Improvements in the Method of and in Apparatus for Casting Connections on to Drawn or other Smooth Tubing employed in the Manufacture of Syphon Flushing Cisterns.
Year: 1897

page_text: Date of Application, 9th Sept., 1897
Complete Specification Left, 8th June, 1898-Accepted, 23rd July, 1898
Improvements in the Method of and in Apparatus for Casting
Connections on to Drawn or other Smooth Tubing employed in
the Manufacture of Syphon Flushing Cisterns.
We, THOMAS CLAUGHTON and JAMES HENRY CLAUGHTON, both of the Firm of
Claughton Brothers Limited, of Bramley, near Leeds, in the County of York,
Plumbers and Lead Founders, do hereby declare the nature of this invention to be
as follows:-
The object of our invention is to reduce the cost and facilitate the manufacture
of syphonic flushing apparatus, by casting connections on to drawn or other smooth
tubing in lead or other metal having a fusing point lower than that of the tubing,
the said casting of the connections and their attachment to the tubing being
performed in one and the same operation.
According to our invention, and with special reference to the casting of a
connection between a syphon and a cylinder, we provide a mould having the
extremities of its interior of suitable size and shape to embrace the ends of the
oylinder and the syphon required to be connected, the central portion of the said
mould being of a shape to form the exterior of the casting to be produced. Cores
are provided in the interior of the cylinder, syphon end, and in the mould, for the
purpose of regulating the shape of the interior of the casting. The ends of the
cylinder and syphon end which are situated in the mould, are formed with a series
of holes, or with a roughened surface, for the purpose of taking a firm hold on
the lead or other metal to be poured, the said metal filling the perforations or
filling the indentations and thus locking the newly cast portion firmly to the
cylinder and syphon end. Instead of forming the holes above described for the
purpose of giving a gripping surface for the casting to adhere to, we sometimes
coat the parts with tin, thus firmly joining the casting on the metal being run.
The roughened surface may, if desired, be formed by cutting a screw thread on
the end of the cylinder and syphon end, in which case the parts may be withdrawn
at some after time, if required, by unscrewing from the cast portion.
Cylinder ends and other parts may be cast and connected in a similar manner to
that before described.

page_text: Improvements in the Method of and in Apparatus for Casting
Connections on to Drawn or other Smooth Tubing employed in
the Manufacture of Syphon Flushing Cisterns.
We, THOMAS CLAUGHTON and JAMES HENRY CLAUGHTON, both of the Firm of
Claughton Bros. Limited, of Bramley, near Leeds, in the County of York,
Plumbers and Lead Founders, do hereby declare the nature of this invention and
in what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement :-
The object of our invention is to reduce the cost and facilitate the manufacture
of syphonic flushing apparatus, by casting connections on to drawn or other
smooth tubing in lead or other metal having a fusing point lower than that of
the tubing, the said casting of the connections and their attachment to the
tubing being performed in one and the same operation.
In order that our invention may be clearly understood, we will proceed to
describe same with reference to the accompanying drawings, in which similar
letters refer to like parts in all the figures.
Figure 1 is a sectional plan of a connection cast on to a tube, and
Figure 2 is a similar view of a somewhat similar connection, connecting a
straight tube with a bend.
Figures 3 and 4 are similar views, illustrating other applications of the same
invention.
According to our invention and with special reference to Figure 1, A is a
mould, having a portion of its interior of a suitable size to embrace a cylinder B
which is constructed of drawn or other smooth tubing. The end of the
cylinder B is formed with holes C in same, and projects into a central portion of
the mould, which is of a size and shape to suit the exterior of the casting D to
be produced. E is a core, having its largest diameter suitable for the interior of
the cylinder B, and the front end E¹ is formed to the shape of the interior of the
casting D.
F is a core which abuts against or connects with the portion E¹ of the
core E, and G is the pouring opening of the mould.
The cylinder B is first placed in position in the mould, and the cores E and F
are inserted. The mould A is then closed, and the lead or other metal is poured
into the opening G, the said metal filling the perforations C and locking the
newly cast portion firmly to the cylinder B. On the mould being opened and the
cores withdrawn, the cylinder B is set free, with a connection D of any particular
shape previously determined, firmly connected thereto.
At Figure 2 where a bend H is shewn connected to the other opening of the
connection D, a means is shewn whereby the core F previously referred to is
operated from the interior. The core F passes into the interior of the portion E¹
of the core E, its height being regulated by means of a lever K which is
fulcrumed at L in the core E. By this means the end of the syphon is held firmly
in position during the pouring of the metal, and when the casting has been poured,
the core F is withdrawn by actuating the lever K, thus allowing cores F and E to
be simultaneously withdrawn through the cylinder B. We have shewn the end of
the syphou bend H with a screw thread on its exterior to give a gripping surface
for the casting to adhere to, and this casting onto a screw thread has the advantage
of facilitating the separation of the parts at some after time, if required.
The connection D seen at Figure 3, shews two tubes H and B connected
together, with a free opening M formed by the core F being carried through the
base of the connection, and a somewhat similar connection is seen at Figure 4 in

page_text: which a diverting plate N is required to be formed, is constructed with the help of
an additional core P. It is of course obvious that any other desired shape of
connection may be formed and simultaneously attached to smooth tubing, without
departing from our invention.
Besides the perforations and screw threads above described, any other indented
or roughened surface might be employed for the purpose of forming the gripping
surface between the connection and the tubing, or the tubing may be coated with
tin for the purpose of giving the required adhesion.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The casting of connections of lead or other metal having a low fusing point,
on to tubing having a fusing point higher than that of the connection, substantially
as and for the purposes set forth.
2. The mould A having one portion of suitable size for holding the cylinder B
and the other portion of suitable shape for forming the exterior of a connection D,
in combination with suitable cores, substantially as and for the purposes set
forth.
3. The combination of the mould A, cylinder B having holes C therein,
connection D, core E, and core F, substantially as and for the purposes set
forth.
4. The combination of the mould A, cylinder B, connection D, core E, core F
actuated by means of lever K, and bend H, substantially as and for the purposes set
forth.
5. The general arrangement, construction, and combination of the various parts,
forming our improvements in the method of and in apparatus for casting connections
on to drawn and other smooth tubing employed in the manufacture of syphon
cisterns, substantially as and for the purposes set forth.
A 1000
Bated
VOID
9th day of JanA.D. 1808.
BREWER & SON,
London and Leeds, Agents for the Applicants.