CRUSHING AND REDUCING TO POWDER STONE OR OTHER HARD MATERIAL
Year: 1885

page_text: PROVISIONAL SPECIFICATION.
We, JOSEPH FOULDS of Ireland Bridge Bingley in the County of York
Contractor and SAM TOMLINSON of 9 Ann Place Little Horton Lane Bradford in
the said County Civil Engineer do hereby declare the nature of our invention
for CRUSHING AND REDUCING TO POWDER STONE OR OTHER HARD MATERIAL to be
as follows:-
The machine consists of 2 cones of cast iron fastened together and caused to
revolve with an eccentric motion within a stationary cylinder and cone likewise of
cast iron. The outer surfaces of the revolving cones and the inner surfaces of the
stationary cylinder and cone are fluted that is, have V teeth. The machine gives
constant effective action. The cones revolve about a vertical axis.
JOSEPH FOULDS.
S. TOMLINSON.

page_text: COMPLETE SPECIFICATION.
We JOSEPH FOULDS of Ireland Bridge, Bingley in the County of York,
Contractor, and SAM TOMLINSON of 9 Ann Place, Little Horton Lane, Bradford in
the said County, Civil Engineer, do hereby declare the nature of our invention
for APPARATUS FOR CRUSHING AND REDUCING TO POWDER, STONE AND OTHER
MATERIAL," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
"
Our invention relates to that class of stone crushing apparatus, in which the
stone, or other substance to be operated upon, is broken into small fragments or
dust by means of fluted, or corrugated cones of cast iron, revolving eccentrically
within hollow fluted cones or cylinders.
To carry out our invention, we bolt, or otherwise fasten together, the bases of
two fluted or corrugated cones of cast iron, which cones are placed upon a square
shaft which revolves vertically, and the upper cone is held securely in its place by
strong iron plates bolted to the apex thereof. These iron plates, for the purpose of
attaching the cone to the shaft, are not pierced to receive the square shaft in such
manner that the shaft will coincide with the true axis of the cones, but the hole is
formed to receive the square shaft out of centre, so that when the shaft is caused
to revolve it gives an eccentric motion to the cones.
The upper cone revolves within a fluted or corrugated hollow cylinder, or hollow
cone, and the bottom cone with its apex pointing downwards revolves in another
fluted hollow cone, the apex of which is in the same direction. The hollow cones, or
cylinder and cone herein before referred to, are contained in a strong cylindrical
case of iron to which they are secured by bolts.
The stone or other material to be crushed passes between, and is caught by the
flutings or corrugations of the eccentrically revolving cones, and the inside flutings
or corrugations of the fixed hollow cylinders or cones hereinbefore referred to.
In order to enable our invention to be fully understood we will describe the
same with reference to the accompanying drawings in which, Figure 1 represents
a sectional elevation of our improved apparatus for crushing stone and Figure 2 is
a plan of the same partly in section, through the line at A¹ B' in Figure 1.
Similar letters refer to similar parts in both drawings. The base of the upper
fluted cone A is attached by bolts or otherwise to the base of the lower cone B,
a square hole is formed in the bottom part of the cone B through which passes
the shaft D and upon this shaft a shoulder E is formed upon which the
cone B rests.
At the upper part of the cone A are plates F and G which are for the purpose
of fixing or holding the cone A to the square shaft D and by means of which plates
the cone is caused to revolve with the shaft.
The square hole to receive the shaft is formed partly in each of the plates F
and G in such manner that when the plates are put together the hole is not in
their centre but is sufficiently out of centre to give the required amount of
eccentricity in its revolution to the cone A to which the plates are fixed. The

page_text: internally fluted but stationary cylinder C operates in conjunction with the upper
cone A and the internally fluted cone H which is also stationary operates with the
lower cone B.
When the flutings upon one side of the revolving cones become too much worn
to be effective, the plates F & G are unbolted and replaced upon the shaft D either
in a position opposite to or at a right angle to that in which such plates were
originally fixed, whereby a fresh portion or an unworn side of the fluted cones is
brought into the most prominent and effective position for operating upon the
stone to be crushed.
The hollow cylinder C and the hollow cone or bowl H are fixed within a strong
cylindrical case of iron T and made fast thereto by screws or bolts U.
The square vertical shaft D which bears, and gives motion to the revolving cones,
passes through a bearing L fixed upon the cross stay M and the shaft has upon
its upper extremity the mitre wheel G driven by the mitre wheel H upon
the horizontal shaft J, which shaft receives motion from the drum K driven
by power.
The bottom of the shaft D works in a brass footstep O which is placed in a
socket in the centre of a stay supported across the bottom of the machine.
An iron plug P which can be raised or lowered by means of a lever and set
screw, supports the bottom of the brass footstep, whereby the shaft D bearing the
crushing cones can be raised or lowered according to the distance required between
the bottom cone and the bowl or hollow cone within which it operates.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, be it understood that
we make no claim to a single eccentrically revolving fluted cone, for the purpose
of crushing stone, nor do we claim the method of raising and lowering the footstep
in which the lower extremity of the shaft revolves, but what we claim is
1. The construction and use of machinery for crushing stone and other hard
substances with two cones attached base to base, or cast in one or more pieces,
and secured to a shaft in such manner as to rotate eccentrically as described.
2. The hollow chambers fluted inside and acting in combination with the two
cones in the manner described.
3. The method of attachment of the upper cones to the shaft by plates or other
similar device for bringing into effective use the unworn portion of the cones, in
the manner set forth, or any mere modification thereof.
4. The combination of the two cones with the hollow fluted surfaces, and the
method of attachment and adjustment of such cones to the vertical driving shaft,
in the manner described, or any mere modification thereof.
Dated this first day of June 10,
TURNER & BAKER,
Agents,
Town Hall Chambers, Bradford (Yorks.)