Improved Joint for Lead and other Piping.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improved Joint for Lead and other Piping.
I, DANIEL HURST, of 100B, Queen Victoria Street, London, E.C., Sanitary
Engineer, do hereby declare the nature of this invention to be as follows:-
My said invention relates to an improved construction of joint for pipes of
lead and other like soft or malleable material when joined to each other or to
pipes of harder material such as brass or iron.
According to my said invention I use a flanged ferrule through which the end
of the lead pipe is passed and then turned over on to the face of the flange. When
the ends of two lead pipes are to be joined two such ferrules (one of which is
externally screwed) are used in the same manner. An external coupling nut
formed with flats to enable it to be turned by means of a screw key or the like
is used to draw the two ferrules together so as to compress the turned over ends
of the lead pipes against each other between the faces of the ferrules.
Where a lead pipe is to be joined to a pipe of harder material the latter is
screwed externally to form a male thread for the coupling which when rotated
will draw up the end of the hard pipe and cause it to bear on the end of the
lead pipe which is turned over on a ferrule as above described thus pinching
the turned over end of lead pipe between the end of its own ferrule and the
end of the hard pipe.
To ensure a more perfect joint the face of each ferrule is grooved circumferen-
tially to form indentations into which the lead is squeezed.
To facilitate the insertion and spreading out of the end of the lead pipe I
make the ferrule internally tapered with its greatest diameter at the face of the
flange.
Datal 10th day of two 1800
E. T. WHITELOW, A. M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant.
Improved Joint for Lead and other riping.
I, DANIEL HURST, of 100B, Queen Victoria Street, London, E.C., 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 and accompanying drawings to which reference is
hereinafter made:-
My said invention relates to an improved construction of joint for pines of

page_text: lead and other like soft or malleable material when joined to each other or to
pipes of harder material such as brass or iron.
In the said drawings Figs. 1, 1ª, 1º, are respectively longitudinal section cross
section longitudinal elevation and end view of my said invention as applied to
joining two lengths of lead pipe.
Fig. 1 is a side elevation of a washer used in. some cases.
Fig. 2 is a sectional elevation of a joint made between a lead pipe and one
of harder material.
Fig. 3 is a sectional elevation showing the application of my said invention to
a tee or other multiple way branch connecting lead pipes..
According to my said invention I use a flanged ferrule a through which the
end of the lead pipe b is passed and then turned over on to the face of the flange.
When the ends of two lead pipes are to be joined as in Fig. 1 two such ferrules
(one of which a¹ is externally screwed and has external flats) are used in the same
manner. An external coupling nut c having an internal flange and formed with
flats to enable it to be turned by means of a screw key or the like is used to draw
the two ferrules a a¹ together so as to compress the turned over ends of the lead
pipes against each other between the faces of the ferrules.
C
Where a lead pipe is to be joined to a pipe of harder material b' as in Fig. 2 the
Jatter is screwed externally to form a male thread or the coupling nut which
when rotated will draw up the end of the hard pipe and cause it to bear on the
end of the lead pipe which is turned over on a ferrule as above described thus
pinching the turned over end of lead pipe between the end of its own ferrule and
the end of the hard pipe. Flats may be formed on to give a hold for a screw
key when turning the coupling nut c..
To ensure a more perfect joint the face of the ferrule and the end of the hard
metal tube are grooved circumferentially to form indentations into which the
lead is squeezed and in the case shown in Fig. 1 a similarly grooved hard metal
washer shown separately in Fig. 1° may be interposed between the two flat faces
of the pipe ends.
To facilitate the spreading out of the end of the lead pipe I make the ferrule a
internally tapered or rounded with its greatest diameter at the face of the flange.
The rear inner corners are rounded or chamfered to facilitate the insertion of
the lead pipes.
Fig. illustrates the application of my said invention to the special case of
joining several lead pipes to a multiple way branch or cock of hard metal. Each
end of such a branch is formed in the same manner as the pipe b' described with
reference to Fig. 2. The lead pipes are secured to each end of the branch with
a ferrule and coupling nut as described with reference to the same drawing.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what
I claim is
1. The hereinbefore described means for making a joint between lead or lead
and hard metal pipe ends substantially as set forth.
2. The combination of two flanged ferrules and a coupling nut adapted to
receive and compress together the outwardly flanged ends of two lead pipes sub-
stantially as set forth and shown.
3. The combination of two flanged ferrules concentrically grooved on their
faces a coupling nut bearing on the back of the flange of one ferrule and screwing
on to the edge of the flange of the other ferrule for making a joint between the
ends of two lead pipes substantially as set forth and shown.
4. The combination of the two outwardly flanged lead pipes an intervening
washer two ferrules and a screw coupling nut the whole forming a pipe joint
substantially as set forth and shown.
5. The combination of a hard metal pipe end flanged and externally screwed a i

page_text: flanged ferrule and a coupling nut the whole adapted to receive and clamp to the
face of the hard metal pipe the flanged end of a lead pipe substantially as set
forth and shown.
Dated this 17th day of April 1900.
E. T. WHITELOW, A. M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant,