Improvements in Crushing, Pulverizing, and Mixing Machines.
Year: 1888

page_text: Date of Application, 26th Nov., 1888
Complete Specification Left, 20th Aug., 1889-Accepted, 21st Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Crushing, Pulverizing, and Mixing Machines.
I, CLAUDE KENNEDY MILLS of 23 Southampton Buildings, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention, a communi-
cation to me from abroad by Charles Morel of 50 Avenue Alsace-Lorraine, Grenoble,
(Isère) in the Republic of France, Mechanical Engineer, to be as follows, reference
being had to the accompanying drawings
The apparatus constituting the object of the present invention is applicable to the
simultaneous crushing and sifting of solid matters, such as cements, lime, plasters,
alabasters, kaolin, quartz, bones &c. It is also applicable to the crushing and
mixing of moist and plastic materials, to the refining of paper pulp, as also, in milling,
for the regrinding of bran and meal.
It consists principally of a number of balls of some hard material rolling in the
interior of a horizontal fixed ring, against the interior side of which they are forcibly
pressed by centrifugal force.
The balls are driven round by arms fixed to a vertical axis receiving a rapid rotary
motion.
.
The materials introduced by the centre are reduced into fine powder and caused to
pass through a sieve by means of a fan.
This apparatus can be variously arranged. That represented in the accompanying
drawing, as an example, is intended to replace mills with horizontal stones now
employed in crushing cements and other mineral matters. It permits the ironwork
and accessories of an old mill to be retained by simply placing the crusher in the
place of the mill stones, without changing either the driving means, or the means
of transmission of the power, nor the entry or escape of the matters. By this
substitution 60 per cent. of the power employed can be economised, or three times
the production can be obtained with the same power.
The driver C is keyed, in the place of the revolving mill stone, upon the vertical
shaft D, which is held in position by a bearing K fixed to the base L and lubricated
on the exterior by a tube M.
The driver is composed of a plate carrying as many arms as there are balls, which
latter are caused to rotate by pushers P made of flat steel (as shown in figure 2)
fixed to the arms and easily replaced when worn. The balls are supported, when at
rest, by a ring R turning with them.
A ring or bed A consists of a strong ring, hollow on the inner side, to receive the
rolling balls; it is kept central by regulating screws B in the exterior casing, where
it occupies the place of the fixed mill stone.
A slightly conical sieve E, closed at the upper part, is fixed above the bed or
ring A; it is traversed interiorly by three blades F fixed to the arms of the driver.
The matters enter the apparatus by the ordinary hopper G furnished with its
feeder H, or with any other distributor, in the central conduit I, whence they slide
upon the conical part of the driver, and are delivered to the action of the balls, which,
by their pressure and rotation, rapidly produce a great quantity of fine dust. This
dust, driven against the sieve by the current of air due to the blades F, passes
through it and arrives in the annular space J between the bed or ring A and the
exterior casing; it then passes through the base L, which is pierced with large holes,
and falls upon the ground, where a collector N pushes it to the exit orifice O.
This entirely new method of operation gives remarkable results, both as to fineness
and quantities of matter produced, which is due mainly to the fact that the dust is
blown away as quickly as it is produced, and that it does not encumber the balls,
whilst the matters still unground cannot get away.

page_text: The number of balls, their weight, and their speed may all be varied according to
the nature of the work and the requirements of the installation. The means for
transmitting the motion may likewise be varied.
Under certain conditions, where the sifting would not be required, the sieve can
be dispensed with, and the crushed matter can flow away at any part of the bed.
Dated this 26th day of November 1888.
CLAUDE KENNEDY MILLS.
By Harris & Mills,
23, Southampton Buildings, Agents.
COMPLETE SPECIFICATION.
Improvements in Crushing, Pulverizing, and Mixing Machines.
1 CLAUDE KENNEDY MILLS of 23 Southampton Buildings in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention, a communi-
cation to me from abroad by Charles Morel of 50 Avenue Alsace Lorraine, Grenoble
(Isère) in the republic of France Mechanical Engineer, 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 drawings accompanying my provisional
specification:
The apparatus constituting the object of the present invention is applicable to the
simultaneous crushing and sifting of solid matters such as cements, lime, plasters,
alabasters, Raolin, quartz, bones, &c. It is also applicable to the crushing and
mixing of moist and plastic materials, to the refining of paper pulp, as also in milling
for the regrinding of bran meal.
It consists principally of a number of balls of some hard material rolling in the
interior of a horizontal fixed ring against the interior side of which they are forcibly
pressed by centrifugal force.
The balls are driven round by arms fixed to a vertical axis receiving a rapid rotary
motion.
The materials introduced by the centre are reduced into fine powder and caused to
pass through a sieve by means of a fan.
This apparatus can be variously arranged that represented in the accompanying
drawing as an example is intended to replace mills with horizontal stones now
employed in crushing cements and other mineral matters; it permits the ironwork
and accessories of an old mill to be retained by simply placing the crusher in the
place of the mill stones without changing either the driving means or the means of
transmission of the power, nor the entry or escape of the matters.
By this
substitution 60 per cent. of the power employed can be economised or three times the
production can be obtained with the same power.
The driver C is keyed in the place of the revolving mill stone upon the vertical
shaft D which is held in position by a bearing K fixed to the base L and lubricated
on the exterior by a tube. M. The driver is composed of a plate carrying as many
arms as there are balls; which latter are caused to rotate by pushers P made of flat
steel (as shown in figure 2) fixed to the arms and easily replaced when worn.
balls are supported when at rest by a ring R turning with them.
The
The ring or bed A consists of a strong ring hollow. on the inner side to receive
the rolling balls, it is kept central, by regulating screws-B, in the exterior casing
where it occupies the place of the fixed mill stone.
A slightly conical sieve E closed at the upper part is fixed above the-bed or ring A,
it is traversed interiorly by three blades F fixed to the arms of the driver.
The matters enter the apparatus. by the ordinary. hopper-G furnished with its
feeder H or with any other distributor in the central conduit I, whence they slide
upon the conical part of the driver and are delivered to the action of the balls, which.
by their pressure and rotation rapidly produce a great quantity of fine dust. This
dust driven against the sieve by the current of air due to the blades-F,passes

page_text: through it and arrives in the annular space J between the bed or ring A and the
exterior casing, it then passes through the base L which is pierced with large holes
and falls upon the ground where a collector N pushes it to the exit orifice O.
This entirely new method of operation gives remarkable results both as to fineness
and quantities of matter produced which is due mainly to the fact that the dust is
blown away as quickly as it is produced and that it does not encumber the balls,
whilst the matters still unground cannot get away.
The number of bails, their weight, and their speed may all be varied according to
the nature of the work and the requirements of the installation.
The means for transmitting the motion may likewise be varied.
Under certain conditions where the sifting would not be required, the sieve can
be dispensed with and the crushed matter can flow away at any part of the bed.
I would here remark that various modifications may be made in the construction
of the machine without departing from the peculiar character of the invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a machine for crushing, pulverizing mixing and sifting dry moist or plastic
materials, the employment of balls rolling at a great speed against the interior
surface of a fixed ring or bed substantially as herein shown and described.
2. In a machine for crushing, pulverizing, mixing, and sifting dry materials the
employment of a sieve surmounting the crushing apparatus and of a fan which blows
the fine dust through the sieve as it is produced substantially as herein shown and
described.
3. The particular arrangement and combination of parts which enables the
apparatus herein described to be installed instead and in the place of ordinary
crushing mills having horizontal grinding stones by utilizing the ironwork and
accessories of an old mill substantially as herein described.
Dated this 20th August 1889.
CLAUDE K. MILLS.
By Harris & Mills,
Agents.