Escaping Gas or vapour.
Year: 1886

page_text: Date of Application, 12th Aug., 1886.
Complete Left, 12th May, 1887.
Complete Accepted, 14th June, 1887
Escaping Gas or vapour.
We, CHARLES VERNON BOYS, of 7 Dorset Square, Professor of Physics, and HENRY
HARDINGE CUNYNGHAME, of Hurlingham Lodge, Fulham, both in the County of
Middlesex, Barrister-at-Law, do hereby declare the nature of our invention to be
as follows:-
Our invention relates to apparatus for reducing or preventing the noise of gas or
vapour issuing with force from restricted apertures such as the exhaust pipes of gas,
steam, air or other engines, and is designed to prevent or materially reduce such noise
in a simple and efficacious manner.
Our apparatus consists of a circular chamber into which the blast of escape is allowed
to enter tangentially, and the vessel may have its internal diameter gradually
increased beyond the point of admission, so as to reduce the velocity of the revolving
current.
The ultimate issue of the escaping steam, gas, air or vapour, is taken through a pipe
leading from the centre of the vortex and preferably at its point of lowest velocity.
We may produce the tangential entrance of the steam, air, gas or vapour, into the
chamber by simply bending an admission pipe into the required form within the
chamber.
Or, we have found that the device arranged as a centrifugal steam cleanser and
separator, patented to us under No. 13987 and dated 16th November 1885 will,
admirably fulfil the purpose of this invention, though for cheapness, we prefer to con-
struct our present device of much lighter material, and omit or modify many parts of
the before patented device which would be unnecessary or unsuitable for the present,
application.
DL: 19th day of AM 1886
:
FELL & WILDING,
Agents for the Applicants.

page_text: We, CHARLES VERNON BOYS, of 7 Dorset Square, Professor of Physics, and HENRY
HARDINGE CUNYNGHAME, of Hurlingham Lodge, Fulham, both in the County of
Middlesex, Barrister at Law, 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:
Our invention relatos to apparatus for reducing or preventing the noise of gas or
vapour issuing with force from restricted apertures, such as the exhaust pipes of gas,
steam, air, or other engines, and it is designed to prevent or materially reduce such
noise in a simple and efficacious manner.
In order that our invention may be the better understood, we now proceed to describe
the same in relation to the drawings hereunto annexed, reference being had to the
letters and figures marked thereon. Like letters refer to like parts throughout the
figures.
Figure 1 is a vertical section of one form of our device.
Figure 2 is a plan of same through the line X X, showing the tangential inlet.
Figure 3 is a vertical section of a modified form.
Figure 4 is a transverse section of same.
Our apparatus consists of a circular chamber A, into which the blast of escape is
allowed to enter tangentially, and the vessel may have its external diameter gradually
increased beyond the point of admission, as in figure 1, so as to reduce the velocity of
the revolving current.
The ultimate issue of the escaping steam, gas, air, or vapour is taken through a
pipe B leading from the centre of the vortex, and preferably at its point of lowest
velocity.
We may produce the tangential entrance C of the steam, air, gas, or vapour into
the chamber by simply bending an admission pipe into the required form within the
chamber.
Or, we have found that the device arranged as the centrifugal steam cleanser and
separator, patented to us under No. 13987 and dated the 15th of November 1885, will
admirably fulfil the purpose of this invention, though for cheapness we prefer to con-
struct our present device of much lighter material and to omit many parts of the
before patented device which would be unnecessary or unsuitable for the present
application, such for instance-as the internal vanes and the external gauge glass.

page_text: In the modified form shown in figures 3 and 4, we construct the covers D of
precisely the same size, so that they are interchangeable and the exhaust exit may be
put on either side, as may be found convenient to suit circumstances.
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 :-
:-
1st. The construction of a quietening chamber into which the steam or other gas is
led tangentially, where it creates a vortex, and is led off at the point of lowest rotation
by means of an exit connected to the said chamber, substantially as and for the
purposes described.
2nd. The specific construction of the said quietening chamber either to produce a
horizontal or vertical vortex, the last form permitting of interchangeable covers,
substantially as and for the purposes described
Dated this 12th day of May 1887.
FELL & WILDING,
1, Queen Victoria Street, London, E.C.,
Agents for the Applicants.
FELL & WILDING,
1, Queen Victoria Street, London, E.C.,
Agents for the Applicants."