An Improved Joint for Hot Water and other Pipes, to Prevent the Opening and Leakage Caused either by Expansion or Pressure.
Year: 1892

page_text: Date of Application, 30th Apr., 1892
Complete Specification Left, 28th Jan., 1893-Accepted, 22nd Apr., 1893
PROVISIONAL SPECIFICATION.
An Improved Joint for Hot Water and other Pipes, to Prevent the
Opening and Leakage Caused either by Expansion or Pressure.
BRIDGMAN RUSSELL 42 Berwick Street, Oxford Street, London, W. Heating
and Ventilating Engineer, do hereby declare the nature of this invention to be as
follows:-
The gland ring is made in two or more pieces which when placed together form
a complete circle, instead of in one casting as in all other makes of india rubber
joints for hot water pipes and connections. Ears are cast on to the segments made
either to butt, lap, or hinge. On the face of segments of gland a projecting
rib is cast to fit into the socket end of pipe or connection. The spigot end of pipe
or connection is cast with a complete bead or projection around same as on the
spigot end of an ordinary caulked joint pipe and in the case of a cut length a
wrought or cast ring is fixed on to the cut end. The socket end of pipe or connec-
tion is cast with 2 or more ears on as on the rubber joint pipe and a recess with
shoulder at bottom as in the ordinary caulked joint pipe. To make the joint an
india rubber or asbestos ring is sprung over the bead or metal ring on the spigot
end, then the spigot is placed in the socket and next the gland ring in segments is
placed around the pipe in front of socket with the projecting bead entering same
at back of rubber ring, the fixing bolts are next passed through or over ears of
gland ring and through ears on socket and the action of tightening up the nuts on
same presses the projecting bead on segments of gland ring against the rubber or
asbestos ring which cannot be pushed back any further on account of bead or metal
ring on spigot, and thus spreads out against side of socket all round and makes the
joint. The gland ring cannot fall to pieces after being placed in position on account
of the fixing bolts, and the projecting bead being between the outside of spigot end
of pipe and inside of socket it is kept in position; and the spigot end of pipe cannot
draw out of the socket either by expansion, or pressure, as the bead or metal ring
on spigot end, will not pass through the gland ring, which when fixed becomes
practically the cover & part of the socket.
Dated this 30th day of April 1892.
BRIDGMAN KUSSELL.
COMPLETE SPECIFICATION.
An Improved Joint for Hot Water and other Pipes, to Prevent the
Opening and Leakage Caused either by Expansion or Pressure.
I BRIDGMAN RUSSELL Engineer of 42 Berwick Street Oxford Street London, W.
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:-
The joint as shewn on the accompanying drawing, is as follows:-
Fig. 1a front elevation of gland ring or collar in two sections, but the gland can
be made in a greater number of sections if required.
Fig. 2 a section of gland ring or collar.
Fig. 3 a side elevation of gland ring or collar.
Fig. 4 a front elevation of socket of pipe.
Fig. 5 a section through socket of pipe shewing a section of spigot end of pipe
entering same with a collar on end of spigot which can be cast on, or in the event
of a short or cut length of pipe, a metal collar can be either shrunk, pinned or

page_text: screwed on. The rubber ring or packing which can be of any other suitable
material is shewn between the spigot & socket of pipes.
Fig. 6 an elevation of socket & spigot.
The pipes being placed together as in Figs. 5 & 6, the gland ring or collar
shewn in Figs. 1, 2 & 3 is placed around the spigot end of pipe, with the projecting
rim entering the space between pipe & socket on the top of the packing. The
bolt holes being brought into position, bolts are passed through the holes in the
ears on the pipe, fitted with nuts & washers, and on the nuts being screwed down,
the gland ring is forced into position, being directed by the projecting rim it cannot
fall apart, & presses the rubber or packing tightly up into the socket, thus making
the joint watertight between the spigot end of pipe and the socket in which it is
placed.
Figs. 7 & 8 shew different methods of bolt ears, either lapping one another, or
hinged.
Having now particularly described and ascertained the nature of my said inven-
tion & in what manner the same is to be performed I declare that what I
claim is :-
That the joint can be either quickly made or taken apart.
That when made, the pipes cannot pull apart either by expansion or internal
pressure, thus making a perfectly safe joint.
The gland ring or collar being made in two, or more parts, instead of one casting,
as in the old style, can be put on the pipe, or taken off after the spigot end is placed
in the socket, which enables a solid collar or ring to be on the end of the spigot of
pipe.
Dated this 27th day of January 1893.
TACTAT T