RESERVE CO Air, Water, or other Fluid for Various Purposes.
Year: 1887

page_text: Date of Application, 31st Oct., 1887
Complete Specification Left, 28th July, 1888
Complete Specification Accepted, 7th Sept., 1888
RESERVE CO
Air, Water, or other Fluid for Various Purposes.
We, JAMES ANDERSON, of 100 Clyde Street, Glasgow, in the County of Lanark,
North Britain, Engineer, and ROBERT MCKINNELL, of 56 Dundas Street, South,
Glasgow, aforesaid, Engineer, do hereby declare the nature of this Invention to be as
follows, that is to say :-
Our said Invention relates to apparatus of the kind and for the purposes described
in our Patent Specification No. 3801 of 1886; and our object is to improve tho
construction of such apparatus and especially to render the same more conveniently
and satisfactorily adjustable without liability to leak.
In apparatus of the kind referred to the steam or compressed air, or other motive
fluid issues from an annular orifice which is at one end of an annular chamber made
of a shape to offer little or no obstruction to the fluid operated on and which passes
both on the inner and outer side of it.
According to our present Invention we make the annular orifice for the motive
fluid conical with the outer part of smaller or larger diameter than the inner part.
The chamber is made of two pieces of metal and the outer side of the jet orifice is
made in the outer chamber piece which has attached to it the pipe by which the steam
or other motive fluid is supplied to the chamber. The inner side of the jet orifice is
formed on one end of the inner chamber piece; and the other end of the inner chamber
piece is screwed externally to be screwed into an internal screw formed in the
corresponding end of the outer chamber piece. The inner chamber piece is entered
into its place from one end or the other of the outer chamber piece accordingly as the
conical jet orifice is made with its outer part of the smaller or larger diameter. The
size or area of the jet orifice is varied or adjusted by screwing the inner chamber piece
more or less into the outer chamber piece; and when adjusted the parts are made
quite tight by means of a jam nut. To ensure the outer and inner chamber pieces
being as concentric as possible a part of the outer piece is bored cylindrically to fit
and slide on a corresponding cylindrical part of the inner piece.
Dated this Twenty-ninth day of October 1887.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Inducing or Producing Currents of
Air, Water, or other Fluid for Various Purposes.
We, JAMES ANDERSON, of 100 Clyde Street, Glasgow, in the County of Lanark,
North Britain, Engineer, and ROBERT MCKINNELL, of 56 Dundas Street, South,
Glasgow, aforesaid, Engineer, 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 relates to apparatus of the kind and for the purposes described
in our Patent Specification No. 3801 of 1886; and our object is to improve the
construction of such apparatus and especially to render the same more conveniently
and satisfactorily adjustable without liability to leak.
In apparatus of the kind referred to the steam or compressed air, or other motivo
fluid issues from an annular orifice which is at one end of an annular chamber
made of a shape to offer little or no obstruction to the fluid operated on and which
passes both on the inner and outer side of it.
According to our present Invention we make the annular orifice for the motive fluid
conical with the outer part of smaller or larger diameter than the inner part. The
chamber is made of two pieces of metal and the outer side of the jet orifice is mado in
the outer chamber piece which has attached to it the pipe by which the steam or other
motive fluid is supplied to the chamber. The inner side of the jet orifice is formed on
one end of the inner chamber piece; and the other end of the inner chamber piece is
screwed externally to be screwed into an internal screw formed in the corresponding
end of the outer chamber piece. The inner chamber piece is entered into its place
from one end or the other of the outer chamber piece accordingly as the conical jet
orifice is made with its outer part of the smaller or larger diameter. The size or area of
the jet orifice is varied or adjusted by screwing the inner chamber piece more or less
into the outer chamber piece; and when adjusted the parts are made quite tight by
means of a jam nut. To insure the outer and inner chamber pieces being as concentric
as possible a part of the outer piece is bored cylindrically to fit and slide on a corres-
ponding cylindrical part of the inner piece.
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 our improved apparatus.
Figures, 1, 2, and 3, of the accompanying drawings are longitudinal sections of our
improved apparatus, slight variations of minor details being shown in the several
figures.
In our improved apparatus what we term the outer chamber piece, A, is externally
of a barrel-like curved form somewhat similar to the corresponding part in our earlier
specification herein before referred to, and has also cast or formed on it an inlet
branch, B, for the attachment of the pipe, (not shown) by which the motive fluid is
led to the instrument. The instrument may be hold in the position in which it is to

page_text: operate by means of the pipe attached to it. The internal surface of the front edge of
the outer chamber piece, A, forms the outer side of an annular orifice, C, for the issuing
annular jet of motive fluid the inner side of this orifice being formed by the external
surface of the front end of an inner chamber piece, D, which is fixed to the outer
chamber piece, A, so as to be coaxial therewith. The annular orifice, C, is thus made
of a conical form with the outer part smaller in figures, 1, and 2, and larger in
figure, 3, than the inner part. The after part of the inner chamber piece, D, is mado
with an external screw thread, and a counterpart internal screw throad is formed in
the back end of the outer chamber piece, A, and when the inner chamber piece, D,
has been screwed into the desired position in the outer chamber piece, A, a jam
nut, E, is screwed on the inner chamber piece, D, up against the outer chamber
piece, A, to fix the parts as adjusted. The outer and inner pieces, A, D, are shaped
internally and externally, respectively, so as to form an annular chamber, F, into
which the motive fluid enters by the inlet branch, B, and from which it issues through
the annular jet orifice, C.
It is necessary to make the instrument capable of adjustment as regards the size or
area of the jet orifice, C, through which the motive fluid issues. For this purpose the
sides of the orifice, C, are made slightly conical, either with the smaller parts outwards
as shown in figures, 1, and 2, or with the larger parts outwards as shown in figure, 3,
with which construction a longitudinal adjustment of the outer and inner chamber
pieces, A, D, relatively to each other, will render the orifice, C, larger or smaller as
may be required in each case to suit the pressure of the motive fluid or the strength
of current desired to be produced. In the modifications shown in figures, 1, and 2,
the size of the orifice, C, is diminished by screwing the inner chamber piece, D, to
the right, in the modification shown in figure, 3, by screwing the inner chamber
piece, D, to the left. In order to keep the outer and inner chamber pieces, A, D,
concentric, guides are provided in the form of feathers, G, on the outer body and
moving in contact with a part of the inner body as shown in figure, 1; or in the
form of concentric cylindrical surfaces, H, formed on the outer and inner chamber
pieces, A, D, as shown in figures, 2, and 3.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is :-
An improved instrument for inducing or producing currents of fluid by means of
an annular jet of motive fluid under pressure such instrument consisting of an
outer chamber piece externally of a barrel-like form and made with a lateral inlet
for the motive fluid, in combination with an inner chamber piece screwed into one end
of the outer chamber piece and made tubular with the passage through it of curved
section the ends being larger than the intermediato part, the said two chamber pieces
forming between them an annular chamber for the motive fluid and an issue orifice of
a conical annular form substantially as hereinbefore described and as shown on the
accompanying drawings.
Dated this Twenty-seventh day of July 1888.
EDMUND HUNT,
Applicants Agent.