IMPROVEMENTS IN MACHINERY EMPLOYED WHEN GETTING COAL, STONE, AND OTHER MINERAL
Year: 1864

page_text: LETTERS PATENT to James Grafton Jones, of No. 58, Cumming Street,
Pentonville, in the County of Middlesex, Engineer, for the Invention
of "IMPROVEMENTS IN MACHINERY EMPLOYED WHEN GETTING COAL, STONE,
AND OTHER MINERAL."
Sealed the 14th June 1864, and dated the 1st February 1864.
PROVISIONAL SPECIFICATION left by the said James Grafton Jones
at the Office of the Commissioners of Patents, with his Petition, on
the 1st February 1864.
I, JAMES GRAFTON JONES, of No. 53, Cumming Street, Pentonville, in
the County of Middlesex, Engineer, do hereby declare the nature of the
Invention for "IMPROVEMENTS IN MACHINERY EMPLOYED WHEN GETTING COAL,
STONE, AND OTHER MINERAL," to be as follows:-
This Invention has for its object improvements in machinery employed
when getting coal, stone, and other mineral.
For these purposes, the bearings of the axis of the pick or picks are mounted
on a cylinder which is capable of being turned in suitable bearings fixed on
the bed of the truck or carriage of a compressed air engine, which it is
preferred should be a trunk engine, but such form of engine is not essential.
The connecting rod where it is attached to the piston of the trunk engine is
arranged to turn so that when the crank axis carrying the pick is turned to
a different position in respect to the tram or railway on which the carriage or
truck moves, the connecting rod may follow the crank, and at all times be in

page_text: a position to work correctly therewith. On the cylinder which carries the
axis of the pick there is a toothed wheel which is driven by a pinion or screw
on a shaft, having on it a hand wheel by which the position and proper angle
at which the pick shall for a time work is readily adjusted. The cylinder of
the engine, in place of being fixed to the fixed bed of the truck or carriage,
is mounted and fixed to a separate bed plate, and such bed plate is arranged to
turn on the fixed bed plate of the carriage or truck by which the cylinder of
the engine may, when desired, be for a time fixed in a line more or less
inclined to the line of way on which the carriage or truck moves, and at other
times be fixed in a parallel line with the way on which the truck or carriage
moves.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Grafton Jones in the Great Seal Patent Office on
the 80th July 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
GRAFTON JONES, of No. 53, Cumming Street, Pentonville, in the County of
Middlesex, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the First day of February, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said James Grafton Jones, Her special licence that I, the said James
Grafton Jones, my executors, administrators, and assigns, or such others as
I, the said Jamės Grafton Jones, my 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 EMPLOYED WHEN GETTING COAL, STONE, AND OTHER
MINERAL," upon the condition (amongst others) that I, the said James
Grafton Jones, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the 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.

page_text: NOW KNOW YE, that I, the said James Grafton Jones, do hereby
declare the nature of the said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by the
following statement thereof, that is to say:-
"
This Invention has for its object improvements in machinery employed
when getting coal, stone, and other niineral.
For these purpose the bearings of the axis of the pick or picks are mounted
on a cylinder which is capable of being turned in suitable bearings fixed on
the bed of the truck or carriage of a compressed air engine, which it is pre-
ferred should be a trunk engine, but such form of engine is not essential.
The connecting rod, where it is attached to the piston of the trunk engine, is
arranged to turn so that when the crank axis carrying the pick is turned to a
different position in respect to a tram or railway on which the carriage or
truck moves the connecting rod may follow the crank, and at all times be in a
position to work correctly therewith. On the cylinder which carries the axis
of the pick there is a toothed wheel which is driven by a pinion or screw on a
shaft having on it a band wheel by which the position and proper angle at
which the pick shall for a time work is readily adjusted. The cylinder of the
engine in place of being fixed to the fixed bed of the truck or carriage, is
mounted and fixed to a separate bed plate, and such bed plate is arranged to
turn on the fixed bed plate of the carriage or truck, by which the cylinder of
the engine may, when desired, be for a time fixed in a line more or less
inclined to the line of way on which the carriage or truck moves, and at other
times be fixed in a parallel line with the way on which the truck or carriage
moves.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe to manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a back end view of a machine constructed according to my
Invention; Figure 2 shows a longitudinal section showing the pick in a
position for making the horizontal cut; Figure 3, a side elevation of the
machine, the pick being in the position for making a vertical cut; Figure 4
shows a front end view; and Figure 5 shows a plan of the machine. In each
of these Figures the same letters indicate similar parts.
a, a, is the cylinder of the engine, which it is preferred should be worked with
compressed air when used in coal mines and other confined places, but steam
may be employed in open places and where the heat will not be an objection.
The cylinder a is shown in the Drawings to be fixed to the bed plate of the

page_text: carriage, but in some cases it will be desirable that it should be mounted on a
moveable bed on the carriage, so as to admit of the position of the cylinder
being changed in respect to the direction of the line of way on which the
carriage is moved. In the Drawings the engine is what is called a trunk
engine, which is the form of engine preferred, but other constructions may be
employed in place thereof provided that suitable arrangements be applied for
connecting the piston or piston rod with the crank or pick axis- to admit the
position of such axis being changed from time to time as may be required
to vary the direction of the action of the pick. 6 is the piston; c is the
connecting rod, which is attached to the piston in such manner as to allow of
its being turned round, as will readily be understood by examining the Drawings;
d is the axis to which the lever pick e is affixed; f is an arm on the axis, to
which one end of the connecting rod is pin jointed; 9, 9, are bearings of the
axis d'which are carried by the cylinder h which is capable of being turned in
bearings ii, carried.. by the bed plate of the carriage, but the manner of
mounting the bearings of the axis d may be varied, so long as they and the
axis can be placed and worked in varied positions and the piston of the engine
connected to the axis so as to drive the same in its varied positions. I however
prefer the arrangement shown for carrying the bearings of the axis d and for
giving motion to such axis in its varied positions; j is a hand wheel for
giving motion to the shaft k, and the hand wheel is capable of being locked in
different positions by a pin which is passed through one of the holes through
such wheel, as shown; or the retaining of the hand wheel and its shaft in any
desired position may be otherwise, accomplished; is the slide valve by which
1
the compressed air or steam or other fluid employed to work the engine is
admitted to and allowed to pass away from the cylinder. This valve is
worked by the piston when completing its back stroke striking against the
rod m which works through a stuffing box n; in the back cover of the
cylinder o is a lever which is at one end connected with the rod m in the
manner shown, in order that there may be a slight freedom or play between
the end of that rod and the end of the lever. The other end of this lever is
attached to the rod of the slide valve, as shown; p is a spring or elastic pad of
vulcanized india-rubber, or it may be of other suitable elastic material; g is a
handle by which the slide valve is worked in one direction. The forward
movement of the carriage is obtained as heretofore by a hand wheel r and
gearing, as shown in the Drawings.
Figure 6 shows a vertical section of the principal parts of another carriage
and engine_suitable for carrying out my Invention by which the piston rod
and piston are caused to turn when the crank axis d (carrying the pick) is

page_text: caused to assume a different position. In this arrangement the outer end of
the piston rod, which is fixed to the piston in the ordinary manner, is forked or
made in two parts in each of which part there is a slot x. The end of a
cranked arm y on the shaft & comes between the two parts or fork at the end
of the piston rod. The pin passes through the cranked arm and enters the
slots in the forked or double end of the piston rod. The bearings and
cylinder h, carrying the crank axis d, are caused to move round the bearing as
before described, when the position of the axis d is to be changed and in con-
sequence of the arm being between the forked end of the piston rod that rod
and the piston thereon will be caused to turn when the cylinder carrying the
axis or shaft d is turned. The parts shown in this Figure are marked with
the same letters of reference as are used in the previous description, and such
description is applicable to the present arrangement.
Having thus described the nature of my Invention and the manner of
performing the same, I would have it understood, that I make no claim to
any of the mechanical parts separately, but I claim the combined arrangements
herein described.
. In witness whereof, I, the said James Grafton Jones, have hereunto
hand and seal, this 22nd day of July, in the year of our Lord
One thousand eight hundred and sixty-four.
my
J. GRAFTON JONES. (L.S.)