Improvements in Waterclosets, Sinks, and Urinals, and in Pipe Connections therefor.
Year: 1894

page_text: Date of Application. 7th May, 1894
Complete Specification Left. 22nd Jan., 1895-Accepted, 2nd Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in Waterclosets, Sinks, and Urinals, and in Pipe
Connections therefor.
1, HENRY ISIDORE DAKIN of 4 Grand Parade, Putney, in the County of
Surrey, Builder and Sanitary Engineer, do hereby declare the nature of this
invention to be as follows:-
These improvements refer to the joint between the watercloset, (especially of
the wash down form) urinal, or sink and the outlet pipe therefrom. I provide the
pan of the closet on the outlet side with an unglazed and roughed annular groove
or recess which is wider in its lower part and tapers upwards. The bend of or to
the soil or outlet pipe I make with a spigot end for insertion down in the aforesaid
groove, and I make a joint by pouring in semi-liquid cement or other suitable joint
material which surrounds the spigot end both inside and outside and below.
Instead of making the groove taper I may form it parallel with lateral grooves,
beads, flanges or other recessed or projecting parts for forming a strong key for
the cement; similarly the spigot end of the bend may be formed with one or more
grooves, beads, flanges or other recessed or projecting parts. The upper face of
the joint is below the water line in the pan so that a gas leakage becomes
impossible. The inner set-off of the bend at this place rests on the top of the joint
part of the pan. The top of the bend may be provided with the usual socket for
connecting thereto an antisyphon ventilating pipe.
By the aforesaid construction I am enabled to use advantageously a bend of
lead, iron or stoneware, but other suitable materials such as brass may be employed.
The bend (which is sometimes of S trap form) can be turned round in any required
direction to the side or back and be made with any desired length of pipe to the
drain or soilpipe without a joint.
As applied to urinals and slop and other sinks my invention also overcomes the
disadvantages of the ordinaty red lead joint and metal trap.
Dated this 7th day of May 1894.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Waterclosets, Sinks, and Urinals, and in Pipe
Connections therefor.
I HENRY ISIDORE DAKIN of 4 Grand Parade, Putney, in the County of
Surrey, Builder and Sanitary 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 :-
These improvements refer to the joint between the watercloset (especially of
the wash down form) urinals or sinks and the outlet pipe therefrom.
I provide the pan of the closet with an annular groove or recess which by
preference is wider in its lower part and tapers upwards. The bend of or to the
soil or outlet pipe I make with a spigot end for insertion down in the aforesaid
[Price 8d.]

page_text: groove and I make a joint by pouring in semi-liquid cement or other suitable joint
material which surrounds the spigot end both inside and outside and below.
Instead of making the groove taper I may form it parallel with lateral grooves
beads or flanges or other recessed or projecting parts. The upper face of the joint
is below the water line in the pan so that a gas leakage becomes impossible. The
inner set off of the bend at this place rests on the top of the joint part of the pan.
The top of the bend may be provided with the usual socket for connecting thereto
an antisyphon ventilating pipe.
"
Figure 1 is a vertical sectional view of an earthenware watercloset trap or outlet
constructed according to my invention being formed with an annular unglazed and
roughed recess or grocve A wider at the bottom than at the top. The bend of the
soil pipe B, in this instance of lead, I provide with a spigot piece C made of brass,
iron or other suitable metal united to the lead bend by "burning or soldering.
This spigot end or piece C is inserted in the groove A its lower end resting by
preference on blocks D formed or placed on the bottom of the groove A. The
joint is made by pouring semi-liquid cement into the groove. The bead C¹ on the
lower end of the spigot C forms a strong key. The upper face of the joint is
below the waterline or part B' of the bend thus preventing gas leakage.
Figure 2 shows the invention applied to an iron or earthenware soil pipe B, the
spigot end of which enters the groove A.
The recess A instead of being formed in the closet trap outlet itself may be
formed in a separate casting which is screwed, bolted or otherwise united to the
said outlet.
By the aforesaid construction I am enabled to use advantageously a bend of lead,
iron or stone ware but other suitable materials such as brass may be employed.
'The bend which is sometimes of S trap form can be turned round in any required
direction to the side or back and be made in one with any desired length of pipe
to the drain or soil pipe without a joint. Another important advantage is as stated
that gas leakage from the joint with the bend becomes impossible.
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. Providing the closet trap outlet with an annular groove or recess part into
which a spigot end on the outlet bend is inserted and fixed by cement the joint
being below the water level in the trap substantially as and for the purposes
set forth.
2. The closet trap outlet formed or provided with a tapering annular recess A
below the bend part B' in combination with the spigot C on the outlet bend having
a bead or flange C' substantially as and for the purposes set forth.
Dated this 22nd day of Jan 1805
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.