IMPROVEMENTS IN REDUCING EMERY, GLASS, AND OTHER LIKE SUB- STANCES
Year: 1853

page_text: LETTERS PATENT to John Oakey, of Blackfriars Road, in the
County of Surrey, Emery Manufacturer, for the Invention of
"IMPROVEMENTS IN REDUCING EMERY, GLASS, AND OTHER LIKE SUB-
STANCES."
Sealed the 3rd November 1853, and dated the 18th May 1853.
PROVISIONAL SPECIFICATION left by the said John Oakey at the
Office of the Commissioners of Patents, with his Petition, on the
18th May 1853.
I, JOHN OAKEY, of Blackfriars Road, in the County of Surrey,
Emery Manufacturer, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN REDUCING EMERY, GLASS, AND OTHER LIKE
SUBSTANCES" to be as follows:-
My Invention consists in reducing emery, glass, and other like sub-
stances into small granulated particles, so as to preserve, as far as
possible, the facets or sharp angles and sides of the broken crystals. It
is applicable to all substances which are not required to be reduced to
a fine powder or flour.

page_text: The Drawings annexed represent the machine which I employ for
effecting this object. Figure 1, is a front view; Figure 2, a cross
section; and Figure 3, a plan. A, is the sole plate, which is cast in a
piece with the end standards of the framing B. C, C, are the sides of
the pounding trough, which are secured to the ends of the framework
by the bolts and nuts, a, a. D, is a perforated block, which forms the
bottom of the pounding trough, and receives the lumps of emery, &c.,
to be pulverized. This block rests on the projecting pieces b, b, which
are cast on the sole plate A, and is retained in position thereon by
means of the snugs c, c, aided by keys, screws, &c., when desired. A
space equal to the size of the perforations is left open on each side
between the upper surface of the block D, and the lower edges of the
sides of the trough C, C, as shewn at d, d, so as to allow the particles
thrown out by the blows of the stampers to pass through. E, E,
are a series of stampers which slide up and down in guides, and
are worked by tappets upon a longitudinal shaft in the usual manner.
The emery is laid upon the perforated block D, and the stampers
set to work, and as the emery is broken up into fine particles
it falls through the perforations in the block D, and the spaces d, d,
and is received upon the sole plate A. F, F', are plates for filling
up the sides of the machine, and preventing the particles from being
scattered; they also insure its falling upon the inclined surfaces e, e,
between the blocks b, b, from whence it passes to the sole plate. In
- Figure 1, the side plate F, is removed. Figures 4, 5, 6, and 7, represent
portions of the perforated block D, and shew the various shapes which
I intend to give to the perforations.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of May, in the year of
our Lord One thousand eight hundred and fifty-three, in, the sixteenth
year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Oakey, Her special licence that
I, the said John Oakey, my executors, administrators, and assigns,
or such others as I, the said John Oakey, my executors, adminis-
trators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Chan-
nel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
REDUCING EMERY, GLASS, AND OTHER LIKE SUBSTANCES," upon the condi-
tion (amongst others) that I, the said John Oakey, by an instrument
in writing under my hand and seal, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and inmediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Oakey, do hereby declare
the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement thereof, reference being had to the Drawings
hereunto annexed, that is to say:
My Invention consists in reducing emery, glass, and other like sub-
stances into small granulated particles, so as to preserve, as far as
possible, the facets or sharp angles and sides of the broken crystals. It
is applicable to all substances which are not required to be reduced to
a fine powder or flour.
The Drawings annexed represent an arrangement of machinery
which I employ for effecting this object, but I do not confine myself
thereto, so long as the parts are combined so as to produce the like
effect.
Figure 1, is a front view; Figure 2, a cross section; and Figure
a plan of the machine. A, A, is the sole plate, which is cast in a piece

page_text: with the end standards B, B, of the framing. C, C, are the sides of the
pounding trough, which are secured by bolts and nuts, a, a, to the end
pieces B', B, which themselves are bolted on to the end standards B, B,
or cast in a piece therewith. D, is a perforated bed, or it may be a
series of blocks with apertures between them, which forms the bottom
of the pounding trough, and receives the lumps of emery, glass, &c., to
be pulverised or reduced. The perforations in the bed are made of a
gradually increasing size, from the upper to the lower end, in order that
the emery, glass, &c. passing through them may not get set fast. The
bed D, rests on the projecting pieces b, b, which are cast on the sole
plate A, and is retained in position thereon by means of the snugs c, c,
aided by keys, screws, &., when desired. A space about equal to the
diameter or width of the perforations in the bed D, is left open on each
side between the upper surface of the bed D, and the lower edges of the
sides of the trough C, C, as shewn at d, d, so as to allow the particles
of emery, glass, &c. thrown out laterally by the blows of the stampers
to pass through. E, E, are a series of stampers which slide up and
down in guides, and are worked by tappets upon a longitudinal shaft
(not shewn in the Drawings) in the usual manner. The emery, glass,
&. to be reduced is placed upon the perforated bed D, and the
stampers E, E, set to work by means of power applied to the longi-
tudinal shaft before mentioned; and as the emery, glass, &. is broken
up into fine particles it falls through the perforations in the bed D, and
the spaces d, d, and is received upon the sole plate A, from which it is
removed at convenient intervals. F, F', (Figures 2, and 3,) are plates
for filling up the sides of the machine, and preventing the particles of
emery, glass, &c. from being scattered; they also ensure its falling upon
the inclined surfaces e, e, between the rests or supports b, b, from whence
it passes to the sole plate A, as before mentioned. In Figure 1, the
side plate F, is removed in order to shew the other parts of the machine
more distinctly.
Figure 3ª, represents a cross section, and Figure 3b, a front view of
a modification of the above arrangement, in which the blocks form the
bed of the machine with apertures between them, being retained in their
position and prevented from shifting by bolts passed through the

page_text: flanges a, a, of the blocks and the flanges b, b, on the framework of the
machine. The blocks are also further retained in their position by the
pieces c, c, which are cast with the framework, and fit between each
pair of blocks. The front and back of the framing are also made quite
open, so as to admit of the broken or pulverised emery, glass, &c. being
cleared away.
Figures 4, 5, 6, and 7, represent portions of perforated blocks, similar
to the bed D, before described, and shew the various shapes which,
when thought desirable, I intend to give to the perforations. I do not,
however, confine myself to these, as perforations otherwise formed may
be adopted. In all cases I make the perforations wider at bottom than
at top for the reason herein-before stated.
And having now described the nature of my said Invention, and in
what manner the same is to be performed, I declare that what I claim
as my Invention is,-
First, the mode or modes of reducing emery, glass, and other like
substances into small granular particles, so as to preserve, as far as
possible, the facets or sharp angles and sides of the broken crystals, by
means of stamping machinery constructed, arranged, and working in
the manner herein-before described.
Second, the mode of constructing stamping machinery employed for
reducing emery, glass, and other like substances into granular particles,
with perforated beds to receive the substance to be reduced, in manner
and for the purpose herein-before described. And,
Third, the mode of arranging the pounding trough of stamping
machinery employed for reducing emery, glass, and other like sub-
stances into granular particles, so as to leave spaces d, d, between its
lower edges on each side and the upper surface of the perforated bed,
in manner and for the purpose herein-before described.
In witness whereof, I, the said John Oakey, have hereunto set
my hand and seal, this Eighteenth day of November, One
thousand eight hundred and fifty-three.
JOHN OAKEY. (L.S.)