Improvements in Wheels for Cycles and other Road Vehicles.
Year: 1894

page_text: Date of Application, 12th Feb., 1894
Complete Specification Left, 12th Nov., 1894-Accepted, 15th Dec., 1894
Improvements in Wheels for Cycles and other Road Vehicles.
WILLIAM LAWRENCE LIVERMORE 127 Mauldeth Road Fallowfield Manchester
Inventor and Engineer do hereby declare, the nature of this invention to be as
follows
I employ a rim having two paralel dove-tail groves runing round its surface or
sides and a tyre with an outer tube or protecting cover having, at both sides, edges
or wings of increased thickness to correspond with the groves in the wheel.
"
For pneumatic tyres the groves may be an inch apart or whatever distance may
be found most efficient in preventing what is technically known as rolling" and
the covers may concist of the usual protecting cover for the air-tube and an outer
cover of canvas or corrugated rubber and canvas having also edges of increased
thickness to correspond with the dove-tail groves in the rim.
Dated this Tenth day of February 1894.
COMPLETE SPECIFICATION.
Improvements in Wheels for Cycles and other Road Vehicles.
1 WILLIAM LAWRENCE LIVERMORE Inventor and Engineer 17 Shaw Road
Heaton Chapel Stockport late of 127 Mauldeth Road Fallowfield 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 :—
A rim having two dove-tail grooves running round its face or sides and an outer
tube or protecting cover having at both sides two edges or wings of increased
thickness to correspond with the grooves in the rim or tire of the wheel.
For pneumatic tyres the groves in the rim may be parallel and an inch apart, or
whatever distance may be found most efficient in preventing what is technically
known as "rolling" and the covers may consist of the usual protecting jacket for
the air tube with edges or wings of increased thickness corresponding to the dove-tail
grooves in the rim, and an outer cover of canvas or corrugated rubber having also
edges of increased thickness to correspond with the dove-tail grooves in the rim.
In carrying out my invention I use by preference, a rim formed with two parallel
oval shaped grooves as shown in Fig. I of the accompanying illustration
but it is obvious that other forms of grooves may be employed either square, or
rectangular as shown in Fig. II providing always that the opening only large
enough for one thickened edge, be it round or square or of whatever shape, to pass
through at one time.
Fig. III shows the method of attaching the tyre to the rim by means of the four
thickened edges of the outer cover or covers: A' A' is first put into position
enclosing the deflated inner tube the flaps or wings B, B, covering the rim and so
protecting the inner tube from injury from contact with the spoke ends and reducing
the liability of the tyre to creep.' A' A' being pushed back into the enlarged
cavity, A2 A2 is next pushed into position and the inner tube inflated.
<<
"
To detach the tyre from the rim the inner tube is first deflated then a hooked
fork is inserted in two small eylet holes at D, and A2 drawn partly out; this once
started the rest is easy and rapid.

page_text: The outer cover may be in two separate parts or may be cemented together over
the tread from C to C leaving only the ends loose.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
-claim is :-
1. A rim or tire having two dove-tail parallel grooves running round its
*periphery.
2. A cover or covers having four thickened edges to suite the form of grooves in
the rim or tire.
Dated this 10th day of November 1894.
W. L. LIVERMORE.