Improvements in Moulds for Moulding India Rubber Tyres.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Moulds for Moulding India Rubber Tyres.
I, JOHN HOPPER, of 75, Britannia Road, Fulham, in the County of London,
Manager, do hereby declare the nature of this invention to be as follows:-
--
My invention relates to improvements in moulds for moulding india rubber
tyres, which consists of moulds of iron made in two halves or otherwise for casting
solid rubber tyres in a flat or conical shaped spiral form, so that the tyre when
cast may be pulled out and fitted to the rim of a wheel of any size.
The flat spiral iron mould is constructed in two halves with a spiral channel
or groove of any shape or section cut in each side and the whole bolted or other-
wise fixed together in order to cast the solid india rubber tyre into a length of
40 feet (more or less). Any length may be cut and fitted to the rim of any size
wheel.
If preferable the spiral iron mould could be constructed on a cone or any other
suitable shape.
Dated this 16th day of Navamban 1907
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.
Improvements in Moulds for Moulding India Rubber Tyres.
I, JOHN HOPPER, of 75, Britannia Road, Fulham, in the County of London,
Manager, 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:-
-
My invention relates to improvements in moulds for vulcanizing india rubber
tyres, which consists of moulds of iron made in two halves or otherwise for vulcan-
izing solid rubber tyres in a flat shaped spiral form or coil so that the tyre when
vulcanized may be pulled out and fitted to the rim of a wheel of any size.
And in order that my invention may be thoroughly understood, I now proceed
to describe the accompanying drawing thereof, reference, being had to letters
and figures marked thereon.
Fig. 1, is a plan of the half mould showing the flat coil or spiral channel or
groove with bolt holes and lugs.
Fig. 2, is half of the mould in elevation and half in section.

page_text: Fig. 3, is an alternate plan of the half mould shewing the flat coil channel or
groove.
The flat coil iron mould is constructed in two halves a and b with a coil channel
or groove of any shape or section cut in each side and the whole bolted through
lugs d or otherwise fixed together in order to vulcanize the solid india rubber
tyre into a length of 40 feet (more or less). Any length may be cut and fitted to
the rim of any size wheel.
The object of the mould is to compress the tyre in such a manner that it has
greater wearing powers than any ordinary tyres which are made in the straight
now in common use.
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:-
1. In moulds for vulcanizing india rubber tyres, the combination of a flat
coil shaped channel or groove cut in a box consisting of two halves bolted together,
substantially as herein described and according to Fig's. 1, and 2, of the accom-
panying drawing.
2. In moulds for vulcanizing india rubber tyres, the combination of a flat coil
shaped channel or groove cut in a box consisting of two halves bolted together,
substantially as herein described and according to Fig. 3, of the accompanying
drawing.
1000
J. P. BAYLY,
18. Fulham Place, London, W. Agent for the Applicant.