Improvements in the Construction of Wheels for Motor Cars, Bicycles, or other Vehicles.
Year: 1896

page_text: Date of Application, 16th May, 1896
Complete Specification Left, 15th Feb., 1897-Accepted, 17th Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Wheels for Motor Cars,
Bicycles, or other Vehicles.
I, JAMES DAVIDSON of 11 Waring Street, Belfast, Ireland, Tea Planter, do
hereby declare the nature of this invention to be as follows:-
My invention has reference to wheels and more particularly to wheels for motor
cars, bicycles and other comparatively light vehicles and its object is to construct a
light, strong and inexpensive wheel.
According to my invention I employ two dish shaped circular discs of metal
(preferably aluminium) or other suitable material such as papier mâché, each disc
being stamped or formed with a rim or circumferential flange so that when the two
discs are placed together face to face with their concave faces inwards and are
secured together the two rims combined form a rim adapted to receive a pneumatic,
solid or other tyre. The two discs are bolted or otherwise secured at their centre
to a nave or hub carrying an axle or axle box. They are also holted or rivetted
together at a short distance from their outer edge, a ring of rubber, wood or other
material being preferably placed between them for the purpose of preventing
tremor.
A light, strong and inexpensive wheel is thus made. In order to further
strengthen the wheel and at the same time improve its appearance the discs may
be corrugated, fluted or otherwise embossed and in this way they may if desired be
made to look like spokes.
Instead of the rim for receiving the tyre being formed by circumferential flanges
on the discs as hereinbefore described the discs may be secured to a separately
constructed rim. In this case the discs may for the sake of lightness or appearance
have portions extending from or near the nave to the outer edge cut away, sufficient
of the outer edge and body being left to securely connect with the rim and to give
the requisite strength.
Dated this 16th day of May 1896
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents.
0 Improvements in
in the Construction of Wheels for Motor Cars,
Bicycles, or other Vehicles.
I, JAMES DAVIDSON of 11 Waring Street, Belfast, Ireland Tea Planter, 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
5 statement :-
My invention has reference to wheels and more particularly to wheels for motor

page_text: cars, bicycles and other comparatively light vehicles and its object is to construct a
light, strong and inexpensive wheel.
According to my invention I employ two dish shaped circular discs of metal
(preferably aluminium), papier mâché, or other suitable material, each disc being
stamped or formed with a rim or circumferential flange so that when the two discs
are placed together face to face with their concave faces inwards and are secured
together, the two rims combined form a rim adapted to receive a pneumatic, solid
or other tyre. The two discs are bolted or otherwise secured at their centre to a
nave or hub carrying an axle or axle box. They are also bolted or rivetted
together at a short distance from their outer edge, a ring of rubber, wood or other
material being preferably placed between them for the purpose of preventing
tremor.
A light, strong and inexpensive wheel is thus made. In order to further
strengthen the wheel and at the same time improve its appearance the discs may be
corrugated, fluted or otherwise embossed and in this way they may if desired be
made to look like spokes.
Instead of the rim for receiving the tyre being formed by circumferential flanges
on the discs as herein before described the discs may be secured to a separately
constructed rim. In this case the discs may for the sake of lightness or appearance
have portions extending from or near the nave to the outer edge cut away, sufficient
of the outer edge and body being left to securely connect with the rim and to give
the requisite strength.
Referring to the accompanying illustrative drawings:-
Figure 1 is a side elevation of a wheel constructed according to this invention,
part of one of the discs being broken away for the purpose of showing the
intermediate ring.
Figure 2 is a cross section on the line 2-2 of Figure 1.
Figure 3 shows a wheel in which the discs are embossed or 'corrugated so as to
give the appearance of spokes; and
Figure 4 shows a wheel in which the discs are formed with symmetrically
arranged radial openings.
Referring first to Figures 1 and 2, a a¹ are the two dish-shaped circular discs of
metal or other suitable material. Each disc a is stamped or otherwise formed with
a rim or circumferential flange b or b¹ the arrangement being such that when the
two discs are placed together face to face with their concave faces, inwards as
shown in Figure 2, the two rims or flanges b b' combined will form a rim adapted
to receive a pneumatic, solid or other tyre c; a solid tyre of circular section is
shown in the figure but the rim may be shaped to receive a tyre of flat or other
form. The two discs a a¹ are secured at their centres by means of bolts or rivets d
to a nave or hub e adapted to carry an axle or axle box.
In the figures, strengthening or bearing rings ff are shown fixed to the faces
of the nave e.
The two discs a a' are also secured together at a short distance
from their outer edges b b¹ by means of bolts or screws g, a ring h of rubber, wood
or other material being preferably placed between the discs at that place for the
purpose of preventing tremor.
Radial arms are advantageously employed for the purpose of centreing and
supporting the ring in place during the building of the wheel. In Figure 3, the
discs a are shown formed with embossed, fluted or corrugated portions a* which
give the wheel the appearance of being made with spokes, and also serve to
strengthen it.
In Figure 4, the discs a are shown formed with symmetrically arranged radial
openings i. These openings have for object to reduce the weight of the wheel and
also to impart to it a more elegant appearance.
In all the forms of wheels above described, the discs may be secured to a
separately constructed rim which may or may not be adapted to hold a tyre
such as c.

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. In a wheel two dish-shaped circular discs, formed with circumferential rims or
flanges, and placed together face to face with their concave faces inwards, and
secured at their centres to a nave or hub, and also secured together near their outer
edges, the said two disc rims or flanges combining to form a wheel rim adapted to
receive a pneumatic solid or other tyre, substantially as described and shown.
2. A wheel of the kind referred to in the preceding claim, having a
ring of
clastic or other material interposed between the discs at the place of connection
near their outer edges, with or without centreing or supporting arms, substantially
as described and shown.
3. Wheels of the kind referred to in Claims 1 and 2, in which the discs are
secured to a separately constructed wheel rim, substantially as described.
Dated this 15th day of February 1897.
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, London, Chartered Patent Agents.