A New or Improved Machine for Preparing or Finishing Wood Pulp and other Vegetable Fibres for Making Paper.
Year: 1888

page_text: Date of Application, 5th Nov., 1888
Complete Specification Left, 1st Aug., 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
A New or Improved Machine for Preparing or Finishing Wood Pulp
and other Vegetable Fibres for Making Paper.
I JOHN HUTCHINSON SHORROCK of 9 Trinity Terrace, Darwen in the County of
Lancaster, Engineer and Ironfounder, do hereby declare the nature of my said invention
to be as follows:-
This invention relates to a new or improved machine for preparing or finishing
wood pulp and other vegetable fibres employed in the manufacture of paper, and is
designed to break or tear them into small pieces from their dry or semi-dry cake like
or other state to the liquid or pasty state necessary for mixing with the substance in
the rag engine or other machine preparing the pulp ready for the paper machine.
On a cylindrical vessel I mount a hopper with serrated, toothed, or other rollers, to
tear or break up the paper pulp or other vegetable substances as they are fed into the
machine. As the pulp or other substance passes between the rollers it drops into the
cylindrical vessel, and is pushed forward by a screw formed on the centre shaft into
contact with screw blades or knives mounted on the said shaft. The screw blades or
knives revolve in spaces formed by removable plates, secured to the inside of the
cylindrical vessel in any convenient manner. The spaces and the screw blades or
knives are reduced in width towards the outlet end of the machine, to ensure of the
substance under operation being gradually broken up into small particles or pieces
during the operation of travelling from one blade or knife to another. The screw
blades or knives are mounted on the centre shaft in any convenient manner, with
means for locking the same in position. To ensure the substance under operation
being thoroughly broken up the inside of the cylindrical vessel is serrated, or provided
with angular pieces or projections with knife edge points. The cylindrical vessel is
made in halves to allow of the upper part being removed when necessary, and is
secured in any convenient manner. If necessary the machine can be supplied with
water or liquid by taps or their equivalents. The substance after it has passed the length
of the cylindrical vessel falls through an opening or shoot, from whence it can be
removed as desired. The centre shaft and the rollers in the hopper are mounted in
suitable bearings, and are driven by spur or other gear.
Dated the 3rd November 1888.
EDMUND CHADWICK,
Agent
COMPLETE SPECIFICATION.
A New or Improved Machinefor Preparing or Finishing Wood Pulp
and other Vegetable Fibres for Making Paper.
I, JOHN HUTCHINSON SHORROCK of 9 Trinity Terrace, Darwen in the County of
Lancaster, Engineer and Ironfounder, do hereby declare the nature of my said
invention and in what manner the same is to be performed, to be particulary described
and ascertained in and by the following statement
This invention relates to a new or improved machine for preparing or finishing
wood pulp and other vegetable fibres employed in the manufacture of paper, and is
designed to break or tear them into small pieces from their dry or semi-dry cake like
or other state to the liquid or pasty state necessary for mixing with the substance in
the rag engine or other machine preparing the pulp ready for the paper machine.
On a cylindrical vessel 1 mount a hopper with serrated, toothed, or other rollers, to

page_text: tear or break up the paper pulp or other vegetablo substances as they are fed into the
machine. As the pulp or other substance passes between the rollers it drops into the
cylindrical vessel, and is pushed forward by a scrow formed on the centre shaft into
contact with screw blades or knifes mounted on the said shaft. The screw blades or
knives revolve in spaces formed by removable plates, secured to the inside of the
cylindrical vessel in any convenient manner. The spaces and the screw blades or
knives are reduced in width towards the outlet end of the machine, to ensure of the
substance under operation being gradually broken up into small particles or pieces
during the operation of travelling from one blade or knife to another. The screw
blades or knives are mounted on the centre shaft in any convenient manner, with
means for locking the same in position. To ensure the substance under operation being
thoroughly broken up the inside of the cylindrical vessel is sorrated, or provided with
angular pieces or projections with knife edge points. The cylindrical vessel is made
in halves to allow of the upper part being removed when necessary, and is secured in
any convenient manner. If necessary the machine can be supplied with water or
liquid by taps or their equivalents. The substance after it has passed the length of the
cylindrical vessel falls through an opening or shoot, from whence it can be removed as
desired. The centre shaft and the rollers in the hopper are mounted in suitable
bearings, and are driven by spur or other gear.
Fig. 1 is a longitudinal side elevation of my new or improved machine for prepar-
ing or finishing wood pulp or other vegetable fibres employed in the manufacture of
paper Fig. 2 is a plan of same with top half of cylinder or cover removed-Fig. 3 is
a sectional elevation through line A' B₁ in Fig. 1-Fig. 4 is an end view of the
delivery end of the machine-and Fig. 5 is a section through line C¹ D¹ in Figs. 1
and 2.
The
A is a cylidrical vessel made in halves, and provided internally with the serrated or
angular pieces or projections B in the form of a screw froin end to end. The
upper half of the cylinder A is hinged to the bottom part by the ears C and pins D.
Each end N of the cylinder A is provided with the bearings E and bosses E', in which
is mounted the shaft F, driven by the pulley M from any convenient source.
ends N are secured to the cylinder A by the bolts O. On the shaft Fare mounted the
screw G and the screw blades or knives H: the latter by the movement of the shaft F
rotate in the spaces 1 formed by the loose plates J: these plates are provided with the
taper ends J which fit into spaces or recesses in the cylinder A formed to receive
them. The spaces I and the screw blades or knives H are reduced in width towards
the outlet end of the machine to ensure of the substance under operation being
gradually broken up into small particles or pieces during the operation of
travelling from one blade or knife to another. The screw blades or knives H are
mounted on the shaft F in any convenient manner, and secured by the nut F¹. K is
an opening or shoot through which the substanco passos from the machine. The top
side of the upper half of the cylinder A is fitted with the hopper P provided with the
serrated, toothed or other rollers R mounted on the shafts. S disposed in adjustable
bearings operated by the screws T. The shafts S are driven by the spur wheels V
from the shaft F. W is a tap to supply liquid to the machine when necessary.
This machine operates in the following manner :-Wood pulp or other vegetable
substanco employed in the manufacture of paper is placed in the hopper P in a dry,
semi-dry, or other state and passes between the rollers R, which breaks or tears it into
sinal pieces, from whence it drops through the opening Y into the cylindrical vessel A,
and is pushed forward by the screw G on the shaft F into contact with the screw
blades or knives H. The pulp or other substance is then operated upon by the screw
blades or knives H in the spaces 1, and by the form of the blades or knives H and the
screw projections B is traversed to the opposite end, being gradually broken up into
small particles or pieces by the reduced width of the spaces I and the blades or knives H
in the tail end of the machine. When the pulp enters the last space it is pushed
through the opening or shoot K to the outside, from whence it can be removed as
desired.

page_text: Having thus stated the nature of my invention and described the mode of operation,
I would have it understood that I do not confine myself to the precise details or con-
figuration of the parts I have shown and described as the same may be varied or
modified without departing from the principle of my invention, but what I claim and
desire to be secured to me by Letters patent is :-
1. The construction, combination, and arrangement of parts forming my new or
improved machine for preparing or finishing wood pulp or other vegetable substances
employed in the manufacture of paper, applied and operating substantially as described
and as shown on the drawings.
2. In combination with the screw blades or knives H the use of the plates J for the
purpose specified.
3. In combination with the screw blades or knives H and the plates J the use of the
angular projections B in the form of a screw substantially as described for the purpose
specified.
n
T
1
EDMUND CHADWICK,
Agent.