Supply of Gas, Water, or the like.
Year: 1888

page_text: Date of Application, 11th May, 1888
Complete Specification Left, 11th Mar., 1889
Complete Specification Accepted, 13th Apr., 1889
Supply of Gas, Water, or the like.
I, JEAN BAPTISTE HENRI RAPHAEL POUJADE of Levallois Perret (Seine) in the
Republic of France, do hereby declare the nature of this invention to be as follows:--
The present invention relates to an improved method of and apparatus for connecting
metallic or other pipes and especially to the spirally covered piping of the system of
"Levasseur & Witzenmann."
Up to the present time the spirally covered pipes for connecting a movable gas lamp
to a fixed gas pipe for instance, have had to be kept in stock at the warehouses
ready cut in certain lengths to the ends of which are soldered the joints for joining
this length of tube to the fixed pipes. This system presents the serious inconvenience
that shop or warehouse keepers are obliged to keep an assortment of various lengths
in stock.
With the system forming the subject of the present application, shop and warehouse
keepers need only keep a coil of the flexible tubing from which any desired length
can be cut as occasion presents itself.
Onto the spirally covered tubing is screwed the coupling consisting essentially of
a sleeve with interior screw-thread corresponding to that of the spirally covered
tubing.
This sleeve is enlarged at the top and forms a ball for the reception of the end of
the fixed gas pipe or the end of the supply pipe of the gas lamp or heating apparatus.
The nozzle of this pipe enters the spherical head of the coupling through a suitable
opening. A little below this opening an annular groove is formed in the spherical
head in which engage and slide pins or studs attached to an outer cap.
The outer cap fits over the head of the coupling and is formed with openings
corresponding with those of the head, and is further provided with an annular milled
rim and three pins or studs which engage in the annular groove of the head thus
attaching the cap to the head and permitting the former to turn on the latter so that
the openings of both may register or be closed.

page_text: A stop in the groove of the spherical head limits the movement of the studs of the
cap and thus in combination with the milled rim facilitates the screwing on or
unscrewing of the coupling. When the nozzle of the fixed pipe is introduced in the
spherical head through the corresponding openings of the head and the cap, the latter
is turned so that the head and cap only present a circular opening in the top, the
edge of which engages with the neck of the nozzle of the fixed pipe.
Screwing now the coupling onto the spiral tubing a tight joint between the latter
and the nozzle of the fixed pipe is obtained by means of a suitable indiarubber
washer interposed between the two or in any other suitable manner.
For hydraulic or compressed air pipes it is often desirable to join two spirally
covered tubings of the system Levasseur & Witzenmann and the same system of
coupling can be employed with a slight modification which does not deviate from
the principle of the invention this being the use of a screw-threaded sleeve which is
adapted to screw onto the spirally covered tubing.
The above described coupling may be modified to suit the requirements of
different applications of the invention such as for gas, water, air and the like.

page_text: Improved Method of and Apparatus for Connecting Pipes for the
Supply of Gas, Water, or the like.
1 JEAN BAPTISTE HENRI RAPHAEL POUJADE, of Levallois Perret (Seine) in the
Republic of France, 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 relates to a new form of junction or connection for gas and other
pipes or tubes.
In the accompanying drawing :-
Figs. 1 and 2 show in sectional elevation, and in two positions, my improved
junction as applied to connect a flexible tube to a gas standard, by way of example.
Fig. 3 is a side elevation, and Figs. 4 and 5 are plan views of Figs. 1 and 2.
a is a sleeve, which is threaded internally, and is formed at one end with an
enlargement a, which takes a spheroidal form. In the side of the part at an opening b
is made, of about half the depth of the sphere, which opening will be somewhat
dovetailed in form (see Fig. 3). Round the sphere a¹, externally, and below the
recess, a groove a² is formed, in which work stop pins of a hemispherical cover or
In this cover c an opening is made, corresponding to that in the sphere a¹.
When the cover receives a half turn, the opening in a¹ will be closed up, and the
only opening left will be in the top of the sphere.
cap c.
The
Inside the sphere is placed a small cup-shaped washer d, of india rubber or soft
metal, the washer being provided with a tubular extension d' on its underside.
sleeve a screws onto a piece of metal tube e, to which the flexible tube will be
conveniently attached.
The gas standard will be provided with a nozzle f, formed with an enlarged or
spherical end, the diameter of which must not be greater than the width of the
opening b.
To make the connection, the cover is turned until the two recesses coincide. The
nozzle is then inserted through the opening (see Fig. 1); the cover is turned round
so as to complete the socket, and the sleeve is screwed down onto the tube e. The
effect of this screwing down is to cause the tube e, into which the tubular portion of
the washer enters, to jam the washer against the end of the nozzle, and the nozzle
against the top of the socket, thus making a gas tight joint (see Fig. 2).
The
To disconnect, it is only necessary to turn the cover in the reverse direction, and
when the two openings coincide, the connection can be lifted off the nozzle.
tube e will pass outside the tubular extension of the washer, so that the proper position
of the washer will always be assured.
It will be evident that to ensure a perfect joint, the end of the tube e must be
cut perfectly square, so that its bearing on the washer will be equal all round.

page_text: It will also be evident that the enlarged portion a¹ of the sleeve a, may be of
other shape than a spheriod; for example, it may be cylindrical or conical, and the
nozzle may be of corresponding shape.
The new junction may be used for any purpose to which such a connection is
applicable, but it is especially applicable to making connection to the flexible metal
tubing known as Levasseur and Witzenmann.
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
1 claim is :-
:-
1. Connecting gas or other pipes together, or to apparatus of various kinds, in
the manner herein shewn and described.
2. The construction of junction or connection for gas and other pipes or tubes as
shown and described.
NEWTON & SON,
Agents for the Applicant.