Improved Conical Edge Roller Mill for Grinding Hard Substances.
Year: 1891

page_text: Date of Application, 21st Nov., 1891
Complete Specification Left, 26th Feb., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improved Conical Edge Roller Mill for Grinding Hard Substances.
PHILIP CHARLES NOBLE, Mechanical Engineer Old Foundry House Barnsley,
Yorkshire, do hereby declare the nature of this invention to be as follows:-
-
This improved edge roller mill, is supplied with two or more conical rolls, made
of cast iron or other metal and revolving round on a bedplate or a pan, made of
cast iron or other metal having a cast iron boxed up footstep, to take the vertical
shaft, as shewn on accompanying drawing, the conical rolls when fixed in position,
to have its largest diameter, nearest to the vertical shaft, by so doing, it increases
the grinding capacity, of the mill, and will keep the wearing surfaces, of the
rolls true.
This conical edge roller mill, is constructed as shewn, on accompanying drawing;
but can be fixed on masonary or woodwork, and can be driven by over head gear,
as shewn on accompanying drawing, or can be driven from under the bottom of
bedplate, or pan if required.
The principle of this improved conical edge roller mill, is to give the rolls,
extra grinding surface, and to prevent the rolls, or tyres of rolls, from getting
hollow.
To clearly explain the principle of this invention, references, is made to the
accompanying drawing, in which
Fig. 1 is a sectional elevation of the mill.
Fig. 2 is a plan of the mill.
Marked a. is the conical shaped rolls made of cast iron, or other suitable metal,
and made either solid, or as shewn on accompanying drawing, the largest diameter
or side of the rolls or rollers, to be nearest the centre of bedplate, or vertical shaft
marked b, thus causing a great amount of friction each revolution of the rolls, the
rolls can be made to follow each other, or can be made to revolve on any part of
the bed plate, and suitable scrapers to be fitted, to deliver the ground material,
from one roll, to the other, also to deliver the ground material to the elevator pit.
Marked c. is a bedplate, made of cast iron, or other suitable metal, which can be
fixed on masonary, or woodwork.
Marked d. is a foot step box, made of cast iron, or other suitable metal, with
adjustable foot step, of gun metal, or steel, a dust box marked e, fastened to the
vertical shaft, and covering the foot step, to prevent the dust, from getting into
the foot step.
Marked is a centre driving arm, keyed on to the vertical shaft, for the driving
arms, of the rolls, as described on the accompanying drawing.
Marked J. is the pinion shaft, for driving the crown wheel of the mill, marked h.
on the drawing, I shew, only two conical rolls, but either two, or more rolls, may
be used, to run on same bedplate, or pan.
The principle of the conical rolls, are as follows, that the largest diameter of
the said rolls, being nearest the centre of the mill, and revolving around on its bed,
will greatly increase the grinding capacity, and also will keep their wearing
surfaces true.
Dated this 21st day of November 1891.

page_text: COMPLETE SPECIFICATION.
Improved Conical Edge Roller Mill for Grinding Hard Substances.
PHILIP CHARLES NOBLE Mechanical Engineer Old Foundry House Barnsley
Yorkshire 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 improved edge roller mill, is supplied with two, or more conical rolls, made
of cast iron or other metal, and revolving on a bedplate, or in a pan, made of cast
iron or other metal, having a boxed up foot step, to take the vertical shaft, as
shewn on the drawing deposited with the Provisional Specification, the conical
rolls when fixed in position to have its largest diameter nearest to the vertical
shaft, or centre of pan, by so doing it increases the grinding capacity of the mill,
and keep the wearing surfaces of the rolls true. This conical edge roller mill is
constructed, as shewn on the drawing but can be fixed on masonary or wood work
and be driven by over head gear as shewn on the drawing or can be driven from
under the bottom of bed plate or pan if required.
The principle of this improved conical edge roller mill is to give the rolls extra
grinding or friction surface, and to prevent the rolls, or tyres of rolls, from getting
hollow. To clearly explain the principle of this invention, reference is made to
the drawing in which
Fig. 1 is a sectional elevation of the mill.
Fig. 2 is a plan of the mill.
Marked a is the conical shaped rolls, which can be made of cast iron or other
suitable metal, and can be made either solid, or as described on the drawing, the
largest diameter, or side of the rolls to be nearest the centre of the bedplate, or
vertical shaft marked, thus causing a great amount of friction each revolution of
the rolls, the rolls can be placed on the mill bed, to follow each other, or can be
arranged to revolve on any part of the bed plate, or pan bottom. Suitable scrapers
are fitted to the driving arms of mill, to deliver the ground materials from one
roll to the other, also to deliver the ground materials to the elevator pit.
Marked c is a bed plate made of cast iron or other suitable matel.
Marked d. is a foot step box, made of cast iron or other metal, with adjustable
foot step. Marked e is a dust box, fastened to the vertical shaft, and covering the
foot step. Marked is a centre driving arm, which is keyed on the vertical shaft,
to take the driving arins, of the rolls, as described on the drawing.
Marked g, is the pinion shaft, for receiving the crown wheel of the mill.
Marked H, on the drawing I shew only two rolls, but either one or more rolls may
be used in each mill.
;
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed, I declare that "what
I claim is
The invention of conical shaped rolls, to be used in edge grinding mills, the
said rolls, to revolve on a bedplate, or in a pan, with the largest diameter of the
rolls, to be nearest to the centre of the mill bed, or pan, or vertical shaft, thus
greatly increasing the grinding capacity of the said rolls, over the parallel rolls,
at present in use with edge mills.
Dated this 23rd day of February 1892: