A NEW OR IMPROVED ENGINE OR MACHINE FOR THE PURPOSE OF CUTTING HAY AND STRAW INTO CHAFF, AND OTHER USEFUL PURPOSES, FOR THE USE OF CATTLE
Year: 1800

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
LESTER, of Cotton End, in the Parish of Hardingstone, near Northampton,
Farmer and Patent Harrow Manufacturer, send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Fourth Fourth day of February, in the fortieth year of
His reign, give and grant unto me, the said William Lester, His especial
licence that I, the said William Lester, during the term of years therein
mentioned, should and lawfully might make, use, exercise, and wend, within
England, Wales, and the Town of Berwick-upon-Tweed, my Invention of
"A NEW OR IMPROVED ENGINE OR MACHINE FOR THE PURPOSE OF CUTTING HAY AND
STRAW INTO CHAFF, AND OTHER USEFUL PURPOSES, FOR THE USE OF CATTLE;" in
which said Letters Patent there is contained a proviso obliging me, the said
William Lester, by an instrument in writing under my hand and seal, to 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 Majesty's High
Court of Chancery within one calendar month after the date of the said
recited Letters Patent.
NOW KNOW YE, that in compliance with the said proviso. I, the said

page_text: William Lester, do hereby declare that my said Invention is described in the
Drawings and description thereof hereunto annexed.
In witness whereof, I, the said William Lester, have hereunto set my
hand and seal, this Twenty-eighth day of February, in the year of our
Lord One thousand eight hundred.
Aed Drawing of DESTERS I ATENT
ENGINE or Machine for the Purpose of Cutting Hay and Straw into Chaff,
and other useful Purposes, for the Use of Cattle.
Letter A represents the trough or box wherein the yelm of hay or straw is laid.
B, B, B, B, B, the frame of the engine. C, C, the block or press which presses
the yelm while cut. D, a large cylinder of wood which keeps the hay down,
and prevents the moving bottom from sliping under it. E, a small cylinder of
wood, which guides the ends of the hay under the press. Both the cylinders
revolve upon their own centers by the motion of the yelm coming forward.
a, a cylinder of wood as long as the box is wide, the surface of which is
covered with tin, punched full of small holes, to make it rough, or covered
with fish skin, or any other rough elastic body. b, b, b, a piece of sacking or
leather, the wideth of the inside of the box. c, a smaller cylinder, whose
surface is smooth. d, a frame of iron, drawn back by, a nut and screw to
tighten the bottom occasionally. c, a brass, or iron racket wheel, fixed upon
the centre of the cylinder a. ff, a jointed lever. 9,, a spring. h, a rod of
iron, with a male screw at the top and a catch at the bottom, annexed to the
press, by the rising of which the catch .catches. hold of the upper part of the
jointed lever, and raises it; at the same time depresses the lower part from its
centre i, giving motion to the ratchet wheel. k, a female screw, by the turning
of which raises or lowers the rod h, so, as to bring the hay out of the box any
given length required. 1, a male iron screw,, with a concave, end,; to receive
one of the central points of the axis. m, the axis, on which the lever or,
pendulum, and the arms that work the upright motion, are fixed.
THE BACK VIEW.
Letter n, the iron arms that work the upright motion, at the extremity of
each end of which is a small friction wheel o, a bar of iron, or the upright
motion with a joint at p. q, a male screw, with a square head for a rench, to
raise or lower the press for a thick or thin yelm. r, the moving bottom of the
box or trough, either sacking or leather. s, the nut, the turning of which

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ottom occasionally. t, the iron that carries the knife, and
supports it true on its centre, fixed to the lever.
THE FRONT VIEW.
Letter F, the lever. G, the pendulum. H, the knife, with its edge rolling
in a cavity betwixt two bars of steel. I, the end of the yelin under the press.
K, the cavity betwixt the steels. L, the handles by which it is worked. m, a
male screw, with a concave end, to receive the other central point of the axis,
by the turning of which brings the knife too or from the yelm. n, the guiding
steel that guides the knife into the cavity.