An Improvement in Mains for Gas or Liquids.
Year: 1892

page_text: Date of Application, 3rd Oct., 1892
Complete Specification Left, 28th Nov., 1892-Accepted, 18th Feb., 1893
PROVISIONAL SPECIFICATION.
An Improvement in Mains for Gas or Liquids.
CHARLES ANTHONEY MACKENROT 144 Peckham Park Road, Peckham
London S.E. Mechanical Engineer do hereby declare the nature of this invention
to be as follows:-
(The mains now in use have a turned conical spigot at one end, at the other a
bored socket of the same taper.)
I to make a true joint, and a tight length of main through any district, would
use a turned conical spigot at each end of length of main, and a short socket, bored
conical, on each side a short distance from the face. And in case of inclines, or
curves of any radius, to bore the sockets, at different angles as 175° 170° 168°, as
the case may be.
Dated this 20th day of October 1892.
COMPLETE SPECIFICATION.
An Improvement in Mains for Gas or Liquids.
CHARLES ANTHONEY MACKENROT 144 Peckham Park Road Peckham
London S.E. Mechanical 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 :-
There are at present two styles of mains in use, viz. :-
A "Mains with lead joints." These consist of plain pipes with a socket at one
end of each length, the joints being made with yarn and lead, the same well driven
up. This particular kind of joint soon becomes defective, especially where there
is traffic, as the lead being soft, is soon compressed, and the yarn, for want of
moisture, looses the desired degree of expansion, thus causing an escape.
B "Mains with turned and bored joints." These consist of lengths of pipes,
with a turned conical spigot at one end of a length, and a socket bored at the back,
of the same taper as the spigot, leaving room to make a lead joint, where curves or
inclines occur, at the other end of length. It is impossible however to secure a
perfect tight joint, as neither the maker, nor the main layer can test them.
By my invention, I guarantee to make a true joint, and tight length of main in
any district without the use of lead joints.
To do this, I purpose using turned conical spigots, the cone to commence at about
half an inch, from the ends of each length of main, and a short double bored
socket (S. Fig. 1) so that the socket could be tried on the spigot, and made tight
proportionately, to the pressure the joints have to stand. In the case of inclines,
or curves of any radius, the sockets to be bored at different angles, as 175° (Fig. II),
170° (Fig. III), 168° (Fig. IV), as the case may be. Sockets "S" are in
sections.
The reason of the turned or bored part being half an inch from end of length,
is to prevent any damage that may happen, whilst the pipes and sockets, are being
removed from place to place.

page_text: Having now particularly described and ascertain the nature of my invention
and in what manner the same is to be performed, I declare that what I claim is
"To make a true joint and tight length of main, through any district without
the use of lead joints.'
Dated this 26th day of November 1892.
CHARLES ANTHONEY MACKENROT.