Improvements in Making Moulds for Casting Baths, Cisterns, Tanks, Sinks, and the like.
Year: 1898

page_text: Date of Application, Sist Aug., 1898
Complete Specification Left, 30th May, 1899-Accepted, 1st July, 1899
Date of Application, Sist Aug., 1898
Complete Specification Left, 30th May, 1899-Accepted, 1st July, 1899
PROVISIONAL SPECIFICATION.
Improvements in Making Moulds for Casting Baths, Cisterns, Tanks,
Sinks, and the like.
I, JOHN SHANKS, of the Tubal Works, Barrhead, in the County of Renfrew,
North Britain, Sanitary Engineer, do hereby declare the nature of this invention
to be as follows, that is to say:-
My said invention has for its object to expedite, the operations of making
moulds for casting baths, cisterns, tanks, sinks, and the like, and to obtain
improved results with diminished labor and expense.
In carrying out my invention according to one modification, in the case of
a bath, I employ frames adapted to be accurately connected to each other like
the mould boxes ordinarily employed for the external and internal parts of the
mould, but instead of the box-like structure of ordinary mould boxes, I fix to
each frame a skeleton framing approximating as nearly as may be found conven-
ient to the contour of the bath. Each skeleton framing consists of metal bars
crossed at right angles or other angles by other bars; and in some cases wire
netting may be fixed to the bars on the sides nearest to the pattern. The mould
material employed is a composition of loam and other substances similar to what
is employed for forming cores; and is applied through the interstices of the
skeleton framings so as to be moulded on the surface of the pattern. Ramming
such as is used with ordinary sand moulding is not required, the mould material
being applied with just enough pressure to put it in contact with all parts of the
pattern. Each part of a mould formed as hereinbefore described is separately
dried or stoved prior to the parts being put together to receive the cast metal.
In some cases one part of a mould may be formed as hereinbefore described
and another part may be formed in the ordinary way, with ramming; or the other
part may consist of a castiron piece which whilst shaping one surface acts as
a chill upon the cast metal, the surface of the piece being coated with a film
of loam-like or other suitable material. The pattern for a bath or the like may
be made in two or more pieces and a perforated metal shell (instead of a skeleton
frame) may support the mould material, such material being introduced and
applied before placing the upper part of the pattern in position.
Dated this Thirtieth day of August 1898.
EDMUND HUNT,
Applicant's Agent.
Improvements in Making Moulds for Casting Baths, Cisterns, Tanks,
Sinks, and the like.
I, JOHN SILANKS, of the Tubal Works, Barrhead, in the County of Renfrew,
North Britain, Sanitary Engineer, do hereby declare the nature of this invention
Price 811

page_text: and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement, that is to say: —
My said invention has for its object to expedite, the operations of making
moulds for casting baths, cisterns, tanks, sinks, and the like, and to obtain
improved results with diminished labor and expense.
And in order that my said invention and the manner of performing the same
may be properly understood I hereunto append a sheet of explanatory drawings
to be hereinafter referred to and showing by way of example one modification
of my improvements.
Figure, 1, is a horizontal section and Figure, 2, a transverse vertical section
of an example of my improved form of mould boxes.
In carrying out my invention according to one modification in the case of a
bath for example I employ frames adapted to be accurately connected to each
other like the mould boxes ordinarily employed for the external and internal
parts of the mould, but instead of the box-like structure of ordinary mould
boxes I, as shown in the drawings, make each frame, A, B, to consist of a skeleton
framing made up of metal bars, D, crossed at right angles or other angles by
other bars, E, by preference made of T-section, the framing approximating
as nearly as may be found convenient to the contour of the bath. C. In some
cases wire netting may be fixed to the bars on the side nearest to the pattern, C.
The mould material, F, employed is a composition of loam and other substances
similar to what is employed for forming cores; and is applied through the inter-
stices, G, of the skeleton structure fixed to the framings, A, B, so as to be moulded
on the surface of the pattern, C. Ramming such as is used with ordinary sand
moulding is not required, the mould material, F, being applied with just enough
pressure to put it in contact with all parts of the pattern, C. Each part of a
mould formed as hereinbefore described is separately dried or stoved prior to
the parts being put together to receive the cast metal.
In some cases one part of a mould such as the outer part may be formed as
herein before described and another part may be formed in the ordinary way
with ramming; or the other, such as the inner, part may consist of a castiron
piece which whilst shaping one surface acts as a chill upon the cast metal, the
surface of the piece being coated with a film of loam-like or other suitable
material.
The pattern for a bath or the like may be made in two or more pieces and a
perforated metal shell (instead of a skeleton frame) may support the mould
material, such material being introduced and applied before placing the upper
part of the pattern in position.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
In making moulds for casting baths, cisterns, tanks, sinks, and the like,
employing mould boxes consisting of frames having fixed to them bars forming
a skeleton approximating to the contour of the article to be cast, with or without
wire netting fixed to the bars, the mould material being applied through the
interstices of the skeleton framing, substantially as and for the purposes herein-
before described.
Dated Twenty-seventh day of May 1809
EDMUND HUNT,
Applicant's Agent.