AN IMPROVED CYLINDRICAL GOLD AND SILVER SWEEP AND WASHING MACHINE
Year: 1815

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
DE LARUE, of Leicester Street, Leicester Square, in the City of Westminster,
and County of Middlesex, Artificial Florist, send greeting.
WHEREAS His most Excellent Majesty King George the Third did,
by His Letters Patent under the Great Seal of the United Kingdom
of Great Britain and Ireland, bearing date at Westminster, the Twentieth
day of February, in the fifty-sixth year of His reign, give and grant
unto me, the said Henry De Larue, my exors, adñiors, and assigns, His
especial licence, full power, sole privilege and authority, that I, the said
Henry De Larue, my exors, adiñors, and assigns, should and lawfully might,
during the term of years therein mentioned, make, use, exercise, and vend,
within England, Wales, and the Town of Berwick-upon-Tweed, the Invention
communicated to me by a certain Foreigner residing abroad, of "AN IMPROVED
CYLINDRICAL GOLD AND SILVER SWEEP AND WASHING MACHINE;" in which said
Letters Patent there is contained a proviso that if I, the said Henry De
Larue, shall not particularly describe and ascertain the nature of the 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 there by
granted, shall utterly cease, determine, and become void, as in and by the
same, relation being thereunto had, may more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Henry De Larue, do hereby declare that the nature of my said Invention, and

page_text: in what manner the same is to be performed, are particularly described and
ascertained in and by the Drawings hereunto annexed, and the following
references or description thereof, that is to say:-
A, a cylindrical mill. B, flutings of cast iron, placed all round the inside of
the mill, four of which, C, are in the form of gutters, placed at equal distances,
in order to receive and cast out the mercury. The sides of the flutings, which
are clapped on the wood, are also hollowed, in order to give more lightness to
the work, only they are stopped at the two extremities. They are fixed on the
mill by means of screws. D, screws for voiding or rolling the materials, and
is a cylinder of cast iron E, with flutings F, placed at the same distance as
close to the mill. It serves for bruising the materials. There is in one of the
extremities of the mill an open that serves for introducing the cylinder E, and
is stopped by means of an iron plate with two pins. In the circumference of
the mill, and at one of the extremities, is another opening, of a round form,.
which serves for introducing the materials. This opening is stopped by a piece
of cast metal, which fills the empty space in the interior fluting, intercepted by
the said opening. It is in the same manner stopped by an iron plate with
two pins. G, an axis which traverses the mill horizontally, and serves to put
it in motion. H, the oval tub, which serves to receive the materials from the
two mills which are placed above it. I, pieces of wood, which serve to
support the tub. K, a winch, for raising the mill when it is to be emptied.
L, latching wheels, serving to turn the mills. M, pillar work and piece of
wood, serving as a bed for the mortars. N, mortars. O, pestles. P, a per-
pendicular catching wheel, serving to put the pestles in motion, and traversed
by the horizontal axis. R, other small horizontals, traversed by a perpen-
dicular axis, and receiving their impulses from the centre wheel. S, a piece
of wood, perforated with square holes, through which the axis of the pestles
pass. T, a mortar, in which are inserted three pestles worked by the vertical
hand wheel V, and corresponding with the other mortars N and pestles O, but
is intended principally to be sent out to persons requiring the machine at their
own houses. The other pieces composing the machinery require no explana-
tion, as almost all the component parts of the machine are constructed upon
the same plan, in order to receive their impulses from water, seam, horses,
or weight. These mills are constructed of sufficient lightness to admit of
their being turned by one man only.
In witness whereof, I, the said Henry De Larue, have hereunto set my
hand and seal, this Thirtieth day of May, in the year of our Lord One
thousand eight hundred and sixteen.
HENRY (L.s.) DE LARUE.

page_text: AND BE IT REMEMBERED, that on the Thirtieth day of May, in the year
of our Lord 1816, the aforesaid Henry De Larue came before our said Lord
the King in His Chancery, and acknowledged the Specification aforesaid, and
all and every thing therein contained and specified, in form above written.
And also the Specification aforesaid was stamped according to the tenor of the
Statutes made for that purpose.
Inrolled the First day of June, in the year of our Lord One thousand
eight hundred and sixteen.