Improvements in Machinery for Working Coal and other Minerals.
Year: 1888

page_text: Date of Application, 23rd Jan., 1888
Complete Specification Left, 23rd Oct., 1888
Complete Specification Accepted, 23rd Nov., 1888
PROVISIONAL SPECIFICATION.
Improvements in Machinery for Working Coal and other Minerals.
We, WALTER THOMAS GOOLDEN, of 2 Victoria Mansions, Westminster, in the
County of Middlesex, Electrical Engineer, and LLEWELYN BIRCHALL ATKINSON, of
Bull Green Works, Halifax, Yorks, Civil Engineer, do hereby declare the nature of
this invention to be as follows:-
:-
This invention relates to improvements in machinery for cutting, or working, coal,
or other mineral, and has for its object the provision of means for undercutting the
coal, or other mineral, at the bottom of the seam, the cutter, or drill, being kept as low
as possible so as to ensure the least waste of the coal, or other mineral, to be worked.
To allow of this invention being carried into effect the cutter, or drill, is suitably
coupled to, or may form part of, a shaft which rotates in a long bearing hung from a
centre about which it may swing in a horizontal, or nearly horizontal, plane. The
same centre serves also to carry a vertical shaft having a bevel wheel and this engaging
with a similar bevel wheel on the rotating cutter shaft admits of motion being
transmitted to the cutter shaft in any position in the horizontal plane.
The shaft to which the cutter is attached is preferably carried, by its bearing, under
a table, or frame, mounted on wheels so as to run on the usual trams, or rails, and
supporting the prime mover, or source of power, such as an electric, steam, or air
motor, or rope wheel, and may be arranged so as to only just clear the rails on which
the table, or frame, travels.
The centre, or trunnion, about which the cutter shaft rotates, in the horizontal
plane, may preferably be carried in front of the table so as to allow of cutting being
effected on either side of the table or at any intermediate point in the arc described
by the rotation of the cutter bar in a horizontal plane.
The cutter shaft and its supporting gear may be so arranged as to allow of their
being more or less inclined to the plane of the carrying table, or frame, so that when
the table, or frame, is horizontal the cutter bar may be set to cut at more or less

page_text: "dip" or inclination to the table When the prime mover is an electric, steam, or air
motor it may remain fixed, horizontally, upon the table, or frame, and transmit its
motion to the vertical shaft, which in turn imparts motion to the cutter bar, by a second
pair of bevel wheels.
To allow of the cutter bar being fed forward to its work, when working with its
axis at right angles to the rails on which the table, or frame, travels, it may be formed
as a square bar, or provided with a sufficiently long feather key so as to allow of its
being fed forward, by a screw or other device, axially through the bevel wheel by
which motion is imparted to it, or the table, or frame, may be so constructed as to
allow of that part of it which supports the trunnion, or centre, and the long bearing
in which the cutter shaft rotates, being traversed in a direction at right angles to the
rails on which the table, or frame, runs, or similarly the whole top of the table,
or frame, may be made to so traverse.
Dated this 92nd do of
Tona 1000

page_text: COMPLETE SPECIFICATION.
Improvements in Machinery for Working Coal and other Minerals
We, WALTER THOMAS GOOLDEN, of 2 Victoria Mansions, Westminster, in the
County of Middlesex, Electrical Engineer, and LLEWELYN BIRCHALL ATKINSON, of Bull
Green Works, Halifax, Yorkshire, Civil Engineer, 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 invention relates to improvements in machinery for cutting, or working, coal,
or other mineral, and has for its object the provision of means for undercutting the
coal, or other mineral, at the bottom of the seam, the cutter, or drill, being kept as
low as possible so as to ensure the least waste of the coal, or other mineral, to be
worked.
To allow of this invention being carried into effect the cutter, or drill, is suitably
coupled to, or may form part of a shaft which rotates in a long bearing hung from a
centre about which it may swing in a horizontal, or nearly horizontal, plane. The
same centre serves also to carry a vertical shaft having a bevel wheel and this
engaging with a similar bevel wheel, on the rotating cutter shaft, admits of motion
being transmitted to the cutter shaft in any position in the horizontal plane.
The shaft to which the cutter is attached is preferably carried by its bearing, under
a table, or frame, mounted on wheels so as to run on the usual trams, or rails, and
supporting the prime mover, or source of power, such as an electric, steam, or air
motor, or rope wheel, and may be arranged so as to only just clear the rails on which
the table, or frame, travels.
The centre, or trunnion, about which the cutter shaft rotates, in the horizontal plane,
may preferably be carried in front of the table so as to allow of cutting being effected
on either side of the table or at any intermediate point in the arc described by the
rotation of the cutter bar in a horizontal plane. The cutter shaft and its supporting gear
may be so arranged as to allow of their being more or less inclined to the plane of the
carrying table, or frame, so that when the table, or frame, is horizontal the cutter
bar may be set to cut at more or less "dip," or inclination to the table. When the
prime mover is an electric, steam, or air motor, it may remain fixed, horizontally,
upon the table, or frame, and transmit its motion to the vertical shaft, which in turn
imparts motion to the cutter bar by a second pair of bevel wheels.
To allow of the cutter bar being fed forward to its work, when working with its axis
at right angles to the rails on which the table, or frame, travels, it may be formed as a
square bar, or provided with a sufficiently long feather key so as to allow of its being
fed forward, by a screw, or other device, axially through the bevel wheel by which
motion is imparted to it; or the table, or frame may be so constructed as to allow of
that part of it which supports the trunnion, or centre, and the long bearing in which
the cutter shaft rotates, being traversed in a direction at right angles to the rails on
which the table, or frame, runs, or similarly the whole top of the table, or frame, may
be made to so traverse.

page_text: Having now set forth the nature of our invention and shown in what matter the
same is to be carried into effect we will now proceed to more particularly describe
the same by reference to the accompanying drawings.
Figure 1 is an end elevation and Figure 2 a side elevation of a coal cutting machine
constructed in accordance with this our invention.
Suitably mounted on the frame, or table T is an electro motor M the spindle A
of whose armature imparts motion by means of the bevel wheels b, 6, to the vertical
spindle d. This vertical spindle d is provided at its lower end with a bevel wheel, as
shown in Fig. 1, which in turn imparts, by means of a second bevel wheel, motion
to the drill, or cutter, shaft D), carried in the long bearing E and attached by the
coupling c, c', to the drill, or cutter, C. The long bearing E is cast or otherwise
formed with the vertical sleeve piece F which passes through and is supported by
the bracket B suitably secured to the frame or table T. The sleeve piece F is
provided with the toothed wheel I and the worm J on the spindle of the hand-wheel H
engaging with this toothed wheel I allows of its being rotated and so causing the
long bearing E, and with it the drill, or cutter, C, to be rotated in a horizontal
plane.
The electro motor together with the whole of the working parts are enclosed in a
dust tight casing t, t, as shown.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what we
claim is
Constructing a machine for cutting coal, or other mineral, so as to allow of the
cutting being effected at the lowest possible level, or as near to the floor as possible,
in the manner substantially as hereinbefore described and shown in the accompanying
drawings.