IMPROVEMENTS IN COAL MINING MACHINERY
Year: 1867

page_text: PROVISIONAL SPECIFICATION left by Charles Jones at the Office
of the Commissioners of Patents, with his Petition, on the 10th May
1867.
I, CHARLES JONES, of the Firm of John Jones and Sons, of William Street
Iron Works, Liverpool, in the County of Lancaster, Engineer, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN COAL MINING
MACHINERY," to be as follows:-
My improvements consist,-
First, in an improvement on the rails described in the Specification of an
Invention for which I obtained Letters Patent, No. 2708, of date the 19th
October 1866, and in wheels to run thereon or work therewith. I form the
said rails with teeth like a toothed rack; and construct the whole or a portion
of the width of the bearing wheels or other wheels connected with the machine
with teeth to gear into those on the rails, and thereby prevent the machine
from moving backwards or forwards when at work.
Secondly, in making coal mining machines arranged to run on rails con-
structed according to the above first part of my Invention self-feeding. For
this purpose I employ a ratchet wheel or wheels and impulse pallet or pallets
on the axle of the carrying wheels or other part, & operate these by a recipro-
cating lever or other mechanism connected to any convenient working part of
the macliine.

page_text: Thirdly, in employing with the rails described and shewn in the Specification
of my said Invention patented as aforesaid on the 19th October 1866, and also
with rails constructed according to the above first part of my Invention, double
or single acting screw or other jacks as means for jamming the rails between
the floor and roof of the mine.
Fourthly, in novel means for carrying, holding down, and keeping up to their
work coal mining machines generally. I employ one or more, I prefer two,
steel or other tubes, rails, or bars raised from the ground by framework supporting
them at their ends. The said tubes, rails, or bars pass through the framework
or other part of the machine, and the machine is made to travel thereon
automatically or otherwise.
Fifthly, in a novel arrangement_of_arms_or_levers and cutters to plane or
pare away coal or other mineral so as to form deep shallow channels or grooves
therein. The arms or levers are jointed on or to framework which projects
laterally from the machine, and they are operated by reciprocating motion from
the engine, the connection being made to the said arms or levers between their
free cutting ends and the joints, or at the back of the said joints. The said
arms or levers are connected by links, and the cutters act both in the outwards
and return stroké, cutting the face of the channel or groove in radii corresponding
to the sweep on or from the said joints.
The arrangement of the parts of machines for carrying this fifth part of my
Invention into effect may be variously modified. As instances I mention (a)
that the arms or cutters may work through underneath the rail and cut a
channel or groove at the lowest part of the seam; (b) that the machine may
be made to swivel; and (c) that a worm on the crank shaft may work into a
toothed wheel carrying a crank, which can be coupled to the arms or cutters
to operate them.