An Improvement in India Rubber Water Closet Cones.
Year: 1898

page_text: An Improvement in India Rubber Water Closet Cones.
I, JOHN HANCOCK NUNN, trading as James Lyne Hancock, India Rubber Manu-
facturer, 266, Goswell Road, London, E.C., do hereby declare the nature of this:
invention to be as follows:-
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The objects of this invention are, first, to make india rubber cones, known and
used as water closet cones for the purpose of making a connection or joint between
the closet pan and the pipes, of such a design and description, that the same cone.
can be used either for a straight joint or for an elbow or curved joint without
kinking or materially decreasing the flow in the joint, and secondly, to cover the
outside of the cones with elastic cotton, canvas or twill cloth, specially prepared
to make it adhere permanently to the outside of the india rubber cone, thereby
cinsiderably strengthening it, so that it cannot possibly split or burst under the
ordinary conditions of use.
These objects I accomplish by having a wood or metal block or model turned
to the exact size and shape required, having one or two (or more if necessary)
grooves turned on the smaller end, preferably, and running completely round the
whole circumference; these grooves when reproduced in the finished cone I call
adaptable grooves because they allow of the cone adapting itself to the position
of the joint which may be curved or otherwise, and to any extra rush of water.
This block or model I cover evenly with unvulcanized rubber of suitable thick-
ness by any known method then I cover the rubber with the specially prepared
twill or cloth tightly, so that the rubber with the adherent cloth takes the shape
of the grooved block or model, the whole is then vulcanized, either upon or without
the block, in the usual way so that the desired shape is retained or I may vulcanize
the cone when made as already described in a metal mould shaped to fit over the
cone.
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page_text: 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 manufacture of elastic couplings used for connect-
ing together water-closet pans with their flushing pipes, and commonly known
as water-closet cones. The object of this invention is two-fold, first, to adapt
the cone for use in connecting the pan, either with a straight flushing pipe, or an
elbow or curved pipe, without kinking or decreasing the aperture for the water-
supply. Secondly, to manufacture the elastic cone of such strength that it cannot
possibly split or burst under the ordinary conditions of use.
In order to maintain the capacity of the flush, although the elastic coupling
may be bent to suit the requirements of the case, I form, in the neck of the closet
cone, annular corrugations or grooves, which will yield to any lateral pressure
put upon the coupling by the closet-fitter, in joining up the pan with the Hushing
pipe, and thus remove any tendency in the neck to contract its internal diameter.
In the accompanying drawing, this improved closet cone is shown in side view
at Fig. 1, the neck of the cone having two annular corrugations, a, a, formed in it.
Fig. 2 is a longitudinal section of the closet cone, shewing two annular grooves
formed in the neck by the corrugations a a.
These corrugations are free to yield to any lateral strain, as, for example,, when
an angular or curved pipe is required to be coupled with the closet pan, instead
of a straight pipe.
Fig. 3 is a diagram, on a reduced scale, illustrating the give or yielding
character of the corrugated neck.
In manufacturing closet cones according to my invention, I mould the same in
plastic rubber upon a moulding block corresponding in shape with the internal
capacity desired for the cone. The block I cover evenly with india-rubber com-
pound of suitable thickness, by any approved method, and over this I apply a
covering of the well-known yielding twill or cloth used in the manufacture of
india rubber articles, the fabric being prepared as usual, and tightly strained over
the plastic compound, so as to take the shape thereof. The edges or extremities
of the coupling I finish by a lapped edging of compound rubber. The article
thus prepared I vulcanize, either upon or without the block, in the usual manner,
when it will retain the desired shape, or I may vulcanize the cone when made, as
already described, in a metal mould shaped to fit over the cone.
This improved coupling, it will be understood, admits of being applied with the
same facility as the ordinary elastic water-closet cone.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I wish it to be under-
stood that I am aware of the Specification of Letters Patent, No. 1377, A.D. 1898,
granted to John Jones, and I do not claim anything described and claimed therein,
but I declare that what I claim is:-
The manufacture of water-closet cones with an internally grooved or corrugated
neck as and for the purpose above set forth, and the covering of such water-closet
cones with a yielding fabric forming an integral part thereof as described.
Dated this 8th day of June 1899.
NEWTON & SON,
Agents for the Applicant.