, if there is any
irregularity in the flutings between the two rollers, these may considerably impair
the quality of the yarn.
It will be understood without further description that the metal roller, working
against an elastic surface which takes its impression will not become worn at all,
or so little, that this may be considered insignificant, which by the reduction in the
cost of keeping the same in good repair will in itself result in the adoption of this
system.
Modifications may of course be made; thus the rollers may be formed solid or
hollow; the groove F and rib B' may be rounded in section instead of being square;
the form or arrangement of grooves C and C¹ may be altered. The rollers can be
made of copper, iron, hard wood or other suitable material; and the bands of elastic
or hardened or half hardened India rubber, gutta percha or other suitable material
and they may be fluted or not as desired.
The cost of a band of caoutchouc or gutta percha, which is the only part which
may require renewal, will be less than a third of the cost of a roller of gutta percha
or hardened India rubber.
If to this advantage it is added, that this band if it need not be fluted will have
at least double the wear of a roller of gutta percha or hard rubber then the saving
to the spinner under this head will amount to something like 5/6th of the usual
cost, which in some establishments will amount to considerable sums.
Having now described this invention as communicated to me by my foreign
correspondent and the method of performing the same I wish it to be understood
that what I claim and desire to protect under the hereinbefore in part recited
Letters Patent is:
The herein described construction of drawing roller for spinning frames and the
like substantially as set forth and shewn in the accompanying drawings,
In witness whereof I the said Alfred Julius Boult have hereunto set my
hand and seal this nineteenth day of January in the year of Our Lord
one thousand eight hundred and eighty three