Improvements in Submarine Blasting.
Year: 1890

page_text: Date of Application, 16th Apr., 1890
Complete Specification Left, 15th Jan., 1891-Accepted, 21st Feb., 1891
PROVISIONAL SPECIFICATION.
Improvements in Submarine Blasting.
We THEODOR PUSKAS and IVÁN SCHLENKER Manufacturers both of Budapest
in the Empire of Austria-Hungary do hereby declare the nature of this invention
to be as follows:-
This invention relates to submarine blasting and the object of the improvement
to to obviate the necessity or great advantage of borings in the object to be blasted.
We have found that by means of a simple lowering and placing of the charge on
the object to be blasted an extraordinary effect can be obtained if above the
blasting cartridge some sufficiently substantial body is arranged to serve as an
obstruction against the upward force of the explosion. The shape of this body may
be varied it may be dome shaped, semi-dome shaped, bell shaped etc.,, the only
object being to constitute a mechanical obstruction against such force of the
explosion as is directed upwards.
This body is made of suitable weighty material (preferably of steel or iron) and
of proper strength.
When bell or like shape is given to the said body the latter is open below and
the blasting cartridge is arranged within the same being prevented from falling
out by transverse wires.
If however the body has the shape of a disc then the cartridge is suspended
below the body in a suitable manner. Whatever shape the body may have the
same has an opening in the centre (with the dome shape in the centre of the crown)
into which the fuse is inserted the said fuse being shut in by a cap. This cap is
provided with two perforations, so that the wires carrying the electric current may
be inserted into the tube of the fuse.
The body should have also a flange at its crown or centre to which the lowering
line may be fastened. The body with its blasting cartridge suspended below or
within it is lowered from the operating boat by means of a windlass and after this
has been done and the boat is moved off the electric current is sent from there
through the wires to the blasting cartridge.
The downward action of the explosion is increased considerably since the upward
force of the explosion is obstructed by the body which forms thus a mechanical
obstacle upon which rests the weight of the respective so to speak collected and
tensioned water column above it.
Dated this 16th day of April 1890.
HERBERT & Co.,
Agents to Applicants.
COMPLETE SPECIFICATION.
Improvements in Submarine Blasting.
We, THEODOR PUSKÁS and IVÁN SCHLENKER, both of Budapest, in the
Empire of Austria, 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 relates to submarine blasting and the object of the improvement
is to obviate the necessity or great disadvantage of borings in the object to be
blasted. We have found that by means of a simple lowering and placing of the
charge on the object to be blasted an extraordinary effect can be obtained, if above
the blasting cartridge some sufficiently substantial body is arranged, to serve as an
obstruction against the upward force of explosion.

page_text: The shape of this body may be varied, it may be dome-shaped, semi-dome-shaped,
bell-shaped etc. The only object being to constitute a mechanical obstruction
against such force of the explosion as is directed upwards.
In the accompanying drawing a conical bell shaped body is represented
Fig. 1 being a side elevation,
Fig. 2 a vertical central section,
Fig. 3 a plan and
Fig. 4 a horizontal section on line x a Fig. 1 thereof..
This body A is made of suitable weighty material (preferably of steel or iron)
and of proper strength. When a bell or like shape is given to the said body, the
latter is open below, and the blasting-cartridge B is arranged within the same,
being prevented from falling out by transverse wires threaded through holes a in the
lower flange of the bell A. If however the body has the shape of a disc, then the
cartridge is suspended below the body in a suitable manner. Whatever shape
the body may have, the same has an opening in the centre (with the dome shape in
the centre of the crown) into which the fuse is inserted, the said fuse being shut in
by a cap C. This cap is provided with a perforation, so that the wires D carrying
the electric current may be inserted into the tubes of the fuse. The body A
should have also a flange E at its crown or centre, to which the lowering line may
be fastened. The body A with its blasting cartridge B suspended. below or within
it is lowered from the operating boat by means of a windlass and after this has been
done and the boat is moved off, the electric current is sent from there through the
wires D to the blasting cartridge.
The downward action of the explosion is increased considerably since the upward
force of the explosion is obstructed by the body A, which forms thus a mechanical
obstacle, upon which rests the weight of the water above it. The body A. is there-
fore not only in itself an obstacle, but it causes the blasting charge when exploding
to simultaneously attack all the quantity of water located above the body.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The improvement in submarine blasting, consisting in arranging a body
immediately above the blasting charge B, which body obstructs the upward motion
of the action of the exploding force and thereby increases the downward action of
the explosion.
2. The improvement in submarine blasting consisting in supporting the charge
in or under a massive body having a central opening for the fuse discharging wires
and a flange for attachment of lowering apparatus, lowering said body to rest upon
the object to be destroyed previous to exploding the charge.
Dated this 15th day of January
1001
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents for the Applicants.