Improvements in the Manufacture of Lead or like Piping and in Means for Making Joints in same.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Lead or like Piping and in
Means for Making Joints in same.
We, A. BARRACLOUGH AND COMPANY LIMITED, of Eureka Lead Works, Heck-
mondwike, in the County of York, Lead Pipe Manufacturers, ERNEST ALEXANDER
BEAUMONT, of Queen Street, Huddersfield, in the County of York, Chairman
Director, and ALBERT BARRACLOUGH, of Eureka Lead Works aforesaid, Manager,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the manufacture of pipes composed
of lead or other similar soft metal or their alloys either with or without a lining
of tin, aluminium, or other like metal or alloy and also in means for making
joints in such pipes, which are also applicable to jointing lead or like pipes of
ordinary manufacture.
In carrying out our invention we first take a strip of lead or soft metal of the
length and width required, and upon one face thereof we solder or otherwise
suitably secure woven wire, perforated or reticulated or plain sheet brass, copper,
aluminium or other metal or alloy. Or in some cases we may insert the woven
wire or its equivalent in the centre of the lead strip by casting the lead in a
mould having the woven wire or perforated or plain metal fixed therein.
We then pass the, strip through a conical die which causes it to assume the
form of a tube or pipe the opposing longitudinal meeting edges of which are
then burnt or soldered together. The lining (if used) either with or without an
intermediate non-conducting section, is then inserted in the pipe in the usual
way and the whole finished by passing same through dies or rollers.
An alternative method to the above is to first cover the tin or other lining in
the usual way with asbestos or other non conducting material and then place it
in the centre of a prepared mould into which molten lead or other soft metal or
alloy is poured and forms the outer case or shell, the same being finished by
subsequently passing it through dies or rollers.
Lead or like soft metal pipes manufactured as above set forth are capable of
withstanding much greater pressure than ordinary lead or tin lined lead piping
and are not so liable to bulge or expand.
The second part of my invention relating to means for making branch joints
in lead or like soft metal piping consists of a tee piece which is stamped out of
sheet brass, copper, aluminium or other metal or alloy in such manner that a
bulge, enlargement or projecting part is formed on each side of and extending
a short distance below the cross piece at the junction of the tee piece so that when
the stamping is turned up or completed it forms a ring or shoulder round the
neck of the branch outlet. The main pipe is severed where the branch pipe is to
be joined thereto and the cross head of the tee piece is inserted into each opposing
end thereof while the branch pipe is forced on to the leg of the tee piece and
against the collar or shoulder thereon after which solder is applied over the joint
to seal same in the ordinary way. The bulge or enlargement and collar or

page_text: shoulder on the tee piece facilitate the making of the joint and prevent the entrance
of any solder into the pipe. For the purpose of expanding the pipe ends to make
the joint, we use a tool comprising a tapered mandrel in which are cut two or
more grooves. In these grooves are keys or ribs which are forced endwise by a
screw or other methods and by inserting the tool in the end of the pipe and rota-
ting it said pipe end is expanded to fit the tee piece.
Improvements in the Manufacture of Lead or like Piping and in
Means for Making Joints in same.
We, A. BARRACLOUGH AND COMPANY LIMITED, of Eureka Lead Works, Heck-
mondwike, in the County of York, Lead Pipe Manufacturers, ERNEST ALEXANDER
BEAUMONT, of Queen Street, Huddersfield, in the County of York, Chairman
Director, and ALBERT BARRACLOUGH, of Eureka Lead Works, aforesaid, Manager,
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 improvements in the manufacture of pipes composed
of lead or other similar soft metal or their alloys either with or without a lining
of tin, aluminium, or other like metal or alloy and also in means for making
joints in such pipes, which are also applicable to jointing lead or like pipes of
ordinary manufacture.
In carrying out our invention we first take a strip of lead or soft metal of the
length and width required, and upon one face thereof we solder or otherwise suitably
secure woven wire, perforated or reticulated or plain sheet brass, copper, aluminium,
or other metal or alloy. Or in some cases we may insert the woven wire or its
equivalent in the centre of the lead strip by casting the lead in a mould having
the woven wire or perforated or plain metal fixed therein. We then pass the
strip through a conical die which causes it to assume the form of a tube or pipe
the opposing longitudinal meeting edges of which are then burnt or soldered
together. The lining (if used) either with or without an intermediate noncon-
ducting section, is then inserted in the pipe in the usual way and the whole
finished by passing same through dies or rollers.
An alternative method to the above is to first cover the tin or other lining in
the usual way with asbestos or other non conducting material and then place it
in the centre of a prepared mould into which molten lead or other soft metal or
alloy is poured and forms the outer case or shell, the same being finished by sub-
sequently passing it through dies or rollers.
Lead or like soft metal pipes manufactured as above set forth are capable of
withstanding much greater pressure than ordinary lead or tin lined lead piping
and are not so liable to bulge or expand.
The second part of our invention relating to means for making branch joints
in lead or like soft metal piping consists of a tee piece which is stamped out of
sheet brass, copper, aluminium, or other metal or alloy in such manner that a
bulge, enlargement or projecting part is formed on each side of and extending
a short distance below the cross piece at the junction of the tee piece so that when
the stamping is turned up or completed it forms a ring or shoulder round the

page_text: neck of the branch outlet. The main pipe is severed where the branch pipe is
to be joined thereto and the cross head of the tee piece is inserted into each
opposing end thereof while the branch pipe is forced on to the leg of the tee piece
and against the collar or shoulder thereon after which solder is applied over the
joint to seal same in the ordinary way. The bulge or enlargement and collar or
shoulder on the tee piece facilitate the making of the joint and prevent the
entrance of any solder into the pipe. For the purpose of expanding the pipe ends
to make the joint, we use a tool comprising a tapered mandrel in which are cut
two or more grooves.
In these grooves are keys or ribs which are forced end-
wise by a screw or other methods and by inserting the tool in the end of the pipe
and rotating it said pipe end is expanded to fit the tee piece.
In order that our said invention may be fully understood, reference is herein-
after had to the annexed sheet of drawings forming a part of this specification
in which:-
Figs. 1 and 2 are geometrical views shewing our improvements in the manu-
facture of lead or like soft metal piping,
Fig. 3 shews in elevation our improved jointing piece applied to the junction
of a branch and main lead or like pipe for jointing same, the pipes being shewn
in section;
Fig. 4 is cross section of our improved jointing piece; and
Fig. 5 is similar elevation to Fig. 3 shewing a modification in the construction
of the jointing piece.
Referring firstly to Fig. 1 letter a represents the fragment of a strip of lead
or soft metal of the length and width required to form the pipe, and b a corres-
ponding strip of woven wire or other equivalent perforated recticulated or open-
work metal, or plain sheet brass, copper, aluminium or other metal or alloy, which
said strip is laid upon one side or surface of the strip of lead a and is soldered
or otherwise secured thereto, or instead of employing a strip of lead or soft metal
and securing the woven wire b or its equivalent thereto, as previously described
with reference to Fig. 1, we may insert the woven wire or perforated or plain
metal strip in the centre of the lead strip a, as shewn at Fig. 2, by casting the
lead in a mould having such strip 6 fixed therein.
When the strip of lead or like soft metal a has been thus provided with the
strip of woven wire or perforated or plain metal as described with reference to
Fig. 1 or Fig. 2, we pass said strip a through a conical die or grooved rollers
which causes it to assume the form of a tube or pipe, the opposing longitudinal
meeting edges of which are then burnt or soldered together. Where the strip
bis secured to the surface of strip a, as in Fig. 1, the pipe or tube is formed or
drawn with the strip b on the inner side as a lining to the pipe.
If a tin lining is to be applied to the pipe made as above set forth, such lining
either with or without an outer covering or section of asbestos or other non con-
ductor, is then inserted in the pipe in the usual way and the whole finished by
passing same through dies or rollers.
A modification of our improvements in the manufacture of lead or like soft
metal piping with a tin or other metal lining and intermediate non conducting
section consists in first covering the tin or like lining in the usual
way with asbestos or other non conducting material, and afterwards
placing it like a core in the centre of a prepared mould into which
mould molten lead or other soft metal or alloy is poured to cover the
lining all round from end to end and form the outer case or shell of the pipe,
this being finished by subsequently passing it through dies or rollers. The cover-
ing of non conducting material around the tin lining prevents the said lining
from being affected or melted by the heat from the molten lead in casting. We
may or may not add a strip of woven wire or like perforated or plain metal in
making the pipe as last described, but if applied thereto, we should prefer to
wrap it spirally around the non conducting material; or it may be bent around
same and its over lapping meeting edges secured together in any suitable manner.

page_text: Lead or like soft metal pipes manufactured as above set forth are capable of
withstanding much greater pressures than ordinary lead or tin lined piping, and
are not so liable to bulge or expand, or to fracture.
The second part of our invention relating to means for making branch joints
in lead or like soft metal piping is shewn at Figs. 3, 4, and 5, and consists of a
tee piece c which is stamped out of sheet brass, copper, aluminium, or other suit-
able metal or alloy, and enlarged or expanded at c₁ on each side of and extending
below the horizontal head of the tee piece so that when the stamping is turned
up or completed such enlargement or expansion c¹ of the metal at the junction of
the tee piece forms a ring or shoulder a round the neck of the branch outlet of
said tee piece. The main pipe e to which a branch pipe is to be jointed, is severed
in two at the place required, and the cross head of the tee piece then inserted
into each opposing severed end thereof while the branch pipe f is forced on to
the leg of the tee piece and against the shoulder & thereon, solder being after-
wards applied in the usual way to seal the joint.
The bulge or enlargement c¹ and shoulder d on the tee piece facilitate the
making of joints in lead or like soft metal piping and prevent the entry of any
solder into the pipe. In lieu of stamping the tee pieces out of sheet brass copper
or the like, we may cast them in such metal in which case, in addition to the
shoulder d on the leg of the tee piece, we form shoulders g, g, on the cross head
of the tee piece, as shewn at Fig. 5, so that each severed end of pipe e as well as
the end of pipe f are forced on to the ends of the tee piece and against the
shoulders g,g, and d respectively. In jointing the end of one pipe only to another
at right angles, an L shaped jointing piece is used instead of a tee piece the same
being formed in like manner as described with reference to Figs. 3 4 and 5.
For the purpose of expanding the pipe ends to make the joint, we use a tool
comprising a tapered mandrel in which are cut two or more grooves. In these
grooves are keys or ribs which are forced endwise by a screw or other means, and by
inserting the tool in the end of the pipe and rotating it, said pipe is expanded to
fit the tee piece.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
(1) The manufacture of lead or like soft metal piping with a strip or section
of woven wire or perforated or reticulated, or plain thin metal, soldered or other-
wise united or caused to adhere to the lead, or cast in with the metal substantially
as herein shewn and described and for purposes set forth.
(2) The manufacture of non conducting tin lined lead or like soft metal piping
by casting the lead pipe or shell in a mould around a core formed of block tin or
like lining covered with non conducting material either without or in combination
with a layer or strip of woven wire substantially as herein described.
(3) The improved joint for jointing pipes together comprising a tee or like
shaped jointing piece stamped out of sheet metal or cast in one piece and having
an enlargement or bulge or shoulder d on the leg thereof or shoulders d and g, g,
on both leg and cross head substantially as described and shewn in Figs. 3 to 5.
Dated this 2nd day of March 1899.
TASKER & CROSSLEY,
Patent Agents, Halifax, Agents for Applicants.