An Improvement in Fixing Pneumatic Tyres to Rims.
Year: 1893

page_text: Date of Application, 27th Nov., 1893
Complete Specification Left. 30th Nov.. 1893-Accepted. 3rd Mar.. 1894
PROVISIONAL SPECIFICATION.
An Improvement in Fixing Pneumatic Tyres to Rims.
PERCY ARTHUR FRANK PRATT of 188 Great Portland Street, in the County
of London do hereby declare the nature of this invention to be as follows:--
My invention consists of an improved method for fixing pneumatic tyres to rims
It consists of an oval or oblong metal tube capped one end, with hole bored
through cap-with oval or oblong nut to fit tube-nut having holes each end to
hold wires or like and threaded hole in centre to fit screw on bolt. Bolt passes.
through hole in cap of tube and is used to pull nut down tube thus tightening wires
attached to same and fastening both edges of outer cover of tyre at same time.
The other end of wires or like being attached to small metal rivet shaped bolts.
which pass through rim and are fastened outside same.
27th November 1893.
PERCY ARTHUR FRANK PRATT.
COMPLETE SPECIFICATION.
An Improvement in Fixing Pneumatic Tyres to Rims.
I, PERCY ARTHUR FRANK PRATT of 188 Great Portland Street in the County
of London, W. Cabinet Maker 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 is to be used in the fixing of pneumatic tyres to the rims of
vehicles by tightening wires that hold same.
It consists of an oval, oblong, square, or like shaped metal tube capped one end
with hole in cap, the other end spreading out to prevent it pulling through rim to.
which it is soldered. With nut of same shape as tube to fit inside same, said nut
being pierced by three holes, centre hole tapped for screw bolt to work through-
other holes screw tapped for wires to screw into-said bolt passing through hole in
cap of tube up to bolts' head and screwing into centre hole in nut. By turning
bolt nut is drawn through or down tube dragging wires with it thus tightening
wires, which run round each side of tyre, in rim and fixing same. The other end
of wires which attach tyre to rim have loops in wires or small rings attached to.
wires through which small rivet shaped bolts pass and go right through holes in rim.
and are fastened by nuts outside same.

page_text: Figure 6 shows rings or loops E, E, on ends of wires G.
Figure 7 shows plan and elevation of bolt D which is used to fusten loops E
to rim.
L
EXPLANATION OF FIGURE 8.
The type of pneumatic tyre which iny invention is intended to fix, consists of an
endless india-rubber bladder or inner tube, into which air is forced, laid on rim of
wheel and covered with an endless arch shaped jacket or outer cover, made of
canvas covered on outer side with india-rubber.
This canvas cover has a small endless tube woven on each edge, through which
the wires G run one on each side with their ends E, E, E', E' sticking out (as shown
in Figure 8) ends E, E, (those farthest away from tube C) being fastened by
means of bolts D to rim H by holes in same.
Ends E, E, being secured cover F is pulled down into its place in rim H (over inner
tube not shown) by placing loops E2, E3 over books on short wires I (said wires being
screwed into or otherwise connected with nut B) putting nut B in end of tube
that is soldered in rim H passing bolt A through hole in cap of tube C screwing
bolt A through nut B and thus dragging nut B (with short wires I connected to
same and main wires G hooked onto wires I) along tube C.
Edges of cover F, through which wires G run, are thus fastened down tightly
on rim H.
Having now particularly described and ascertained the nature of my said
invention and the manner the same is to be performed, I declare what I claim is
1. The tightening of wires or metal bands on either one or both sides of outer
covers of pneumatic tyres by means of one bolt, and nut in a metal tube.
2. The oval, oblong, square or like shaped metal nut and curved hooks, or curved
loops, screwed into, hinged to, or otherwise attached to same..
3. The fastening of one end of each wire or metal band to rim by means of a
bolt passing through loops or rings on same, or through holes bored in metal band,
and through rim and being nutted outside same. (This end of wire or band could
be fastened in any other way as it holds but does not tighten wire.).
Dated this 29th day of November 1893..
PERCY ARTHUR FRANK PRATT.