A BROAD- CAST SOWING MACHINE
Year: 1813

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
TYRRELL, of Piddinghoe, in the County of Sussex, Farmer, 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 Fourth day of De-
cember, in the fifty-fourth year of His reign, give and grant unto me, the
said Samuel Tyrrell, my exors, admors, and assigns, His especial licence, full
power, sole privilege, and authority, that I, the said Samuel Tyrrell, my
exors, admors, 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, my Invention of "A BROAD-
CAST SOWING MACHINE;" in which said Letters Patent there is contained a
proviso, that if I, the said Samuel Tyrrell, 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 two calendar months next and immediately after the date of the said
Letters Patent, that then the said Letters Patent, and all liberties and advan-
tages whatsoever thereby 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
Samuel Tyrrell, do hereby declare that the nature of my said Ivention, and
in what manner the same is to be performed, are particularly described and

page_text: ascertained in and by the Drawings hereunto- annexed, and the following
references or description thereof, that is to say
Fig. 1, a, a, the cog drive wheels; b, the pinion wheel fixed to the roller
by a nut and screw, or any other well known means; c is what I call a lifter,
which, by pulling back into a notch, disengages the pinion wheel from the
cog drive wheel a; d, d, d, d, d, d, the feeders which supply the receivers with
grain or seed from where it is deposited in the troughs or bins above; e, the
regulator and crank, which is made. fast in the shutter of the shaft P for
the purpose of.. keeping the machine level, which is done by-turning the
winch t, in Fig. 2, backward or forward as occasion requires; f, the line
attached to the lift iron for disengaging the pinion wheel from the cog drive
wheel on the opposite or off side of the machine; g, the iron and catch which acts
upon the line f; h, a pulley wheel for conducting the line to the lift iron;
i, iron brackets for supporting the lids when opened; k, k, the chains fastened
to the extremities of the axletree, by which the machine is drawn; 1, 1, 1, 1, 1, 1,
the tubes through which the corn passes to the spreading board m; n, the
spreading board iron'; o, 'the bearing iron which passes through the axletree,
and 'is made fast by means of two screw 'nuts which act contrarywise above
and below the axletree, and serve to raise or lower the machine, by which
different sized pinion wheels are fixed to the rollers. Fig. 2, a, a, two troughs
or bins wherein the grain or seed to be sown is placed. Each of these troughs
ör bins are divided into three equal parts, which are severally rendered by
subdivisions similar in form (in the inside) to the upper part of a hand mill,
the point in which it terminates being in like manner an outlet through
which the grain or seed passes, in the operation of sowing, into appropriate
receivers c, c, c, c, c, c; d, d, d, 'are two rollers introduced at each end of the
machine by passages perforated for that purpose through the several parti-
tions 'q, q, q, q, which form the receivers, the outward end of the rollers
having a pinion wheel b, fastened to each of them; on every part of the
rollers, which lies within a receiver c, six of the scuttles e, e, e, e, e, 'e, or any
other number, more or less, as occasion may require, are fixed in'a circular
direction, as in Fig. 7. 'Under each receiver a tube l, made of metal or other
fit-material, is fixed, for conducting the grain or seed to the spreading boards,
which is also fastened at the bottom of the machine by the iron, Fig. 8;
n, n, the iron; f, f, f, f, f, f, are slides which occasionally close the holes
that supply the feeders; g, g, the cog drive wheel; h, h, the lids of the bins
or troughs; m the lids that cover the scuttles and receivers; o, the bearing
iron; p, the rugulator; r, the lifting iron. Fig. 3, the thimble thro' which
the roller spindle passes to the pinion wheel b, Figs. 1 and 2, and is fixed

page_text: in the head of the machine, from which it projects out to receive the bearing
iron o, upon which it turns by the regulator; c, the spindle hole. Fig. 4,
represents the regulator; a, the winch; b, the crank; c, part of the box that
contains the wheels; d, the worm and crank wheel; e, the collar roller to
keep the crank in its place on the cog wheel; f, the worm. Fig. 5, a, wheat
scuttle; b, the socket and set screw, which is fixed by screws on the roller d,
in Fig. 2, to receive the strig of the different scuttles, as at c. Fig. 6, the
scuttle for sowing unprepared corn. All the parts being thus disposed for
action, the machine is placed on the carriage, which, having a cog wheel
attached to each of its wheels, meet and coinside with the pinion wheels
attached to the rollers. The operation of sowing commences with the first
motion of the carriage, by which the scuttles are successively plunged in the
circumvolutions of the rollers into the receivers and emerging full of their
contents, discharge them, on their descent, on the opposite side into the tubes,
and are thence distributed by the spreading board on the ground. I have not
laid down any scale to my Drawing, as the length of the machine will pro-
bably be determined by the nature and custom of the country in which
it is used.
In witness whereof, I, the said Samuel Tyrrell, have hereunto set my
hand and seal, this Thirty-first day of January, in the year of our
Lord One thousand eight hundred and fourtoon