CERTAIN IMPROVE- MENTS IN HULLING, CLEANSING, OR POLISHING RICE, BEARDING OR PEELING BARLEY, AND HULLING OR CLEANSING COFFEE
Year: 1834

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN CHESTER
LYMAN, of Golden Square, in the County of Middlesex, Gentleman, send
greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Twenty-fourth day of June, in the fourth year of
His reign, did, for Himself, His heirs and successors, give and grant unto
me, the said John Chester Lyman, His especial license, full power, sole
privilege and authority, that I, the said John Chester Lyman, my exors, admňors,
and assigns, or such others as I, the said John Chester Lyman, my exors,
admiors, or assigns, should at any time agree with, and no others, from time
to time and at all times during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVE-
MENTS IN HULLING, CLEANSING, OR POLISHING RICE, BEARDING OR PEELING BARLEY,
AND HULLING OR CLEANSING COFFEE;" in which said Letters Patent is contained
a proviso that I, the said John Chester Lyman, shall cause a particular
description of the nature of my said Invention, and in what manner the
same is to be performed, to be inrolled in His said Majesty's High Court
of Chancery within six calendar months next and immediately after the date
of the said in part recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
John Chester Lyman, do hereby declare that the nature of the Invention is
fully described and ascertained as follows:-

page_text: The rough rice or paddy is first to be sifted or screened, to separate from it
any dirt or other extraneous matter, and is then to be operated upon in
the usual manner of shelling grain by a pair of suitable millstones, for the
purpose of detaching the outer hull or husk, then by means of a wind-fan for
separating the chaff from the grain. Having thus prepared the rice, it is
now to undergo the operation of the new machinery represented in the
Drawing. The Invention consists of two flat or millstone-shaped circular
discs (from five to six feet will be found a convenient diameter) termed
"polishers" when in operation, the one above the other, in the manner of
grinding stones in a grist inill, the upper disc performing advantageously when
making from eighty to one hundred and twenty revolutions per minute, secured
to or resting upon a vertical shaft or spindle, so as to ensure a steady un-
varying motion, whilst the lower disk is firmly supported in a horizontal
position upon a frame or platform. These discs may be made altogether of
wood, but more neatly with cast-iron skeletons or frames faced on one side
with wood, the surfaces of which are made smooth, and placed level and
parrallel with each other when at work. The upper surface of the lower disc,
and the lower surface of the upper disc, is covered with strong card teeth of
metallic wire firmly set in leather or other strong elastic substance. The card
teeth should be of equal lengths, and rising above the leather, from half an
inch to one inch (is found a convenient size), so that after the card work has been
properly fastened (by nails or otherwise) to the wood facing the extremities of
the wire may exhibit a plane of points, with this only exception, that a slight
and gradually diminishing convexity extends from sixteen to eighteen inches
around the eye or central opening of the upper disk to admit the grain with
greater freedom between the discs. When adjusted for operation the grain
is conveyed from a hopper by means of a shoot, that also regulates the
quantity of grain to be admitted between the metallic surfaces of the disks. A
circular case or curb, from eight to ten inches high, encloses the two disks to
prevent a dispersion of the grain as it escapes from their peripheries, and to
lead it to a spout. The grain thus operated upon is passed through sieves
or screens to separate from it the meal and broken grains, from thence through
a brushing cylinder into barrels or other packages, and is fit for use. The
form of the polishers may be varied by substituting for the bed or lower disk
as bere described a vertical cone, with a corresponding runner revolving in a
horizontal direction, the grain being supplied at the apex, passing between the
surfaces, which are covered with metallic points in the same manner as above
described.
It will be readily understood from the above description, that, although I

page_text: have only spoken of paddy or rough rice, that the polisher will be applicable
to the bearding or peeling barley, and hulling and cleansing coffee. It will be
evident that the object in this arrangement is to apply friction to the grain
by means of metallic points as above described. In this particular appli-
cation consists the merit of the Invention. Some of the machinery and parts
of the process connected with this Invention has long been known to the
public, and I distinctly disclaim an exclusive right to the use of every part
thereof, with the exception of the parts termed "the polishers."
EXPLANATION OF THE DRAWING.
Figure 1 an elevation of mill constructed according to the Invention.
Figure 2 a plan of the same, exhibiting details. In each Figure the same
letters of reference indicate similar parts. a, the upper or revolving disk.
b, c, iron skeleton or frame. d, e, wood facing on ditto. ff. eye or central
opening in upper disk to admit the grain. 9, spindle (in this instance keyed
to upper disk). h, foot bearing to vertical shaft. i, bridge tree. j, j, screws
to raise or lower bridge tree. k, pinion on spindle. 1, driving wheel. m, the
lower disk, having a brass or metal ring in its centre, by which the upper
part of the vertical spindle is kept steady. n, hopper for grain. o, shoot.
P, P, studs to shake the hopper n. 9, circular curb or case, of three inches
greater diameter than dises.
In witness whereof, I, the said John Chester Lyman, have hereunto set
my hand and seal, this Twenty-third day of December, in the year
of our Lord One thousand eight hundred and thirty-four.
AND BE IT REMEMBERED, that on the Twenty-third day of December,
in the year of our Lord 1834, the aforesaid John Chester Lyman 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 Statute made for that purpose.
Inrolled the Twenty-fourth day of December, in the year of our Lord
One thousand eight hundred and thirty-four.