IMPROVE- MENTS IN PORTABLE THRASHING MACHINES
Year: 1854

page_text: LETTERS PATENT to Richard Hornsby, of Spittlegate Iron Works,
Grantham, in the County of Lincoln, for the Invention of "IMPROVE-
MENTS IN PORTABLE THRASHING MACHINES."
"
PROVISIONAL SPECIFICATION left by the said Richard Hornsby at the
Office of the Commissioners of Patents, with his Petition, on the 16th
Juno 1854.
I, RICHARD HORNSBY, of Spittlegate Iron Works, Grantham, in the County
of Lincoln, do hereby declare the nature of the Invention for "IMPROVEMENTS
IN PORTABLE THRASHING MACHINES" to be as follows:-
This Invention consists of suspending the ends of the shaker or shakers
nearest the thrashing parts of the machine on links, and giving a rising and
falling motion to the back ends of the shakers by means of a crank axle or
otherwise, by which the principal shaking is towards the back end of the shaker
or shakers; and also in applying moveable riddles or screens at the back
end of a thrashing machine beyond the dressing machinery, in such manner
that the pulse and matters blown from the dressing machinery may be driven
against a perforated surface, which admits of the passage of air through it,
but not the pulse and matters, which latter fall on a riddle below, and thus are
the chaff and pulse separated. By this arrangement these parts are rendered
separate from and are driven independently of the dressing machinery, and may
be removed when they are not desired to be used.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Hornsby in the Great Seal Patent Office on the
15th December 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
HORNSBY, of Spittlegate Iron Works, Grantham, in the County of Lincoln,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of June, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Richard Hornsby, Her special licence that I, the said Richard Hornsby,
my executors, administrators, and assigns, or such others as I, the said
Richard Hornsby, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make, use,
exercise, and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
PORTABLE THRASHING MACHINES," upon the condition (amongst others) that I, the
said Richard Hornsby, by an instrument in writing under my hand and seal,
should particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the samo to bo
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Richard Hornsby, do hereby declare the
nature of the said Invention, and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement
thereof (that is to say) :-
This Invention consists of suspending the ends of the shaker or shakers
nearest the thrashing parts of the machine in links, and giving a rising and
falling motion to the back ends of the shakers by means of a crank axle or
otherwise, by which the principal shaking is towards the back end of the
shaker or shakers; and also in applying moveable riddles or screens at the
back end of a thrashing machine, beyond the dressing machinery, in such
manner that the pulse and matters blown from the dressing machinery may be
driven against a perforated surface, which admits of the passage of air through s
it, but not the pulse and matters, which latter fall on a riddle below, and thus
are the chaff and pulse separated. By this arrangement, these parts are ren-

page_text: dered separate from and are driven independently of the dressing machinery,
and may be removed when they are not desired to be used.
Having thus stated the nature of my said Invention, I will proceed to
describe the manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a longitudinal section, and Figure 2, a transverse section,
of so much of a thrashing machine as will enable me to describe the nature
and manner of working of my improvements. a, a, is the shaker, which in
the arrangement shown consists of five frames of bars, but this may be varied;
and these frames of bars are such as have before been employed, and the first
part of my Invention simply consists, as above stated, of improvements in
suspending and working shakers. The two outer and the central frames a, a,
are connected by the cross bar 6', and the other two frames a, a, are connected
together by the bar 62, at their under sides, and they receive motion by means
of the three-throw crank axis c, the cranks of which are connected by
brackets (fixed to the bars 61 and 62) to the frames a, and in this manner
will part of the frames a, of which the shaker is composed, be moving
up, whilst the other parts of the frames a are moving down. I would,
however, remark, that although I prefer to use cranks for this purpose,
other means of moving the parts of the shaker up and down at the back end
thereof may be resorted to; the fore ends of the parts of the shaker a, a,
are supported by and swing on links. For this purpose, the two parts a are
connected to the bar or axis c*, and the three parts a, which are connected
together at the back end, are also connected to the bar or axis d; and
the bars or axes c, d, are each carried by links at their ends, which swing on
axes f, g, on either side of the machine. By these means the principal rising
and falling of the parts of a shaker will be at the back or delivery ends, whilst
the front ends will comparatively have little up and down motion. The other
parts of the Drawing show the position of the principal axes and parts of the
thrashing machine, which, being of an ordinary construction, and forming
no part of my present Invention, will not require any description in this my
Specification.
The other part of my Invention relates to the arrangement or combi-
nation of separating machinery when made independent of the thrashing
and dressing machinery, and attached in position at the back end of the
machine when the thrashing machine is in use; and the improvement con-
sists in combining with such a separator an inclined perforated surface h, h, by
which, when the pulse and matters are driven against such surface h, h, the

page_text: air will pass through, and the pulse and matters will fall on to the inclined
riddle i, which swings on links j, j, at one end, and is supported by links
k. k, at the other end, the riddle receiving its motion by the connecting rod 1.
The separating apparatus is attached to the back end of the thrashing machine,
as is shown.
Having thus described the nature of my Invention, and the manner of per-
forming the same, I would have it understood that I make no claim to any of
the mechanical parts separately, and the details may be varied without
departing from the peculiarity of my improvements; but what I claim is, the
mode herein described of giving motion to the parts of the shaker of a
thrashing machine; and, secondly, I claim the arrangement or combination of
parts of a detached separator of a thrashing machine, herein described.
In witness whereof, I, the said Richard Hornsby, have hereunto set my
hand and seal, this Thirteenth day of December, in the year of our
Lord One thousand eight hundred and fifty-four.
RICHARD HORNSBY. (L.S.)
Witness,
RICHARD HORNSBY, jun".