An Improved Pneumatic Tyre and Rims for Cycle and other Wheels.
Year: 1892

page_text: Date of Application, 14th Apr., 1892
Complete Specification Left. 14th Jan., 1893—Accepted, 25th Feb., 1893
PROVISIONAL SPECIFICATION.
An Improved Pneumatic Tyre and Rims for Cycle and other
Wheels.
ALEXANDER NICHOLSON Engineer, 52 Mary Street Dublin, ARTHUR
WHICKER, Commercial Traveller 10 Victoria Terrace Clontarf, Dublin, do
hereby declare the nature of this invention to be as follows:-
To have the wheel suspended from and on the top or upper part of a pneumatic-
tyre and a rim, by having a metallic or other, rim or ring around which is placed
the air tube, both being held in the desired position inside the cover of tyre which
is attached to rim of wheel, said rim of wheel to have sufficient clearance when
the tyre is in action not to rest on the inside rim or ring which carries air tube.
Dated this 12th dex of April 1892.
ALEXANDER NICHOLSON
ARTHUR WHICKER.
COMPLETE SPECIFICATION.
An Improved Pneumatic Tyre and Rims for Cycle and other
Wheels.
ALEXANDER NICHOLSON 52 Mary Street Dublin Engineer, ARTHUR
WHICKER 10 Victoria Terrace Clontarf Co. Dublin Commercial Traveller, 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 has for its object to make wheels run more easily than heretofore
by suspending a wheel in a rim and inflated air tube by a suitable cover passing
over the outer rim and airtube and attached by both edges to the rim of the wheel
by any suitable means, preferably that shown in Specification of Patent No. 740-
A.D. 1892.
In order that the nature of our said invention may be readily understood, we
will now describe the same with reference to accompanying drawings, which.
illustrate how our invention is carried into effect.
Fig. 1 shows a cross section.
Fig. 2, a longitudinal section of a segment of the rim and tyre of a wheel,.
constructed according to this invention.
Like letters of reference are employed to indicate corresponding parts in each.
figure.
In Figures 1 and 2, A is the rim of the wheel to which the spokes are attached,.
B, the outer rubber protected cover, attached to the rim A at B 1-B1 as described
in the above mentioned Specification-C the airtube, D the outer or larger rim,
E canvas casing, E' E' flaps for securing it to the rim D by being laced or
sewn at F.
In Fig. 2 is shown a means for preventing the outer rim D from moving round
the rim of the wheel A, G being a thin strip of steel secured to the rim A by
a screw H and to the rim D by a screw 1.
In Fig. 2 is also shown a means for preventing the ingress of mud where the
valve passes through the rim A, K being the stem of any suitable valve attached
to the rim D and airtube C in the usual manner, and having two extra nuts L
and M between which is secured a rubber washer N, which is also attached to the
rim A by a number of screws as shown at O and P.

page_text: The construction of this invention can be modified in various ways without
departing from the nature of the invention, as we can use rims of a variety of
sections, and the canvas casing E need not be attached to the rim D and we also
prefer to make the cover B to be one with or attached to the canvas casing E.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1st. For cycle and other wheels to have two rims, the inner or smaller one in
diameter or its equivalent to which the spokes or their equivalents are attached,
to be suspended from a suitable cover, passing over an inflated tube or pneumatic
tyre carried by an outer or larger rim.
2nd. For the arrangement of the rims and tyres of cycle and other wheels to
have the weight of the rider and machine, or part of it, suspended so as to depress
and compress the airtube at the upper part of the wheel as it rolls forwards.
3rd. For the arrangement of the rims and tyres of cycle and other wheels
substantially as described with reference to the drawings.
Dated this 12th day of January 1893.
ALEXANDER NICHOLSON.
ARTHUR WHICKER.