A MACHINE OR APPA- RATUS FOR CLEANSING OR PURIFYING WHEAT, GRAIN, OR OTHER SUBSTANCES
Year: 1830

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, J, WILLIAM
WEDD TUXFORD, of Boston, in the County of Lincoln, Miller, send greeting.
WHEREAS His present most Excellent Majesty King William the
Fourth, did by His Letters Patent under the Great Seal of Great Britain,
bearing date at Westminster, the Sixth day of July, in the first year of His
reign, give and grant unto me, the said William Wedd Tuxford, His especial
licence, that I, the said William Wedd Tuxford, my exors, admors, and
assigns, and such others as I, the said William Wedd Tuxford, my exors,
adñors, or assigns, should at any time agree with, and no others, from time
to time and at all times during the term of years therein expressed, should
and lawfully might make, use, exercise, and vend, within England, Wales, and
the Town of Berwick-upon-Tweed, my Invention of "A MACHINE OR APPA-
RATUS FOR CLEANSING OR PURIFYING WHEAT, GRAIN, OR OTHER SUBSTANCES;" in
which said Letters Patent is contained a proviso, obliging me, the said
William Wedd Tuxford to particularly describe the nature of my said
Invention, and in what manner the same is to be performed, to be inrolled
in His said Majesty's High Court of Chancery within six calendar months
next and immediately after the date of the said in part recited Letters
Patent, as in and by the same, reference being thereunto had, will more
fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
William Wedd Tuxford, do hereby declare that the nature of my said:

page_text: Invention, and the manner in which the same is to be performed, are parti-
cularly described and ascertained in and by the following description thereof,
reference being had to the Drawings hereunto annexed, and to the figures and
letters marked thereon (that is to say :)-
My Invention consists in a combination of apparatus whereby I am enabled
to work a series of sieves by power derived from water, wind, steam, or
other well-known means, but as the power to be applied forms no part of my
Invention, no description thereof will be necessary; but in order that my
Invention may be more fully understood and carried into effect, I will proceed
to describe the Drawing hereunto annexed.
DESCRIPTION OF THE DRAWING.
Fig. 1 represents a machine or apparatus constructed according to my
Invention, and is capable of working six sieves; a, b, c, d, e, and f, are six
spindles, their ends or points working on bearings 9, and in gudgeons h, affixed
to the framework i, i, i, i. j the perpendicular supports of the framework i,
and k the diagonal bearings for strengthening such framework. is the main
shaft which receives rototary motion from any sufficient power, and in this shaft
t, there is a drum wheel m, from which the power given to the shaft is
communicated to the drum wheels n, fixed in the spindles a, b, c, d, e, and f.
o are the sieves, the construction of which will be better understood when
I come to describo Fig. 2. p, p, p, are three rods by which the sieves are
suspended from the beam q, q, and r are trunks or pipes descending from
the floor above, through which the grain or other substances to be acted on
pass into the sieves o. is a bar having its bearings at t, t, t, in which bearings
it is allowed to turn. u is a handle by which the bars is turned. vis a
On the bar s is formed
pronged lever having its fulcrum or axis at w.
raised projections x, which when the bar is turned press upon and force down
the end of the lever v, and will consequently raise the forked or other ends
y,, of this lever, and with it the slides 1 and 2 connected therewith by means
of wire, all which will be fully understood when I come to describe the
manner in which the various parts work. A, A, are rings of wood having
hooks B, B, B, on which the rods which support the sieves are suspended, as
seen in the Drawing, there are also hooks C, C, C, fixed to the sieves for the
purpose of hanging it to the rods p, p, p, the rings A, A, have a cross frame
running from side to side, by which it may be secured or otherwise affixed to
the beam q, q, so that to put up or take down this part of the machine or
apparatus it will only be necessary to fix or unfix these rings, the other parts

page_text: being suspended therefrom as before described. I will here observe that in
this Figure 1, there is but one sieve complete, which is shewn at D, the parts
at E are complete, all but the placing of the sieve; the spindles c, d, e, and f,
are shewn without sieves or the parts from' which they are suspended; but as
they are all constructed similarly, I have not thought it necessary to show
them in the Drawing, besides which my Invention is not confined to any
particular number of sieves, as it is evident that any number may be used;.
and also however many may be connected to be driven by one shaft, any lesser
number may be used by removing the bands or straps from the drum of those:
which it is desired to be put out of work. F, F, F, are receivers for the wheat
or other grain as it is sifted.
I will now describe Fig. 2, which shews a section of a sieve. G is a sieve.
placed at the bottom, by which the dust, small seeds, &c., which pass through.
the sieve are removed. H is a small hopper fixed at the bottom of the sieve
to direct the grain into the receivers F, as it falls through the valve or opening
I after it is sifted. J is the side of the sieve, and K is the wire gauze which
forms the sieve. L is a fixed bottom of wood placed under the wire gauze to
prevent the dust, small seed, &c. falling to the ground. M is a support placed
in the center of the sieve, which pressing up the wire gauze causes it to
incline from the centre towards the sides. N is a bent piece of iron screwed or.
otherwise secured to the bottom L of the sieve, through this bent piece N, the
part O of the crank passes, the part of the crank P being fixed to the spindles
a, b, c, d, e, and f, the part P of the crank has a mortice or gap cut in it, and
by means of an adjusting screw Q; the quantity of motion given to the sieves
may be regulated, as will be evident by the Drawing.
Having now described the various parts which constitute a machine or.
apparatus constructed according to my Invention, I will now proceed to
describe the manner of working the same. We will suppose that a quantity.
of grain is in the floor above that in which the apparatus is placed, and that.
the same will pass through the trunks or pipes r, the quantity supplied of such
grain to the sieves will be regulated by the stop Y placed on the lower end of
the trunk or pipe r, which stop consists of a flat iron guage, which is raised
or lowered by a screw passing through a bridge as shewn in the Drawing, by
which means the quantity of grain admitted will be according to the space
allowed by the guage for its passage, and when I wish to stop the working of
the sieves, I turn the bars by the handle u, and bring down the sliders 1 and
2, which prevents the descent of the grain and closes the valve I. Motion
being given to the shaft I, will turn the drum wheel m, and the motion will

page_text: be transmitted to the drums n fixed on the spindles a, b, c, d, e, and f. Thus
from the drum m, the motion will by means of the bands or straps R, S, give:
motion to the spindles a and d, and by means of the bands or straps T and U,
the motion from the spindles a and d, will be communicated to the drums on
the spindles band e, and from thence by means of the straps V and W, motion
will be communicated to the drums on the spindles c and f, and thus the six
sieves placed on the top of these spindles, and. by the cranks by which the
connections are made, the motion is communicated to the sieves, but the.
motion of the sieves is prevented being rotary by the suspending rods p, p, p,
but in place of a rotary, the motion of the sieves will be a continued drawing
from side to side, together with a rising and falling according to the position.
of the cranks, one side being slightly elevated whilst the opposite side will be
depressed, during which operation the corn as it is sifted will fall through the-
valve or opening I, in proportion as the sliding part Y is kept raised or
lowered, and thus enlarging or contracting the supply. It will be seen that
the sleeve is tied up, which is the case till the accumulation under the sieve
requires the same to be removed, when it may be done by untying the sleeve,.
and thus opening the end to allow the passage of the matter accumulated. It
will be found that the lighter particles contained in the corn will be found to
accumulate in the center (at the top of the grain), of the sieve from which
place it is to be removed by hand. It will be seen that the short action of
the crank O, P, will not carry the small hopper out beyond the receiver F,
so that the wheat or other grain will always fall into the-same, and I would
here observe, that this receiver F, may be a hopper, having a trunk or pipe
descending to the place at which the sifted corn is required either to be there
lodged, or to the stones for grinding.
Having now fully described the nature and action of my Invention, I would.
have it understood, that although I have here described parts of my apparatus.
or machinery which, separately, are well known and in use, yet I lay no
claim to them separately, but what I claim is, the combining such parts in the
manner above described, and applying them when so combined to the purpose
of cleansing or purifying wheat, grain, or other substances; and I do further
claim the acting on sieves suspended as above, described by means of cranks in
the manner above described, and for the purposes above named.
"
In witness whereof, I, the said William Wedd Tuxford; have hereunto
set my band and seal, this Twenty-fourth day of December, in the
year of our Lord One thousand eight hundred and thirty.
i
W. W. (L.S.) TUXFORD.

page_text: AND BE IT REMEMBERED, that on the Twenty-fourth day of December,
in the year of our Lord 1830, the aforesaid William Wedd Tuxford came
before our said Lord the King in His Chancery, and acknowledged the Speci-
fication aforesaid, and all and every thing therein contained and specified,
in form above written. And also the Specification aforesaid was stamped
according to the tenor of the Statute made for that purpose.
Inrolled the Sixth day of January, in the year of our Lord One thou-
sand eight hundred and thirty-one.