Improvements in Vessels for Containing Compressed or Rarefiled Air or Gas.
Year: 1893

page_text: Date of Application, 17th June, 1893
Complete Specification Left, 15th Mar., 1894-Accepted, 9th June, 1894
PROVISIONAL SPECIFICATION.
Improvements in Vessels for Containing Compressed or Rarefiled
Air or Gas.
We, STEPHEN ALLEY, and JOHN ALEXANDER MACLELLAN, of Sentinel
Works, Polmadie, in the County of Renfrew, North Britain, Engineers, do hereby
declare the nature of this invention to be as follows, that is to say :-
Our said invention has for its object the construction of vessels for containing
compressed or rarefied air or gas in an improved manner and so as whilst economical
in cost, to be durable, not liable to internal corrosion, and generally convenient in
application or use.
In carrying out our invention we make a vessel for the purpose indicated, of
cast iron and in halves, each of which is in the form of a large cup having conical
sides and a curved bottom or end. The halves are bolted together by flanges
formed on their edges, the joint being made airtight in any convenient way, as, for
example, by means of a ring of lead, or rubber, or other suitable compressible
material held in grooves in the flange faces. The interior of the vessel is galvanised
or protected by any suitable coating, and apertures for connecting pipes are
provided at the ends. For some purposes the reversed conical forms of the halves
of the vessel are advantageous as they allow of the vessel being secured in position
by a pair of metal straps or rings, without liability to move endways.
Dated this Fifteenth day of June 1893.
EDMUND HUNT,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in Vessels for Containing Compressed or Rarefied
Air or Gas.
We, STEPHEN ALLEY, and JOHN ALEXANDER MACLELLAN, of Sentinel
Works, Polmadie, in the County of Renfrew, North Britain, Engineers, 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, that is to say :-
Our said invention has for its object the construction of vessels for containing
compressed or rarefied air or gas in an improved manner and so as whilst economical
in cost to be durable, not liable to internal corrosion, and generally convenient in
application or use.
In carrying out our invention we make a vessel for the purpose indicated, of
castiron and in halves, each of which is in the form of a large cup having a curved
bottom or ead. The halves are bolted together by flanges formed on their edges,
the joint being made airtight in any convenient way, as for example, by means of
a ring of lead, or rubber, or other suitable compressible material held in grooves
in the flange faces. The interior of the vessel is galvanised or protected by an
suitable coating, and apertures for connecting pipes are provided at the ends.
And in order that our said invention and the manner of performing the same
may be properly understood we hereunto append a sheet of explanatory drawings,
to be hereinafter referred to and showing a vessel, for containing compressed or
rarefied air or gas, as made with our improvements.

page_text: Figure, 1, of the drawings is a longitudinal vertical section of our improved
vessel, Figure, 2, being an elevation, as at right angles to Figure, 1, of one half of
the same.
Figures, 3, and, 4, are sections showing modifications of the flange joints.
In these drawings the same reference letters are used to mark the same or like
parts wherever they are repeated.
As shown in the drawings we make a vessel, A, for the purpose indicated, of
castiron and in halves, each of which is in the form of a large cup having conical
sides and a curved bottom or end. The halves are bolted together by flanges, B,
formed on their edges the joint being made airtight in any convenient way, as for
example, by means of a ring, C, of lead, or rubber, or other suitable compressible
material held in grooves in the flange faces, as shown in Figures, 1, and, 2. In
the modifications shown in Figures, 3, and, 4, the ring, C, of lead or rubber, or
other suitable material is held in a groove or recess in one flange, B, and compressed
by a projection, D, on the other flange. The interior of the vessel, A, is galvanised
or protected by any suitable coating, and apertures, E, for connecting pipes (not
shown) are provided at the ends. For some purposes the reversed conical forms
of the halves of the vessel, A, are advantageous as they allow of the vessel being
secured in position by a pair of metal straps, F, without liability to move endways;
the sides may however be made with less taper than as shown or even cylindrical.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
An improved vessel for containing compressed or rarefied air or gas, made in
halves each of which is in the form of a large cup having a curved bottom or end
substantially as hereinbefore described.
Dated this Fourteenth day of March 1894.
EDMUND HUNT,
Applicants' Agent.