AN IMPROVEMENT IN PREPARING THE MATERIALS FOR MAKING POTTERY WARE, TILES, AND BRICKS
Year: 1820

page_text: .
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HAGUE, of Great Pearl Street, Spitalfields, in the County of Middlesex,
Engineer, send greeting.
WHEREAS His most Excellent Majesty King George the Fourth did,
by Ilis Letters Patent under the Great Seal of that part of the United
Kingdom of Great Britain and Ireland called. England, bearing. date at
Westminster, the Second day of June, in the first year of His reign, give
and grant unto me, the said John Hague, my exors, admors, and assigns,
His especial licence, full power, sole privilege and authority, that I, the said
John Hague, my exors, admors, and assigns, during the term of years therein
mentioned, should and lawfully might make, use, exercise, and vend, within
England, Wales, and the Town of Berwick-upon-Tweed, my Invention of ". AN
IMPROVEMENT IN PREPARING THE MATERIALS FOR MAKING POTTERY WARE, TILES,
AND BRICKS;" in which said Letters Patent there is contained a proviso, that if
I, the said John Hague, shall not particularly describe and ascertain the nature
of my said Invention, and in what manner the same is to be performed, by
an instrument in writing under my hand and seal, and cause the same to be
inrolled in His Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said Letters Patent, that then the
said Letters Patent, and all liberties and advantages whatsoever thereby.
granted, shall utterly cease, determine, and become void, as in and by the
same, relation being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
John Hague, do hereby declare that the nature of my said Invention, and
the manner in which the same is to be performed, are particularly described
and ascertained in and by, the Drawings hereunto annexed, and the following
description thereof (that is to say):-
My preparation of the materials consists in separating from it the stones,
roots, and other extraneous matter or substances that it may contain. This I
effect by forcing the materials through holes or slits of a form and size
calculated for the passing through of the materials, and at the same time for
the detention of the stones, roots, and other extraneous matter or substances.
A, A, A, A, in Figure 1 of the annexed Drawings, represent one side of the
box of a square machine for the purpose, with slits for the materials to be
forced through; B, the foundation plate; C, a piston; D, a rack attached to
the piston C; E, a cogged wheel working into the rack D; F, a shaft on
which the cogged wheel E is fixed; G, a shaft leading off to a steam engine,
horse wheel or other moving power. H, H,,the two parts of a clutch box,
one part of which is fixed on the shaft F, and the other sides to and fro on the
end of the shaft G. IJ, an angular lever for uniting and disjoining, the two
parts of the clutch box H, H. KK; K'a carriage for carrying the shaft F
and the spindle of a roller, which works against the back of the rack D. L,
a carriage for supporting the angular lever. I; J:
The operation is thus performed: A proper quantity of materials: con-
taining matter or substances to be extracted froni it is put into the box
AAAA. The shaft G being then put in motión by. some sufficient moving
power, and the two parts of tlie clutch box II, H, being, united, the rack D,
with the piston Cattached to it, is worked.downwards by the cogged wheel E.
The piston C is thus caused to press on the:matter in the box, by which means.
the separated materials are forced through the slips or holes, and the stones,
roots, and other extraneous matter or substances that it contained remain. in
the box. As often as-may be necessary .the door M is, opened and the stones,
roots, and other extraneous matter or substances that have been separated
from the materials are withdrawn from the box: A strong pin is fixed in the
back of the rack D in such a situation: that as the piston C approaches the
bottom of the box, this pin may bear on the angular lever I, J, and thereby
completely effect the disjointing of the two parts of the, clutch box at the
moment that the piston--reaches the point of its greatest descension. By a
reverse motion, or some other proper contrivance, the rack and piston are then
raised out out of the box, the box is recharged; the. two parts of the clutch box
are united by pulling a line fastened to the end I of the angular lever I, J, a

page_text: pulley being fixed above it, over which the line runs, and the operation recom-
mences and proceeds again as before described. The bottom side of the
piston C is formed pyramidical inversely, which gives it a greater tendency to
operate laterally upon the matter in the box that it would have if its face
were a horizontal plane. To the sides of the piston C are fixed metallic
springs N, N, which press against the inner faces of the sides of the box, and
prevent any of the materials from passing between the sides of the box and
the piston.
Figure 2 represents one side of a machine with holes for the materials to be
forced through. It will be seen that with respect to the shafts, rack, and some
other parts, this shews a side of the machine which is at right angles with the
side shewn in Figure 1. A, A, A, A, one side of the box; B, the foundation
plate; C, the rack; D, the cogged wheel which works into the rack; E, its
shaft; F, a friction wheel against which the back of the rack runs; G, its
spindle; II, II, the carriage for carrying the shaft of the cogged wheel D and
the spindle of the friction wheel F; I, the door for withdrawing the stones,
roots, and other extraneous matter or substances that have been separated
from the materials.
Figure 3 represents a horizontal section of the box. Bricks and tiles may
be formed by having holes at the bottom of this machine the size of the end
of the brick or tile, and cut off with wire as it comes out of the holes.
In witness whereof, I, the said John Hague, have hereunto set my hand
and seal, this First day of December, in the year of our Lord One
AL