1000 Apparatus for Crushing, Pulverising, and the like.
Year: 1898

page_text: Date of Application, 17th Aug., 1898
Complete Specification Loft 17th May 4000
1000
Apparatus for Crushing, Pulverising, and the like.
I, BRUNO LEON EDMOND MOUSTIER, of Valdonne, par Peypin, Bouches-du-
Rhone, France, Engineer, do hereby declare the nature of this invention
to be as follows:―
This invention relates to apparatus for breaking, crushing, pulverizing and
disintegrating materials of various degrees of hardness the disintegration of the
material being effected by the violent projection of the fragments of the material
against one another.
One arrangement of crusher suitable for carrying out the method above indicated
comprises a chamber or casing of very hard metal the internal surface of which
is provided with teeth or flutings. At the upper part of this casing there is a
charging chamber into which the substances to be crushed are introduced by
means of a belt conveyor or other suitable means. Inside the casing there are
arranged vanes or tappets, of which there may conveniently be three, mounted
on separate shafts driven from the exterior of the said casing by means of a strap
passing over pulleys that are keyed each on one of the said shafts which can
thus be rotated at a very high speed, for example 1000 to 1500 revolutions per
minute.
In the lower part of the casing there is provided an outlet or passage which
leads into an elevator that may advantageously be of a bucket type; or any
other suitable system may be used. This elevator has for object to convey the
fragments it receives from the crusher casing up into the mouth of an upper
passage which conducts them back again into the chamber at the top of the
casing. In the lower passage there is arranged a sieve, that may be a perforated
plate, a grating, or a metallic cloth, and through which the pulverized material
passes when it has become reduced to fragments of a size corresponding to the
orifices of the said sieve. In the chamber, or casing there is arranged a dis-
tributing block which directs the material on to the two uppermost vanes.
The vanes or tappets being in motion, when the materials to be crushed are
fed into the upper part of the chamber they fall on to the two upper vanes
which project them violently against one another thereby breaking them up. The
lower vane strikes the fragments which fall down, and projects them, or some of
them, upwards. The materials to be crushed impinge against one another with
considerable violence in the chamber, the walls of which are very hard and are
as above mentioned provided internally with teeth, whereby the said fragments
are gradually reduced to pieces and dust. The elevator continually takes up
the fragments which fall into the lower passage and pass the sieve therein the
said fragments being thereby conducted to the upper passage through which they
return to the pulverizing chamber.
By effecting the pulverisation of material in accordance with this invention the
friction with the crushing elements is obviated or reduced to a minimum and is
no longer considered to be an essential part of the crushing action, the chief

page_text: factor being the projection of portions of the material against other portions
thereof, whereby the wear and tear of the apparatus and waste of power are
reduced to a minimum.
Hitherto the crushing has been effected either by the blows of a hammer against
the material, or by the projection of the said material against a mass or body,
cr by crushing between two surfaces such as in mills and ball-crushers, with
the result that in every case, the energy which produces the friction or the
impact is divided between the parts of the machine, and the materials to be
crushed. But according to this invention the greater portion of the energy acts
upon the material to be crushed,..thereby greatly reducing the wear and tear
of the parts and giving a much better utilization of the energy.
It will be obvious that by arranging the. delivery portion that is, the sieve,
outside the pulverizing chamber, it cannot be damaged by the impact or by
the pressure exerted by the fragments as is usually the case, in other crushers
such as for example hammer crushers.
It will be understood that crushers according to this invention, may be made of
various sizes and may be considerably modified in construction without departing
froin the essence of the invention.
T
1
: -
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
I, BRUNO LEON EDMOND MOUSTIER, of Valdonne, par Peypin, Bouches-du-
Rhone, France, 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 apparatus for breaking, crushing, pulverizing, and
disintegrating materials of various degrees of hardness, the disintegration of the
material being effected by the violent projection of the fragments of the material
against one another.
A crusher suitable for carrying out the method above indicated is represented
in Fig. 1 of the accompanying drawings in vertical section and in Fig. 2 in
section according to the line 2-2 of Fig. 1. It comprises a chamber or casing A
of very hard metal the internal surface of which is provided with teeth or flutings.
At the upper part of this casing there is a charging chamber A' into which
the substances to be crushed are introduced at A2 by means of a belt conveyor or
other suitable means. Inside the casing A there are arranged three vanes or
tappets B, 1, 132, mounted on separate shafts & driven from the exterior of the
casing A by means of a strap C passing over pulleys that are keyed on the
shafts which can thereby be rotated at a very high speed--for example, 1000
to 1500 revolutions per minute.
In the lower part of the casing A there is provided an outlet passage D, which
leads into a suitable elevator Di that may advantageously be of a bucket type.
This elevator has for object to convey the fragments it receives from the crusher
casing up into the mouth of an upper passage 12 which conducts them back
again into the chamber A¹ at the top of the casing A. In the lower passage D
there is arranged a sieve E, which may be a perforated plate, a grating, or a
metallic cloth, and through which the pulverized material passes when it has
become reduced to fragments of a size corresponding to the orifices of the sieve:

page_text: In the chamber or casing A there is arranged a distributing block F, which
directs the material on to the two upmost vanes B and B¹.
The vanes or tappets being in motion, when the materials to be crushed are
fed into the upper part A' of the chamber A, they fall on to the two upper vanes B
and B', which project them violently against one another, thereby breaking them
up. The lower vane B2 strikes some of the fragments that fall down, and pro-
jects them upwards. The materials to be crushed impinge against one another
with considerable violence in the chamber A, the walls of which are very hard
and are, as above mentioned, provided internally with teeth, whereby the said
fragments are gradually reduced to pieces and dust. The elevator D' continually
takes up the fragments that fall into the lower passage D and pass the sieve
therein, the said fragments being thereby conducted to the upper passage D²,
through which they return to the pulverizing chamber.
In the pulverization of material in apparatus in accordance with this invention
friction with the crushing elements is obviated or reduced to a minimum, and is,
indeed, not considered to be an essential part of the crushing action, the chief
factor being the projection of portions of the material against other portions
thereof, whereby the wear and tear of the apparatus and waste of energy are
reduced to a minimum.
Hitherto the crushing has been effected either by the blows of a hammer
against the material, by the projection of the material against a mass or body,
or by crushing between two surfaces as in mills and ball-crushers, with the result
that in every case the energy that produces the friction or the impact is divided
between the parts of the machine and the materials to be crushed. But in appar-
atus according to this invention the greater portion of the energy acts upon the
material to be crushed, thereby greatly reducing the wear and tear of the parts
and giving a much better utilization of the energy.
It will be obvious that, since the delivery portion that is, the seive is arranged
outside the pulverizing chamber, it cannot be damaged by the impact or by the
pressure exerted by the fragments as is frequently the case in other crushers-
for example, hammer crushers.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed, I declare that what
I claim is
1. Apparatus in which material is broken, crushed, pulverized, or disintegrated
by the violent projection of portions of the material against one another, sub-
stantially as set forth.
2. A crusher for operating by projecting portions of the material to be treated
against one another, comprising a chamber A whose internal surface is provided
with teeth or flutings and in which there revolve three vanes or tappets B B B³,
the material to be pulverized being fed in at the top, and, after portions thereof
have been projected against one another, falling down until returned by an
elevator to the upper part of the chamber where it is again struck by the vanes
or tappets, and so on, as hereinbefore described and shown.
3. A crusher according to Claim 2, in which a sieve, forming the outlet for
the pulverized material, is provided in the passage D that conveys the fragments
from the chamber A to the elevator D¹, as herein before described and shown.
4. The improved crusher constructed, arranged, and operating as herein before
described with reference to and shown in the accompanying drawings.
128
CM 1900
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.