Gas Vessels or High Pressure Gas Reservoirs.
Year: 1896

page_text: Date of Application, 3rd Nov., 1896
Gas Vessels or High Pressure Gas Reservoirs.
I WALTER CLEMENT TYLER Optician 48 and 50 Waterloo Road London in
the County of Surrey do hereby declare the nature of this invention to be as
follows:-
Whereas metallic vessels or gas reservoirs have and are made with parallel walls
or sides, the nature of my invention is to provide such vessels or reservoirs capable
of standing a considerable higher internal pressure without materially increasing
their weight or decreasing their internal capacity. My invention consists in
manufacturing such vessels or reservoirs with concentric corrugations over all the
length of the vessels such form being well known by engineers to offer a considerable
greater resistance to pressure and tensile strength than straight surfaces.
In order to carry out my invention I avail myself of vessels with parallel sides
as already in the market, but before their apex is closed up to form a bottle neck
shape to insert a valve. Into the said vessels or cylinders I insert a mandrill or
core filling up the whole of the internal part of the vessel or reservoir, the said
mandrill or core is formed of longitudinal segments, with a centre core tapered so
to be easily extracted when the work is completed. When all the segments are
joined together to form a solid mandrill, the outside surface of the said mandrill is
corrugated over all its length each corrugation being concentric and parallel to the
next around the mandrill which is introduced inside the gas vessel or reservoir,
the vessel or reservoir being forged or pressed on its outside surface by means of
corresponding dies in such a manner as to reproduce all along the vessel or reservoir
the corrugations on the mandrill or core.
Having now described the nature of my invention, I do not claim any process
of manufacture metallic gas vessels or reservoirs with parallel sides or walls, but
I claim the invention to manufacture such vessels with corrugations as here
described.
Dated this Second day of November 1896.
WALTER CLEMENT TYLER,
48, 50 & 94 Waterloo Road, London, S.E.
IWALTER CLEMENT TYLER Optician 48 and 50 Waterloo Road London in
the County of Surrey 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 :-
Whereas metallic vessels or gas reservoirs have and are made with parallel walls
or sides, the nature of my invention is to provide such vessels or reservoirs capable
of standing a considerable higher pressure without materially increasing their
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page_text: weight or decreasing their capacity. My invention consists in manufacturing such
vessels or reservoirs with concentric corrugations over all the length of the vessels,
such a form being well known by engineers to offer a considerable greater resistance
and tensile strength than straight surfaces.
In order to carry out my invention I avail myself of the vessels with parallel
sides as already in the market, but before their apex is closed up to form a bottle
shaped neck to insert a valve. Into the said vessel or reservoir I insert a mandrell
or core filling up the whole of the internal part of the vessel or reservoir, the said
mandrell or core is formed of longitudinal segments, with a centre core tapered so
to be easily extracted when the work is completed. When all the segments are
joined together to form a solid mandrell the outside of which is corrugated over all
its length and each corrugation being concentric and parallel to the next around
the mandrell which is introduced inside the gas vessel or reservoir the said vessel
or reservoir being forged or pressed on its outside surface by means of corresponding
dies in such a manner as to reproduce all along the surface of the vessel or reservoir
the corrugations on the mandrell.
I will now describe my mode of manufacture with more complete details, referring
to the accompanying drawings.
Fig. 1 shows a longitudinal section of the mandrell, Fig. 2 a cross section of the
same showing the form of the different segments and core, such a mandrell can be
cast or forged of any suitable metal, but for greater convenience I prefer it to be
made of cast iron, the said castings of suitable dimensions to allow it to be finished
smoothly on its surfaces to the accurate size it is desirable the inside of the vessel
or reservoir should be in its finished state, I also prefer black leading all the surfaces
of the mandrell to avoid any risk of its adhering to the vessel during the process
of operation.
Fig. 3 is a section of a vessel or reservoir before it being closed up at its apex in
a bottle shaped neck form.
In order to carry out my invention I cause this cylinder to be heated to the most
convenient beat and insert the mandrell into it. When the cylinder and its internal
mandrell are brought between two dies each forming half the circumference of the
mandrell, the said dies similarly corrugated, but each corrugation of a somewhat
larger and deeper dimension to allow for the thickness of the metal of the cylinder
with parallel walls. The operation of forging, pressing, or swaging the vessel by
means of dies as per Fig. 44 and Fig. 4 may be carried on by means of circular or
flat dies causing the cylinder to be rolled between them under the necessary pressure.
After the operation of pressing the corrugations over the surface of the parallel
cylinder the central tapered core of the mandrell is withdrawn when the different
segments constituting the mandrell will become loose and casily extracted, the now
corrugated vessel or reservoir will require to be closed up in the usual form adopted
as shewn in Fig. 5B and Fig. 5, such a shape being obtained by means of swaging
with suitable dies or by means of suitable pressure.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that I
claim
The manufacture of such vessels or reservoirs with corrugations as here
described.
Dated this Third day of December 1896.
WALTER CLEMENT TYLER.