HAVING BROUGHT TO PERFECTION A MACHINE OR ENGINE FOR THRESHING AND WINNOWING OF ALL SORTS OF CORN AND GRAIN
Year: 1795

page_text: KNOW ALL MEN BY THESE PRESENTS, that I, JonN JUBB, of
Leeds, in the County of York, Millwright and Mechanic, send greeting.
WHEREAS His, most Excellent Majesty King George the Third, by Letters
Patent under the Great Seal of Great Britain,.bearing dato at Westminster,
the Nineteenth day of February, in the thirty-fifth year of his reign, gave
and granted unto me, the said John Jubb, my executors, administrators, and
assigns, His especial licence, full power, sole priviledge and authority, that I,
the said John Jubb, my executors, administrators, and assigns, and every of
them, by myself, for themselves, or by my.or their deputy or deputies, servants
or agents, or such other's, as I, the said John Jubb, my executors, adminis-
trators, or assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term of years therein expressed,
should & lawfully might make, use, exercise, and vend, within that part of the
Kingdom of Great Britain called England, the Dominion of Wales, and Town
of Berwick-upon-Tweed, my Invention of "HAVING BROUGHT TO PERFECTION A
MACHINE OR ENGINE FOR THRESHING AND WINNOWING OF ALL SORTS OF CORN
AND GRAIN;" in which said Letters Patent is contained a proviso, as or to the
effect following, that is to say, that if I, the said John Jubb, should not par-
ticularly 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 Majesties High Court
of Chancery within one calendar month next and.immediately after the date

page_text: of the said Letters Patent, that then the said Letters Patent, and all liberties
and advantages whatsoever thereby granted, should utterly cease, determine,
and become void, as in and by the said in part recited Letters Patent, relation
being thereunto had, will more fully and at large appear.
NOW KNOW YE, that in compliance with, and agreeable to the true intent
and meaning of the said proviso in the said Letters Patent contained, I, the
said John Jubb, do hereby declare that the nature of the said Invention, and
the manner in which the same is to be performed, is and are described and
ascertained in the manner following (that is to say):-
The machine or engine may be worked by a water mill, horse mill, or any
other kind of mill, and is made and used as herein-after described in the
Drawings or Plans added hereto, and contained in the two skins of parchment
hereunto annexed, respectively marked No. 1 and No. 2; and the skin of
parchment, numbered 1, contains that part of the machine for threshing; and
in that, Fig 1 represents the threshing machine at work, with one side of
the frame taken away to shew the operation. A, a table to lay the corn upon,
which then goes through the two fluted rowlers B, B, and is conducted for-
wards by them to be thrashed by the two beaters or dashers D, D; E, the
cover of the machine; F, a floor, to receive tho corn and convey it to the
outside of the machine; G, a lever, which, being acted upon by a spring EI,
presses the low or feeding roller B to the upper, so that tho two feeding rollers
B, B, hold the corn. fast, whether there be much or little corn going through.
Fig 2 is a view of one side of the machine, with a pair of wheels on the
feeding rollers, both of a number, and two wheels, both of a number of coggs
on the beaters to carry them both a speed.
! !
Fig 3d is a view of the other side of the machine, shewing the two wheels
that convey the motion from the beaters to the feeding rollers;, and Fig 4th
a perspective view of one of the beaters or dashers. This machine may be
put in motion by a wheel or pully, fixed on either of the beaters or dashers
D, D, and they give motion to all the machine, as described above. The
skin of parchment, No. 2, contains that part of the machine for winnowing
corn by.
:
Fig" 5th
represents the machine when made to winnow at the same time it
thrashes. A, the table to spread the corn upon, and the corn goes through tho
two rollers B, B, which not only conducts the corn to the beaters D, D, but
holds the corn fast while the beaters or dashers thrash it, as shown in the skin of
parchment No. 1, and in Figure 1st, and then throws both the corn and straw
upon the trellis E, which lets the corn go through, and the straw is shaken off
another way by a man upon the trellis. The corn is.contracted by a hopper F

page_text: which conducts it to the fan G, which is turned by a strop from two pullys
I, II, from the low beater D, and so is winnowed. I, the corn heap.
In witness whereof, I, the said John Jubb, have hereunto set my hand
and seal, this Sixteenth day of March, in the year of our Lord One
thousand seven hundred and ninety-five.