Improvements in Pipe Joints.
Year: 1898

page_text: Date of Application, 1st July, 1898-Accepted, 6th Aug., 1898
COMPLETE SPECIFICATION.
Improvements in Pipe Joints.
I, WILFRED CHARLES HUMPHREY, Civil Engineer, of The Grove, Stradsett,
Downham Market, Norfolk, 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 for improvements in pipe joints, has for its object a means for
connecting drain and other pipes concentrically together while laying and fixing
the series of pipes before the final jointing is effected; to allow pipes not truly
manufactured to be turned to obtain a level invert; to prevent the cement or
other jointing material getting into the pipes when jointing up and avoid the
necessity for raking out and cleaning afterwards and the liability to disturbance
of the pipes before cement has set; and to allow of the pipes being all put together
and when finally in place, the whole of the joints to be completed with cement or
the like at the same time; and consists essentially of a ring of metal or suitable
material of special construction which is placed over the spigot end of one pipe and
within the socket of the adjacent pipe so as to form a connection between the two
sufficient for holding them together while laying or fixing the pipes, the final
jointing up with cement or the like being effected when all are laid or fixed.
In order to more clearly describe this invention, reference is had to the accom-
panying sheet of illustrative drawings, in which Fig. 1 is a part section show-
ing two pipes connected together by means of this invention, Fig. 2 is a perspective
view of a portion of the connecting device, Figs. 3 and 4 are similar views of a
modified construction, and Figs. 5 and 6 are similar views of a still further modified
construction.
Referring first to the arrangement shown in Figs. 1 and 2, a ring A of metal
or other suitable material is stamped or otherwise formed with the spring pieces a a¹
tending to press outwardly or inwardly in each case. The edges of these spring
pieces a a are slightly turned over as shown and the spring pieces a are further
bent over at their sides so that there are no sharp edges to engage with irregu-
larities of the pipe socket and prevent the pipes being turned to obtain the best
invert, or to prevent the spigot end of the pipe with the ring attached being twisted
round during its insertion if found necessary or desirable to make the insertion
easier.
In use, the ring A is forced over the spigot end of the pipe B until it is flush with
the end and the pipe is then inserted into the socket C₁ of the pipe C, the spring
pieces being pressed inwardly thus serving to retain the pipes B, C, in position
while being laid or fixed. A convenient means for attaching the ring A to the
pipe B is by placing a board over the ring and driving it on by means of a mallet

page_text: or hammer. By this means it will be seen that the pipes are held in position con-
centrically with one another and in consequence of the turned over edges of the
spring pieces a there is no resistance to turning the pipes so as to obtain a level
invert owing to irregularities of manufacture.
When the whole series has been laid or fixed the joints are completed by means
of cement or other jointing material, and in combination with the ring A forms
a secure and watertight joint.
It is found in jointing up in the usual way that the cement or the like forces
its way between the ends of the pipes into the interior, necessitating raking out
and cleaning after the joints are completed and involving a liability to disturbance
before the cement has set. In this invention this is obviated as the cement cannot
pass beyond the ring A. Moreover all the joints are completed at the same time
instead of being done as the pipes are placed together.
Instead of the spring pieces a¹ there may be a continuous flange a² as shown
in Figs. 3 to 6 and this may be constructed slightly tapering so as to facilitate
the driving of the ring on the end of the pipe B. The flange a² may also be
bulged outwards slightly at intervals and wedges or pins inserted between it and
the pipe B to further secure the ring thereto. The spring pieces a may be longer
or shorter than the spring pieces a¹ as desired and these latter are of sufficient
strength to grip tightly the pipe B while the former press on the surface of the
socket C. The spring pieces al allow for use with pipes having an enlarged edge.
In the modified arrangement shown in Figs. 3 and 4 the tongues b are cut front
the continuous flange a² and turned downwards. The ring A is forced over the end
of the pipe B as above described until the tongues come in contact with the end
of the pipe. The tongues bare engaged between the pipes B, C. In other respects
the jointing is effected in the manner above described.
In the further modification shown in Figs. 5 and 6 instead of the tongues 6 the
metal is folded over during the construction of the ring A as shown to form the
flange serving the purpose of the tongues b.
In Figs. 2, 4 and 6 the spring pieces a are shown in their outwardly bent positions
before being pressed inwards by the socket C¹ of the pipe C.
Also several ways of cutting out the metal to form the spring pieces a
shown.
are
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) An improved pipe jointing device comprising a ---ring which can be forced
on the spigot end of one pipe and which is provided with spring pieces adapted
to press upon the socket of the other pipe, thus securing the pipes together while
the whole series is being laid or fixed, the joint being then completed by means
of cement or the like, substantially as described and for the purposes specified.
(2) An improved pipe jointing device comprising a
ring A having spring
pieces a a¹, the said ring A being forced over the spigot end of one pipe and then
into the socket of the other pipe, thus securing the pipes together whilst the whole
series is being laid or fixed, the joints being then completed by means of cement
or the like, substantially as described with reference to Figs. 1 and 2 of the draw-
ings and for the purposes specified.
(3) An improved pipe jointing device comprising a ring A having spring
pieces a, and tongues b cut from the flanges a³, the ring A being forced over the
spigot end of one pipe and then into the socket of the other pipe, thus securing
the pipes together while the whole series is being laid, or fixed the joints being then
completed by means of cement or the like, substantially as described with refer-
ence to Figs. 3 and 4 of the drawings and for the purposes specified.
(4) An improved pipe jointing device comprising
ring A having spring
pieces a a¹ and a flange c, the said ring A being forced over the spigot end of
one pipe and then into the socket of the other pipe, thus securing the pipes together

page_text: while the whole series is being laid or fixed the joints being then completed by
means of cement or the like, substantially as described with reference to Figs. 5
and 6 of the drawings and for the purposes specified.
Dated this 30th day of June 1898.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.