IMPROVEMENTS IN THRASHING MACHINES to be as follows:
Year: 1885

page_text: I, JAMES MARSHALL of the firm of Marshall Sons & Co Limited of Britannia
Iron Works Gainsborough in the County of Lincoln Engineers do hereby declare
the nature of said Invention for "IMPROVEMENTS IN THRASHING MACHINES to be
as follows:
"
The object of my Invention is so to arrange or construct the bottom shoe or hopper
of thrashing machines as to increase the dressing and cleaning capabilities in
accordance with the increased output at present required from thrashing machines
For this purpose I, according to my Invention, employ two chaff riddles between
the caving riddle above and the caping riddle (i.c. the riddle above the seed riddle)
below, an inclined board being arranged between the two riddles for conducting
the grain from one chaff riddle to the other chaff riddle and a wind guard being
fixed at the wind mouth or outlet from the blower to divide the blast into separato
currents one passing through each of the chaff riddles. The caping riddle which
is under the second chaff riddle has openings through it of a size to admit only of
grain and seeds passing therethrough. Underneath the caping riddle is a seed
riddle for separating seeds from the grain. In a hopper or shoe arranged as herein-
before described the grain after it leaves the inclined board between the chaff
riddles falls on to the lower chaff riddle and chaff or other light matter is blown
out from amongst the grain in addition to that which was blown out at the upper
chaff riddle, and after the grain has passed from the lower chaff riddle it is still
further dressed as the grain and seeds pass through the caping riddle on to the
seed riddle the seeds being by this riddle separated from the grain which latter
passes to the elevator spout. Any poppy heads, thistle heads or other large
matters which are too heavy for the blast to carry off, being enable to pass
through the holes of the caping riddle drop sideways out of the machine and
are thus separated from the grain.
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C.,
Agent for the said James Marshall.

page_text: I JAMES MARSHALL of the firm of Marshall Sons and Company Limited of
Britannia Iron Works Gainsborough in the County of Lincoln Engineers do hereby
declare the nature of my invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:
The object of my Invention is to so arrange or construct the bottom shoe or
hopper of thrashing machines as to increase the dressing and cleaning capabilities
in accordance with the increased output at present required from thrashing
machines.
I will describe my Invention with reference to the accompanying drawing which
is a diagrammatic longitudinal section of so much of a thrashing machine as is
necessary to illustrate my Invention.
According to my Invention I employ two chaff riddles a¹ and a between the
caving riddle b above and the caping riddle c (i.e. the riddle above the seed riddle)
below, an inclined board (d) being arranged between the two riddles a¹ and a²
for conducting the grain from one chaff riddle a¹ to the other chaff riddle a² and a
wind guard e being fixed at the wind mouth or outlet from the blower to divide
the blast into separate currents, one passing through each of the chaff riddles a
and a. The caping riddle c which is under the second chaff riddle a² has openings
through it of a size to admit only of grain and seeds passing there-through.
Underneath the caping riddle c is a seed riddle f for separating seeds from the
grain. In a hopper or shoe arranged as herein before described the grain after it
leaves the inclined board d, between the chaff riddles a¹ and a² falls on to the
lower chaff riddle a² and chaff or other light matter is blown out from amongst
the grain in addition to that which was blown out at the upper chaff riddle a and
after the grain has passed from the lower chaff riddle a² it is still further dressed
as the grain and seeds pass through the caping riddle c, on to the seed riddle f, the
seeds being by this riddle separated from the grain which latter passes to the
elevator spout. Any poppy leads, thistle heads or other large matters which are
too heavy for the blast to carry off being unable to pass through the holes of the
caping riddle c, drop sideways out of the machine and are thus separated from the
grain.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
The combination with and use in the bottom shoe or hopper of thrashing
machines of two chaff riddles and means for directing blast under each substantially
as herein before described with reference to the accompanying drawings.
Tato 10 of Ontation 100K