Improvements in Flugs for COCKS and Apparatus.
Year: 1889

page_text: Date of Application, 26th Aug., 1889
Complete Specification Left, 26th June, 1890-Accepted, 9th Aug., 1890
Improvements in Flugs for COCKS and
Apparatus.
We WOLF DEFRIES of 4 Cleveland Gardens, London, Gentleman, and VICTOR
ISIDORE FEENY of 7 Queen Victoria Street, London, Consulting Engineer, do hereby
declare the nature of this invention to be as follows:-
Our Invention relates to improvements in plugs and is specially applicable to cocks,
joint pins, and similar contrivances.
It consists in substituting for the ordinary plug, union, or pin one or more split
spring liners of such a section that when compressed so as to enter the orifice into
which they are to fit they assume a circular section corresponding to that of the
orifice or projection. When two or more liners are used, they are made of such
relative sections that one will fit within the other, the splits in the one liner being
opposite a solid part of the other. When wear occurs between the liners and the
joint or socket in which they move the spring of the liners will cause the liners to
expand to an extent sufficient to take up the wear.
In applying our invention to a cock we preferably bore the shell or body with a
parallel hole which we close at the underside with a plate. Into the chamber so
formed we introduce our liner or liners furnished with apertures corresponding to the
inlet and outlet. The top of the chamber is then closed with a solid plate. In the
body or shell one or more horizontal slots are cut at points below the top of the liner
or liners through which pins fixed to the liner or liners project. By means of these
pins, engaging in projections from the ordinary key of the cock or operated in any
other suitable way, the liners are caused to revolve. Where only one liner is used the
extent of its revolution must be so arranged that its split never comes opposite the
horizontal slot in the body. We may alternatively operate the liners by means of a
stem passing through the body of the cock, at the bottom of which it is riveted or
secured by a nut, and engaging in any suitable way with the liners. In this case
the top or bottom plates or both may be left free to revolve with the stem, it being
preferable that a conical shape be given to the surfaces of contact between the plates
and the shell or stein.
In the application to a joint-pin the liner or liners take the place of the pin and by
means of a slot extending partly round the liners in which moves a pin projecting
from the moving portion of the joint or by means of a slot in the moving portion of
the joint and a pin working in it and rigidly connected with the liners the relative
motion of the liners and joints are equalized, so that the wear is uniform throughout
the entire length of the joint.
We may make our liners of steel, gun metal, or any suitable material.
COMPLETE SPECIFICATION.
Improvements in Plugs for Cocks and other Articles and
We WOLF DEFRIES of 4
ISIDORE FEENY of 7 Queen
hereby declare the nature of
Apparatus.
Cleveland Gardens, London, Gentleman, and VICTOR
Victoria Street, London, Consulting Engineer, do
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 relates to improvements in plugs, and is especially applicable to
cocks and to joint pins of every description and to similar contrivances.

page_text: арис
liners of such a section that when compressed so as to enter the orifice into which
they are to fit they assume on the outside a circular section corresponding to that of
the orifice. When two or more liners are used they are made of such relative
sections that one will fit within the other, the splits in the one liner being preferably
opposite a solid part of the other.
Upon the accompanying Sheet of Drawings:-
Figure 1. is a section through a cock having a liner constructed and applied
according to our Invention.
Figure 2. is a section of a moving joint fitted with our improved liner.
Figure 3. is a longitudinal section through a liner having coned or bell-mouthed
ends, and
Figure 4. is a diagram illustrating the method of construction of an elastic liner,
exercising approximately equal pressure at all points of its circumference when
compressed and fitted within a suitable orifice.
Similar letters of reference indicating similar parts in each of the Figures respectively.
A is the chamber or orifice into which the liner is to be fitted.
B the elastic liner or liners, b aperture in liner.
Ca pin or pins or stud or studs for actuating same.
Da slot or slots or opening or openings in liner through which the actuating
projection moves.
E the body or shell of a cock, e horizontal slot.
F top plate for same.
G tee, cap, or key for operating plug.
In applying our invention to a cock (see Figure 1) we preferably furnish the
liner or liners B with apertures b corresponding to the inlet and outlet, and with
studs or pins C or with recesses in which projections from the key G of the cock
or any other suitable appliance may engage. The liner or liners B so furnished are
inserted into the shell of the cock, which may be bored with a parallel hole and
closed at the underside, and after the liner or liners have been inserted the top of the
chamber is also closed with a solid plate F. Where studs or pins from the liner are
used suitable vertical slots may be provided in the shell of the cock, which is provided
as shown with one or more horizontal slots e through which project the studs or
pins C of the liner engaging with projections from the key G or other appliance and
enabling it to cause the liner to revolve. When only one liner is used the extent of
its revolution must be so arranged that its split cannot come opposite the slot or slots
in the body of the cock while the inlet orifice is open. The cock may be bored with
a taper hole if desired, as shewn in the Drawing, the liners being in that case made
of similar form.
In the application to a joint pin (see Figure 2) the liner or liners take the place of
the pin and can be secured by a Hange, by a bolt passing through the centre, by
bell-mouthing one or both ends (as at Figure 3), or in any suitable way. In the
case of a moving joint in which the wear is likely to be appreciable and the usual
stroke of the joint is sufficiently determined, we prefer to regulate the relative motion
of the liner or liners and the joint so that the liner or liners are constrained to move
during one part of the stroke and remain at rest during the other part, the wear on
the fixed and moving parts of the joint and on the liner or liners themselves being
thereby equalised. For this purpose we either provide the liner with a pin or projec-
tion which works in a slot of limited extent in the moving part of the joint, or we
place a similar pin Cor projection on the moving part of the joint which works within
a similar slot D, of limited extent in the liner or liners B.
When wear occurs in moving joints, in cocks, etc. between the liners and the joint
or chamber in which they move, the elasticity of the liners will cause the liners to
expand to an extent sufficient to take up the wear, and the tendency to do this will in
itself delay the wear. Where in fast joints a permanent fit is required which will
prevent the plug from shifting through oscillation or otherwise, the elasticity of the
plug will tend to effect the purpose.

page_text: In such cases as it is important to obtain an approximately uniform pressure at all
points of the plug, we make the thickness at each point of which the movement
during compression is sufficiently appreciable inversely proportional to the square
root of the distances through which the point travels when the liner compressed to
fit the orifice. The liners may be split vertically or diagonally, and may be made of
steel, gun metal, or any other suitable material."
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
1. In cocks, joints, and similar contrivances, plugs consisting of one, or more split
elastic liners substantially as described.
2. Split elastic liners for cocks joints and similar contrivances of such section that
the thickness at each point of which the movement during compression is sufficiently
appreciable is inversely proportional to the square root of the distance through which
the point travels when the liner is compressed so as to fit the orifice for which it is
intended, as described and illustrated in the diagram Figure 1 of the Drawing.
3. In combination with a cock closed at the underside and provided with a slot, a
split elastic liner or liners provided with projections or recesses engaging in projec-
tions from a tee, or otherwise suitably operated for the purposes substantially as
described and illustrated Figure 2 of the Drawing.
4. In combination with a joint fitted with one or more pins or slots in its moving
parts one or more split elastic liners fitted with slots or pins for the purposes and
substantially as described and illustrated Figure 3 of the Drawing.
Dated this Twenty-sixth day of June 1890.
For the Applicants,
W. E. GEDGE,
Agent.