Improvements in the Making of Plumbers' Joints and in Apparatus therefor.
Year: 1891

page_text: Date of Application, 10th Mar., 1891
Complete Specification Left, 10th Dec., 1891-Accepted, 20th Feb, 1892 .
PROVISIONAL SPECIFICATION.
Improvements in the Making of Plumbers' Joints and in Apparatus
therefor.
We, FREDERICK TYERS of 247 Mansfield Road, Plumber, and OSWALD
BARNSDALE of Lucknow Drive, Tobacco Manufacturer, both in the Borough of
Nottingham, do hereby declare the nature of our invention to be as follows:-
This invention relates to the making of what are known as plumbers' joints
generally for connecting composite piping or fittings thereto.
In carrying out this invention the ends of the piping or the piping and fitting are
prepared in the usual manner and are fitted together and held in position by a mould
of special construction fitting on the piping formed with a central enlargement
corresponding to the size it is desired to make the joint; molten metal is then poured
into the mould so as to fill the enlargement which metal when set is securely
attached to the piping, or piping and fitting, the mould may then be removed.
By this means a clean, secure and more perfect joint is obtained in a more
expeditious manner then heretofore.
The mould is preferably formed in two parts hinged together with corresponding
recesses in each part formed to fit on the piping, or piping and fitting, and a central
enlarged recess corresponding to the size and shape of the joint required. The
runners two of which we preferably employ may be formed in the surface of a
detachable part fitting in recesses in the upper portion of the parts of the mould
and arranged so as to enter the mould on either side of the piping so that the metal
will miss the piping and flow into the bottom of the enlargement; the detachable
part is also preferably provided with an aperture to let out the air.
The main parts of the mould may thus be removed when the metal is set, leaving
the detachable part held by the runners which may then be cut off and the
detachable part removed and the joint finished off.
The outer portions of the mould may be held in a closed position by screws or
bolts passing through the parts, or other suitable arrangement.
Modified forms of moulds may be employed for making different kinds of joints
for example a T joint, in most cases the runners being arranged so as to miss the
lead or composite piping, and cause the metal to flow into the enlargement; they
may however where a brass or like connection is used be arranged to run on the
part of the connection within the mould. In some forms of moulds it may also be
preferable to use only one runner or more than two.
Dated this 10th day of March 1891.
W. P. THOMPSON & BOULT,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in the Making of Plumbers' Joints and in Apparatus
therefor,
We, FREDERICK TYERS of 247 Mansfield Road, Plumber, and OSWALD
BARNSDALE of Lucknow Drive, Tobacco Manufacturer, both in the Borough of
Nottingham, 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 the making of what are known as plumbers' joints
generally for connecting lead or composite piping or fitting thereto,

page_text: It will be best understood by reference to the accompanying drawings in which
Fig. 1 is a front elevation of a mould for making a straight joint.
Fig. 2 is a side or end clevation.
Fig. 3 as a plan.
Fig. 4 is a vertical cross section taken centrally through the mould, and
Fig. 5 is a view of the interior of the upper part of the mould.
Fig. 6 is a front elevation of a mould for making a branch or † joint.
Fig. 7 is a side or end clevation.
Fig. 8 is a plan.
Fig. 9 is a vertical cross section taken centrally through the mould, and
Fig. 10 is a view of the interior of the upper part of the mould.
Like letters indicate like parts throughout the drawings.
In carrying out this invention the ends of the piping or the piping and fitting to
be connected are prepared and tinned in the usual manner and are held in position
by a mould of special construction fitting on the piping formed with an enlarged
recess corresponding to the size it is desired to make the joint, molten metal is then
poured into the mould so as to fill the enlargement which metal when set is securely
attached to the piping, or piping and fitting, after which the mould may be
removed.
C
The mould is preferably formed by an upper part a and lower part hinged
together at in the inner surface of which are corresponding semi-circular recesses d
formed to fit on the piping, or piping and fitting, and a central enlarged recess e
preferably concentric with the recesses d and in plan corresponding to the shape
and size of the joint required.
The upper part of the mould a is formed with a detachable part fitting from
the inner side into a dovetailed recess in the main part so as to be retained when the
mould is closed, on the inner surface of which part for the main part a or both,
are formed one or more runners which are placed in such a position that the
molten metal will not run on the piping, through which, if it did, it would pass,
but will miss it and when the mould is empty flow into the bottom of the enlarge-
ment.
In the upper portions of the detachable part and upward extension at of the
part a is formed a cup or box in connection with or continuous with the
runners g and into which the metal may be poured and simultaneously fed to both
runners.
By employing a detachable part f the inner surface of which meets the main
part a at the point where the runners are placed so as to divide at that part, and
leave the runners, the mould may be removed without difficulty when the metal is
set and the runners afterwards cut off.
In a mould for making a branch or T joint or connecting a fitting at an angle to
the main pipe (see Figs. 6 to 10) an additional and corresponding recess is formed
in the upper part a and lower part to receive the branch or fitting and the shape
and position of the enlarged recess e is modified as shown.
The recess in the upper part a of the mould is preferably formed in the under
side of the detachable part and the runners are placed on each side of the
branch or connection as shown so that the molten metal will not run on the
branch.
The lower part of the mould may also be provided with a detachable part i
corresponding to the part in the upper part of the mould, and these detachable
parts and may be interchangeable with duplicate parts having different sized
recesses to fit on pipes or connections of different diameters.
and 2,
The mould may be held in its closed position by a shackle as in Figs.
with its two ends pivotted. at to the upper part a of the mould and provided with
a screw the end of which bears on the projection on the lower part or as
shown in Figs. 6 and 7 by pivotted bolts k provided with nuts the bolts being
pivotted in projections on the upper or lower part and turn into slots in projections
on the other part and on which projections the nuts bear.

page_text: In making a joint the two ends of the pipe or pipe and connection are prepared
and tinned in the usual manner, the mould is then adjusted and molten metal poured
in until it is filled and set after which the mould is removed and the runners cut off,
by this means a clean secure and more perfect joint is obtained in a more expeditious
manner than by the process known as wiping.
Instead of a mixture of tin and lead as used in the usual process pure lead may
be employed and consequently the joint will not be liable to sweat.
To make a joint on a pipe in a vertical position a bend may be fitted on the cup
or box g which feeds the runners the bend being placed parallel with the piping
and the metal poured in. To facilitate the removal of the bend from the metal
core it may be made in two halves and hinged together in the same manner as the
mould.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is ;-
1. The employment of moulds for making plumbers joints substantially as
described.
2. A mould for making plumbers joints formed in two parts such as a and with
recessed portions d to fit on the pipe and enlarged recess such as e provided with
one or more runners such as for running the molten metal into the said recess
substantially as described and illustrated in the accompanying drawings.
3. In a mould for making plumbers joints the combination with the upper part a
of a detachable part such as substantially as and for the purpose described and
illustrated in the accompanying drawings.
4. In a mould for making plumbers joints the arrangement of the runners g so that
the molten metal will run into the recess e without impinging on the piping substan-
tially as described and illustrated in the accompanying drawings.
5. A mould for making plumbers branch or T joints formed in two parts such
as a and with recesses d for the pipe recess for the branch or connection and
enlarged recess such as e provided with runners such as y substantially as described
and illustrated in the accompanying drawings.
6. In a mould for making plumbers branch or T joints the combination with
parts a and b of detachable and interchangeable parts such as fand with recesses
to fit on the branch substantially as and for the purpose described and illustrated
in the accompanying drawings.
7. The combination and arrangement of parts constituting the complete mould for
making a straight joint substantially as described and illustrated in Figures 1 to 5
of the accompanying drawings.
8. The combination and arrangement of parts constituting the complete mould
for making a branch or T joint substantially as described and illustrated in Figures 5
to 10 of the accompanying drawings..
1001
.
FREDERICK TYERS.
OSWALD BARNSDALE.
W. P. Thompson & Boult,
Agents for the Applicants.