An Improved Mould for Making Glazed Earthenware Gully Traps, and the like.
Year: 1895

page_text: COMPLETE SPECIFICATION.
An Improved Mould for Making Glazed Earthenware Gully Traps,
and the like.
I, GEORGE BRAIN Junior, of Glascote Heath, Tamworth, Warwickshire,
Contractor, 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 an improved mould for making glazed earthenware
gully traps and the like. Such articles are at present produced from a plaster
mould.
According to my invention I construct the mould partly of wood, and partly of
plaster, the formation thereof being different to that of moulds hitherto employed
for this purpose.
In the process of manufacturing earthenware gully traps and similar articles
with moulds as at present employed, cutting and squaring is necessary to get the
top of the trap or article to its proper dimensions. In carrying out the process with
moulds constructed according to my invention, such cutting and squaring is
unnecessary. Thereby considerable economy in time and labor is effected, the trap
or other article being turned out quite complete from the mould.
An additional advantage obtained by the employment of my improved mould is
that the mould itself lasts very much longer than moulds hitherto used.
In the ordinary mould the top simply makes the inside of the gully cap, but my
new top makes the cap altogether. In the old style the sides of the mould are run
to face right to top of the cap, and when both sides have been run, a plaster top is
run on, sometimes one wooden top being used to form the socket. In my mould
the wooden top is made to form the whole cap of the gully. One wooden core
forms the socket, and an outer wooden frame keeps the core in place, and completes
the cap of the gully. This is placed on the gully model, and the two halves of the
plaster mould then run, enclosing not only the gully model, but also part of the cap
mould to the level of top of the gully cap. The upper portion of the cap mould
being above the plaster sides, enables it to be freed, when made, by means of
handles at the sides. The outside wooden frame is first lifted out, then the inner
core, leaving the cap perfectly free, so that being level with the plaster sides, it
can be easily turned out. This new method offers many advantages. By the old
mode in pressing the gully in the mould, the sides are made to top of the cap, clay
is then put on the top forming socket, and then wedged down on the sides.
The clay very frequently gets between the top of the mould, and the sides
making them misshapen and as the moulds get worn, the top will wedge too much
on one side, thus causing one side of the cap to be twice as thick as the other.
These defects are impossible with my new mould, as the plaster sides make the
gully to the bottom of the cap. The cap is then made in the wooden mould which
has been previously carefully oiled, so that it will free easily. It is then placed
inside the plaster mould in its proper place, and the cap and the body of the gully
gently spliced together.
The accompanying drawing shows various views of my improved mould,
Fig. 1 being a front view showing the two halves of the plaster part of the
mould.
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Fig. 2 is a side view a of one of the halves of the mould it also shows a section
of the wooden core b for forming the socket, and also of the wooden frame c which
keeps it in place.

page_text: is a plan of the moun
Fig. 4 a perspective view of the under side of the socket core band frame c, and
Fig. 5 perspective views of b and c when separated. d are the handles for lifting
the frame c.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
CLAIMS.
1. The combination of parts together forming the improved gully trap mould,
substantially as described in the above Specification, and exemplified in the
accompanying drawings.
2. In moulds for making glazed earthenware gully traps aud the like, the
wooden socket core and surrounding wooden frame, substantially as described in
the above Specification, and exemplified in the accompanying drawings.
Dated this 19th day of December 1895.
HUGHES & YOUNG,
23 Coleman Street, London, E.C., Agents for the Applicant.