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

page_text: Improvements in the Shape and Construction of Rims or Tyres
of Wheels for Bicycles, Tricycles, and other Vehicles.
I JAMES HUDSON of Tennant Street Birmingham in the County of Warwick,
Manufacturer do hereby declare the nature of the said invention for "IMPROVE-
MENTS IN THE SHAPE AND CONSTRUCTION OF RIMS OR TYRES OF WHEELS FOR
BICYCLES TRICYCLES AND OTHER VEHICLES to be as follows:-
"
Hitherto hollow rims have been generally constructed of plain sheet steel and
made to the shape that they are required by being drawn through suitable dies.-
In my improved rim I so form the dies or rolls through which the steel is to pass
that the rim is formed with longitudinal corrugations which it is found add greatly
to its strength, and at the same time much lighter steel may with safety be
employed. It will be understood that the joint, which by preference is soldered
may be formed on any desired part of the rim, but I usually form it in the groove
of the rim so that it is covered by the indiarubber tyre.-Instead, of drawing my
improved corrugated rims from sheet steel as herein before described, in some cases
I use steel or iron tubes.

page_text: •
Improvements in the Shape and Construction of Rims or Tyres
of Wheels for Bicycles, Tricycles, and other Vehicles.
I JAMES HUDSON of Tennant Street Birmingham in the County of Warwick
do hereby declare the nature of my invention for IMPROVEMENTS IN THE SHAPE
AND 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 hollow rims have been generally constructed of plain sheet steel, and
Inade to the shape that they are required by being drawn through suitable dies.-
In my improved rim I so form the dies or rolls through which the steel is to pass
that the rim is formed with longitudinal corrugations, which it is found add greatly
to its strength, and at the same time much lighter steel may with safety be
employed.
It will be understood that the joint, which by preference is soldered, may be
formed on any desired part of the rim, but I usually form it in the groove of the
rim so that it is covered by the India-rubber tyre. Instead of drawing my
improved corrugated rim from sheet steel as hereinbefore described, in some cases
I use steel or iron tubes.-I will now describe with reference to the accompanying
drawings the manner in which my invention is to be performed.
Similar letters of reference denote similar parts in each figure.'
.
Fig. 1 is a transverse section through the rim of a wheel such as are used for
bicycles tricycles or other light vehicles the rim being made according to my
invention. Fig. 2 is a transverse section through the rim of a wheel such as are
previously described the rim being made according to my invention; in this fig.
the india rubber tyre is shown in its place and also the end of one of the spokes
of the wheel attached to the rim.-Fig. 3 is a part elevation of the same parts as
are shown in fig. 2 in transverse section.-Fig. 4 is the transverse section of a strip
of steel such as is used for making the corrugated tube from which the rim is
made. Fig. 5 is the transverse section of a steel or iron tube of ordinary circular
section which I may employ from which to make the corrugated tube for my
improved rim.
In figs. 1 2 and 3 A is the part of the corrugated tube which is approximately
semicircular in shape to receive the india rubber tyre B B1 B2 are the corrugations
which run longitudinally along the tube as clearly shown in fig. 3.
When the tube is made with a soldered longitudinal joint which is the method
that I prefer, then G fig. 4 shows the cross section of the strip from which the tube
is made.
The soldered joint may be placed at any desired position in the cross section of
the rim but I prefer to place it between D and C (fig. 1) where it will be covered
by the india rubber tyre The manner of attachment of the spokes is shown in
fig. 2; a hole is formed in the central corrugation B¹ through which the spoke F
is passed, a washer J is placed over the end of the spoke; this washer being put
in through the hole K in the rim The washer J rests on the shoulders of the

page_text: corrugations B and B and the rivetted end of the spoke F rests upon the washer
In fig. 5 H shows the section of a steel or iron tube which may be solid drawn or
welded, and from which I form a corrugated tube as shown by fig. 1.
The corrugations are formed by passing the tube through dies or rollers in a
very well known manner The number of corrugations that I prefer is three, that
is to say, one in the centre, and one on each side as shown in fig. 1, but I may use
a greater or a less number if I find it desirable.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
First. The formation of a tube of sheet steel or iron with longitudinal corru-
gations by drawing or rolling or by a drawing and rolling process combined having
a soldered joint, which tube is to be used for making the rim of a wheel for a
bicycle tricycle or other light vehicle.
Second. The formation of a tube with longitudinal corrugations by drawing or
rolling or by a drawing and rolling process combined from a tube of plain circular
section the corrugated tube being used for making the rim of a wheel for a bicycle
tricycle or other light vehicle.
Third. The construction of a rim of a wheel from a tube of corrugated section as
herein before described.
COOK TOT TO
ПАП спа полю
JAMES HUDSON.
Witness,
T. EMERY DAVIES,
Solicitor,
Birmingham.