Improvements relating to Machines for Separating and Sorting Broken or Small Grain from the Whole Full Sized Grain or Seeds and the Method of Constructing same.
Year: 1888

page_text: Date of Application, 9th July, 1888
Complete Specification Left, 4th Apr., 1889--Accepted, 3rd Aug., 1889
PROVISIONAL SPECIFICATION.
Improvements relating to Machines for Separating and Sorting
Broken or Small Grain from the Whole Full Sized Grain or
Seeds and the Method of Constructing same.
CHARLES EDWARD MUMFORD St. Andrews' Works Bury St. Edmunds Engineer
DAVID HEARN 6 St. Andrews Street North Bury St. Edmunds Engineer do hereby
declare the nature of this invention to be as follows :-
This invention relates to Machines for separating & sorting Broken or small
Grain, or Seeds, from the whole, full size grain or seeds, & a combination of the same
with another Sifter and Apparati, constructed in a novel manner; according to our
invention, the Grain or Seed to be, separated is feed from a suitable hopper by means
of a revolving feed roll, "constructed in a novel manner, with metal ends and
corrugated iron barrel" into a Separator for removing large substances constructed in
a novel manner, thus, 1st a perforated riddle the under side of which is fitted with
slats of metal, fixed in a sloping direction from side to side of same the edges pointing
towards the upper part of the Separator and conveying Grain or whatever passes
through to the upper part of the next riddle of the said Separator. The next or
second riddle of this Separator is composed of wires placed longitudinally at suitable
distances, and each space provided with a collar or cleaners which collars or cleaners
are threaded and kept in place by means of rods, running beneath the sieve &
supported upon, metal strings, specially arranged for the purpose, this Separator
reciprocates at same speed as Screen next mentioned of which it forms a part.
An Improved Self-Cleaning Screen or Grader, working in conjunction with the
before mentioned, and hereafter described "Apparati."
A novel manner of suspending the said Screen for the purpose of causing it to
reciprocate, the said Screen and the Broken Corn Separator both taking motion from
and hanging upon one and the same set of springs. An improved method of con-
veying the bulk of the Grain to the Broken Corn Extractor, viz. an endless belt
working between the two & delivering Grain to top end of said Extractor.
An Improved Broken Corn and Seed Separator consisting of a case, containing
three or more sieves or riddles, placed one beneath the other on an incline the said
riddles being composed of perforated corrugated sheets of metal, the bottom or under-
neath sides, being fitted with slats or strips of metal which are fitted across the same,
one edge being near to the under surface of the said riddle and the other edge
pointing towards the upper end of the riddle next beneath, causing any Grain which
passes through any of the sieves or riddles to pass towards the upper part of the
riddle next beneath, thus insuring that the Grain travels over the largest possible
surface of sieve, though the said riddles are placed near to each other, the case which
contains these riddles reciprocates and is carried upon the same spring suspenders
which carry the Screen before mentioned.
A metal cylinder which has depressions upon the inner surface of suitable depth
for further dividing the Broken & good Grain mixed which may have passed through.
the before described Separator, the said Cylinder working in combination with the
rest of the Apparatus.
Dated this Seventh day of July 1888.
CHARLES EDWARD MUMFORD.
DAVID HEARN.

page_text: COMPLETE SPECIFICATION.
Improvements relating to Machines for Separating and Sorting
Broken or Small Grain from the Whole Full Sized Grain or
Seeds and the Method of Constructing same.
CHARLES EDWARD MUMFORD, of 33 St. Andrews' Street, Bury St. Edmund's
Suffolk, Engineer, and DAVID HEARN, 6 St. Andrews' Street, Bury St. Edmund's,
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 :-
This invention relates to the construction of a machine for separating half-corns of
barley or other grain from the whole grain, and for separating round seeds from
barley, or other grain, from substances which are larger than the grain itself.
According to the present invention the grain to be cleaned passes from a hopper by
means of a feed roll on to a Large Substance Separator A constructed in the
following manner :-
A number of wires V V V fig. 1 are placed longitudinally at convenient distances
from each other, being held in their places by means of cross bars W fig. 1 which are
punched to receive same; the spaces between the said longitudinal wires being
sufficiently wide to permit of good grain passing through.
A washer or collar X fig. 1 is placed in each space between the wires and is kept
in position by being threaded upon stationary cross rods Y fig. 1 which traverse the
under part of the said wire bed fig. 1 their ends resting upon metal strings Z fig. 2
which metal strings are fixed beneath the sides or frameing of separator fig. 1 see
side view of said metal string Z fig. 3, the said large substance separator fig. 1 is
placed in position in a wood case A¹ fig. 3 which is suspended upon wood spring
hangers A2 fig. 3 and to which a reciprocating motion is imparted by means of a dip
crank and connecting rod in the ordinary way see fig. 3. and 5. The self cleaning is
effected in the following manner that is to say, the collars or washers X fig. 1 are
stationary being hung or supported upon rods Y fig. 1 which rest upon the said metal
strings Z fig. 2 and 3. The said wire bed constructed as fig. 1 moves backwards and
forwards and thus the spaces occupied by the stationary collars or washers X fig. 1
are swept or cleared or cleaned every time that the said wire bed reciprocates.
This method of constructing the said self cleaning separator is of well known
design.
Above the said wire bed or self cleaning separator is placed a perforated metal
sieve indicated by the dotted line B fig. 3. Attached to the under part of this metal
sieve are metal slats D D fig. 3 running crossways of the length also shown by dotted
lines D D fig. 3 one edge of the said slats touches the under part of the said riddle to
which it is secured, the other edge pointing in the direction of the upper or higher
surface of the wire separator beneath; which wire separator is illustrated by fig. 1
and the top surface of it by dotted line A³ fig. 3: the said metal slats being placed as
described serve to bring the grain or substances which pass through the perforated
riddle, towards and on to the higher part of the self cleaning wire separator. The
said riddle is sufficiently coarse to permit all grain to pass, but to bring off substances
larger than the grain into the box É illustrated generally in fig. 3. Figure 1 showing
a plan of the said wire self-cleaning large substance separator, and figure 2 side view
of the said metal string, with collar rod resting in it.
A reciprocating motion is imparted to the said wire sieve which causes the grain to
pass through, and large substances to pass off into a Box E shewn in fig. 3.
Next below the said Separator is a Self-cleaning Screen or sieve of well known
construction F, having on the under side a false bottom which conveys any small
grain which passes through to a side spout G at the lower end; the dead board at the
lower end of the frame which carries this screen has a gap or opening H in it through
which the good grain falls upon an endless belt beneath I, which travels in the

page_text: direction of the upper end of the riddle case next beneath it, but on occasion the said
aperture H can be closed, thus bringing off the large grain direct from the top bed
to the floor in front of the Apparatus.
The riddle case J next beneath the said endless band is designed for the purpose of
making a separation of half-corns of barley or other grain from the whole corns, or
for round seeds from barley or other grain, and for all sorts of separations of grain or
seeds, and is constructed in the following manner :-
A plain wood case J is supported upon spring suspenders & moved backwards &
forwards by means of a connecting rod worked from a dip shaft in the usual way, and
as illustrated generally in fig. 3.
In the said box or case are placed 3 perforated corrugated metal sieves K, having
wood splines running the length ways of the width of their two outer edges, and
being furnished with slats L or strips of metal or other substance placed crossways of
the length immediately beneath each of the said riddles, being attatched at their ends
to the said wood splines.
The said slats are placed as shewn by the dotted lines in general drawing fig. 3.
and by the section of the side of the said riddle case fig. 4.
One of the edges of the said slats as indicated by dotted lines touches the under
part of the perforated sieve beneath which it is placed & to which it is secured, the
other edge points in the direction of the higher part of the sieve beneath, and thus
forms a shelf to conduct any grain which passes through on to it towards the upper
or higher part of the riddle next beneath it, by this means making the very most of
the screening surface of all of the said perforated corrugated riddles.
We do not confine ourselves to 3 more or less riddles, but use more or less as
occasion requires. The side splines of the said riddles rest one upon each other, the
said splines being of sufficient thickness to keep the riddles at suitable distances.
The best grain passing off the front of the apparatus generally illustrated by fig. 3.
whilst such half-corns or round seeds together with any whole grain which may have
passed through the said riddles escape through an opening M beneath the extreme
lower end of the said riddles falling upon an endless band N which travels towards a
hopper O fixed at the upper end of a metal cylinder P, illustrated generally in
fig. 3.
An end section of the upper end being shewn in fig. 5. (Plafe 2). This cylinder
has cells indented in the inner surface after the manner of those of well known
construction, but is arranged, constructed, and driven in a novel manner, viz., as
follows:-
A bar or rod runs through the centre of the entire length of the said cylinder
which supports a metal trough S, also running the entire length of the said cylinder,
as illustrated in fig. 5 (Plate 2). One of the edges of the said metal trough nearly
touching the inner side of the said cylinder slightly above the centre. By the action
of the cells or indents in the inner surface of the said cylinder which revolves, half-
corns or round seeds are lifted from the bulk of grain which is travelling down the
space beneath the said trough and are deposited inside it. Inside the said iron trough
is a worn indicated by the dotted lines in fig. 3. this worm is turned by means of a
spur wheel & pinion T as illustrated fig. 6. (Plate 2) which shows the lower end of
the said cylinder, the pinion being placed on the worm spindle the larger wheel being
part of an open pattern cast end of cylinder, the worm revolves so as to bring broken
grain or round seed or whatever is in the trough out at the upper end of the
said trough i.e. at the same end as the hopper from which the said cylinder is
fed.
Whole grain passes out from underneath the trough at the lower end of the said
cylinder. The said cylinder is hung upon and driven by a belt U, which passes
round the main driving spindle and beneath the said cylinder causing it to revolve
ممم
6x К Plat 01

page_text: Having now particularly described & ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is.
One. Constructing a Large Substance Separator with a coarse perforated riddle
with metal slats beneath its surface and Self-cleaning wire part.
Two. Combination with self cleaning wire sieve of well known description.
Three. A Broken Grain & Seed Separator composed of riddles with metal
slats.
Four. A cellular cylinder, with worm & trough inside, making a delivery of
dross at one end and clean grain at the other.
Five. A combination of the said Large Substance Separator, Self-Cleaning
Screen, Riddle Broken Grain Separator, and Cellular Cylinder, arranged & worked
in the manner described and with Endless Bands for conveying grain from one
Separator to the other in the manner shewn & described with reference to the
accompanying drawing.
Dated this Third dev of Anril 188a
C. E. MUMFORD.
D. HEARN.