AN IMPROVED APPARATUS BAD “WINNING" OR DOCK by כם. ATMORDEDIC DRECQIRI FOR WINNING" COAL OR ROCK BY HYDRAULIC OR ATMOSPHERIC PRESSURE
Year: 1882

page_text: LETTERS PATENT to Edmond Warre M.A. and Thomas Wilson Salmon both of
Eton in the County of Bucks for an Invention of AN IMPROVED APPARATUS
BAD
“WINNING"
OR DOCK by
כם.
ATMORDEDIC
DRECQIRI
PROVISIONAL SPECIFICATION left by the said Edmond Warre and Thomas
Wilson Salmon at the Office of the Commissioners of Patents on the
1st December 1882.
EDMOND WARRE M.A. and THOMAS WILSON SALMON both of Eton in the
County of Bucks AN IMPROVED APPARATUS FOR WINNING" COAL OR ROCK
BY HYDRAULIC OR ATMOSPHERIC PRESSURE
"
The object of this Invention is an improved apparatus to be inserted into a tamp
hole or into a fissure of coal or rock in order to win or get the coal or rock by the
expansion of an envelope or expansible casing of the apparatus under the influence
or action of liquid or air forced into it by a pump.
For the purpose of our Invention we form a hollow stem with a head at each
end with apertures at right angles to that of the stem and radii therefrom. The
radial apertures terminate in a reduced annular portion of the two heads. The
ends of the two heads are covered by a cup of leather, India rubber or any elastic
material the mouths of which look towards each other and form the chamber in
which the expansion takes place. We fix the cups in position by collars and
screw nuts.
In some cases we cover the space between the cups by rubber ferrules the edges
of which we prefer to overlap to ensure a perfect lap joint and to prevent the
water or air escaping therefrom.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Edmond Warre & Thomas Wilson Salmon in the Great Seal
Patent Office on the 1st June 1883.
33
EDMOND WARRE M.A. and THOMAS WILSON SALMON both of Eton in the
County of Bucks. AN IMPROVED APPARATUS FOR "WINNING COAL OR ROCK BY
HYDRAULIC OR ATMOSPHERIC PRESSURE
The object of this invention is an improved apparatus to be inserted into a tamp
hole or into a fissure of coal or rock in order to win or get the coal or rock by the
expansion of an envelope or expansible casing of the apparatus under the influence
or action of liquid or air forced into it by a pump.
For the purpose of our invention we form a hollow stem A with a head B at
each end with apertures CC at right angles to that of the stem A and radii
therefrom. The radial apertures terminate in a reduced annular portion D of the
two heads B B. The ends of the two heads are covered by cups E E of leather
india rubber or any elastic material the mouths of which look towards each other
and form the chamber in which the expansion takes place. We fix the cups E E
in position by collars F F and screw nuts G G.
Connected to our winning apparatus is a tube G₁ for conveying the water or air
to the chamber H and we fit another tube L of smaller diameter to take off the
pressure of air when inserting the plug the air then escaping into the chamber M of
the socket N.
In some cases we cover the space H between the cups E E by a rubber ferrule I
as shown in Figure 1 of the annexed drawing.
In Figure 2 we dispense with the ferrule I and lengthen the cups E E the
edges J K of which we prefer to overlap to ensure a perfect lap joint and to
prevent the water or air escaping therefrom.
Figure 3 shows the application of our improved apparatus for winning coal or
rock by hydraulic or atmospheric pressure.
Having now described the nature of our said invention and in what manner the
same is to be performed we declare that we claim.
The improved apparatus for winning coal or rock by hydraulic or atmospheric
pressure as described and substantially as shown in the annexed drawings.
In witness whereof wo the said Edmond Warre and Thomas Wilson Salmon
have hereunto set our hands and seals this thirtieth day of May in the
year of our Lord One thousand eight hundred and eighty three.
EDMOND WARRE
(LS)