improvements in or relating to Ball and Socket Joints.
Year: 1898

page_text: improvements in or relating to Ball and Socket Joints.
I, EDMUND DAVID BURKITT, 12, St. Leonards Square, Kentish Town, London,
N.W., Builder, do hereby declare the nature of this invention to be as follows:-
This invention consists of improvements in or relating to ball and socket
joints, and consists in providing a valve in one of the sections of the joint so
arranged that when the joint is separated the supply of gas, in the case of a gas
bracket, is cut off. In carrying out my invention I provide a valve which is
arranged in the cup of the joint so that when the ball is placed in the cup the
valve is removed from its seating which allows the gas to pass through the joint
towards the point of consumption. The valve is controlled by a spring of such
strength that when the ball and other parts attached thereto are removed the
spring will close the valve, but the weight of the ball and other parts is sufficient
to open the valve, and also ensure a tight joint between the ball and cup.
Although for purposes of illustration I have described my invention in which
the valve is carried in the cup, it will be readily understood that the valve may
be carried in the ball if required. It will be seen that when it is required to
disconnect the joint it is merely necessary to lift the ball and parts attached
thereto, such as a bracket from the cup when the valve will close and cut off
the supply of gas. By this arrangement a bracket may be removed from one
cup to another according to the position in which the bracket is required to be
used, and in factories and shops this will be found to be advantageous.
Although I have described my invention applied to gas for lighting purposes,
I do not confine myself to this, as there are other uses to which my joint might
be applied without departing from my invention.
Dated thin 7th
.
1000
Improvements in or relating to Ball and Socket Joints.
I, EDMUND DAVID BURKITT, 12, St. Leonards Square, Kentish Town, London,
N.W., Builder, 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:―
This invention consists of improvements in or relating to ball and socket
joints, and consists in providing a valve in one of the sections of the joint so
arranged that when the joint is separated the supply of gas, in the case of a gas
[Price 8d

page_text: bracket or pendant is cut off. In carrying out my invention, I provide a valve
which is arranged in the cup of the joint, so that when the ball is placed in
the cup, the valve is removed from its seating which allows the gas to pass through
the joint towards the point of consumption. The valve is controlled by a spring
of such strength that when the ball and other parts attached thereto are removed,
the spring will close the valve, but the weight of the ball and other parts is
sufficient to open the valve, and also ensure a tight joint between the ball and
cup.
Although for purposes of illustration, I have described my invention in which
the valve is carried in the cup, it will be readily, understood that the valve may
be carried in the ball if required. It will be seen that when it is required to
disconnect the joint it is merely necessary to lift the ball and parts attached
thereto, such as a bracket or pendant from the cup when the valve will close
and cut off the supply of gas. By this arrangement a bracket or pendant may
be removed from one cup to another according to the position in which the bracket
or pendant is required to be used, and in factories and shops this will be found
to be advantageous.
Although I have described my invention applied to gas for lighting purposes,
I do not confine myself to this, as there are other uses to which my joint might
be applied without departing from my invention.
For purposes of illustration I will now refer to the annexed drawings in
which:
-
Figure 1, is a sectional elevation shewing the parts forming the joint detached.
Figure 2, sectional elevation shewing the parts forming the joint when in posi-
tion or engagement.
Figure 3, side elevation to reduced scale shewing my invention in position.
Figure 4, plan view of Figure 2.
Figure 5, side elevation shewing a pipe provided with a series of cups and
valves.
Referring to Figures 1 and 2, the cup e is provided with the valve f which
is maintained against the seating by means of the spring g which bears upon
the carrying socket piece i. This cup e is secured on the required pipe in any
convenient manner, such as by means of the screw thread h. The valve f is
of a size to project as shewn into the cup. The ball a is provided with perfora-
tions d which communicate with the passage b, and to this ball a the required
article, such as a bracket or pendant, is secured by means of the screw thread c
or other suitable arrangement. The weight of the parts, that is to say the
ball and bracket etc., and the strength of the spring 9 are in such relation to
one another that when the ball a and the required bracket or pendant is placed
in the cup e the spring g is overcome and the valve f is thus opened. At the
same time a joint is formed between the ball a and the cup e. By this arrange-
ment it will be seen that in the case of a pipe as shewn in Figure 5 having
a series of cups and valves arranged thereon, a bracket or pendant may be placed
in the required position, that is to say, the ball a carrying the bracket or pendant
may be removed from cup to cup as required. When the ball a is removed
from the cup e, the spring g raises the valve f and so closes the aperture to the
passage of the gas.
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 ball and socket joints; the combined construction and arrangement of
the various parts substantially as described and illustrated herein and for the
purpose set forth.
F
2. In ball and socket joints; the employment of a valve controlled by a spring;
said valve being carried in one or other of the two sections forming the joint,

page_text: and being so arranged that when the sections forming the joint are together
the valve is opened for the purpose of allowing the passage of gas to the required
place of consumption; said spring closing the valve aforesaid when the sections
forming the joint are separated one from the other.
Dated this 7th day of September 1899.