Year: 1886

page_text: Date of Application, 11th Aug., 1886
Complete Left, 4th June, 1887.
Complete Accepted, 5th July, 1887.
I, HENRY DOULTON of Lambeth in the County of Surrey, Pottery Manufacturer
do hereby declare the nature of this invention to be as follows:-
This invention has for its object an improved joint for connecting pipes to other
pipes or vessels.
The pipe or vessel with which the connection is to be made is provided with a
flange around the mouth, and in the periphery of the flange three or other number of
notches are provided at equal distances apart. Over this flange a ring fits and on
the ring lugs or hooks are provided having projecting heads. The grooves in the
flange correspond to these lugs or hooks and allow them to pass, so that when the
ring is placed on the flange and turned partly round it becomes attached so that it
cannot be drawn directly off the flange. The pipe to be connected has a shoulder
upon it near its end which supports a compressible washer. The pipe thus furnished
is inserted through the ring above mentioned and the washer upon it is brought to
abut upon a seating prepared on the flange around the mouth to which the connection
is to be made. Also surrounding the pipe there is a ring with a screw thread cut
upon its periphery, this engages with a corresponding thread cut in the outer ring
or that on which the lugs or hooks are formed.
When the parts are in place the inner ring is screwed into the outer ring until it
abuts upon the shoulder of the pipe, and by tightening it against this shoulder the
washer is forced against the seat and a water tight joint is made.
CARPMAEL & Co.,
Agents for the Applicant.

page_text: I, HENRY DOULTON of Lambeth in the County of Surrey, Pottery Manufacturer
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 has for its object an improved joint for connecting pipes to other
pipes or vessels.
The pipe or vessel with which the connection is to be made is provided with a
flange around the mouth, and in the periphery of the flange three or other number of
notches are provided at equal distances apart. Over this flange a ring fits and on the
ring lugs or hooks are provided having projecting heads. The grooves in the flange
correspond to these lugs or hooks and allow them to pass, so that when the ring is
placed on the flange and turned partly round it becomes attached so that it cannot be
drawn directly off the flange. The pipe to be connected has a shoulder upon it near
its end, which supports a compressible washer. The pipe thus furnished is inserted
through the ring above mentioned and the washer upon it is brought to abut upon a
seating prepared on the flange around the mouth to which the connection is to be
made. Also surrounding the pipe there is a ring with a screw thread cut upon its
periphery, this engages with a corresponding thread cut in the outer ring or that on
which the lugs or hooks are formed.
When the parts are in place the inner ring is screwed into the outer ring until it
abuts upon the shoulder of the pipe, and by tightening it against this shoulder the
washer is forced against the seat and a watertight joint is made.
In order that my said invention may be most fully understood and readily carried
into effect I will proceed to describe the drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is an elevation of a joint made in accordance with my invention.
Figure 2 is a section of the same.
Figures 3 and 4 are plans and shew the parts of the joint when separated.
a is the flanged end of a pipe, or it may be the tubular mouth piece of a vessel
of any form. This piece forms one part of the joint and its flange is provided with
three or other number of notches a¹ a¹. is the pipe to be secured to the part a, it
has upon it a flange b', and between this flange and the flange on the part a, a
compressible washer c is interposed. d is a ring provided with lugs or hooks d¹, d',
the heads of which are able to pass through the notches a¹ in the part a. When the
heads of the lugs have been thus passed through the notches and the ring is turned
partly round, the lugs will take hold of the flange on the part a in the manner shown
by the drawings. e is another ring surrounding the pipe b. It has a screw thread

page_text: cut upon its periphery adapted to work in a corresponding screw thread cut within
the ring d.
When the parts have been made to engage in the manner already described the
ringe is screwed up into the ring d until it bears against the flange 6 on the tube b
and presses this flange up towards the corresponding flange on the part a compressing
the washer c between the two flanges and thereby making a water tight joint.
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. My improved joint consisting of the parts a and b and the ring d engaging with
the part a and receiving the screw ring d operating against the part b to press it up
towards the part a substantially as described.
2. My improved joint for connecting pipes to other pipes or vessels substantially as
herein described and represented by the annexed drawings.
Dated this 4th dow of Town 1007
CARPMAEL & Co.,
Agents for the Applicant.