Improvements in Tyres for Bicycles and other Carriages.
Year: 1896

page_text: Date of Application, 28th July, 1896
Complete Specification Left, 24th Aug., 1896-Accepted, 3rd Oct., 1896
PROVISIONAL SPECIFICATION.
Improvements in Tyres for Bicycles and other Carriages.
I JOHN MACINTOSH MACINTOSH of Woolhampton in the County of
Berkshire Artist do hereby declare the nature of this invention to
follows:-
In making tyres in accordance with one part of my invention I make an inner
core composed of what is known in the india-rubber trade as "sponge rubber." which
contains a number of small air holes or cells. This core is encased or covered by
an outer tube of india-rubber or other suitable material so as to fit closely over it
and confine the air in the small holes or cells. In place of the said "sponge
rubber" a solid inner core may be used having formed in or on it suitable small
vessels cells or receptacles for containing air the whole being covered as aforesaid.
Another part of my invention consists in the use of an air tube of a lesser
diameter than is usually employed in the manufacture of pneumatic tyres which
tube I cover or envelope with sponge rubber or rubber containing a number of air
holes or cells. The whole is again covered with an outer covering of india
rubber or its compounds or other suitable material and made up into tyres and
applied in the usual way.
Dated this 28th day of July 1896.
JOHN MACINTOSH MACINTOSH.
I JOHN MACINTOSH MACINTOSH of Woolhampton in the County of
Berkshire Artist 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 :-
In making tyres in accordance with one part of my invention I make an inner
core composed of what is known in the india rubber trade as sponge rubber which
contains a number of small holes or cells. This core ie encased or covered by an
outer covering of india rubber or other suitable material so as to fit closely over
it and confine the air in the small holes or cells. In place of the said sponge
rubber a solid inner core may be used having formed in or on it suitable small vessels
cells or receptacles for containing air the whole being covered as aforesaid. If
desired I cause the tyres so made to be vulcanised in moulds as is well understood.
Another part of my invention consists in the use of an air tube of a lesser
diameter than is usually employed in the manufacture of pneumatic tyres which
I cover or envelope with sponge rubber or rubber containing a number of air
holes or cells. The whole is again covered with an outer covering of india rubber
or its compounds or other suitable material and made up into tyres and applied in
the usual way or I cause a layer of sponge india-rubber or india rubber containing
air holes or cells to be affixed or joined to the inner or under side of the covering
which envelopes or partly envelopes the air tube the whole being vulcanised in the
ordinary way.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manuer the same is to be performed I declare that what I
claim is
1. The employment in the manufacture of tyres for bicycles or other carriages
of an inner core composed of sponge india-rubber or its compounds or india-rubber
containing air holes or cells enveloped or covered with an outer covering of india
rubber or its compounds or other suitable material so as to hermetically seal or
confine the air in the holes or cells. The tyres so made being vulcanised in the
usual way or by the employment of moulds.
2. The employment in the manufacture of tyres of sponge rubber or india rubber
or its compounds containing air holes or cells between the air tube used in
pneumatic tyres and the outer covering as herein before described.
Dated this 24th day of August 1896.
JOHN MACINTOSH MACINTOSH.