Improvements in Automatic Charging Apparatus for Grinding Mills and other Machines.
Year: 1899

page_text: Date of Application, 19th June, 1899
Complete Specification Left, 19th Feb., 1900-Accepted, 31st Mar.,
1900
PROVISIONAL SPECIFICATION.
Improvements in Automatic Charging Apparatus for Grinding Mills
and other Machines.
I, CHARLES DENTON ABEL, of Birkbeck Bank Chambers, Southampton Build-
ings, in the County of London, Consulting Engineer and Chartered Patent Agent,
do hereby declare the nature of this invention (as communicated to me from
abroad by Albin Berthold Helbig, Chief Engineer, of Warstade-Hemmoor, and
Portland Cement Fabrik Hemmoor, in Hemmoor, Germany, Manufacturers)
to be as follows:-
The apparatus forming the object of the present invention and shewn on the
accompanying drawing has for its purpose to automatically feed in a regulatable
manner material of the most varied granulated state into grinding, sorting, sifting
machines and the like.
Referring to the accompanying drawing in which Fig. 1 shews a sectional
side view and Fig. 2 an end view, the device consists of a plunger a
of cylindrical or any other cross section working in a hopper i and actuated
by the machine to which it is attached (in the present case a ball mill)
through the medium of a pin c attached eccentrically to the shaft of the mill
and of a rod k and rocker d e. The motion of a takes place in such a manner
that the upper end of the rocker strikes alternately against a stop f fixed on a
and a moveable one g, the position of which can he adjusted by means of the
adjusting device g. By shifting the latter the stroke of the plunger can be
varied as will be readily seen from the drawing.
The material filled into the hopper i may consist of large or small pieces and
is caused to accumulate under an angle corresponding to the natural slope. The
arrangement is so contrived that if the angle e corresponding to the natural slope
is laid off from the point where the materials are discharged, the said angle
is made to eat the upper edge of the discharge opening of the filling hopper
After the
so that the mass inside the latter is consequently in equilibrium.
apparatus has been set in motion, each stroke of the plunger a disturbs the
equilibrium, thereby displacing a certain quantity of material, which falls into
the mill.
The shifting forward of the material towards the place from which it falls into
the mill takes place in a perfectly straight line. The lateral forces caused by
the progress of the material when a worm conveyor or the like is used (as in
German Patent No. 49892) and which give rise to the formation of arches within
the material to be shifted are avoided by the new arrangement as are also the
breakages of the shifting device. In order to work with complete security and
use as little motive power as possible, the filling hopper enlarged gradually
so as to taper outwards towards the part where the material drops into the mill.
Dated this 19th day of June 1899.
•
ABEL & IMRAY,
Agents for the Applicant.

page_text: Improvements in Automatic Charging Apparatus for Grinding Mills
and other Machines.
رأ).
I, CHARLES DENTON ABEL, of Birkbeck Bank Chambers, Southampton Build-
ings, in the County of London, Consulting Engineer and Chartered Patent Agent,
do hereby declare the nature of this invention (as communicated to me from
abroad by Albin Berthold Helbig, Chief Engineer, of Warstade-Hemmoor, and
Portland Cement Fabrik Hemmoor, in Hemmoor, Germany, Manufacturers,)
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:―
The apparatus forming the object of the present invention and shewn on the
drawing accompanying my Provisional Specification has for its purpose to auto-
matically feed in a regulatable manner material of the most varied granulated
state into grinding, sorting, sifting machines and the like.
Referring to the drawing accompanying my Provisional Specification in which
Fig. 1 shews a sectional side view and Fig. 2 an end view, the device consists of a
plunger a of cylindrical or any other cross section working in a hopper i and
actuated by the machine to which it is attached (in the present case a ball mill)
through the medium of a pin c attached eccentrically to the shaft b of the mill
and of a rod k and rocker de. The motion of a takes place in such a manner
that the upper end of the rocker strikes. alternately against a stop f.fixed on a
and a moveable one g. the position of which can be adjusted by means of the
adjusting device gl. By shifting the latter the stroke of the plunger can be
varied as will be readily seen from the drawing.
1 .
The material filled into the hopper i may consist of large or small pieces and
is caused to accumulate under an angle corresponding to the natural slope. The
arrangement is so contrived that if the angle e corresponding to the natural slope
is laid off. from the point where the materials are discharged, the said angle
is made to out the upper edge of the discharge opening of the filling hopper
so that the mass inside the latter is consequently in equilibrium. After the
apparatus has been set in motion, each stroke of the plunger a disturbs the
equilibrium, thereby displacing a certain quantity of material, which falls into
the mill.
The shifting forward of the material towards the place from which it falls into
the mill takes place in a. perfectly straight line. The lateral forces caused by
the progress of the material when a worm conveyor or the like is used (as in
German Patent No. 49892) and which give rise to the formation of arches within
the material to be shifted are avoided by the new arrangement as are also, the
breakages of the shifting device.
In order to work with complete security and use as little motive power as
possible. the filling hopper is enlarged gradually so as to taper outwards towards
the part where the material drops into the mill..
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
Automatic charging apparatus for grinding mills and other machines, con-
sisting of a plunger situated within the feeding hopper for the material, and
having a regulatable reciprocating motion imparted to it whereby it is caused
during the forward motion to expel a corresponding amount of the material from

page_text: the hopper, the discharge opening of the latter being so arranged that the material
lies free with the slope of its natural slipping angle opposite the said reciprocating
plunger, substantially as described.
Dated this 19th dow of February 1900
ABEL & IMRAY,
Agents for the Applicant.