Improvements in and relating to Pipe Joints.
Year: 1898

page_text: Date of Application, 9th June, 1898-Accepted, 9th July, 1898
COMPLETE SPECIFICATION.
Improvements in and relating to Pipe Joints.
I, GEORGE BOHN, of Imperial Chambers, Bowlalley Lane, Hull, in the County of
York, Civil 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 :-
My invention relates to sanitary, gas, water and other pipes, and comprises the
improved method of forming the joints thereof hereinafter described.
In making the joints with socket pipes, and more especially those of large diameter,
the cement or other material used is liable to be squeezed out or washed away from
the bottom, and the spigot ends of the pipes frequently fall or sink in the sockets,
whereby the joints are rendered irregular, resulting in the collection of any solid
matter that may be passing through the said pipes and consequently in the
creation of obstructions.
According to my invention I provide a fillet or supporting or packing piece as here-
inafter described, which obviates the above-mentioned defects and ensures the proper
centering of pipes adapted to be connected together by means of spigot and socket
joints.
In the accompanying drawing,
Figure 1 is an end view of a socket pipe made in accordance with my invention,
and
Figure 2 is a vertical central section showing my improved joint.
Like letters indicate corresponding parts throughout the drawing.
b is a
a is the socket end of one pipe and a 18 the spigot end of the adjoining one.
semicircular, or approximately semicircular, fillet or supporting or packing piece on
the inside of the socket a of the pipe and extending half way or thereabouts round the
circumference thereof.
When the pipes are placed in position, the fillet or supporting or packing piece will
be located in the lower half or underside of the joint; it will prevent the cement or
other material used for making the joint from being displaced, will enable a water-tight
joint to be made and will prevent the spigot end of the pipe from sinking or falling
and getting out of centre with the socket end.
The fillets or supporting or packing pieces b may be formed on the sockets of the
pipes, or they may be made of cement or of any other suitable material and attached
in any convenient manner to the said sockets, or inserted within the sockets when
making the joints, so as to retain the cement or other material used for forming the
joints in the lower portions of the sockets, and to keep the spigot ends of the pipes
central or approximately so with the socket ends of the said pipes.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is .-
1. The fillet 6 located in the lower part of a pipe joint substantially as and for the
KUTNASA at forth

page_text: 2 In a pipe joint, the combination, with the spigot end of one pipe and the socket
end of the adjoining pipe, of a fillet formed on the inside of the socket end, or inserted
between the lower parts or portions of such pipes, serving to retain the material used
in jointing the pipes and also to retain the spigot end central or in line with the
socket end, substantially as and for the purpose set forth.
3. The improved pipe joint constructed substantially as described and as illustrated
in the accompanying drawing.
4
A. F. SPOONER,
323, High Holborn, London, Agent for the Applicant.