A Novel Construction of Cover for the Air-vessels of Pneumatic Tyres, and Means for Fastening such Tyres on Wheels.
Year: 1893

page_text: Date of Application, 13th May, 1893
Complete Specification Left. 24th May, 1893-Accepted, 1st July, 1893
PROVISIONAL SPECIFICATION.
A Novel Construction of Cover for the Air-vessels of Pneumatic
Tyres, and Means for Fastening such Tyres on Wheels.
I, EDMUND HILL, of 45 Essex Street, Strand, County of London, Wood
Engraver, do hereby declare the nature of this invention to be as follows:-
This invention has for object, the employment of flat, or comparatively flat strips
of steel, or it may be of other metal or material in band form within the edges of
the canvas forming part of the cover of a pneumatic tyre to lie next each other in
the hollow, or other shaped surface of the rim, that part of the cover containing the
strips being forced by the air pressure into close contact circumferentially with the
rim, and the pneumatic tyre secured in place without fasteners of any kind. One
end of each strip overlaps the other, and both ends have free play to permit of the
circle contracting under the pressure of the air to gradually reduce the diameter
as the pressure increases to bind the strips quite close and fixed on the periphery
independently of grip against the sides or edges of the rim, whether raised, or
otherwise.
Dated this form may or may
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Edmund Hill.
H.
GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Edmund Hill.
COMPLETE SPECIFICATION.
A Novel Construction of Cover for the Air-vessels of Pneumatic
Tyres, and Means for Fastening such Tyres on Wheels.
I, EDMUND HILL, of 45 Essex Street, Strand, County of London, Wood
Engraver, 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 object, the employment of flat, or comparatively flat strips
of steel, or it may be of other metal or material in band form within the edges of
the canvas forming part of the cover of a pneumatic tyre to lie next each other in
the hollow, or other shaped surface of the rim, that part of the cover containing the
strips being forced by the air pressure into close contact circumferentially with
the rim and the pneumatic tyre secured in place without fasteners of any kind, one
end of each strip overlaps the other, and both ends have free play to permit of
the circle contracting under the pressure of the air to gradually reduce the
diameter as the pressure increases to bind the strips quite close and fixed on the
periphery independently of grip against the sides, or edges of the rim, whether
raised, or otherwise.
My invention will be understood from the annexed drawings, in which
Figure 1 is a section of a complete tyre of the pneumatic system wheel.
Figure 2 a part section of pneumatic tube cover, and enclosed bands.
Figure 3 diagram of wheel in section to show by arrows that the pressure is
centrally and circumferentially on the rim's periphery.
Figure 4 represents a flat band with free ends for overlap by contraction under
air pressure of the pneumatic tube.
A is the metal rim shown with curved hollow periphery without curled or lipped
edges, as is usual. B is the rubber cover on canvas C, both edges of which are
broader than is customary, and each edge is folded to enclose a flat, or nearly flat
band D, either by sewing the canvas, or by cementing it preferably with the fold

page_text: to the inuer side, as indicated, (see Figures 1 and 2). E is the pneumatic tube,
which when expanded by air by the well know appliances, is forced into close
contact with the cover canvas all"'round the inner surface, the pressure on the
canvas edges with the enclosed bands being sufficient to fix them to the periphery
of the rim against side movement- but not against circumferential movement of the
bands, which as they contract, are caused to grip tighter and tighter on the rim,
and become rigidly fixed by the circumferential pressure without fastenings of
any kind.
I have shown a plain edged hollow rim for the use of my invention, and this I
prefer for the purpose, but lipped beaded, curled, or other edged rims may be
employed therewith, if desired.
The rim may be recessed for the metal band canvas parts of the cover to lodge
in, as at Figure 5.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The method of attaching tyres to wheels by means of bands of steel, or other
suitable material as described and illustrated.
2. Enclosing flat or equivalent strip material in the canvas edges of the cover
of a pneumatic tyre, and fixing, or attaching the tyre to the rim of the wheel by
the air pressure of the pneumatic tube, as set forth."
The 23rd day of Mon 1803
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Edmund Hill.