IMPROVEMENTS IN APPARATUS FOR THE REDUCTION OF GRAIN
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, ARTHUR WILLIAM. LOVELL REDDIE of the Office for Patents 6 Breams
Buildings Chancery Lane in the County of Middlesex, Patent Agent, do hereby
declare the nature of my invention for IMPROVEMENTS IN APPARATUS FOR THE
REDUCTION OF GRAIN to be as follows: -
This invention relates to certain improvements in the apparatus for the reduction
of grain for which the present applicant obtained Letters Patent dated 3rd February
1882 No 533.
According to the present invention a single radially grooved table or disc is
rotated at very high speed and dashes the grain against a series of detachably
mounted stationary blades, breakers or disintegrators arranged circumferentially
around the rotating disc, thereby effecting the reduction of the grain at a single
operation.
This single grooved table or disc is secured to the top of its spindle by means of
a conical tightening arrangement such for example as a coned socket fitting onto
the tapering extremity of the spindle, the two parts being forced together by means
of nuts. This arrangement is found to be preferable to keying the table to its
spindle by a key driven half within the spindle and half within the boss of the
table. In the new apparatus the upper grease box forming the upper bearing,
instead of being situate above the table and within the feed delivery cone, is
situate beneath the table.
The grooves of the rotating table or disc are moreover enclosed by an annular
plate of sheet iron bolted to the disc itself and rotating therewith.
The groups of blades are bolted to an annular piece or pieces provided with a
flange or flanges which is or are nipped between the cover and outer casing of the
apparatus.
These groups of blades can thus be readily detached and replaced by roughened
surfaces constituting stationary breakers or disintegrators against which the grain
will be violently thrown from the radial shutes formed in the grooved rotating
table by the covering plate of sheet iron.

page_text: The breakers or disintegrators may be made of cast iron, steel or other suitably
hard material grooved or toothed as may be desired, and this arrangement can bo
advantageously used for freeing the husks from floury particles after any of the
ordinary milling operations.
The facilities thus afforded for detaching the cutting blades and replacing them
by stationary crushing breaking or disintegrating surfaces, greatly enhance the
value of the apparatus, while the single table arrangement mounted in the manner
described simplifies the construction of the apparatus.

page_text: I, ARTHUR WILLIAM LOVELL REDDIE of the Office for Patents 6 Bream's
Buildings, Chancery Lane in the County of Middlesex Patent Agent do hereby
declare the nature of my invention for IMPROVEMENTS IN APPARATUS FOR THE
REDUCTION OF GRAIN 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 certain improvements in the apparatus for the reduction
of grain for which the present applicant obtained Letters Patent dated 3rd February
1882 No 533.
According to the present invention a single radially grooved table or disc is
rotated at very high speed and dashes the grain against a series of detachably
mounted stationary blades, breakers or disintegrators, arranged circumferentially
around the rotating disc, thereby effecting the reduction of the grain at a single
operation.
The following is a description of these improvements which are represented on
the accompanying drawing, (as communicated to me by my correspondents).
Experience has proved that in the greater number of cases a single radially
grooved table suffices for the cutting and breaking up of the grain, provided its
speed of rotation be sufficiently augmented. The spindle A therefore only carries a
single table I fixed upon it by means of a conical tightening device consisting of a
coned socket and screw nuts, an arrangement which is preferable to a. key, half
inserted in the spindle and half in the boss of the table.
The vertical grease box E which serves as a bearing for the upper part of the
spindle A is fixed beneath the table I, instead of, as formerly, within the feed
distributing cone, above the table.
Moreover the blade supporting rings J are arranged as shown in Figs. 6 and 7,
that is they are bolted upon an annular piece securely held between the cover and
outer casing of the apparatus. These pieces may be replaced by breakers or disin-
tegrators of cast iron, steel or other material of sufficient resistance, arranged at
an angle or in any manner which may be considered useful, not only for producing
the disintegration of the grain by concussion, but also for freeing the husks of
grain from the floury particles adhering to them after any of the operations of
milling.
Fig. 3 represents a portion of the table I showing the grooves covered in by the
aunular plate of sheet iron K.
Fig. 4 shows the form of the blades united by the bolts, and
Fig. 5 the form of the spacing blocks which separate the blades.
The operation of the apparatus is substantially the same as has been described in
the specification of the Patent above referred to, and need not therefore be herein
further described.
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 --
1. The use of a single grooved table for projecting the grain against the blades
and onto the breakers or disintegrators and the mounting of this table on its spindle
by a conical tightening arrangement within the feed distributing cone and above
the upper bearing or grease box of the spindle, substantially as described.

page_text: 2. The arrangement described for facilitating the removal of the blade supporting
rings, and the substitution in lieu thereof of breakers or disintegrators of cast iron,
steel or other hard material having grooved, toothed or serrated surfaces, as and for
the purpose set forth.
3. The combination in an apparatus for the reduction of grain of blade supporting
rings or segments J detachably secured between the cover and outer casing of the
apparatus, and a single grooved disc or table I, mounted upon a spindle within
the feed distributing cone F and above the grease box, or upper bearing E, and
provided at its periphery with an annular plate of sheet iron K, as and for the
purpose set forth.