Improvements in Rollers for use in Letterpress, Lithographic, and Collotype Printing Machines, also applicable to Rollers for other Purposes.
Year: 1898

page_text: Improvements in Rollers for use in Letterpress, Lithographic, and
Collotype Printing Machines, also applicable to Rollers for other
Purposes.
We, EDWIN MORETON, of 67, Reddish Road, South Reddish, Stockport, in the
County of Lancaster, Printers' Inking Roller Manufacturer, and HENRY LOGAN,
of the Palatine Hotel, Manchester, Hotel Manager, do hereby declare the nature
of the said invention to be as follows:-
These improvements refer to an invention for which Letters Patent No. 5511
were granted on the 11th day of April 1890, and have for their object to over-
come or remedy the defects of the said previous invention in which the rubber
sleeve was liable to work loose, or to get out of truth, also to stretch or become
distorted under varying conditions of work.
In accordance with the present improvements we form the rubber sleeve of
two thicknesses. The inner thickness we form with flutings, ridges or projec-
tions upon its inner face and upon the outer circumference we apply a thin
covering of textile material. Upon this textile covering we mould, or fix,
with the aid of cement, the further thickness of rubber, and then vulcanise the
"
same.
With the two thicknesses of rubber so compounded we turn the outer circum-
ference to a true circle, and with its sides parallel.
The gelatinous substance for giving the required elasticity and the metal
spindle on which the roller is to be mounted, are then introduced, and moulded
in position, and the effect of the flutings or roughenings in the rubber is to
cause the gelatinous substance to run into the flutings, and thereby act as
keys" for locking and maintaining the rubber in its proper position.
To further lock the parts the spindle may be fluted, or roughened.
Whilst chiefly intended for printers inking rollers for letterpress, lithographic
or collotype purposes, our invention may apply to type-writing machine rollers,
varnishing machine rollers and the like, or to any roller requiring to be of an
elastic character.
Th
1... at Mach 1000

page_text: Improvements in Rollers for use in Letterpress, Lithographic, and
Collotype Printing Machines, also applicable to Rollers for other
Purposes.
We, EDWIN MORETON, of 67, Reddish Road, South Reddish, Stockport, in the
County of Lancaster, Printers' Inking Roller Manufacturer, and HENRY LOGAN,
of Palatine Hotel, Manchester, Hotel Manager, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:-
"
These improvements refer to an invention for which Letters l'atent No. 5511
was obtained by one of us on the 11th day of April 1890, and have for their
object to overcome or remedy the defects of the said previous invention in
which the rubber sleeve is liable to work loose or to get out of truth, also to
stretch or become distorted under varying conditions of work.
=
In accordance with the present improvements we form the rubber sleeve of
two thicknesses. The inner thickness we form with flutings, ridges or projec-
tions upon the inner face and upon the outer circumference we apply a thin
covering of textile material. Upon this textile covering we then mould, or fix
with the aid of cement, the further thickness of rubber and then vulcanise the
same.
With the two thicknesses of rubber so compounded we turn the outer circum-
ference to a true circle, and with its sides parallel.
The gelatinous substance for giving the required elasticity and the metal
spindle on which the roller is to be mounted, are then introduced and moulded
in position, and the effect of the flutings or roughenings in the rubber is to
cause the gelatinous substance to run into the flutings, and thereby act as
keys" for locking and maintaining the rubber in its proper position.
And in order that our said invention may be more readily understood and
carried into practical effect we have hereunto annexed a sheet of drawings and
will now proceed to describe the same with the various figures of reference
marked thereon.
Fig. 1 represents our improved roller with one end in section to shew the
several component parts.
Figs. 2 to 5 shew the various stages of its manufacture.
Figs. 6 and 7 shew certain modifications of the roller spindle.
(A) designates the inner tube of india-rubber with flutings (A¹), (B) the outer
tube of india-rubber,-(C) the intermediate layer of textile material, and (D) the
stock or spindle. (1) designates the gelatinous composition within the com-
posite tubing engaging with flutings (A¹) of tube (A) and spindle (D).
In proceeding to make the roller we prefer the following modus-oparandi:-
We first take a mandril, (F) of the length of the intended roller, and upon its
exterior surface produce any suitable form of roughening, but preferably fine
parallel flutes or corrugations for the entire length. Upon such mandril we
apply india-rubber in its pasty or plastic condition filling all the flutes and
evenly spreading it over the entire surface as shewn in Fig. 2. We then wrap
around such rubber covered mandril a layer of thin textile fabric, as shewn in
Fig. 3, and fix the same down upon the rubber by cement or rubber solution.
We then apply a further, but thinner, layer of plastic india-rubber, as shewn
in Fig. 4. We then place the mandril and its covering in a vulcanising cham-
ber, and by heating in the ordinary way we vulcanise the said coverings into
a homogeneous mass.

page_text: Immediately after leaving the vulcanising chamber the outer covering or
sleeve of rubber (B) (owing to the fluted cross-section of the inner tube (A)) has
the peculiar wavy outline shewn in Fig. 4, hence when it is required to give
the roller a perfectly true circumference we grind the said outer surface until
the wavy outline is eliminated, and a perfectly smooth and regular exterior
surface is obtained, as shewn in Figs. 1 and 5.
The composite tubing is then ready to receive the gelatinous compound (E)
and to effect the introduction of such compound we place the tubing vertically
into a mould, place and support the stock (D) centrally within such mould, and
then run the gelatinous compound, in a fluid state, into the space surrounding
the spindle until perfectly full from end to end. Being in a fluid state the
compound readily finds its way into the flutings (A), and when set partakes of
the same shape, and thus locks with the composite tubing, and prevents all
lateral twist or distortion in relation to the spindle, whilst the textile. inser-
tion (C) effectually resists all undue stretching of the rubber.
In such way we produce a roller with the maximum elasticity within the
compass of the roller, and at the same time one that permanently retains its
proper relationship with the spindle, which features for good printing are of
the highest importance.
Although we believe the flutings (A) will be sufficient for properly locating
the composite tubing upon the spindle we may form the spindle with Hutings or
roughenings, pegs, threads or flanges, as shewn in Figs. 6 and 7 with which the
gelatinous compound may also engage and thus lock both spindle and tubing.
In lieu of the roughening, a piece of tape or cord wrapped in spiral form round
the spindle might suffice.
To give a finish to the ends of the roller, also to support such ends, and
enclose the gelatinous compound we may provide small metal or other discs
within the inner tube and adapted to be fixed by fine wire or cement, or to be
fixed by projections thereon taking into the gelatinous compound, or by being
fixed or keyed to the spindle or in some other manner as may be suitable for
the purpose.
Although we prefer the tubes (A) and (B) to be of india-rubber they may be
of any suitable substitute.
Whilst chiefly intended for printers inking rollers for letterpress, lithographic
or collotype purposes our invention is also applicable to platen rollers for type
writing machines, varnishing machine rollers, and to any other rollers requiring
to be of an elastic character.
Having thus 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: In a printers' inking roller or the like, the combination of super-imposed
tubes or layers of india-rubber (or its substitute), a textile insertion between
said tubes or layers, flutings or roughenings in, or on, the inner tube, a spindle
or stock passing through said tubes, and gelatinous or like compound between
the said tube and spindle or stock, substantially as set forth.
2: In a process for the production of a printers' inking roller or the like,
applying a layer of rubber in a plastic state to a fluted or roughened mandril,
covering such rubber with textile material and fixing same by adhesive solu-
tion, super-imposing a further layer of rubber and vulcanising into composite
mass, grinding the outer surface to an even circumference, removing the com-
posite tubing from mandril, placing said tubing in a mould around a central
stock or spindle, and moulding gelatinous compound between said tubing and
stock and retaining the said compound within the tube by means of end caps
or discs, as set forth.

page_text: 3:
Composite tubing with flutings or the like upon the inner face, as and for
the purpose set forth.
T
1000
EDWIN MORETON.
HENRY LOGAN.
By John G. Wilson & Co.,
55, Market Street, Manchester, Agents.