Year: 1897

page_text: Date of Application, 19th Oct., 1897-Accepted, 4th Dec., 1897
I, JOHN DEMPSTER PARKER, of 1111 Cedar Street San Diego. in the County of
San Diego and State of California, United States of America, Post Chaplain,
United States Army, Retired do hereby declare the nature of my invention, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement.
It is the principal object of this invention to provide a pneumatic cushion for
bicycle wheels which will be effectively protected from puncture and other injury,
and whereby every benefit of a cushion will be obtained and the usual disadvantages
thereof avoided.
.
This and other desirable objects I attain by means of the device illustrated in
the accompanying drawings, and which will be more fully described hereinafter
and finally embodied in the claims.
Reference is to be had to the accompanying drawings forming a part of this
specification, in which similar characters of reference indicate corresponding parts
in both the Figures.
Figure 1 is a side elevation of a portion of a bicycle wheel showing my improve-
ments applied thereto; and
Figure 2 is a cross section thereof on the line of Figure 1.
The reference numeral 10 indicates the rim of the wheel and 11 the spokes
thereof, the rim being of the usual concave form and secured to the spokes by any
approved means. Seated in the concave of the rim 10 is the pneumatic cushion 12,
which may also be of any known construction.
13 indicates a concave and circular strip or band of flexible steel, which has a
corrugated and convex outer surface and which has its edges formed with
notches 14 whereby it is possible to readily bend the otherwise rigid band, and
whereby the same is given that pliability necessary to its effective operation.
Formed on the edges of the band 13 and at equidistant points throughout the
extent thereof, are the projections 15 which have the straps 16 attached thereto.
By these means the band 13 is secured in place. I have shown the straps 16 as
the means for holding the band in place, but I desire it to be understood that I do
not limit myself to the particular means shown, as the same may and indeed will
be variously changed and substituted in practice.
The end 17 of the band 13 is reduced in width and thickness and passed through
a loop or band 18 on the inner side of the opposite end of the band 13, whereby the
end 17 is slidably connected to the companion end, as may be readily seen by
reference to Figure 1 of the drawings. By reason of this slidable connection at
the ends of the band, the band is allowed to give inwardly and to contract and
expand with the tube 12.
Thus it will be seen that by means of the band 13 the tube 12 is protected from
puncture and from all other injury, and is permitted to operate solely in the

page_text: capacity of a cushion. It will also be observed that by reason of the peculiar con-
struction of the band 13, the same is permitted to move freely and without
hindrance to the operation of the tube.
If so desired the sides of the band may be provided with projections which are
to be extended up around the inner sides of the cushion, so as to prevent the
displacement of the same.
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. A protector for wheel tyres or cushions, consisting of a band adapted to be
applied to the outside of the tyre or cushion, and provided with longitudinal
flanges having at their ends notches which remain open when the protector is in
position on the tyre or cushion, the tread surface of the protector being corrugated
transversely, substantially as described.
2. A protector for wheel tyres or cushions, the protector consisting of a flexible
integral band curved to embrace the tyre or cushion and corrugated transversely
and provided with notches in its edges whereby it may freely bend, the band
having means for slidably connecting its ends whereby the ends may move freely
on each other and accommodate the band to the varying positions of the tyre or
cushion, substantially as described.
Dated this 19th day of October 1807
A. M. & WM. CLARK,
Chartered Patent Agents, 53 Chancery Lane London.