A New and Improved Method of Joining all Earthenware Sanitary and other Traps and Nozzles on to Lead Pipes to enable Plumbers to make Permanent Joints.
Year: 1891

page_text: Date of Application, 21st Sept., 1891
Complete Specification Left, 30th Dec., 1891-Accepted, 5th Mar., 1892
PROVISIONAL SPECIFICATION.
A New and Improved Method of Joining all Earthenware Sanitary
and other Traps and Nozzles on to Lead Pipes to enable
Plumbers to make Permanent Joints.
WILLIAM JAMES FREEMAN and EDWIN FREEMAN Sanitary Engineers of
99 & 559 York Road Battersea in the County of Surrey, do hereby declare the
nature of this invention to be as follows:-
This invention consists in having a screw thread or worm cast on to the outgo of
the traps or nozzles, and a short lead socket screw to fit same, then screwing the
said lead sockets on tightly with cement or paint. The plumber then to make a
wiped or soldered joint on to the first length of lead piping beyond the trap or
nozzle.
Dated this 21st day of September 1891.
1
WILLIAM JAMES FREEMAN.
EDWIN FREEMAN.
COMPLETE SPECIFICATION.
A New and Improved Method of Joining all Earthenware Sanitary
and other Traps and Nozzles on to Lead Pipes to enable
Plumbers to make Permanent Joints.
We, WILLIAM JAMES FREEMAN and EDWIN FREEMAN, Sanitary Engineers,
of 99 and 559 York Road, Battersea, in the County of Surrey, 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 object of this invention is to provide means whereby an ordinary plumber
may readily make a secure connection or joint between earthenware traps, the
earthenware inlet or outlet nozzles of water closets, urinal or lavatory basins,-
sinks and the like, and lead supply or discharge pipes.
The usual method at present adopted is to enlarge or splay out with a
convenient tool the interior of one end of the lead discharge pipe required to
be connected, to slip this enlarged portion for a short distance over the trap or
nozzle, as the case may be, and to pack or make good the joint with red lead,
putty, or cement.
In the case of a lead supply pipe, the same is usually simply
inserted within the nozzle, and the joint made good, as in the case of a discharge
pipe, with red lead, putty, or cement. The above method is however extremely
unsatisfactory, and joints so made frequently become disconnected or leak. Other
methods, such as an encircling flange upon the trap, bolted to a corresponding
flange surrounding the lead supply or discharge pipe, have been suggested, but
these are also unsatisfactory, and connections so made are liable to open out
or leak.
Now according to our invention, we do not attempt to connect the lead supply
or discharge pipes directly with the said earthenware traps or nozzles, but, in
lieu thereof, we provide all such earthenware traps or nozzles each with a con-
necting piece of lead or analagous material, permanently secured thereto as
hereinafter described, such connecting piece consisting of a short length of lead
pipe or tubing. The lead supply or discharge pipe to be connected with the
trap or nozzle, is secured to that end of the said connecting piece which projects
beyond the trap or nozzle by a wiped or soldered joint, in lieu of to the trap
or nozzle direct.

page_text: To permanently secure the short length of pipe or tubing forming the connecting
piece, in position, we form a screw thread upon the end of the earthenware trap
or nozzle, and provide one end of the connecting piece with a corresponding
screw thread and screw it tightly upon the trap or nozzle, cement or paint having
been previously smeared over the threaded portions. A secure and permanent
connection is thus established between the trap or nozzle and the connecting
piece.
In the accompanying drawing we have illustrated by way of example the
application of our invention to the earthenware trap and inlet or flushing nozzle
of a water closet.
a is the trap and a¹ the inlet nozzle. b b are the screw threads formed thereupon.
cc are the lead connecting pieces which are provided with corresponding screw
threads and are permanently secured to the trap a and inlet nozzle a¹ respectively,
in the manner above described. dd' represent the lead flushing and discharge
pipes to be connected, which we secure to the projecting ends of the connecting
pieces c by wiped or soldered joints e.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we would observe in conclusion
that we wish it to be distinctly understood that we neither claim connecting lead
and earthenware pipes by means of a screw joint, nor connecting lead pipes by
wiped or soldered joints, but we declare that what we claim is :-
1. The herein described method of connecting earthenware traps and nozzles
with lead supply and discharge pipes, consisting in providing such earthenware
traps and nozzles with a tubular connecting piece of lead or analagous material
permanently secured thereto, to which connecting piece the lead flushing or
discharge pipe is to be secured by a wiped or soldered joint substantially as
described.
2. For the purpose set forth, the use in combination with an earthenware trap or
nozzle and a lead flushing or discharge pipe to be connected therewith, of a tubular
connecting piece of lead or analagous material, permanently secured to the said
earthenware trap or nozzle, substantially in the manner described and illustrated in
the drawings annexed.
Dated this 8011
A. E. ALEXANDER,
Chartered Patent Agent,
19, Southampton Buildings, London, W.C., Agent.