IMPROVE- MENTS IN WINNING OR GETTING COAL, AND IN APPARATUS OR APPLIANCES THEREPOR.
Year: 1875

page_text: LETTERS PATENT to George Dingley, junior, of Lower Ince, near
Wigan, in the County of Lancaster, Engine Fitter, and William
Ackers, of the same Place, Miner, for the Invention of "IMPROVE-
MENTS IN WINNING OR GETTING COAL, AND IN APPARATUS OR APPLIANCES
THEREPOR.
"
PROVISIONAL SPECIFICATION left by the said George Dingley and
William Ackers at the Office of the Commissioners of Patents,
with their Petition, on the 16th December 1875.
We, GEORGE DINGLEY, junior, of Lower Ince, near Wigan, in the
County of Lancaster, Engine Fitter, and WILLIAM ACKERS, of the same
Place, Miner, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN WINNING OR GETTING COAL, AND IN APPARATUS OR APPLIANCES
THEREFOR," to be as follows:-
The object of our Invention is to facilitate the winning or getting of
coal from its natural bed by breaking down after under cutting, or by
breaking out from the solid, and to do so by simple and efficient hand
apparatus or appliances, dispensing with cumbrous power machines and
the danger, inconvenience, and expense of blasting. For these purposes.

page_text: a hand drilling machine is employed to bore a deep hole in the coal, and
afterwards a breaking-down tool or appliance is used, which latter after
being inserted in the drilled hole in the coal is caused to expand or open
by the action of a long wedge, driven thereinto by repeated blows from a
hand hammer, and force the coal from its bed.
The framework of the drilling machine is provided with screws or like
means for securing it between the floor and roof of the mine in the
desired position. Toothed wheels or other gearing are carried on the
framing, and a handle is attached to one of the wheels or its shaft to
cause them to rotate. One of the wheels encircles the drilling bar or
rod, and imparts rotary motion to it. The said drilling bar carries a
cutting tool, preferably one to eut an annular groove at front, and the
bar and tool are fed forward during rotation by a screwed thread on a
sleeve surrounding the bar and entering an exterior sleeve.
The expanding tool or appliance is made in two or more, two are pre-
ferred, pieces, forming exteriorly when placed' together a circle in trans-
verse section, and are of about the length of the drilled hole. They are
so formed as to be easily passed into the drilled' hole. In the interior of
the said pieces are grooves to receive a long wedge, which latter is
driven by blows into the two or more pieces, and their expansion effected
so as to break down or break out the coal, as above indicated.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Dingley and William Ackers in the Great
Seal Patent Office on the 15th June 1876.
'
!
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE 2
DINGLEY, junior, of Lower Ince, near Wigan, in the County of Lan
caster, Engine Fitter, and WILLIAM ACKERS; of the same Place, Miner;
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of December; in the 3
year of our Lord One thousand eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her: heirs and suc-
cessors, give and grant unto us, the said George: Dingley, junior, and
William Ackers, Her. special licence that we, the said George Dingley,

page_text: junior, and William Ackers, our executors, administrators, and assigns,
or such others as we, the said George Dingley, junior, and William
Ackers, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after 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 Inven-
tion for "IMPROVEMENTS IN WINNING OR GETTING COAL, AND IN APPARATUS OR
APPLIANCES THEREFOB," upon the condition (amongst others) that we,
the said George Dingley, junior, and William Ackers, our executors or
administrators, by an instrument in writing under our, 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.
NOW KNOW YE, that we, the said George Dingley, junior, and William
Ackers, 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 accompanying Sheet of illustrative Drawings, and to the figures
and letters marked thereon, that is to say :-
The object of our Invention is to facilitate the winning or getting of
coal from its natural bed by breaking down after under cutting, or by
breaking out from the solid, and to do so by simple and efficient hand
apparatus or appliances, dispensing with cumbrous power machines, and
the danger, inconvenience, and expense of blasting. For these purposes.
a hand drilling machine is employed to bore a deep hole in the coal, and
afterwards a breaking down tool or appliance is used, which latter after
being inserted in the drilled hole in the coal is caused to expand or open
by the action of a long wedge, driven thereinto by repeated blows from
a hand hammer, and force the coal from its bed.
The framework of the drilling machine is provided with screws or like
means for securing it between the floor and roof of the mine in the
3 desired position. Toothed wheels or other gearing are carried on the
framing, and a handle is attached to one of the wheels or its shaft to
cause them to rotate. One of the wheels encircles the drilling bar or
rod and imparts rotary motion to it. The said drilling bar carries a

page_text: cutting tool, preferably one to cut an annular groove at front, and the
bar and tool are fed forward during rotation by a screwed thread on a
sleeve surrounding the bar and entering an exterior sleeve.
The expanding tool or appliance is made in two or more, two are
preferred, pieces, forming exteriorly when placed together a circle in
transverse section, and are of about the length of the drilled hole.
They are so formed as to be easily passed into the drilled hole. In
the interior of the said pieces are grooves to receive a long wedge,
which latter is driven by blows into the two or more pieces, and their
expansion effected so as to break down or break out the coal, as above
indiented

page_text: In the presence of
JAMES JOHNSON,
Patent Office,
Clayton Square,
Liverpool.
GEORGE DINGLEY, JN³. (L.S.)
WILLIAM ACKERS.
(L.S.)