IMPROVEMENTS IN MACHINERY OR APPARATUS FOR PULVERISING MINERALS AND OTHER SUBSTANCES
Year: 1876

page_text: LETTERS PATENT to Balthasar Wilhelm Gerland, of Macclesfield, in the County
of Chester, for the Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS
FOR PULVERISING MINERALS AND OTHER SUBSTANCES." A communication from
abroad by Heinrich Albert and Eugen Albert, both of Biebrich am Rhein, in
the Empire of Germany.
PROVISIONAL SPECIFICATION left by the said Balthasar Wilhelm Gerland
at the Office of the Commissioners of Patents on the 2nd December 1876.
BALTHASAR WILHELM GERLAND, of Macclesfield, in the County of Chester.
"1M-
PROVEMENTS IN MACHINERY OR APPARATUS FOR PULVERISING MINERALS AND OTHER
SUBSTANCES." A communication from abroad by Heinrich Albert and Eugen
Albert, both of Biebrich am Rhein, in the Empire of Germany.
This Invention relates to the construction of a simple apparatus intended
principally for pulverising or disintegrating superphosphates, clay, earth, coal, or
other minerals, and consists chiefly of an open drum or wheel constructed as
follows: Upon an axle mounted on suitable bearings is keyed a boss having a disc
at one end. To this disc are bolted (say) four arms, near the extremities of which
is fixed a concentric ring; parallel to this ring are two other rings of similar
diameter, and these rings are connected to the former by a series of cross stays or
rods, both at their points of junction with the arms, and also at intermediate points.
Thus it will be seen that an open drum or wheel will be formed, having arms at one
side only, and mounted upon an axle to which a rapid revolving motion (say from
300 to 500 revolutions per minute) is imparted by means of a strap or belt passing
round a pulley keyed on one end of the axle. The superphosphate or other material
to be pulverized is delivered by means of a hopper into the interior of this drun or
wheel, and in falling it meets with the cross stays or rods in their rapid revolution
in the reverse direction, and becomes thereby thoroughly pulverized or disintegrated.
A movable hood is placed over the upper half of the drum or wheel.
In a modification of this Invention the hopper is placed so as to deliver the
superphosphate or other material on to the outside of the wheel instead of the inside,
in which case the drum or wheel may have arms on both sides of the boss.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Balthasar Wilhelm Gerland in the Great Seal Patent Office on the 1st
June 1877.
BALTHASAR WILHELM GERLAND, of Macclesfield, in the County of Chester.
"IMPROVEMENTS IN MACHINERY OR APPARATUS FOR PULVERISING MINERALS AND
OTHER SUBSTANCES." A communication from abroad by Heinrich Albert and Eugen
Albert, both of Biebrich am Rhein, in the Empire of Germany.
This Invention relates to the construction of a simple apparatus intended
principally for pulverising or disintegrating superphosphates, clay, earth, coal, or
other minerals, and consists chiefly of an open drum or wheel constructed as
follows: Upon an axle mounted on suitable bearings is keyed a boss having a disc
at one end to this disc may be bolted (say) four arms, near the extremities of
which are fixed two concentric rings; parallel to these rings, and at a covenient
distance from them are two other rings of similar diameter, and these rings are
connected to the former by a series of cross stays or rods, both at their points of
junction with the arms, and also at intermediate points; or if preferred the disc may
be sufficiently large to form one side of the machine entire. Thus it will be seen
that an open drum or wheel will be formed, having arms or a disc at one side only,
and mounted upon an axle to which a rapid revolving motion (say from 300 to 500
revolutions per minute) is imparted by means of a strap or belt passing round a
pulley keyed on one end of the axle. The superphosphate or other material to be
pulverized is delivered by means of a hopper into the interior of this drum or wheel,
and in falling it meets with the cross stays or rods in their rapid revolution in the
reverse direction, and becomes thereby thoroughly pulverized or disintegrated. A
movable hood is placed over the upper half of the drum or wheel.
In a modification of this Invention the hopper is placed so as to deliver the
superphosphate or other material on to the outside of the wheel instead of the inside,
in which case the drum or wheel may have arms on both sides of the boss, or it
may be formed of two discs connected together by a series of cross stays or rods.
Such being the nature and object of the said Invention, I will now proceed to
describe more in detail the manner in which the same is to be or may be performed
or carried into practical effect, and in order that the same may be clearly understood
I have annexed hereunto a sheet of Drawings illustrative thereof, and have marked
the same with figures and letters of reference corresponding with those in the
following explanation thereof:-
In the annexed Drawing Fig. 1 is an external elevation; Fig. 2, a vertical section
through the line A, B; and Fig. 3, a vertical section through the line C, D, of a
pulverizing or disintegrating apparatus made according to this Invention.
a, a, is the framing of the apparatus supporting in suitable bearings b, b, the axis
c, c, on one end of which is keyed the boss d, d, (which in this modification is cast
in one piece with a disc d', d, forming one entire side of the drum), and on the
other end is keyed the driving pulley e, e; f, f, are two concentric rings, bolted a
convenient distance from the disc d, d, by means of a series of cross stays or rods
,, so as to form a hollow drum or wheel, into the interior of which the super-
phosphate or other material to be acted upon is delivered by means of the hopper
h, hi, i, is the hood placed over the upper part of the drum.
Fig. 4 is a section showing the way in which two of these drums may be combined
together when required.
Having now described the nature and object of the said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
eflect, I wish it to be understood that I claim as the Invention communicated to me
by the said Heinrich Albert and Eugen Albert, the construction and use for such
purposes of an open hollow drum of the description herein-before explained and
illustrated by the Drawings annexed, or any mero modification or imitation thereof,

page_text: constructed and operating in substantially the same or a similar manner, and whether
used singly or two or more in combination.
In witness whereof, I, the said Balthasar Wilhelm Gerland, have hereunto set
iny hand and seal, this Twenty-ninth day of May, in the year of our Lord
One thousand eight hundred and seventy-seven.
B. W. GERLAND. (L.S.)