IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING OR GETTING COAL, STONE, AND OTHER MINERALS
Year: 1868

page_text: LETTERS PATENT to John Gillott, of Chapeltown, in the County of
York; Engineer, and Peter Copley, of Warren, Mechanic, for the
Invention of "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR CUTTING
OR GETTING COAL, STONE, AND OTHER MINERALS."
Sealed the 16th February 1869, and dated the 25th August 1868.
PROVISIONAL SPECIFICATION left by the said John Gillott and Peter
Copley at the Office of the Commissioners of Patents; with their
Petition, on the 25th August 1868.
We, JOHN GILLOTT, of Chapeltown, in the County of York, Engineer,
and PETER COPLEY, of Warren, Mechanic, do hereby declare the nature
of our said Invention for IMPROVEMENTS IN MACHINERY OR APPARATUS FOR
CUTTING OR GETTING COAL, STONE, AND OTHER MINERALS," to be as follows:-
This Invention relates to a peculiar construction, arrangement, and
combination of apparatus to be worked by any suitable prime mover for
the purpose of cutting or getting coal, stone, and other minerals.
[Price 8d.]

page_text: According to this Invention it is proposed to employ a horizontal
revolving wheel or disc having a series of cutters mounted on the peri-
phery thereof, such cutters being made to cut outwards or from the
bottom of the groove or undercut to the face of the working, whilst the
body of the machine itself takes its bearing against the face in order to
resist the strain of the cut. In some cases one or more guide rails may
be employed in addition. The whole is mounted on a suitable carriage
made sufficiently low to admit of the cutters getting well down to the
bottom of the face for the purpose of "holing in
holing in the bottom when
required. The cutter wheel is rotated slowly but powerfully by the aid
of spur,
bevel, and worm gearing carried on the main framing.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Gillott and Peter Copley in the Great Seal
Patent Office on the 25th February 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
GILLOTT, of Chapeltown, in the County of York, Engineer, and PETER
COPLEY, of Warren, Mechanic, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of August, in the year
of our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said John Gillott and Peter Copley, Her
special license that we, the said John Gillott and Peter Copley, our
executors, administrators, and assigns, or such others as we, the said
John Gillott and Peter Copley, our executors, administrators, and
assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY OR
APPARATUS FOR CUTTING OR GETTING COAL, STONE, AND OTHER MINERALS,"
upon the condition (amongst others) that we, the said John Gillott
and Peter Copley, our executors or administrators, by an instrument in
writing under our hands and seals, or under the hand and seal of
one of us, should particularly describe and ascertain the nature of the

page_text: said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the said John Gillott and Peter Copley,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement reference being had to the accom-
panying Drawings and to the letters and figures marked thereon, that is
to say:-
i
Our said Invention relates to a peculiar construction, arrangement, and
combination of apparatus to be worked by any suitable prime niover for
the purpose of cutting or getting coal, stone, and other minerals.
According to this Invention it is proposed to employ a horizontal
revolving wheel or disc having a series of cutters mounted on the peri-
phery thereof, such cutters being made to cut outwards or from the
bottom of the groove or undercut to the face of the working, whilst the
body of the machine itself takes its bearing against the face in order to
resist the strain of the cut. In some cases one or more guide rails may
be employed in addition. The whole is mounted on a suitable carriage
made sufficiently low to admit of the cutters getting well down to the
bottom of the face for the purpose of "holing in "the bottom when
required. The cutter wheel is rotated slowly but powerfully by the aid
of spur, bevel, and worm gearing carried on the main framing.
And in order that our said Invention may be fully understood we shall
now proceed more particularly to describe the same, and for that
purpose
shall refer to the several Figures on the annexed Sheet of Drawings,
the same letters of reference indicating corresponding parts in all the
Figures.
Figure 1 represents a plan of our improved machine for cutting or
getting coal, stone, and other minerals; Figure 2 is a side elevation
thereof; and Figure 3 is a vertical section of the cutting wheel, showing
the mode of driving the same and of connecting it with the main
framing.
A is the horizontal cutting wheel or disc of cast iron or other suitable
metal in the periphery of which are mounted in suitable sockets a
number of cutters a, a, of any well-known or suitable form. This disc
revolves round a stationary centre or boss B fitted to or formed on the

page_text: of the fence bracket D.
under side of a covering plate C, which plate is bolted to the under side
The bracket D is itself bolted to the bed plate E
of the engine, which is mounted on travelling wheels F, F. The cutter
wheel A has internal cog teeth made therein, as shown at 6 (Figure 1)
where a portion of the covered plate is broken away in order to expose
the teeth. In these teeth gears a spur pinion G fast on the lower end
of a short upright spindle or shaft H working in a long bearing I cast
in the fence bracket. On the upper end of the shaft H there is keyed
bevel wheel K into which gears a corresponding bevel wheel L fast
on the driving shaft M. This shaft works in suitable bearings in the
standards N, N, and has keyed upon it the spur wheel O which derives
motion from the pinion P fast on the crank shaft Q of the engine. The
crank shaft may be driven by any convenient prime mover, but we
prefer to employ a compressed air engine of which R, R, represent the
two oscillating cylinders. It will thus be seen that on starting the
engine a slow but powerful rotatory motion will be imparted to the cutter
wheel or disc A, the cutters a cutting or scooping out the coal, stone,
or other mineral from the bottom of the groove towards the face or front
of the working. During this action of the cutters the entire machine is
caused to travel slowly along in order to keep the cutters well up to
their work. This feed motion is derived from the endless screw S on the
shaft M gearing into a horizontal worm wheel T fast on a short vertical
shaft working in a collar bearing U in the bed plate, and carrying at its
lower end a horizontal chain pulley V which gears into the chain W.
The rear end of this chain is left free after first passing round or being
returned over the guide pulley V¹, as shown in dotted lines in Figure 1;
but its forward end is anchored some distance ahead of the machine,
being first guided over the front guide roller X mounted on the ends of a
pair of tension rods Y and a rigid T-iron bar Z which project from the
front end of the machine. The object of thus guiding the chain along
which the machine hauls itself forward is to keep the machine well up to
its work by resisting the tendency it has to revolve round the centre of
the cutting wheel or disc.
Having now described and particularly ascertained the nature of our
said Invention, and the manner in which the same is or may be used or
carried into effect, we would observe in conclusion that what we consider
to be novel and original and therefore claim as the Invention secured to
us by the herein-before in part recited Letters Patent is, the application

page_text: and use to and in the cutting or getting of coal, stone, and other minerals
of a horizontal revolving wheel provided with cutters and operating so as
to cut outwards or from the bottom of the groove or undercut to the face
of the working, substantially as herein-before described and illustrated
by our Drawings.
In witness whereof, we, the said John Gillott and Peter Copley, have
to this our Specification set our hands and seals, this Twentieth
day of February, One thousand eight hundred and sixty-nine.
JOHN GILLOTT. (L.S.)
PETER COPLEY. (L.S.)