IMPROVEMENTS IN APPARATUS EMPLOYED IN CASTING METAL PIPES OR TUBES
Year: 1881

page_text: LETTERS PATENT to Cecil Brooke Palmer, Gentleman, Rookes Evelyn Bell
Crompton, Engineer, and James Chambers, Foundry Manager, all of the
Stanton Iron Works, near Nottingham, in the County of Derby, for an
Invention of "IMPROVEMENTS IN APPARATUS EMPLOYED IN CASTING METAL
PIPES OR TUBES."
PROVISIONAL SPECIFICATION left by the said Cecil Brooke Palmer, Rookes
Evelyn Bell Crompton, and James Chambers at the Office of the Commissioners
of Patents on the 6th January 1881.
CECIL BROOKE PALMER, Gentleman, ROOKES EVELYN BELL CROMPTON, Engineer,
and JAMES CHAMBERS, Foundry Manager, all of the Stanton Iron Works, near
Nottingham, in the County of Derby. "IMPROVEMENTS IN APPARATUS EMPLOYED
IN CASTING METAL PIPES OR TUBES."
The object of our Invention is to facilitate the manufacture of cast metal pipes
or tubes with rapidity, economy, and uniformity of good finish.
For this purpose the mould boxes for the casting of the metal pipes or tubes are
arranged and supported in a vertical direction so as to be capable of being brought
into operation in succession at the desired point for casting after the formation of
the mould and core therein and the drying thereof has been effected, to be followed
by the removal of the moulded pipes or tubes.
To facilitate operation therewith the sides of the mould boxes are formed in
parts divided longitudinally, the meeting surfaces of these longitudinally divided
parts being connected by hinges at the one surface of each part, and by catches and
studs at the other surface of such parts, or these parts may be otherwise retained in
position as desired, and one part of each mould box is fixed to the sides of the pit or
other stationary surface, whilst the other part or parts are moveable. The moulds
for the upper portions of the outer surfaces of the pipes or tubes having been
formed in these mould boxes either for such tubes or pipes to be cast socket ends
downwards or spigot ends downwards, when such spigot ends are desired to be
moulded to particular forms, and the socket rings or parts for forming the outer
Price I

page_text: surfaces of the socket ends, or for giving form to the moulds for such spigot ends,
which had been during moulding supported by suitable catches or supports in
position in a central opening formed in the fixed base plate of the mould box being
removed, we then pass up through such central openings in these base plates other
socket rings or similar parts, having formed thereon the portions of the moulds for
the formation of the interior and end surfaces of the sockets or spigots, as the case
may be, and their correct temporary retention in their places is ensured by the
catches or supports applied to the base plate of the mould box being brought into
operation for that purpose, and the completion of the mould and core is effected.
The moulds having been dried by means of the beat obtained from jets of gas
applied beneath or in connection with the ends of the mould boxes or by other
suitable drying means, are then brought into use in succession for receiving the
molten metal from a suitable supply.
The parts of the fixed (or for the time being fixed) base plate of the mould box
and of the socket ring or parts for moulding the bottom ends of the pipes or tubes
are accurately faced where they meet in contact in position in an inclined direction
one meeting surface to the other.
Especial facility is afforded by this arrangement for the economical and accurate
manufacture of pipes or tubes of small diameter, and generally the simplicity of
parts in operation, combined with the accuracy of fit of the parts resulting, enables
us to obtain better results with economy and increased speed.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Cecil Brooke Palmer, Rookes Evelyn Bell Crompton, and James
Chambers in the Great Seal Patent Office on the 5th July 1881.
CECIL BROOKE PALMER, Gentleman, ROOKES EVELYN BELL CROMPTON, Engineer,
and JAMES CHAMBERS, Foundry Manager, all of the Stanton Iron Works, near
Nottingham, in the County of Derby. "IMPROVEMENTS IN APPARATUS EMPLOYED
IN CASTING METAL PIPES OR TUBES."
The object of our Invention is to facilitate the manufacture of cast metal pipes
or tubes with rapidity, economy, and uniformity of good finish.
But that the Invention may be fully understood we will, by the aid of the
accompanying Drawings, proceed to describe the same.
In carrying out our improvements the mould boxes for the casting of the metal
pipes or tubes are arranged and supported, as shown by plan view, Figure 1, and
vertical section Figure 2, in a vertical direction, so as to be capable of being brought
into operation in succession at the desired point for casting after the formation of
the mould and core therein and the drying thereof has been effected, to be followed
by the removal of the moulded pipes or tubes; a, a, represent the series of mould
boxes which are supported in a frame 6 and by the sides of the pit c.
To facilitate operation therewith the sides of the mould boxes a are formed
in parts divided longitudinally, the meeting surfaces of these longitudinally divided
parts being connected by hinges a¹ at the one surface of each part, and by catches
and studs a at the other surface of such parts, or these parts may be otherwise
retained in position as desired, and one part a* of each mould box a is fixed to the
frame b, and at 6¹ to the sides of the pit or other stationary surface, whilst the
other part a, a, is moveable, or if the moveable portion is formed in parts they are
connected in a similar manner. Figure 3 shews by a sectional view in two stages
A and B parts for forming the socket end downwards of a pipe; Figure 4 shows a
sectional plan of parts of a box a, and Figure 5 by sectional view parts for forming
the spigot end downwards of a pipe when such spigot end is to be formed of a
particular pattern or when both ends are formed as spigots. The moulds for the
upper portions h of the outer surfaces of the pipes or tubes having been formed in
these mould boxes a either for such tubes or pipes to be cast socket ends downwards,
as indicated by Figure 3, or spigot ends downwards, as indicated by Figure 5, when
such spigot ends are desired to be moulded to particular forms, such as a bead h*,
and the socket rings d, or parts for forming the outer surfaces of the socket ends c¹,
or for giving form to the moulds for such spigot ends which had been during
moulding supported, as shown by the section B of Figure 3, and by Figure 5, by
suitable catches or supports in position in a central opening formed in the fixed
base plate e of the mould box a being removed, we then pass up through such
central openings in these base plates e, e, other socket rings f, a portion of one of
which is shown in the section A of Figure 3, or similar parts, such parts having
formed thereon the portions of the moulds (as at f2 in section A, Figure 3) for the
formation of the interior and end surfaces of the sockets or spigots, as the case may
be, and the correct temporary retention in their places of these socket rings and
the part moulds carried thereby is ensured by the catches or supports g, g, applied
to the base plate e of the mould box a being brought into operation for that
purpose, and the completion of the mould and core is effected. The moulds having
been dried by means of the heat obtained from jets of gas j applied beneath or in
connection with the ends of the mould boxes, or by other suitable drying means,
are then brought into use in succession for receiving the molten metal from a
suitable supply; k indicates the moulding sand or material.

page_text: The parts of the fixed (or for the time being fixed) base plate e, of the mould
box a, and of the socket ring f, or parts for moulding the bottom ends of the pipes
or tubes are accurately faced, where they meet in contact in position in an
inclined direction, one meeting surface to the other, as at f¹, f¹, and d², d¹.
Especial facility is afforded by this arrangement for the economical and accurate
manufacture of pipes or tubes of small diameter, and generally the simplicity of
parts in operation, combined with the accuracy of fit of the parts resulting,
enables us to obtain better results with economy and increased speed.
Having thus described the nature of our said Invention, and means which
we employ in carrying the same into effect, we would have it understood that
what we claim is, the arranging or combining parts forming improved apparatus for
use in casting metal pipes or tubes, substantially as herein shown and described.
In witness whereof, I, the said James Chambers, have hereunto set my
hand and seal, this First day of July, in the year of our Lord One thousand
eight hundred and eighty one.
JAS. CHAMBERS. (L.S.)