Improvements in Appliances for Washing Grain, and Separating Straws and Light Shapes therefrom.
Year: 1898

page_text: Date of Application, 21st Oct., 1898
Complete Specification Left, 31st Oct., 1898-Accepted, 17th Dec., 1898
PROVISIONAL
Improvements in Appliances for Washing Grain, and Separating
Straws and Light Shapes therefrom.
CHARLES EDWARD MUMFORD, St. Andrews Works, Bury St. Edmunds, Suffolk,
Engineer, do hereby declare the nature of this invention to be as follows:-
:-
My invention relates to improvements in the arrangement and construction
of appliances or machines for washing grain and separating straws, light shapes
and dirt therefrom.
I use a cistern, by preference one with a conical bottom such as is of well
known construction, and used in maltings.
Near to the said cistern, or at a convenient distance therefrom, I place an air
vessel having a cock inserted at one end, connected by a pipe to the lower part
of the cone which forms the cistern bottom, and into this pipe nearest to the cistern,
I insert another cock having a water supply.
To the most convenient part of the said air vessel I connect an air pump, and
the vessel is fitted with a pressure gauge and safety blow off valve.
The vessel is filled with air by means of the pump before mentioned, to a
pressure of 60 lbs. more or less, according to the quantity of grain being steeped
in the cistern.
The upper part of the cistern is open, but is provided with a trough or drain
along one edge, having a strainer about one and a half inches below the upper
edge of the cistern, and this trough or drain is provided with a down pipe to
carry off the liquor that may overflow.
The cistern being filled with grain and water in the usual way, that is, some-
times sparged in from the top, and sometimes inducted from below, to the level
of the strainer fixed in the trough or drain before mentioned.
The method of washing is simply performed by turning on the water cock
below, and the air cock leading from the air vessel. The air rushing through
the steeped grain causes it to bubble and rise like to the motion of boiling liquor,
and the upward rush of air and water, besides washing the grain brings to the
top of the cistern the slush or scum, and also straws, hollow grains, light flat
flints and the like, and these substances are carried off into the trough or drain
supplied with strainer.
Having now particularly described and ascertained the nature of this
invention, and in what manner the same is to be performed, I declare that what
I claim is
The application of an air vessel, pump, and tank, arranged as described for
washing grain.
L1000

page_text: .
Improvements in Appliances for Washing Grain, and Separating
Straws and Light Shapes therefrom.
CHARLES EDWARD MUMFORD, St. Andrews Iron Works, Bury St. Edmunds,
Suffolk, Engineer, do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement;-
My invention relates to improvements in the arrangement and construction of
appliances or machines for washing grain, and separating straws, and dirt there-
from as I shall describe, referring to the accompanying drawing.
A is a tank or cistern, by preference with a conical bottom, such as is of well
known construction, and used in maltings.
Near to the said cistern A, or at a convenient distance therefrom, I place an
air vessel B, having connection by means of a pipe D with the lower part of the
cone which forms the cistern bottom, the said pipe D being provided with a
cock C near to its junction with the air vessel B.
Into the pipe D, or by preference direct into the cone before mentioned, I.
insert another pipe having a water supply, and provided also with a cock E.
To the most convenient part of the air vessel B, I connect an air pump F, the
said vessel B being fitted with a pressure gauge and safety blow-off valve.
To cistern A at its upper edge, on one side is fitted a trough or drain G in
which is a strainer H.
The said trough or drain G being connected to the waste pipe J for carrying
off the surplus liquor.
The method of working this invention is as follows;
-
The cistern A having been filled in the usual way with grain and water, the
water either sparged in from the top, or inducted from below, to the level of the
strainer H, and the air vessel B having been charged with air by means of the
air pump F, to a pressure of. 60lbs. more or less, according to the quantity of
grain under treatment, I first turn the cock E, causing a flow of fresh water
into cistern A, the surplus being carried off by trough or drain G.
I then release the air from the air vessel B by turning the cock C, and the
action of the current of air, rushing through the steeped grain causes it to bubble
and rise, like to the motion of boiling water, thus washing and cleansing the
grain and carrying to the top, straws, and light flat flints which are floated with
the dirty water and scum into the trough or drain G, the said straws, and light
flat flints being retained by the strainer H, the slush passing away through the
waste pipe J.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed. I declare that what
I claim is:
The application of an air vessel B, pump F and cistern A arranged as above
described for washing grain.
T
1 11
001 1
1
1000