An Improvement in Lime Cartridges for Breaking-down Coal, Rock,.. and other Minerals.
Year: 1893

page_text: Date of Application, 4th Dec., 1893
Complete Specification Left, 24th Aug., 1894-Accepted, 29th Sept., 1894
PROVISIONAL SPECIFICATION.
An Improvement in Lime Cartridges for Breaking-down Coal, Rock,..
and other Minerals.
I MILES SETTLE of Darcy Lever in the County of Lancaster, Colliery
Proprietor, do hereby declare the nature of this invention to be as follows:-
This invention applies to that class of cartridges employed for breaking-down
coal, rock, and other minerals known as "lime cartridges wherein the rending
action on the coal or other mineral is produced by the admission of water to the
compressed lime contained in the cartridge.
According to my invention I compress the lime into the cylindrical cartridge so-
as to leave a hole extending down through the centre of the lime, or nearly so,.
whereby the water is introduced at once into about the centre of the lime and thus
the distribution of the water through the entire mass of lime is much more rapid
even, and equal than hitherto, and the action of the cartridge in rending the coal'
or other mineral is rendered more certain and effective than that of the lime
cartridges hitherto employed. I further propose to put in the hole instead of, or
as well, as, water, acids, which will improve the generation of gases which in.
addition to the pressure from the lime will help the rending of the minerals.
Dated this 2nd day of December 1893.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.
COM LEIE DI BOLTICATION.
An Improvement in Lime Cartridges for Breaking-down Coal, Rock,.
and other Minerals.
I MILES SETTLE of Darcy Lever in the County of Lancaster, Colliery
Proprietor, 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 applies to that class of cartridges employed for breaking-down
coal, rock, and other minerals known as "lime cartridges" wherein the rending.
action of the coal or other mineral is produced by the admission of water to the
compressed lime, the latter swelling or increasing rapidly in bulk by the absorption
of the water and thus rending asunder the coal or other mineral.
The nature of my said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference.
to the annexed sheet of drawings and the following explanation thereof.
Fig. 1 is an end view shewn in section and Fig. 2 a side elevation shown partly
in section showing the application of my invention to a lime cartridge in its.
simplest form.
According to my invention I compress the lime into the form of a cylindrical
cartridge a so as to leave a hole extending down through the centre of the
lime from one end to the other (or nearly so), whereby the water is introduced
at once into about the centre of the lime, and thus the distribution of the water.
through the entire mass of the lime is much more rapid, even, and equal than.
hitherto, and the action in reading the coal or other nineral is rendered more.
certain and effective than that of the solid lime cartridges hitherto employed.

page_text: In addition to the central hole, I sometimes make longitudinal shallow grooves
or channels, as shown at c Fig. 3, on the outside of the lime, in order to facilitate
the simultaneous access of the water to the outside of the cylinder.
I further propose to put in the hole instead of, or as well as water, acids
which will improve the generation of gases which, in addition to the pressure
caused by the swelling of the lime will assist in the rending of the minerals.
. Having now particularly described and ascertained the nature of my said
invention and in what manuer the same is to be performed I declare that what I
.claim is :-
:-
The improvement in lime cartridges employed for breaking-down coal, rock, and
other minerals, consisting in forming the cylinder of compressed lime hollow, that
is, with a central hole extending through the entire length thereof or nearly so,
either with or without the external grooves herein before mentioned, for the purpose
of facilitating the access of the water (or acidulated water) simultaneously to both
the inside and outside of the lime cylinder substantially as and for the purposes
hereinbefore more particularly set forth and described.
Secondly I claim the use in connection with such cartridges of acid or acidulated
water to increase the generations of gases and thus assist in the rending of the
minerals.
Dated this 23rd day of August 1894.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicant.