IMPROVEMENTS IN THE CONSTRUCTION OF VALVES
Year: 1885

page_text: I.THOMAS ANGAS WHEATLEY of 130 Great Suffolk Street, Southwark, in the
county of Surrey, Engineer do hereby declare the nature of my invention for
"IMPROVEMENTS IN THE CONSTRUCTION OF VALVES" and in what manner the
same is to be performed to be particularly described and ascertained in and by
the following statement:-
This invention relates to improvements in the construction of valves and has
for its object to construct and arrange the valve and its fittings in such a manner
that if from any cause the valve sticks or becomes fast, or gets out of repair
while in use, it can be eased while under pressure, and so released without dis-
turbing the fittings, or it can be removed entirely from its casing, and refitted
without disturbing or breaking any of the joints of the pipe.
In my improved construction of valves I form on one side of the body of the
ordinary valve casing a flange having a flat surface in which is formed an
aperture of such size and shape as to admit of the introduction of the valve, and
a releasing or easing nut, through which the valve spindle passes. By actuating
this nut the valve can be released should it have become fixed.
I will now proceed to describe my improvements in detail, reference being
made to the accompanying drawings in which Figure 1, is a longitudinal section;
Figure 2, a plan; and Figure 3, an end elevation. Similar letters refer to similar
parts in all of these figures.
On one side of the body of the ordinary valve casing is formed the flange A, of
suitable shape, having a flat surface. An aperture is formed therein, which may
be of the shape shown at B, B¹. The valve is placed in the part marked B, and
when moved forward into its seating the part marked B¹, is occupied by the
releasing nut C.. On the face A, is fitted a cover plate D, secured by bolts in the
usual way, and having a packing strip of india rubber or suitable material,
between it and the surface A,, as shown. An aperture is formed in the cover
plate D, recessed on the upper surface as shown, into which aperture the releasing
nut C, is screwed and packed. The releasing nut also acts with the nut E, as a
stuffing box for the valve spindle, and a tight joint is thus formed either with or
without packing.
If the valve should from any cause stick or become fixed, one turn of the
releasing nut C, will ease and release it, and allow of its being moved in the

page_text: required direction, without disturbing the fittings. By removing the cover plate D,
the valve can be taken out, and a new one fitted in its place, without breaking or
disturbing the joints of the pipes.
This releasing nut C, may also be used without the cover plate D, so that the
advantage of being able to release the valve when set fast, may be obtained. In
this case the releasing nut C, would be screwed into the valve casing itself, instead
of into the cover plate as described.
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
(1.) In the construction of valves the combination with the valve of releasing
nut and cover plate, arranged substantially as and for the purposes herein
described.
(2.). In the construction of valves the combination with valve of releasing nut,
arranged substantially as and for the purposes herein described.
b
WAUGH & CHAPMAN,
Agents for Applicant,
70, Chancery Lane, W.O.