IMPROVEMENTS IN THE CONSTRUCTION OF COMBINED THRASHING AND DRESSING MACHINES."
Year: 1871

page_text: LETTERS PATENT to James Marshall, of Gainsborough, in the County
of Lincoln, Engineer, for the Invention of "IMPROVEMENTS IN THE
CONSTRUCTION OF COMBINED THRASHING AND DRESSING MACHINES."
PROVISIONAL SPECIFICATION left by the said James Marshall at
the Office of the Commissioners of Patents, with his Petition, on
the 5th August 1871.
I, JAMES MARSHALL, of Gainsborough, in the County of Lincoln,
Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF COMBINED THRASHING AND DRESSING
MACHINES," to be as follows :-
My Invention relates to improvements in the construction of the
frames or casings of combined thrashing and dressing machines, whereby
great strength and rigidity is imparted thereto, increased facility being
also afforded for mounting and supporting the various parts of such
machines. For this purpose I construct the frames or casings of
wrought-iron plates of suitable strength in lieu of wood or angle iron
scantling lined with boards as heretofore practiced.

page_text: The sides and ends of thrashing machine casings are constructed
according to my Invention of the form or shape required by rivetting,
welding, or bolting wrought-iron plates together, such casings being
strengthened by T, angle, channel, or other shaped bars of iron if
desired. The casings thus constructed enclose the working parts of
thrashing machines, and furnish rigid surfaces for the attachment of the
pedestals, bearings, and parts which support and carry the shafts and
other mechanism.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Marshall in the Great Seal Patent Office
on the 3rd February 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
MARSHALL, of Gainsborough, in the County of Lincoln, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of August, in the year of
our Lord One thousand eight hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said James Marshall, Her special licence,
that I, the said James Marshall, my executors, dministrators, and
assigns, or such others as I, the said James Marshall, 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
THE CONSTRUCTION OF COMBINED THRASHING AND DRESSING MACHINES," upon the
condition (amongst others) that I, the said James Marshall, my
executors or administrators, by an instrument in writing under my,
or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, and in what manner
the same was to be performed, and cause the same to be filed in
the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said James Marshall, 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 :-
My Invention relates to improvements in the construction of the
frames or casings of combined thrashing and dressing machines, whereby
great strength is imparted thereto, increased facility being also afforded
for mounting and supporting the various parts of such machines. For
this purpose I construct the frames or casings of wrought-iron plates of
suitable strength, in lieu of wood or angle iron scantling lined with
boards as heretofore practiced.
The sides and ends of thrashing machine casings are constructed
according to my Invention of the form or shape required by rivetting,
welding, or bolting wrought-iron plates together, such casings being
strengthened by T, angle, channel, or other shaped bars of iron if
desired. The casings thus constructed enclose the working parts of
thrashing machines, and furnish rigid surfaces for the attachment of
the pedestals, bearings, and parts which support and carry the shafts and
other mechanism.
And in order that my Invention may be clearly understood, and
readily carried into practice, I will proceed to describe the Drawings
hercunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side view, Figure 2 an end view, and Figure 3 a
transverse section of a combined thrashing and dressing machine, the
frame or casing of which is contructed according to my Invention
entirely with wrought-iron plates rivetted, bolted, or welded together
into the form required for enclosing and supporting the working parts
of such machines.
As I make no claim to the arrangement of the working parts of such
machines it will not be necessary for me to enter into a description
thereof, as the same are well understood and may be greatly varied.
a, a, are plates of wrought-iron of such strength as to form a rigid
framing on each side of the machine, being strengthened by angle iron
at a' as shown if desired. To this framing, other plates b, b, of wrought
iron are rivetted or bolted, so as to fill in the panels or compartments
formed by the frame a in place of employing wood for this purpose.

page_text: The frames may be further strengthened if required with T, angle, or
other shaped bars of iron. The casings thus constructed enclose the
working parts of combined thrashing and dressing machines, and furnish
rigid surfaces for the attachment of the pedestals, bearings, and other
parts which support and carry the shafts and other mechanism of such
machines.
Having thus described the nature of my Invention, and the manner
in which the same is carried into practice, what I claim is, the
construction of the frames or casings of combined thrashing and
dressings machines, of plates of wrought-iron rivetted, bolted, or
welded together into the required shape, and strenthened by T, angle,
channel, or other shaped bars of iron, substantially in the manner
herein described.
In witness whereof, I, the said James Marshall, have hereunto set
my hand and seal, this Second day of February, in the year
of our Lord One thousand eight hundred and seventy-two.
JAMES MARSHALL. (L.S.)