Improvements in Coal Getting and in Machinery used for this Purpose.
Year: 1898

page_text: Date of Application, 23rd Dec, 1898
Complete Specification Left, 12th Oct. 1899-Accepted. 18th Nov. 1899
PROVISIONAL SPECIFICATION.
Improvements in Coal Getting and in Machinery used for this
Purpose.
I, LORD MASHAM, of Swinton, Masham, Yorks., do hereby declare the nature
of this invention to be as follows.-
At the present time there are numerous inventions and patents for coal cut-
ting, but so fai without much result, as they are only used in seams with good
and strong 100fs and then only to a very limited extent
To overcome the difhculties hither to experienced 1 according to this inven
tion after the working face has been prepared by the colliers lay down rails upon
which the cutting machine 18 to travel and also put up girders across the
line of rails each supported upon a support or supports to uphold the roof
all along the working face and form a protecting 100f for the machine as it
passes along As the machine moves forward it becomes necessary to remove
tom time to time any support there may be next the face of the coal which
would come in the way of the rotating disc cutter of the machine and the
machine itself then supports the guider and 100f instead of the support, it being
80 constructed as to do 80 When the machine has passed, the support can
again be put back in place to support the 100f, for as long a time as may be
desired I also form the cutting machine in such a manner as to give a top sup-
port to the evolving upright shaft which canies the cutter disc or discs so
that the strain on the shaft is not all taken by one neck or bearing at its lower
end. I also form each cutting disc with pockets or receptacles into which
the material cut away by the cutters drops and is carried round
in these
pockets as the outting disc evolves until it has been carried out of the cut
that is being formed and is then dischared at any point where it may be
convenient to discharge it
The machine is constructed to run on nails laid as usual near to and parallel
with the face of the coal which is being worked
A vertical shaft is mounted on that side of the fame of the machine which
18 nearest to the coal face and this axis carries the cutter disc or d1808 The
frame 18 made to extend away from the face of the coal beyond the outer
circumference of the cutter discs and then upwards and over the top of these
discs to carry the top beaning for the cutter shaft—it may also form a com-
plete box or casing for covering in the working parts. The upper part of the
frame also canes slides or bearing surfaces to iest against the roof of the
mine or against ails interposed between them and the 100f
The vertical axis is made to extend upwards to a sufficient height for a disc
cutter carried by it to clear out the highest vein of dirt that there may be in
the coal seam The axis may also carry another disc cutter or cutters to clear
out any other veins of dirt that there may be in the seam. Each cutter disc
carries around its circumference a number of cutter blades. These are secured
to the disc'in such a way as to be readily removable for repairs or renewal.
Other plates are secured to the disc at the base of the cutter blades to

page_text: restrain the dirt which is cut away by the cutters from working inwards
towards the shaft or the disc might be formed with a complete ring around
it to effect the same object
The dirt cut away by the cutters collects in the pockets or spaces between
them and 18 called 1ound in these pockets At the point where the cuttei
comes out of the coal face the dut in the pockets is brought on to a metal
plate fixed to the frame of the machine and is supported on this plate until
it 18 brought 1ound to any point at which it is advantageous to discharge it
A guard plate 18 also provided to keep the dirt from passing away outwards
from the pockets until the point is reached at which the dut 18 to be dis-
charged.
Foi driving the cutter discs I employ preferably an electric motor or motors,
these may also be arranged to give a slow revolving motion to a banel to cause
it to wind on to itself a rope to diaw the machine slowly forwards as the cutter
discs are revolved
It will be seen from the above description that the machine is not intended
for under cutting or indeed for cutting coal at all although it may be used for
that purpose but for scooping out the dut between the beds
When the dnt is scooped out I may in some cases use slides or guides to
deliver the coal automatically into wagons and when necessary I may support
the coal after the dut 18 removed until such time as the wagon and slide can
be put into a position to receive it
Dated this 23rd day of December 1898
CARPMAEL & Co,
Agents for the Applicant
COMPLETE SPECIFICATION
Improvements in Coal Getting and in Machinery used for this
Purpose.
I, LORD MASHAM, of Swinton, Masham, Yolks, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement:―
At the present time there are numerous inventions and patents for coal cut-
ting, but so far without much result, as they are only used in seams with good
and strong roofs and then only to a very limited extent
To overcome the difficulties hitherto experienced I according to this inven-
tion after the working face has been prepared by the colliers lay down 1ails upon
which the cutting machine is to travel and also it may be put up guders across the
line of nails each supported upon a support or supports to uphold the 100f
all along the working face and form a protecting 1oof for the machine as it
passes along As the machine moves forward it becomes necessary to remove
fiom time to time any support there may be next the face of the coal which
would come in the way of the notating dise cutter of the machine and the
machine itself then supports the guder and 100f instead of the support, it being
20 constructed as to do so When the machine has passed, the support can
again be put back in its place to support the roof, for as long a time as may be
desired. I also for in the cutting machine in such a manner as to give a top sup-
port to the revolving upright shaft which canies the cutter disc or discs so
that the strain on the shaft is not all taken by one neck or bearing at its lower
end. I also form each cutting disc with pockets or receptacles into which
the material qut away by the cutters drops and 18 carried ound in these
pockets as the cutting disc revolves until it has been carried out of the cut

page_text: that is being formed and 18 then discharged at any point where it may be
convenient to discharge it.
The machine.18 constructed to run on rails laid as usual near to and parallel
with the face of the coal which is being worked
A vertical shaft 18 mounted on that side of the frame of the machine which
18 nearest to the coal face and this axis carries the cutter disc or discs The
frame is made to extend away from the face of the coal beyond the outer
circumference of the cutter discs and then upwards and over the top of these
discs to carry the top bearing for the cutter shaft-it may also form a com-
plete box or casing for covering in the working parts The upper part of the
fame also carries slides or bearing surfaces to rest against the roof of the
mine o against rails inter posed between them and the roof
The vertical axis is made to extend upwards to a sufficient height for a disc
cutter carried by it to clear out the highest vein of dirt that there may be in
the coal seam The axis may also carry another disc cutter or cutters to clea
out any other veins of dut that there may be in the seam. Each cutter disc
Carries around its circumference a number of cutter blades These are secured
to the disc in such a way as to be readily removable for repaus or renewal
Other plates are secured to the diso at the base of the cutter blades to
restrain the dirt which is cut away by the cutters from working inwards
towards the shaft or the disc might be formed with a complete 1ing around
it to effect the same object
The dut cut away by the cutters collects in the pockets or spaces between
them and is carried round in these pockets At the point where the cutter
comes out of the coal face the dirt in the pockets is brought on to a metal
plate fixed to the frame of the machine and is supported on this plate until
it is brought 1ound to any point at which it is advantageous to discharge it
A guard plate is also provided to keep the dnt from passing away outwards
from the pockets until the point is reached at which the dut is to be dis-
charged.
For driving the cutter discs I employ preferably an electric motor or moto18,
these may also be arranged to give a slow revolving motion to a barrel to cause
it to wind on to itself a rope to draw the machine slowly for wards as the cutter
discs are revolved
It will be seen from the above description that the machine is not intended
for under cutting or indeed for cutting coal at all although it may be used for
that purpose but for scooping out the dut between-the beds
When the dnt 18 scooped out I may in some cases use slides or guides to
deliver the coal automatically into wagons and when necessair I may support
the coal after the dirt is removed until such time as the wagon and slide can
be put into a position to receive it
The drawings annexed show a machine constructed as above described
Figure 1 is a front end view Figure 2 a sectional end elevation Figure 3 a
longitudinal section, and Figure 4 a plan with the upper part of the frame
removed Figure 5 18 a plan of the cutter wheel
In the drawings the coal to be obtained is marked B and layers of dirt which
separate the layers of coal are marked A Care rails carried by sleepers laid down
on the floor of the mine just in front of the face of coal that is being worked
D is the frame of the machine supported on wheels which bear upon the rails
EE are circular cutting wheels mounted upon a vertical shaft F In Figures 1,2
and 3 it is shown how this shaft is supported in bearings both at top and
bottom by the frame of the machine the fame being made to extend beyond
the outer circumference of the cutters and then upwards and over the top to
carry the-top bearing for the cutter shaft and form a protecting 100f for all
the working parts of the machine Gare supports extending upwards from the
top of this roof and kept bearing against rails interposed between them and
the roof of the mine. Each cutter wheel is provided with a ring H of rack

page_text: teeth on its under side into each of which a worm I on a shaft I 18 made to
gear. The uppermost shaft is at each of its ends diven through bevel wheel
geaning by a pair of electric motors K-these electric motors both give motion
through bevel gearing to a shaft L from which through other bevel gearing
motion 18 transmitted to the shaft I. Each shaft L has also upon it a toothed
wheel L this gears with a coi responding wheel L below it and from the axes
of these wheels L' motion is tiansmitted through bevil wheel geaning to the
lower shaft I and also from one of them through geaning to a crank which
gives a to and fro movement to a lever aim carrying a pawl M which gives a
step by step revolving motion to a bariel N to cause it to wind on to itself a
1ope to draw the machine slowly forwards
The cutters of the cutter wheels are as will be seen held in sockets O, spaces
or pockets being left between the sockets in which the material removed by
the cutters collects and 18 carried round to the point where they pass out from
the groove they are cutting At this point the dirt or material is brought on
to plates P indicated by dotted lines in Figure 2 and is supported on these
plates until it is allowed to drop away and be discharged through orifices pro-
vided for the purpose in the back portion of the flaming
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
1
1. A coal cutting machine having a cucular cutter or cutters carried on a
vertical shaft and having the frame of the machine so formed as to give support
both to the upper and lower ends of this shaft.
2. A coal cutting machine having a cucular cutter or cutters carried on a
vertical shaft and having the frame of the machine so formed as to give support
both to the upper and lower ends of this shaft and also form a protecting roof
for the various working parts of the machine
3 The construction of coal cutting machines substantially as herein before
described and illustrated in the drawings annexed.
Dated this 9th day of October 1899.