Improvements in Valves for Corrosive and other Fluids.
Year: 1890

page_text: Date of Application, 21st Aug., 1890
Complete Specification Left, 30th Jan., 1891-Accepted, 7th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Valves for Corrosive and other Fluids.
I, THOMAS YOUNG, of 27, St. Vincent Place, Glasgow, in the County of Lanark,
North Britain, Engineer, do hereby declare the nature of this invention to be as
follows, that is to say:―
My said invention has principally for its object to provide improved valve
mechanism for pipes through which corrosive fluids have to pass; the improved
mechanism may also be used with non-corrosive fluids.
In carrying out my invention I make the pipe, or the part of it to which the
valve mechanism is to be applied, of rubber, vulcanised or not according to
circumstances, or of any other suitable flexible material or combination of
materials not injuriously or rapidly acted on by the fluid that has to pass through
it. The rubber or material of the pipe is moulded or formed with a flange by which
it is attached to a metal plate, which plate may serve for fixing the end of the pipe
to a vessel or piece of apparatus. The pipe is made of an oval or elliptical section
near the plate from which part the form gradually merges into a round section.
The plate has hinged upon it on opposite sides of the pipe two metal palms made
with concave inner surfaces, and connected by a bridle and screw by means of
which their outer ends can be drawn together, so as to close the pipe by compressing
its sides together. The concave bearing surfaces of the palms are shaped so as to
fit the outside of the pipe when it is in a closed state so that the compressing
pressure may be distributed over as large a surface as possible, and so that the
material of the pipe may not be subjected to any unnecessary strain.
Dated this Twentieth day of August 1890.
EDMUND HUNT,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in Valves for Corrosive and other Fluids.
I, THOMAS YOUNG, of 27, St. Vincent Place, Glasgow, in the County of Lanark,
North Britain, 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 :-
My said invention has principally for its object to provide improved valve
mechanism for pipes through which corrosive fluids have to pass; the improved
mechanism may however also be used with non-corrosive fluids.
In carrying out my invention I make a pipe, or the part of it to which the valve
mechanism is to be applied, of rubber, vulcanised or not according to circumstances
or of any other suitable flexible material or combination of materials not injuriously
or rapidly acted on by the fluid that has to pass through it; and the closing of the
passage through the pipe is effected by compressing it between a pair of metal
palms which are combined with other parts so as to form an improved combination of
mechanism.
And in order that my said invention and the manner of performing the same may
be properly understood, I hereunto append a sheet of explanatory drawings to be
hereinafter referred to and representing my improved valve mechanism or closing
device.
Figure, 1, of the drawings is an elevation with the pipe to which the closing
device is applied, in a vertical position. Figures, 2, and, 3, are vertical sections as
at right angles to each other, showing the passage open. Figure, 4, is a horizontal

page_text: section; and Figure, 5, is a vertical section showing the passage closed. In these
drawings the same reference letters are used to mark the same or like parts
wherever they are repeated..
In the drawings the closing mechanism is shown as applied to a short length of
rubber pipe, A, having attached to its upper end a coupling, B, for connecting to
it another length of piping. The rubber or material of the pipe, A, is moulded or
formed with a flange, C, by which it is attached to a metal plate, D, which plate
may serve for fixing the end of the pipe, A, to a vessel or piece of apparatus. The
pipe, A, is made of an oval or elliptical section near the plate, D, from which part
the form gradually merges into a round section. The plate, D, has hinged upon it,
on opposite sides of the pipe, A, two metal palms, E, F, made with concave inner
surfaces, and connected by a bridle or pair of arms, G, jointed to one. E, of them
and resting on lugs, H, on the other F. To the ends of the bridle arms, G, there
is fixed a cross bar, J, which has tapped through it a screw spindle, K, having a
hand wheel, L, on its outer end. The inner end of the screw spindle, K, bears in a
depression in the outer side of the palm, F, and when the screw spindle is turned in
. one direction it draws the palms, E, F, together and makes them compress the
pipe, A, so as to close it or partially close it as may be required. The concave
inner bearing surfaces of the palms E, F, are shaped so as to fit the outside of the
pipe, A, when it is in a closed state, so that the compressing pressure may be
distributed over as large a surface as possible, and so that the material of the pipe
may not be subjected to any unnecessary strain.
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 what I
claim is :-
As a valve for corrosive or other fluids, a pipe of flexible material such as rubber,
having fixed to a flange on it a plate to which are hinged a pair of palms connected
by a bridle and screw spindle, the parts being constructed, arranged and operating
substantially as hereinbefore described.
Dated this Twenty-ninth day of January 1891
EDMUND HUNT,
Applicant's Agent.