IMPROVEMENTS IN CLEANING WHEAT AND OTHER GRazy, and 15 AppARATUS EMPLOYED THEREIN
Year: 1872

page_text: LETTERS PATENT to Sidney Hopton Hadley, of Bartram Park
Hampstead, in the County of Middlesex, for the Invention of
"IMPROVEMENTS IN CLEANING WHEAT AND OTHER GRazy, and 15 AppARATUS
EMPLOYED THEREIN."-Partly a communication from abroad by Pierre
Cardailhac, of the Republic of France, Engineer.
Sealed the 22nd October, and dated the 8th August 1872.
COMPLETE SPECIFICATION filed by the said Sidney Hopton Hadley at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 8th August 1872, pursuant to the 9th Section of
the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SÍDNEY
HOPTON HADLEY, of Bartram Park, Hampstead, in the County of
Middlesex, send greeting.
"
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
CLEANING WHEAT AND OTHER GRAIN AND IN APPARATUS EMPLOYED THEREIN and
have petitioned Her most Excellent Majesty Queen Victoria to grant
unto me, my exccutors, administrators, and assigns, Her Royal Letters
Patent for the same, and have made solemn Declaration that it is the

page_text: result partly of communication from abroad made to me by Pierre
Cardailhac, of the Republic of France, Engineer, and partly of Invention
and discovery made by myself.
NOW KNOW YE, that I, the said Sidney Hopton Hadley, do hereby
declare the nature of the said Invention to be as follows:-
This Invention has for its object improvements in cleaning wheat and
other grain and in apparatus employed therein.
To remove dirt and impurities from grain it is first passed through a
rotary sieve to remove the larger stones and impurities, and it is then
dropped into a tub through which a stream of water flows. The water 1
enters at the bottom and flows out partly at the top and also partly at
a side opening near the bottom. There is a vertical axis with. arms
revolving in the tub which keeps the grain moving, so that the light
berries, chaff, and dust may float away and be separated, whilst the good
grain with any stones or sand there may be mixed with it escape 1
with the water at the side opening, and flow down an inclined trough.
Resting on the bottom of the trough is a frame of transverse bars, and
these bars intercept the stones and sand whilst the grain is carried over
them by the stream of water. At the lower end of the inclined trough
most of the water is drained away through a perforated plate, beneath 2
which there is a regulating valve which is so adjusted as to leave only
sufficient water with the grain to carry it on over the end of the trough.
It then falls into a perforated casing containing two parallel rotating
axes with beaters, which throw it around the casing, so as to dry it.
In cases where the water supply is limited the water may be allowed
to settle in a settling tank to allow grit and impurities to settle from
it, and it may then be raised by a pump to be again used. The grain is
discharged by an opening at the further end of the casing to which it is
carried forward either by inclining the beaters or by placing stationary
inclines within the casing. From time to time the machine is stopped a
and the cross bars in the trough are lifted to discharge the stones.
In order that the said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawings hereunto

page_text: '
. a, a, is a rotary screen into which the grain is caused to descend in
a regular stream, it passes through this screen, the larger stones being
thrown out at the end. The grain then falls into the hopper 6, and
there are inclined projections a' on the exterior of the screen to help it
forward; is a regulating slide at the bottom of the hopper 6; c is a tub
about twenty inches across into which the grain falls from the hopper.
Water enters the tub by the pipe d at the bottom at the rate of say
thirty gallons a minute. The water ascends through the perforated
bottom c¹ of the tub, and runs out at c², carrying with it the lighter
grains. There is also an opening in the side of the tub at c³, which can
be opened more or less by a slide moving vertically, and by this opening
a stream of water comes carrying with it the sound grain, and any
stones or sand there may be mixed with it, and the whole runs down'
the inclined trough d. This action is aided by a rotating axis with arms
within the tub. d*, d*, are transverse bars resting on the bottom of the
trough d, against these the stones and heavier matters mixed with the
grain accumulate whilst the grain is carried by the water over the bars.
is a grating in the bottom of the trough, it lets the water pass but
retains the grain. d³ is a slide beneath this grating to adjust the
quantity of water which is allowed to escape by it, so that sufficient may
be left to carry the grain on into the drying case c. This casing is
enclosed all round with perforated metal or wire gauze e¹; ƒ and g are
parallel axes within the case c carrying inclined beaters f¹ and g².
These throw the grain around the case and the water escapes through
the perforations at e', the escape of the water and the drying of the
grain is aided by air entering the casing with the grain and also at e², e²,
around the axis 9. The grain escapes from the casing by the spout e³,
towards which it is driven by the inclination of the beaters, or in place
of inclining the beaters the case may be made higher and inclined plates
may be fixed within it over the upper beaters to direct the grain. The
machine is driven from the shaft h at a high speed, say at about 300
to 400 revolutions a minute, an eccentric may be mounted on this shaft
(it is not shewn in the Drawing) to work a pump to circulate the water
as before-mentioned when the supply is limited. The same shaft has a
bevelled wheel upon it driving a pinion on the axis and a belt from a
pulley on this axis gives motion to the axis f. The shaft h also drives
by a pulley and belt the intermediate pulleys i, from which by another
belt the axis & receives motion; a bevelled pinion on the axis k drives
a wheel on the axes of the screen a, and the same wheel gears with a
..
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