Improvements in the Construction of Rims or Tyres of Wheels for Bicycles, Tricycles, and other Vehicles.
Year: 1885

page_text: Improvements in the Construction of Rims or Tyres of Wheels
for Bicycles, Tricycles, and other Vehicles.
I JAMES HUDSON of N° 146 Tennant Street Birmingham in the County of
Warwick Manufacturer do hereby declare the nature of my said invention for
IMPROVEMENTS IN THE CONSTRUCTION OF RIMS OR TYRES OF WHEELS FOR
BICYCLES TRICYCLES AND OTHER VEHICLES to be as follows:-
Hitherto the rims of wheels similar to those described in the title have been
either drawn from weldless tubes or from sheet steel and soldered on the outside of
the tube but either of these two methods is objectionable, the first on the ground
of expense and the second on the ground of the disfigurement of the outer surface
of the tube by the solder upon the joint.
In
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improved rim I roll or otherwise form the strip of metal of which it is
d to any desired strength but thickened in its centre this is for the
giving the desired strength to the under side of the rim through which
he spokes are drilled.
aw the rim in the usual manner and by preference the joint is in the
the rim. It will be understood that by this means I can produce a rim
with a clean surface and the joint being protected under the rubber it is not liable
to perish.

page_text: Improvements in the Construction of Rims or Tyres of Wheels
for Bicycles, Tricycles, and other Vehicles.
I JAMES HUDSON of N° 146 Tennant Street Birmingham in the County of
Warwick, Manufacturer do hereby declare the nature of my said invention for
IMPROVEMENTS IN THE CONSTRUCTION OF RIMS OR TYRES OF WHEELS FOR
BICYCLES TRICYCLES AND OTHER VEHICLES and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
Hitherto the rims of wheels similar to those described in the title have been
either drawn from weldless tube or from sheet steel having an overlapping joint
and soldered on the outside of the tube; but either of these two methods is
objectionable; the first on the grount of expense and the second on the ground of
the disfigurement of the outer surface of the tube by the solder upon the joint.
In the tubing. for my improved, rim I roll, or otherwise form, the strip of metal
of which it is constructed, to any desired, strength, but thickened in its centre, this
is for the purpose of giving the desired strength to the underside of the rim through
which holes to receive the spokes are drilled.-I then draw the tube of which the
rim is afterwards formed in the usual manner and by preference the joint is in the
hollow of the rim. It will be understood that by this means I can produce a rim
with a clean surface and the joint being protected under the india rubber tyre it is
not liable to perish. In some cases I employ. rolls to form the said tubes in the
place of drawing them through dies. Instead of drawing the tubes, of which my
improved rim is formed from. sheet steel I in some cases use steel or iron tubes
having a thickening upon its under side. When sheet steel is used to form the
tube of which my improved tyre is to be constructed I form the joint thereof, as a
butt or jump joint, that is, bringing the two edges of the metal against but not
overlapping each other..
I will now. describe, with reference to the accompanying drawing the manner in
which my invention is to be performed.-Similar letters of reference denote, similar,
parts in each figure in which they occur. Fig. 1 is a section through a tube con-
structed according to my invention. Fig. 2 is a section through a wheel tyre
made of tube constructed according to my invention showing also the india rubber
tyre and the attachment of a spoke. Fig. 3 is a partial side elevation of a wheel
tyre as above. Fig. 4 is a cross section of a strip of metal rolled to a suitable
section for making a tube according to my invention. Fig. 5 is a cross section of
a circular tube of suitable section for making a tube according to my invention.
A tube made according to my invention is semicircular and concave on the upper
side and nearly semi-elliptical and convex on the underside as shown in fig. 1
where A is the metal of ordinary thickness B the thickened part at the bottom
for receiving the spokes, C the joint, and D the brazing which is placed so as to be
hidden by the india rubber tyre E fig. 2.
In fig.
A is the ordinary thickness of the metal, B the thickened part, E the
india rubber tyre, and F the spoke.
.
The sama monta and enforanas Intdown

page_text: In fig. 4A A show the metal strip where of the ordinary thickness, and B shows
the thickened part which I place by preference in the middle. In fig. 5 which
shows a round tube which is afterwards drawn through dies to bring it to the
requisite shape G shows the metal of ordinary thickness and H the thicker part.—
When the tube is drawn to the required section the part H becomes B (figs. 1.
2 and 3).
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, and without limiting
myself to the precise details hereinbefore described as these may be modified
without departing from the nature of my said invention, I declare that what
I claim is
First. The improvements in the metallic rims or tyres of wheels for Bicycles
Tricycles and other Vehicles herein before described and illustrated in figa. 1 to 4
both inclusive of the accompanying drawings, that is to say, making froin a strip
of sheet steel of any desired strength but thickened in its centre by drawing or
rolling or by the drawing and rolling process combined, tubing to be afterwards
made into the said rims, the said tubing being so fastened by solder or otherwise
that it has on one side a trough of semicircular figure in which the india-rubber
tyre fits, and on its under side a nearly semi-elliptical figure, or other desired shape,
and having a thickening or swelling on its said under side thus giving strength
and rigidity to the rim at the part where the metallic spokes are connected to or
take through the said tyre; substantially as described and illustrated in the
accompanying drawings.
Second. The modification hereinbefore described of constructing a tube by
drawing or rolling or by the drawing and rolling process combined, to be afterwards
made into the said rims, of solid drawn or other tubing having a thickening or
swelling on its under or lower side as shown; substantially as described and
illustrated in the accompanying drawings in fig. 5.
Third. The adoption of a butt or jump joint, that is bringing the two edges of the
metal against each other substantially as hereinbefore described and illustrated in
the accompanying drawings.
Dated this twenty eighth day of August 1885,
Witness,
J. EMERY DAVIES,
Solicitor,
Birmingham.
JAMES HUDSON.