Improvements in Pneumatic Tyres for Carriage Wheels.
Year: 1896

page_text: Date of Application, 28th Mar., 1896
Complete Specification Left, 24th Dec., 1896-Accepted, 13th Mar., 1897
Improvements in Pneumatic Tyres for Carriage Wheels.
I, HEINRICH WILHELM BRUNING, of Neumünster, Holstein, Germany,
Leather Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved pneumatic tyre for carriage-wheels as I
shall describe referring to the accompanying drawings.
Figs. 1 and 2 are cross sections of the felloe and tyre shewing two forms according
to this invention.
The tyre comprises two minerally tanned leather strips a¹ and a', which are
placed one over the other and firmly connected with each other by cementing,
sewing or otherwise.
The outer strip as is provided with a strong rubber cover 6 which is also secured
to this leather strip by cementing or by vulcanizing.
The inner strip a' (Fig. 1) is considerably wider than the outer strip a², and it is
folded twice over the edge of a2 and 6 so that the borders of the two strips lie close
to each other forming thickened parts c which are strengthened by cords d, or the
like imbedded in the folds.
In the somewhat modified construction shewn in Fig. 2 the outer strip a' is made
wider than the inner strip a' and is folded twice forming loops c enclosing bands d'.
In this arrangement the inner strip a' may be widened along one side, so that a
lateral flap a is formed, which, when the tyre is engaged in the groove, lies over
the space between the edges of the loops c.
In the circumference of the felloe fis formed a groove, the sides of which are
under-cut so that their edges g overlap the loops c of the tyre and hold them fast.
The interior of the tyre forms the space for the pneumatic tube of india-rubber,
which is not shewn, being of the usual kind, and which is fully protected by the
leather strips, which, while they are very flexible, are very tough and cannot easily
be punctured or cut, so that the pneumatic tube can not be injured by glass, sharp
stones, nails or the like.
Dated this 28th day of March 1896.
ABEL & IMRAY,
Agents for the Applicant.
I, HEINRICH WILHELM BRÜNING, of Neumünster, Holstein, Germany,
Leather Manufacturer, 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 pneumatic tyre for carriage-wheels as I
shall describe referring to the drawings accompanying my Provisional Specification.
Figs. 1 and 2 are cross sections of the felloe and tyre shewing two forms
according to this invention.

page_text: The tyre comprises two minerally tanned leather strips a¹ and a³, which are placed
one over the other and firmly connected with each other by cementing, sewing or
otherwise.
The outer strip a³ is provided with a strong rubber cover b which is also secured
to this leather strip by cementing or by vulcanizing.
The inner strip a' (Fig. 1) is considerably wider than the outer strip a², and it is
folded twice over the edge of a and b so that the borders of the two strips lie close
to each other forming thickened parts c which are strengthened by cords d, or the
like imbedded in the folds.
In the somewhat modified construction shewn in Fig. 2 the outer strip a² is made
wider than the inner strip a¹ and is folded twice forming loops c enclosing bands d¹.
In this arrangement the inner strip a' may be widened along one side so that a
lateral flap a³ is formed, which, when the tyre is engaged in the groove, lies over
the space between the edges of the loops c.
In the circumference of the felloe is formed a groove, the sides of which are
under-cut so that their edges g overlap the loops e of the tyre and hold them
fast.
The interior of the tyre forms the space for the pneumatic tube of india-rubber,
which is not shewn, being of the usual kind, and which is fully protected by the
leather strips, which, while they are very flexible, are very tough and cannot easily
be punctured or cut, so that the pneumatic tube can not be injured by glase, sharp
stones, nails or the like.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Pneumatic tyres for carriage wheels consisting of a minerally tanned leather strip
provided with an outer rubber covering and having the longitudinal edges turned
over or rolled up one or more times, thus forming bosses or thick edges for the
purpose of securing the leather strip in the felloe, such bosses being if necessary
strengthened by imbedding in them cords bands, or the like, substantially as
described with reference to the drawings.
Dated this 24th day of December 1896.
ABEL & IMRAY,
Agents for the Applicant.