Improvements in Chills or Moulds used in the Manufacture of Syphon Flushing Apparatus.
Year: 1897

page_text: Date of Application, 9th Nov., 1897
Complete Specification Left, 9th Aug., 1898-Accepted, 1st Oct., 1898
PROVISIONAL SPECIFICATION.
Improvements in Chills or Moulds used in the Manufacture of
Syphon Flushing Apparatus.
THOMAS GARFORTH RHODES, Sanitary Engineer, Albert Terrace, Kirkstall,
Leeds, RAYMOND GAUNT, Engineer, The Mount, Stanningley, Leeds, do hereby
declare the nature of this invention to be as follows:―
Our invention consists of the construction of chills or moulds for forming the
subsidence cover or shield so that the same is cast with a suitable screwed cap
for connecting same to the screwed end of charging cylinder.
Also chills or moulds for casting the charging cylinder end (which receives
the syphon pipe & said cylinder). The same is cast with suitable screwed threads,
to receive the syphon pipe and charging cylinder. The object being to dispense
with the labour of screwing the parts.
Dotad this 8th day of Novomhar 1807
THOMAS GARFORTH RHODES.
RAYMOND GAUNT.
Improvements in Chills or Moulds used in the Manufacturê of
Syphon Flushing Apparatus.
We, THOMAS GARFORTH RHODES, Sanitary Engineer, of Albert Terrace, Kirk-
stall, and RAYMOND GAUNT, Sanitary Engineer, of The Mount, Stanningley, both
of Leeds, in the County of York, 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: -
Our invention refers to the construction of chills or moulds for forming sub-
sidence covers and cylinder ends employed in syphon flushing apparatus, and
our object is to so improve the construction of the said chills and moulds that
covers and ends may be cast with suitable screwed portions for connecting them
to the charging cylinder or other connection.
In order that our invention may be clearly understood, we will proceed to
describe same with reference to the accompanying drawing, in which similar
letters refer to like parts in all the figures.
Figure 1 is a sectional elevation of a chill mould and core for casting a sub-
sidence cover with a screwed cap on same, and Figure 2 is a plan of the chill

page_text: mould with the core removed. Figure 3 is a sectional elevation of a chill mould
and cores for casting a cylinder end with screwed threads on same suitable for
receiving the syphon pipe and charging cylinder.
According to our invention, and with particular reference to Figures 1 and 2,
A is the chill mould and B is the core. The core B is provided with an exterior
portion B having a hole B2 for the insertion of a pin, and with an interior
portion B3 which is formed with a screw thread on its exterior surface. The
formation of the interior of the chill mould A and the exterior of the core B,
is such as to form an annular cap 1 having a shield E attached to same, the
interior of the cap D being formed with a screw thread suitable for attachment
to the screwed end of a charging cylinder.
After the lead or other soft metal has been poured and the casting has set, the
core B is turned by means of a pin inserted in the hole 12, thus unscrewing the
interior portion 133 from the annular cap D and leaving a thread suitable for
the reception of the screwed end of a charging cylinder.
With special reference to Figure 3, the chill mould A is formed to a suitable
shape to cast the charging cylinder end with suitable screw threads for receiving
the syphon pipe and charging cylinder. In this case an auxiliary core Fis
employed, having an exterior portion F, hole F2, and interior screwed portion F³,
and an extension fits into a recess in the extension B+ of the core B thus
keeping them together in a secure manner. When the metal has been poured,
a charging cylinder end G is produced, from which the cores B and Fare with-
drawn by turning, thus leaving the screw threads in same which would otherwise
have had to have been formed at the expense of the labour of forming the screw
threads separately.
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 combination of the chill mould A, with the core B having a screwed
interior portion B3 on same, substantially as and for the purposes set forth.
2. The combination of the chill mould A, core B, exterior portion B' having
hole B² therein, and the screwed interior portion 13, substantially as and for the
purposes set forth, with particular reference to Figures 1 and 2 of the accom-
panying drawing.
3. The combination of the chill mould A, core B, exterior portion B¹, interior
screwed portion B³, extension B+, auxiliary core F, exterior portion F¹, interior
screwed portion F³, and extension F4, substantially as and for the purposes set
forth, with particular reference to Figure 3 of the accompanying drawing.
Dated this 9th day of August A.D. 1898.
BREWER & SON,
London and Leeds, Agents for the Applicants.