IMPROVEMENTS IN PREPARING AND DRESSING ORES AND MINERALS, AND IN THE MACHINERY OR APPARATUS EMPLOYED THEREIN
Year: 1868

page_text: LETTERS PATENT to Julian Bernard, of Salisbury Street, Straud, in
the County of Middlesex, for the Invention of "IMPROVEMENTS IN
PREPARING AND DRESSING ORES AND MINERALS, AND IN THE MACHINERY OR
APPARATUS EMPLOYED THEREIN."
Sealed the 20th April 1869, and dated the 23rd October 1868.
PROVISIONAL SPECIFICATION left by the said Juliau Bernard at the
Office of the Commissioners of Patents, with his Petition, on the
23rd October 1868.
I, JULIAN BERNARD, of Salisbury Street, Strand, in the County of
Middlesex, do hereby declare the nature of my said Invention for
"IMPROVEMENTS IN PREPARING AND DRESSING ORES AND MINERALS, AND IN
THE MACHINERY OR APPARATUS EMPLOYED THEREIN," to be as follows:-
This Invention relates, firstly, to an improved stone, ore, or mineral
breaking or crushing machine, and consists of the use and employment
of a series of moveable teeth or segments made of steel or other metal
placed upon aud secured in blocks or rollers containing suitably formed
[Price 8d.1

page_text: grooves or recesses for the reception of such teeth or segments, and
admitting of their ready removal or renewal without involving the
removal of the blocks or rollers from their shafts or the shafts from their
bearings. Motion may be imparted to these rollers or blocks by gearing
and in the usual manner.
Secondly. It consists of imparting a lateral and differential motion to
crushing rollers, and which may be effected by means of a
eccentric secured to the shaft or shafts on which the rollers are secured,
and which is so placed and arranged that its differential outline comes
in contact with a fixed stud or pin in the course of its revolution, the
object of which motion is to cause the surfaces of such rollers to wear
out more evenly.
Thirdly. My Invention relates to an improved method and means of
sising or dividing the materials, and cousists of combining plain inclined
surfaces with inclined, perforated plates or sieves over which the material
to be operated upon is passed and by which a more perfect result is
obtained, the whole of the perforated plates and plain inclined plates
being placed and arranged in a suitable framing common to the entire
number employed, and leading into separate divisions or compartments
in which the materials are deposited.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Julian Bernard in the Great Seal Patent Office
on the 23rd April 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JULIAN
BERNARD, of Salisbury Street, Strand, in the County of Middlesex, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of October, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reigu, did, for Herself, Her heirs and successors, give
and grant unto me, the said Julian Bernard, Her special license that
I, the said Julian Bernard, my executors, administrators, and assigns, or
such others as I, the said Julian Bernard, my executors, administrators,
or assigns, should at any time agree with, and no others, from time
to time and at all times thereafter during the term therein expressed,

page_text: should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and
Isle of Man, an Invention for "IMPROVEMENTS IN PREPARING AND DRESSING
ORES AND MINERALS, AND IN THE MACHINERY OR APPARATUS EMPLOYED THEREIN,
upon the condition (amongst others) that I, the said Julian Bernard,
my executors or administrators, 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 text and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Julian Bernard, 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, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to
say:-
This Invention relates, firstly, to an improved stone, ore, or mineral
breaking or crushing machine, and consists of the use and employment
of a series of moveable teeth or segments made of steel or other metal
placed upon and secured in blocks or rollers containing suitably-formed
grooves or recesses for the reception of such teeth or segments, and
admitting of their ready removal or renewal without involving the
removal of the blocks or rollers from their shafts or the shafts from their
bearings. Motion may be imparted to these rollers or blocks by gearing
and in the usual manner.
Secondly. It consists of imparting a lateral and differential motion to
crushing rollers, and which may be effected by means of a cam or
eccentric secured to the shaft or shafts on which the rollers are secured,
and which is so placed and arranged that its differential outline comes
in contact with a fixed stud or pin in the course of its revolution, the
object of which motion is to cause the surfaces of such rollers to wear
out more evenly.
Thirdly. My Invention relates to an improved method and means of
sising or dividing the materials, and consists of combining plain inclined
surfaces with inclined perforated plates or sieves over which the material
to be operated upon is passed, and by which a more perfect result is
obtained, the whole of the perforated plates and plain inclined plates
c.

page_text: being placed and arranged in a suitable framing common to the entiro
number employed, and leading into separate divisions or compartments
in which the materials are deposited.
And in order that my said Invention may be fully understood I shall
now proceed more particularly to describe the same, and for that purpose
shall refer to the several Figures on the annexed Sheet of Drawings, the
same letters of reference indicating corresponding parts in all the
Figures.
The first part of my Invention is represented by Figures 1, 2, 3, 4, 5, 6,
and 7, the first two Figures representing a plan and elevation of the
principal features of this part of my Invention, Figures 3, 4, 5, 6, and 7
being details of the same. Figures 1 and 2 shew a block or holder which
I employ for holding the moveable direct cutting or crushing tools. The
block or holder contains recesses or grooves, several of which grooves
are shewn in the Drawing with the moveable cutting or crushing tools
removed. Figures 6 and 7 represent end views of two different forms
of the moveable teeth or crushing surfaces. 3, 4, and 5 shew circular
discs which I employ in connection with my improved crusher for the
purpose of holding the moveable teeth or crushing surfaces in prope
position; they also serve to keep the material to be crushed from falling
out at the edges of the crushing machine. C, C, are grooves in the disc
into which the moveable teeth or crushing surfaces take, the whole being
secured to the block or holder A by means of bolts and nuts, as shewn
at several of the Figures. The block or holder is shewn secured on a
shaft D, and may be employed with a plain rollér as shewu at E, or with
one of the improved or similarly constructed crusher. The machine is
driven by ordinary toothed wheels and gearing; and the lever F,
framing G, and other accessories are illustrated to shew the action of the
machine, and form no part of this head of my Invention, which I con-
sider to consist of the use and application of a series of separate teeth or
crushing surfaces (readily removable), the holder or block A, and the
combination of such moveable teeth or crushing surfaces and block or
holder with the discs B in revolving crushing machines. The moveable
teeth or crushing surface shewn at Figure 7 may be so formed and
placed as to cover the whole of the block or holder, and thus form oue
continuous steel or other hard surface; but I do not claim a continuous
steel surface or roller except where such are used and employed in
connection with the block or holder A or the discs B for crushing in

page_text: revolving machines; but such moveable teeth or crushing surfaces may
be varied without departing from the principles of this head of my
Invention.
The second part of my Invention, which will be readily understood by
reference to Figures S and 9 on the Drawing, where A and B represent
a pair of ordinarily smooth rollers made fast on their respective shafts,
and C a grooved pulley made fast on the shaft D, which shaft is free to
move laterally on its bearings. E is a lever placed upon a centre F, as
shewn; G is a cam into the recessed groove of which one end of this
lever takes by means of a suitable stud and roller. H is a wheel made
fast upon the shaft I and revolves with it, and over which a chain passes
to H 1; which chain is not shewn in the Drawing, for conveying motion
to the cam G, and which cam as it revolves imparts the required lateral
motion to the shaft D and roller upon it. The grooved wheels Hand H 1
may vary in their respective diameters so as to impart either a slow or a
rapid lateral motion to the machine. In carrying out this part of my
Invention I do not limit or confine myself to the special manner or
means of effecting this lateral motion, as the same may be obtained by
other means, bat what I consider to be my Invention is the imparting
of a lateral motion to crushing rollers without regard to the means
employed.
The third part of my Invention consists of the employment and use of
a plain plate in conjunction with a wire screen or perforated plate for
sizing ore as at present used in machines for such purpose. Figure 10
on the Drawing shews a partial elevation of a separating machine, and
Figure 11 an end view, partially in section, of the improved compound
screen arranged and combined according to this part of my Invention,
the iuclines of the perforated plates or wire screens being alternately
inclined in opposite directions, which with the additional plate con-
stituting this part of my Invention causes the material and water to
travel over the entire length of the plain plate, and delivers both at the
top end of the perforated screen, thus causing a great economy in the
quantity of water employed and obtaining a much more perfect result.
A, A, shews wooden uprights in which the improved compound framing
Figure 11, is placed, and where B marks the ordinary perforated plate,
and C the additional plate. These compound frames are placed and
secured in the framing A, A, as shewn. D, D, are upright rods to which
the frames are secured, and through which an intermittent upright

page_text: motion may be imparted by means of a cam or wiper as is commonly
used in gigging machines, but which it is not considered necessary to
shew in the Drawing. E is a pipe through which water is allowed to
pass from any convenient head pressure, which is sprinkled on the
material to be separated. The material to be operated upon is thrown
on the part F of the top screen, and the combined action of the water
and the intermittent motion imparted to the combined screens will cause
the material and water to pass over or through each compound screen
in succession, the receptacles G, G, receiving such particles as do not
pass through the perforations in each compound screen, thus separating
the material with great nicety.
In witness whereof, I, the said Julian Bernard, have to this my
Specification set my hand and seal, this Twenty-second day of
April, One thousand eight hundred and sixty-nine.
J. BERNARD. (L.S.)