Improvements in and relating to Rubber Wheel Tires.
Year: 1892

page_text: Date of Application, 26th Mar., 1892
Complete Specification Left, 7th Dec., 1892-Accepted, 7th Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Rubber Wheel Tires.
1, REGINALD HADDAN of the firm of Herbert & Co. Patent Agents of
18 Buckingham Street Strand W.C. London, do hereby declare the nature of this
invention a communication to me from abroad by the firm of Metzeler & Cie.,
Rubber Manufacturers of 131 Westendstrasse Munich in the Empire of Germany,
to be as follows:-
The object of this invention is to combine the advantages of a solid rubber tire
with those of the cushion or pneumatic rubber tires, in a more effectual manner
than has heretofore been done.
The improved tire is made of an arched or crescent shape of considerable thickness
in the sole and so curved round that the horns of the crescent, the side edges of
the tire, also of considerable thickness are curved inwards more or less towards
each other and the whole cross section of the tire is considerably greater than a
semicircle. The edges or horns of the tire are provided cach with a groove to
receive the metal rim of the wheel, the rim being of the usual hollow channel
shape, either solid or hollow in construction. The grooves are substantially
parallel with the outer surface of the tire and extend so far into the material of
the tire that the horns of the latter have a secure and broad bearing within the
hollow of the rim, while a portion of the tire covers over the edge of the rim
and lies on the outside of the latter. The tire may be fixed with cement and
when in place is very secure since the thrust on the tire tends to press the edges
more firmly onto the edges of the rim. The latter also is protected from damage
by the tire.
The hollow centre of the tire gives a good cushion bearing, while its thickness
prevents practically the danger of puncturing.
Dated this 26th day of March 1892.
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Rubber Wheel Tires.
1 REGINALD HADDAN of the firm of Herbert & Co., Patent Agents of
18 Buckingham Street Strand W.C. London do hereby declare the nature of this
invention a communication to me from abroad by the firm of Metzeler & Co.
Rubber Manufacturers of 131 Westendstrasse, Munich in the Empire of Germany,
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
The object of this invention is to combine the advantages of a solid rubber tire
with those of the cushion or pneumatic rubber tires in a more effectual manner
than has heretofore been done.
The improved tire is made of an arched or crescent shape of considerable
thickness in the sole and so curved round that the horns of the crescent (the side
edges of the tire) also of considerable thickness are curved inwards more or less
towards each other and the whole cross section of the tire is considerably greater
than a semicircle. The edges or horns of the tire are provided each with a groove
to receive the metal rim of the wheel, the rim being of the usual hollow channel
shape, either solid or hollow in construction. The grooves are substantially
parallel with the outer surface of the tire and extend so far into the material of
D

page_text: the tire, that the horns of the latter have a secure and broad bearing within the
hollow of the rim, while a portion of the tire covers over the edge of the rim
and lies on the outside of the latter. The tire may be fixed with cement and
when in place is very secure since the thrust on the tire tends to press the edges
more firmly into the edges of the rim. The latter also is protected by the tire
from damage. The hollow centre of the tire gives a good cushion bearing, while
its thickness practically prevents the danger of puncturing.
In the annexed drawing
Fig. 1 is a cross section of the improved tire in its usual position or shape when
not fixed to the rim.
Fig. 2 is a cross section of the rim with tire fixed thereon.
a is the tire, the general shape and thickness of which is as shown.
c are the
grooves therein. The method of fixing the tire in the rim b will be apparent from
Fig. 2.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what 1
claim is:
A tire a the cross section of which is in the form of a crescent with grooves cc
in the horns thereof, whereby the tire may be fixed with parts within the rim b
of a wheel and with parts overlapping the rim substantially in the manner
described and illustrated.
ated the 7th day of December 1892.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W., Agents to Applicant.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W., Agents to Applicant.