An Improved Pipe Joint, specially suitable for Sanitary Purposes.
Year: 1897

page_text: Date of Application, 11th Feb., 1897
Complete Specification Left, 10th Nov., 1897-Accepted, 1st Jan., 1898
PROVISIONAL SPECIFICATION.
An Improved Pipe Joint, specially suitable for Sanitary Purposes.
We, THOMAS CHARLES PETER JENKINS of 34 Fitzwilliam Road, Sanitary
Engineer, and CHARLES FREDERICK ARCHER, of 1 Gauden Road, Engineer, both
of Clapham, in the County of Surrey, do hereby declare the nature of this inven-
tion to be as follows:-
This invention, which we call the "A. J." sanitary joint, has for its object to
enable a joint to be made which while thoroughly effective can yet be made in
such a manner that it is extremely simple, and producible at a low first cost.
It involves the use of a taper or dove-tailed socket, or a taper or dove-tailed
spigot; in either case the principle is the same, so that the one being described
the other will be understood.
Upon the article, such as a closet basin, to which the pipe is to be attached, is
formed a socket, the interior of which is dove-tailed in such manner
that its lesser diameter is slightly larger than the collar of the
metallic or other pipe which is to be connected to it; while the hole
in the basin is considerably smaller than the diameter of the collar.
Thus the collar and end of the pipe can be inserted in the socket and
butted against the side of the basin. The part of the pipe immediately behind
the collar is screwed externally, and beyond this a projecting part of the pipe
extends, to which another pipe may be attached in any suitable and convenient
manner, With the screwed part of the pipe engages the threads of an internally
screwed collar, one end of which is round and of a diameter sufficiently small to
just enter the socket, while its outer end is smaller and preferably polygonal in
shape so as to allow the collar to be screwed up when the polygonal parts engage
with the jaws of a spanner or the like. The round end of the collar is tapered in
such manner that a rubber or other resilient ring inserted between the taper end
of the collar and the flange of the pipe, is squeezed outwards against the interior
of the socket when the collar is screwed up, thus forming a good joint.
The rubber or other packing ring is of a hexagonal section, the inside pressing
against the screwed part of the pipe, the outside against the interior of the socket,
one end against the flange of the pipe, the other end against the taper end of the
collar, and the fifth and sixth sides being more or less squeezed into the spaces
between the collar and the interior of the socket.
Where the converse arrangement is made, the collar is screwed externally into
the socket, and the packing ring is pressed up against the end of the spigot which
is dove-tailed or tapered for that purpose.
Instead of being screwed, the socket may have a helical groove into which fits
a projection on the nipple or collar, this serving when turned the purpose of the
screw.
Dated this 11th day of February 1897

page_text: An Improved Pipe Joint, specially suitable for Sanitary rurposes.
We, THOMAS CHARLES PETER JENKINS, of 34 Fitzwilliam Road, Sanitary
Engineer, and CHARLES FREDERICK ARCIIER; of 1 Gauden Road; Engineer, both
of Clapham, in the County of Surrey, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:
This invention, which we call the A. J. sanitary joint, has for its object to enable
a joint to be made, which while thoroughly effective, can yet be made in such a
manner that it is extremely simple, and producible at a low first cost.
T:
It involves the use of a socket, preferably tapered or dovetailed, or a taper or
dovetailed spigot; in 'either case the principle is the same.
In order to enable our invention to be more clearly understood we have annexed
hereto drawings, in which:-
Fig. 1 shews our improved pipe joint applied to a closet pan, partly in section.
Fig. 2 is an enlarged view of the flush water pipe joint in section.
Referring to Fig. 1. A indicates the soil pan, having a spigot B at its, lower
end. C is a nipple surrounding the spigot, and upon this nipple is formed a male
screw. F is a socket on the upper end of the soil pipe, the lower end of which
socket is preferably dovetailed,, and is provided with a female screw upon its upper
part. E is a rubber or other flexible ring.
In making a joint as shewn in Fig. 1 the rubber ring E is placed at the bottom
of the socket F, the nipple C is screwed into the socket F, and the spigot of the
pan A is lowered into this. The nipple C being then screwed down tightly it
presses the rubber ring against the spigot B. and the dovetailed end of the socket F,
thereby forming a perfect joint.
Referring now to Fig 2; D indicates a boss or socket formed on the soil pan A.
a is a connecting pipe provided with a male thread on the whole or part of its
length, upon which pipe, preferably at its extreme end which enters the socket,
is formed a flange h which butts against the flange i. Around this pipe a near
its end inside the socket is placed a ring d of india, rubber or other suitable
material. c is a loose collar which fits loosely the pipe a. b is a hexagonal or
other shaped nut, being provided with a female screw to engage the screw or
pipe a. When this nut is screwed in the proper direction it forces the collar c
against the india-rubber or other ring d which being jammed between the loose
ferrule c and flange h, is also forced against the sides of the socket D and outside
of the pipe a.
On the opposite end of the pipe a to that placed in the socket D is fixed the
pipe by any suitable means, or the pipes f and a may be formed integral with
one another.
We preferably make these joints of'earthenware, but brass or any other suit-
able material may be employed.
"Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed, we declare that what
we claim is":-
1. A pipe joint for sanitary and other purposes, substantially as shewn and
described.
2. A pipe joint for sanitary and other purposes, consisting essentially of a
spigot, formed upon the end of one pipe, which enters a socket formed upon the
end of the other pipe with a space between the two into which fits a screwed collar,

page_text: and the inner end of which socket is preferably dovetailed to receive an india-
rubber or other ring, which is distended when the collar is screwed in, in such
manner as to form a sealed joint between the two, substantially as shewn and
described.
3. In a pipe joint for sanitary and other purposes, the combination of a pan A,
having a spigot B, a screwed collar C, and a socket F having a recess into which
fits a rubber or other ring E, substantially as shewn and described.
4. In a pipe joint for sanitary and other purposes, the combination of a pan A,
a pipe a, having a flange h, a collar c a screwed nut b and a socket D, having a
recess into which fits a rubber or other ring E, substantially as shewn and
described.
Dated this 10th day of November 1897.
WILLIAM J. MUNDEN,
75 Chancery Lane, London, W.C., Agent for the Applicants.