An AUTOMATIC PULP SAVE-ALL
Year: 1872

page_text: LETTERS PÅTENT to William Wykes Ladelle, of Wraysbury, in the
County of Buckingham, Paper Maker, for the Invention of "An
AUTOMATIC PULP SAVE-ALL."
Sealed the 17th October 1872, and dated the 22nd April 1872.
PROVISIONAL SPECIFICATION left by the said William Wykes Ladelle
at the Office of the Commissioners of Patents, with his Petition,
on the 22nd April 1872.
I, WILLIAM WYKES LADELLE, of Wraysbury, in the County of
Buckingham, Paper Maker, do hereby declare the nature of the said
Invention for "AN AUTOMATIC PULP SAVE-ALL," to be as follows:-
I construct a drum of two discs hung on a spindle through their
centre and connected at their circumference by fine woven wire gauze.
In the interior of this drum I place buckets forming a water wheel, and
I feed these buckets through an opening at the side of each with the
waste water (containing waste pulp or fibre) to be-operated upon: The
weight of the water causing the bucket to descend and the drum to
revolve on its spindle, the water is discharged from the bucket on to the

page_text: inner surface of and strained through the wire gauze, the fibre (or the
greater portion thercof) contained in the water being retained on the
inner side of the gauze. The buckets are placed so as to leave a small
spaco between their outer edge and the inner surface of the gauze. As
the drum revolves the fibro accumulating on the inner surface of the
gauze is caught and carried upwards by the reversed bottom of the
bucket, whence it drops on to a stationary cradle of semicircular form
fitted to the interior lower half of the drum between the centre of the
drum and the buckets. The centre of the disc forming one side of tho
drum is cut away (the spindle being fixed to the centre of the disc
forming the other side, and a screw fixed to the spindle fills up (as
closely as possible without touching the cradle) the space between the
cradle and the centre of the drum. As the collected fibre accumulates
in the cradle it is forced forwards by the revolution of the screw &
ejected from the cradle into a box placed bencath for its reception.
The speed at which the machine revolves is controlled and regulated
by a brake applied to the spindle or to the drum.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Wykes Ladello in the Great Scal Patent
Office on the 21st October 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
WYKES LADELLE, of Wraysbury, in the County of Buckingham, Paper
Maker, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of April, in the
year of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did for Herself, Her heirs and successors,
give and grant unto me, the said William Wykes Ladelle, Her special
licence, that I, the said William Wykes Ladelle, my executors, ad-
ministrators, and assigns, or such others as I, the said William Wykes ;
Ladelle, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might
make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
2

page_text: for "AN AUTOMATIC PULP SAVE-ALL," upon the condition (amongst others)
that I, the said William Wykes Ladelle, my executors or adminis-
trators, by an instrument in writing under my, or their, or one of their
hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months, next and immediately after the date of
the said Letters Patent.
.
NOW KNOW YẸ, that I, the said William Wykes Ladelle, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement :-
I construct a drum of two dises hung on a spindle through their
centre, and connected at their circumference by fine woven wire gauze.
In the interior of this drum I place buckets forming a water wheel,
and I feed these buckets through an opening at the side of each with
the waste water (containing waste pulp or fibre) to be operated upon.
The weight of the water causing the bucket to descend and the drum to.
revolve on its spindle the water is discharged from the bucket on to the
inner surface of and strained through the wire gauze, the fibre (or the
greater portion thereof) contained in the water being retained on the
inner side of the gauze. The buckets are placed so as to leave a small
space between their outer edge and the inner surface of the gauze. As
the drum revolves the fibre accumulating on the inner surface of the
gauze at the lowest part of the drum is caught and carried upwards by
the reversed bottom of the bucket, whence it drops on to a stationary
cradle of semicircular form fitted to the interior lower half of the drum
between the centre of the drum and the buckets. The centre of the
disc forming one side of the drum is cut away (the spindle being fixed
to the centre of the disc forming the other side) and a screw fixed to
the spindle fills (as closely as possible without touching the cradle) the
space between the cradle and the centre of the drum. As the collected
fibre accumulates on the cradle it is forced forwards by the revolution
of the screw and ejected from the cradle. into a box placed beneath for
its reception. The speed at which the machine revolves is controlled
and regulated by a brake applied to the spindle or to the drum.
Fig. 1 in the Drawing annexed hereto is a sectional clevation 01
view of the front of the machine; Fig. 2 is a similar view of the

page_text: end, and Fig. 3 of the back; Fig. 4 is a horizontal sectional view.
The same letters refer to the same parts of the machine in all the
Figures.
A is a disc firmly mounted on a spindle B. The bearings of the
spindle are supported at the back by the edge of the outer case G, and
at the front by an iron bar (or similar support) M, Fig. 4. c, d, e, f,
Fig. 1 is one of eight buckets fixed on the front of the disc A, and the
bottom of which is prolonged to 9. The space g, f, is covered in to
prevent the lodging of pulp in the angle g, e,f; h is a hole cut through
the side of the bucket and the disc. The front side of the bucket is
closed by another disc C, which is cut away so as to leave open tho
space between the buckets and the spindle. A covering of wire gauze
is stretched round and connects the circumferences of A and O. k, l, m,
Fig. 3 is one of eight buckets fixed on the back of the disc A, by which
the water is conveyed to the front buckets before described through
the hole h. These back buckets receive the waste water from a shoot
or pipe D and their sides are placed at an acute angle with the disc for
the more rapid carrying away of the water. (It is endeavoured to shew
this in the Drawing by dotted lines tracing the intersection of the lines
mand in Fig. -3, with the lines A and E respectively in Fig. 2.)
F is a semicircular cradle fixed to the outer box G. The box G is cut
away so as to leave open the front end of the cradle; I is a screw fixed
to the spindle B and fitting the interior of the cradle as nearly as
possible without actually touching it. K, K', are a wheel fixed to the
spindle B and a lever pressed upon it by the weight W, forming
together a brake, the power of which may be regulated by altering the
position of the weight W on the bar Ķ'.
Fig. 5 shows the best construction of the shoot D.
and a hole ' (of about the same area as the hole
out in the bottom of the shoot.
The end is closed
in the disc A) is
In action the water is supplied to the
shoot D, drops through the hole on to the feeding buckets at the back
of A, and passes through the holes into the buckets at the front of A.
Its weight causes the machine to revolve (the speed of the revolution
being controlled by the brake as above described), and as each bucket
descends the water is discharged on to the inner surface of the wire
gauze covering. The bucket is completely emptied at about the point ",
Fig, 1, and the water runs through the wire gauze, the pulp remaining
inside. The pulp thus retained accumulates and rolls up at or near tho

page_text: bottom of the drum until it fills up the space between the wire and the
extremity g of the bucket, when it is caught and carried up by the
bucket to about the point o, when it drops on to the cradle F.
By the
revolution of the screw H the pulp is then forced forward along the
cradle and falls into the box 1 placed bencath for its reception. The
box L should be made with perforated sides and bottom and lined with
wire gauze.
For the wire gauze I find it convenient to uso old paper machine wire,
which answers the purpose well.
The machine here described is constructed to turn in the direction of
the arrows in Figs. 1 and 3. It may equally well bo constructed to
turn in the contrary direction, all the parts being reversed accordingly.
The screw must be left-handed if the motion be as in the Drawing, and
right-handed if the motion be reversed.
The discs and buckets may be constructed either of sheet metal (in
which case a ring of wood may be fastened to the edge of the discs for
nailing on the wire gauze) or of wood. The cradle may be either sheet
metal or a metal frame covered with wire gauze. The outer box G may
be of wood or metal, and must be provided with an outlet for the waste
water at any convenient part of the bottom. The screw may be made of
sheet metal fixed in a wooden boss. I do not however limit the use of
any material, but merely indicate those I consider most convenient.
In witness whereof, I, the said William Wykes Ladelle, have
hereunto set my hand & seal, this Twenty-first day of October,
in the year of our Lord One thousand eight hundred and seventy-
tun