Improvements in or relating to Paper making Machinery.
Year: 1890

page_text: Date of Application, 15th Aug., 1890
Complete Specification Left, 4th May, 1891-Accepted, 6th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in or relating to Paper making Machinery.
We, JOHN HUTCHINSON SHORROCK of the firm of J. & R. Shorrock, of Bolton
Road and Lee Foundries, Engineers and Iron Founders, and JOHN MARTIN of
27 Malta Street, Paper Maker, both of Darwen in the County of Lancaster, do
hereby declare the nature of our said invention to be as follows:-
This invention refers to improvements in or relating to paper-making machinery
and has for its object that of increasing the production of paper. This we effect by
suitably disposing one or more perforated tubes alongside the surface of the drying
cylinder or cylinders, and charging the said pipe or pipes with a blast of air from
a fan or its equivalent to impinge on the surface of the drying cylinder or cylinders
or otherwise. Suitable arrangements are provided for conveying away condensed
steam or water.
In another modification we dispense with the perforated pipes and fan, and
substitute therefor a driven shaft or centre with vanes or wings to cause a current
of air to impinge on the surface of the drying cylinder or otherwise as before
described.
In another modification we place the perforated pipe or pipes at a point of the
drying cylinder or cylinders, and instead of discharging a current of air on the
pulp or wet paper we exhaust the steam arising from the cylinder by drawing it
away from the cylinder and condensing it by fan or exhauster.
Dated the 14th August 1890.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Paper-making Machinery.
We, JOHN HUTCHINSON SHORROCK of the firm of J. & R. Shorrock, of Bolton
Road and Lee Foundries, Engineers and Iron Founders, and JOHN MARTIN of
27 Malta Street, Paper Maker, both of Darwen in the County of Lancaster, do
hereby declare the nature of our said 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 refers to improvements in or relating to paper-making machinery
and has for its object that of increasing the production of paper. This we effect by
suitably disposing one or more perforated tubes alongside the surface of the drying
cylinder or cylinders, and charging the said pipe or pipes with a blast of air from a
fan or its equivalent to impinge on the surface of the drying cylinder or cylinders
or otherwise. Suitable arrangements are provided for conveying away condensed
steam or water.
In another modification we dispense with the perforated pipes and fan, and
substitute therefor a driven shaft or centre with vancs or wings to cause a current
of air to impinge on the surface of the drying cylinder or otherwise as before
described.
In another modification we place the perforated pipe or pipes at a point of the
drying cylinder or cylinders, and instead of discharging a current of air on the pulp
or wet paper we exhaust the steam arising from the cylinder by drawing it away
from the cylinder and condensing it by fan or exhauster.

page_text: DESCRIPTION OF DRAWINGS.
Fig. 1 is a side elevation of so much of a single cylinder paper-making machine
as is necessary to illustrate our present invention, wherein the pulp or wet paper is
impinged upon by a blast of air to facilitate diying and increase the production.
Fig. 2 is an end elevation of Fig. 1.
Fig. 3 is an enlarged sectional elevation of perforated air pipes as employed in
Figs. 1 and 2.
Fig. 4 is a broken longitudinal elevation of Fig. 3.
Fig. 5 is a plan of pipes provided with slots to draw steam that is created when
the pulp or wet paper comes in contact with the drying cylinder by means of a fan
or exhauster.
Fig. 6 is a side elevation of our invention wherein the perforated or slotted pipes
are substituted by a driven shaft or shafts provided with vanes or wings to cause a
current or currents of air to impinge on the pulp or wet paper immediately it is
delivered onto the drying cylinder to facilitate the drying of the same to allow of
the machine being accelerated to increase the production of paper, and
Fig. 7 is a plan of Fig. 6.
In all the figures the same letters are employed to indicate corresponding parts.
A is the drying cylinder of a paper-making machine; B the standards carrying
pedestals or bearings to support the shaft or centre Con which the cylinder A is
mounted; D the felt employed for carrying the pulp or wet paper to the drying
cylinder A; E the roller for delivering the pulp or wet paper to the drying
cylinder, and F the roller for conveying the felt back to the other end of the
machine. The drying cylinder rotates and the felt travels in the direction indicated
by the arrows.
To the standards B, or other convenient part of the machine, are attached the
cavity-box or chamber G and the supporting plate H, in which are mounted the
perforated or slotted pipes 1. The cavity-box or chamber G is supplied with air
or wind pressure from the fan or blower J by means of the pipes K. The pipes I
are placed in close proximity to the roller employed for delivering the pulp or
wet paper to the drying cylinder A; and the perforations or slots are so disposed
that the blast of air or wind pressure is directed so as to impinge on the pulp or wet
paper immediately it is received by the drying cylinder, and by which the drying
of the same will be considerably increased, thus allowing of the paper machine being
accelerated with a corresponding increase in the production of paper. The fan or
blower is fitted with the pulley L, which can be driven by a strap or belt or other
equivalents from any convenient part of the paper-machine, or from other gearing
convenient or suitable for the purpose. Underneath the pipes I is placed the dish
or receptacle M to collect condensed steam or water as it is formed by the action of
the bias of air or wind pressure on the pulp or wet paper on the drying cylinder.
Condensed steam or water as it is collected in the dish or receptacle M flows to the
lowest point and down the outlet pipe N to the floor or other pipe or drain it may
be coupled with. This invention is equally applicable to what is known as the
"Fourdriner machine with any number of drying cylinders, and can be applied or
employed in combination with one or more of the said cylinders as desired.
Another method we employ for facilitating the drying of the pulp or wet paper
immediately it is delivered onto the drying cylinder A is to exhaust or draw away
the steam as it is created by the said pulp or wet paper coming in contact with the
heated drying cylinder. This we effect by drawing the steam into the slotted
pipes I and away through the pipes K by means of the exhaust fan J. From the
latter the steam is conveyed outside the building or otherwise by means of the
pipe P shown in dotted lines in Fig. 1.
In another modification we dispense with the perforated or slotted pipes I and
the blast fan or exhaust fan J, and substitute therefor the shaft or shafts R mounted
in suitable bearings S secured to the standards B of the machine,

page_text: The shaft or shafts R is provided with the vanes or wings T, which, when rotated,
causes a current or currents of air to he delivered onto the pulp or wet paper
immediately it is delivered on to the drying cylinder A. The shaft or shafts R is
provided with the pulley V to allow of being rotated by means of the strap W
from any convenient part of the machine or other suitable gearing. The shaft or
shafts R can be driven by any other suitable gearing so long as a rotary motion is
effected. We would have it understood that we do not limit ourselves to the
number of pipes, shafts and vanes or wings shown on the drawing as more or less
may be employed according to requirements.
Having now 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 combination with the drying cylinder or cylinders of a paper-making
machine the means for facilitating the drying of pulp or wet paper consisting of a
blast or current of air or wind pressure directed or impinged thereon, or by
exhausting or drawing away steam as it is created or generated by the pulp or wet
paper coming in contact with the heated drying cylinder or cylinders.
2. In combination with the drying cylinder or cylinders of a paper-making
machine the apparatus for directing or impinging a blast or current of air or wind
pressure on the pulp or wet paper consisting of perforated or slotted pipes placed
across the face of the drying cylinder or cylinders and mounted in an air chamber
or chambers and supports, with means for charging or supplying the same with a
blast or current of air or wind pressure from a fan or blower, substantially as
described and illustrated in the drawings.
3. In combination with the drying cylinder or cylinders of a paper-making
machine the apparatus for supplying a current or currents of air or wind pressure
on the pulp or wet paper consisting of a rotating shaft or shafts provided with
vanes or wings, substantially as described and as illustrated in the drawings.
4. In combination with the drying cylinder or cylinders of a paper-making
machine the apparatus for exhausting or drawing away steam as it is created or
generated by the pulp or wet paper coming in contact with the heated drying
cylinder or cylinders consisting of the slotted pipes placed across the face of the
drying cylinder or cylinders and mounted in a chamber or chambers and supports,
with means for drawing the steam with an exhaust fan, substantially as described
and as illustrated in the drawings.
5. In combination with the drying cylinder or cylinders of a paper-making
machine and the perforated or slotted pipes the use of a dish or receptacle for
collecting and conveying away condensed steam or water as it is formed, substan-
tially as described and shown in the drawings.
6. In combination with the drying cylinder or cylinders of a paper-making
machine, the arrangement, use, and construction of the various modifications herein-
before described of apparatus for facilitating the drying of pulp or wet paper,
substantially as described and shown in the drawings.
Dh 1-4 M
1001
EDMUND CHADWICK,
Agent.