Improvements in Wheels for Velocipedes and other Vehicles.
Year: 1893

page_text: Date of Application, 26th Sept., 1893
Complete Specification Left, 29th May, 1894-Accepted, 7th July, 1894
PROVISIONAL SPECIFICATION.
Improvements in Wheels for Velocipedes and other Vehicles.
I, ELLIOTT BURRIS, of 57 Guildford Street, Russell Square, in the County
of Middlesex, Engineer, (a communication to me from abroad by Frank Perry
Share, of 331 McDonnough Street, Brooklyn, in the County and State of New
York,) do hereby declare the nature of this invention to be as follows:-
It has before been proposed to form a trough on each side of the metal rim of
the wheel to receive the edges of an outer tyre having a pneumatic tube within it,
the edges being secured in the troughs by wires placed above them means being
provided for tightening such wires so that the edges of the outer tyre may be
It has also been suggested to
brought to the bottom of the troughs or nearly so.
employ a concave rim and to have inextensible hoops of wire embedded in the edges
of the outer tyre the hoops being of less diameter than that of the outer edge of
the rim but of greater diameter than its middle so that if part of the hoop be
placed at the bottom of the concavity the remainder can be passed over the edge of
the rim the outer tyre being. then secured by the inflation of the inner tyre or
pneumatic tube such inflation forcing the hoops apart into contact with the
concave rim.
According to this invention I combine these two systems employing a rim having
a trough on each side as above described to receive the edges of the outer tyre and
an inextensible hoop of wire which may be either in the substance of the edge of
the outer tyre or lying above it such hoop being of greater diameter than the
bottom of the trough and of less diameter than its outer edge so that the hoop can
be inserted as above described. It will thus be seen that when the pneumatic tube
is equally inflated all round the hoop lies about midway in the depth of the trough.
In order to secure the hoop in this position so that it shall not when the pneumatic
tube is deformed by the weight upon the wheel I place stops at various points
preventing the hoop from moving radially inwards (or it may be outwards) at those
points. Such stops may consist of plates lying at the bottom of the trough and
capable of being moved outwards by radial screws working in holes in the bottom
of the trough or the stops may consist of screws parallel to the axis of the wheel
either above or below the wire and working in holes in the sides of the trough or
they may be packing pieces inserted or drawn in beneath the wire through holes in
the bottom of the trough.
'
COMPLETE SPECIFICATION.
Improvements in Wheels for Velocipedes and other Vehicles.
I ELLIOTT BURRIS of 57 Guildford Street Russell Square in the County of
Middlesex Engineer (a communication to me from abroad by Frank Perry Share
of 331 McDonough Street Brooklyn in the County and State of New York) 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:-
It has before been proposed to form a trough on each side of the metal rim of
the wheel to receive the edges of an outer tyre having a pneumatic tube within it

page_text: the edges being secured in the troughs by wires placed above them means being
provided for tightening such wires so that the edges of the outer tyre may be
brought to the bottom of the troughs or nearly so. It has also been suggested to
employ a concave rim & to have inextensible hoops of wire embedded in the edges
of the outer tyre the hoops being of less diameter than that of the outer edge of
the rim but of greater diameter than its middle so that if part of the hoop_be
placed at the bottom of the concavity the remainder can be passed over the edge
of the rim the outer tyre being then secured by the inflation of the inner tyre or
pneumatic tube such inflation forcing the hoops apart into contact with the
concave rim.
According to this invention I combine these two systems employing a rim
having a trough on each side as above described to receive the edges of the
outer tyre and an inextensible hoop of wire which may be either in the substance
of the edge of the outer tyre or lying above it such hoop being of greater
diameter than the bottom of the trough and of less diameter than its outer edge
so that the hoop can be inserted as above described. It will thus be seen that
when the pneumatic tube is equally inflated all round the hoop lies about midway
in the depth of the trough. In order to secure the hoop in this position so that
it shall not escape when the pneumatic tube is deformed by the weight upon the
wheel I place stops at various points preventing the hoop from moving radially
inwards (or it may be outwards) at those points. Such stops may consist of plates
lying at the bottom of the trough and capable of being moved outwards by radial
screws working in holes in the bottom of the trough or the stops may consist of
screws parallel to the axis of the wheel either above or below the wire and working
in holes in the sides of the trough or they may be packing pieces inserted at the
side as hereinafter described or drawn in beneath the wire through holes in the
bottom of the trough.
The drawing shews a transverse section of a wheel constructed according to this
invention.
The rim is preferably made in two parts a and b the spokes being fixed to the
part a whilet the part with the turned up sides of the part a forms a gutter on
each side of the rim. The top of the part beforms a bearing table for the air
tube c and keeps it out of contact with the heads of the spokes. d is the outer tyre
or cover and ee are wires fixed in its edges. The circumference of the circle
formed by either edge of the cover d is a trifle larger than the circumference of
the circle midway between the bottom of the gutter and the edge of the part a and
also as shewn it is less than the circumference of the table formed by the part b.
ffare two cords or tubes of india rubber inserted between the edges of the cover d
and the bottom of the troughs. The cords are preferably elastic and endless and
normally shorter than the circumference of the bottom of the trough so that when
in position they are stretched.
When the edge of the cover d has been put into the gutter as above described
the endless band is sprung over it so that it occupies the top of the trough.
If the cover d be now pulled at any point in such a manner as to tend to
make its edge escape from the trough the tension on the band will cause
it to draw into the trough at this point past the edge of the band. This
process is then continued all round the wheel and when the parts are in place
the tube c is inflated in the usual manner. A tape or other loop may be
secured to the band to assist in removing it again from the trough after the
tube c has been deflated.
I am aware that the combination of a rim having a trough at each side, an
air tube, a cover with inextensible edges and filling pieces for the troughs has
before been suggested. In this arrangement however the edges of the cover did
not lie within the troughs when the tube had been inflated their circumference
being greater than that of the top of the troughs. The filling pieces also occupied
the whole of the troughs. I wish it to be understood that I make no claim to this
arrangement.

page_text: 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. The combination of a rim having a trough at each side, an air tube, a cover
with inextensible edges of greater circumference than the bottom of the troughs
and of less circumference than the top of either side of the troughs and filling pieces.
between the edges of the cover and the bottom of the troughs substantially as
described.
2. Wheels for velocipedes and other vehicles substantially as described and.
shewn in the drawing.
Dated this 27th day of Antil 1994
ELLIOTT BURRIS.