Year: 1887

page_text: Date of Application, 7th June, 1887
Complete Left, 5th Mar., 1888
Complete Accepted, 6th Apr., 1888
I, JOHN WOOD, of 82 Leith Walk, Leith, in the County of Mid Lothian, North
Britain, Engineer, do hereby declare the nature of this Invention to be as follows,
that is to say :-
paper
My said Invention has for its object to improve the construction and action of
making machines and especially to give to the pulp whilst being made into a web a
motion like what is used in making hand-made paper and which will cause the pulp
fibres to settle together in an improved and regular manner; whilst the water is being
drained from them.
In carrying out my Invention 1 employ two "wires" or endless wire cloths, the first
one receiving the fresh pulp at one end and delivering the web at the other end to the
second which carries it through the usual couch rolls.
The first wire passes horizontally over a number of rollers carried by a long
rectangular frame; and in connection with this wire there are the usual pulp feeding
box, water catcher, suction boxes, and deckles. The frame is carried in a manner
admitting of a suitable horizontal motion being imparted to it for the purpose in
view. In one modification the frame is carried by four or more legs made with
hemispherical upper and lower ends, the upper ends fitting in counterpart cavities in
the underside of the frame and the lower ends fitting in counterpart cavities in stools
fixed on a bed. The motion is imparted to the frame by cranks or eccentrics on two
vertical shafts which are driven at a suitable speed, the cranks or eccentrics being
connected to the frame by bearing blocks fixed to the side of the frame. The motion
thus imparted to the frame is a kind of rotation without angular motion every part of
the frame and what it carries moving in a circle of one size. The radius of the circle
of rotation, or the throw of the motion, and also the speed may be varied to suit the
different kinds and qualities of paper.
The rollers at the ends of the frame are larger than the intermediate rollers; and
the roller at the delivery end has placed over it a roller covered with felt or other
suitable material for the purpose of giving some pressure to the web to make it leave

page_text: the first wire freely. The entering end and roller of the second wire is placed at a
suitable distance from the delivery end of the first wire in order that the motion the
web gets from the first wire may not interfere with its going forward on the second
wire in a proper manner. The first and second wires are driven, ordinarily at the same
speed but suitable gearing is by preference introduced to enable the attendant
workman to at any time adjust the relative movements of the wires so as to obtain
slackness in the web between them when required.

page_text: 1, JOHN WOOD, of 82 Leith Walk, Leith, in the County of Mid Lothian, North
Britain, Engineer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement, that is to say :-
paper
My said Invention has for its object to improve the construction and action of
making machines and especially to give to the pulp whilst being made into a web a
motion like what is used in making hand-made paper, and which will cause the pulp
fibres to settle together in an improved and regular manner, whilst the water is being
drained from them.
In carrying out my Invention, according to one modification, I employ two "wires"
or endless wire cloths, the first one receiving the fresh pulp at one end and delivering
the web at the other end to the second which carries it through the usual couch
rolls.
The first wire passes horizontally over a number of rollers carried by an oblong
rectangular frame and in connection with this wire there are the usual pulp
feeding box, water catcher, suction boxes, and deckles. The frame is carried in
a manner admitting of a suitable horizontal motion being imparted to it for the
purpose in view.
On an accompanying sheet of explanatory drawings one modification of my
improved apparatus is shown, figure, 1, being a part plan and figure, 2, a side eleva-
tion. In these drawings the same reference numerals are used to mark the same or
like parts wherever they are repeated. And it is to be understood that such parts of
a complete paper making machine as are not shown in the drawings are to be
constructed or arranged substantially as in any suitable existing machine.
In the apparatus shown in the drawings the first wire, 3, is carried by a rectangular
horizontal frame, 4, which is supported by four (or it might be more) legs, 5, made
with hemispherical upper and lower ends, the upper ends fitting in counterpart cavities
in the under side of the frame, 4, and the lower ends fitting in counterpart cavities in
stools, 6, fixed on the bed frame or floor. The motion is imparted to the frame, 4, by
eccentrics, 7, (or it might be by cranks) on two vertical shafts, 8, which are driven at
a suitable speed, the eccentrics, 7, working in bearing blocks, 9, fixed to the side of
the frame, 4. The vertical shafts, 8, are represented as driven by means of bevil
wheels, 10, from a horizontal shaft, 11, having fast on it a pulley, 12, for a driving
belt. The vertical shafts, S, and the horizontal shaft, 11, are carried in bearings in
standard frames, 13.
The motion imparted by the mechanism, which has been described, to the frame, 4,
is a kind of rotation without angular motion every part of the frame, 4, and what it
carries moving in a circle of one size. The radius of the circle of rotation, or the
throw of the motion, and also the speed may be varied to suit the different kinds and
qualities of paper.

page_text: The wire, 3, in the upper part of its endless course passes over a number of
horizontal rollers, 14, carried by the frame, 4. The lower part of the course of the
wire is as usual under the frame and guided by rollers, 15, which keep it properly
stretched, whilst at the ends the wire passes round larger rollers, 16, 17.
The
roller, 17, at the delivery end has placed over it a roller, 18, covered with felt or other
suitable material for the purpose of giving some pressure to the web to make it leave
the first wire, 3, freely.
The second wire, 19, at its entering end passes round a roller, 20, placed below the
delivery roller, 17, of the first wire, 3; and the second wire, 19, passing in an
inclined direction upwards from the roller, 20, receives the paper web, 21, which
descends from the first wire. There is thus a space or interval between the final
contact of the paper with the first wire, 3, and its first contact with the second
wire, 19; and this prevents the motion of the first wire from interfering with the
forward movement of the paper on the second wire. On the second wire the paper
is carried forward and dealt with in the same way as it is in ordinary machines on the
forward part of the ordinary single wire.
The first and second wires are to be driven ordinarily at the same surface speed;
but suitable gearing may be introduced to enable the attendant workman to at any
time adjust the relative movements of the wires. so as to increase or diminish the
slackness in the portion of the web between them when required.
The first wire can be moved by means of a pulley on the shaft of the delivery
roller, 17, this pulley being driven by a pulley placed directly overhead so that the
motion of the frame, 4, may not interfere with the driving action. The vacuum boxes
may be fixed on the frame, 4, and may be connected by flexible or jointed tubing with
the vacuum pumps. The water catcher may be stationary and in the ordinary
position. Its supporting legs, 22, are shown in figure, 2.
An endless felt may be substituted for the second wire, 19.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what I
claim is :-
In paper making machines imparting a horizontal non-angular rotating motion to
the wire or endless wire cloth which receives the pulp, the said motion being for
the purposes and obtained by mechanism substantially such as are hereinbefore
described.
1
1000
EDMUND HUNT,
Applicant's Agent.