An Improved Manufacture of Wheel-rims.
Year: 1894

page_text: Date of Application, 15th Oct., 1894
Complete Specification Left, 1st July, 1895-Accepted, 3rd Aug.. 1895
PROVISIONAL SPECIFICATION.
An Improved Manufacture of Wheel-rims.
I, ROBERT FREDERICK HALL, of Ferndale, Church Road, Moseley, near
Birmingham, in the County of Warwick, Managing Director of the Cycle
Components Manufacturing Co. Limited, do hereby declare the nature of this
invention to be as follows:-
My invention relates to an improved manufacture of wheel-rims.
Heretofore in constructing metal rims for wheels it has been usual first, to bend
or roll a strip of metal to the section required for the wheel-rim and then join the
ends of a suitable length of such strip to make a circle and complete the rim. This
method of construction is open to several objections, the chief of which is the
difficulty of making a good joint between the ends of the strip when the latter has
been bent or rolled to a more or less complicated section.
According to my invention I avoid the difficulty by making the joint while
the strip of metal is still flat and before the required section has been given to
the same.
In carrying my invention into practice I proceed somewhat as follows that is to
say, I take a plain strip of metal and join the ends by welding or brazing so as to
form the strip into a circle, I then bend the strip by any suitable means, by
passing through a series of rolls for example, to the section desired for the
wheel-rim.
Before bending the circular strip to the desired section I prefer to reduce the
thickness of the joint to that of the remaining portion of the strip, when such joint
is made by lapping the ends of the strip or has otherwise been thickened.
I may
do this by filing or otherwise removing the superfluous metal or in the manner
following that is to say, I bend the strip on each side of the joint in such a manner
that the two thin portions of the strip adjacent thereto are in the same plane. I
then remove all the metal part of the joint which projects above the plane of the
adjacent parts of the strip. This is conveniently done in a milling machine. I
may so arrange that the strip is bent as aforesaid as it passes under the milling
cutter by means of rollers or other pressers. The underneath part of the strip is
treated in a similar manner so that the joint is made of even thickness with the
remaining portions of the rim.
I sometimes rivet the joint before reducing the thickness of the same as above
described.

page_text: Ад шprovcu папиласто
I, ROBERT FREDERICK HALL, Managing Director of the Cycle Components:
Manufacturing Company Limited, of "Ferndale," Church Road, Moseley, in the
City of Birmingham, 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 relates to the production of endless metallic bands, rings or hoops
rom which cycle wheel rims are produced by rolling or shaping.
Heretofore metallic jointed rims for cycle wheels have been made from lengths
of metal shaped to the desired section prior to the ends being brought together and
brazed or otherwise united.
Now as the cross sections of such strips (when rolled) are usually complex when
they are so brought together at their ends and brazed or otherwise united, there is
a considerable difficulty experienced in removing the superfluous brazing material
at the joint part and this has to be done by a dressing process.
My invention.consists in brazing, welding or otherwise uniting together the ends
of a strip in the flat, and removing the superfluous brazing material or superfluous
metal at the joint prior to giving the ring or endless band thus formed the
necessary cross section.
By my new or improved process of finishing the joint when the metal to form
the rim is in the form of a flat endless ring is a considerable advantage and the
cost of manufacture is materially reduced, as such dressing or flush-clearing of the
joint can readily be done by a milling tool or straight cutter.
Figure 1 of the accompanying drawings represents a flat endless ring, band or
hoop, with a brazed joint finished or dressed prior to the rolling the ring into any
cross section.
Figure 2 represents a side elevation of the same and Figure 3 is a cross section
thereof.
Fi
Figure 4 represents the flat strip of metal from which the said ring is made.
Figure 5 shows the flat endless ring before the ends are brazed together.
Figure 6 represents an edge view of the same brazed and with the superfluous
brazing metal standing above the plane of the inside and outside faces of the strip.
Figure 7 represents an elevation of Figure 6.
In carrying out the manufacture or production of a flat-sectioned endless band
from which a cycle wheel rim is to be subsequently made, I take a flat strip of
metal Figure 4, and bend the same into a hoop, with the inclined ends brought
together forming a joint a, as in Figure 5. These said ends are then brazed
together as in Figures 6 and 7, which brazed joint is marked b. The superfluous
metal stands above the inside and outside surface of the flat band and is removed
by a milling or other dressing tool, forming an inside and outside plane-flush
joint c, as in Figures 1 and 2, and represented by the dotted lines in Figure 2.
Instead of the joint being formed by brazing, it may be lap, scarf or butt welded
or it may be electrically welded, as in Figures 8 and 9, in which the joint is
marked d. The superfluous metal standing above the inside and outside plane
surfaces is removed by milling or other dressing tools.
Or as a modification, the connection of the ends of the strip may be performed
by rivetting, countersinks being made for the reception of the rivet heads. The
joint is then made flush with the inside and outside surfaces of the band by milling
or other tools.
A flat ring made by one of the methods already described, and of which the
cross section is represented in Figure 10, is taken and then subjected to the shaping
action of a pair of rolls and shaped to a cross section such as e, represented in

page_text: Figure 11. This partly fashioned ring is then subjected to another pair of rolls
and a section such as f, Figure 12 may be given thereto. The ring may again be
rolled by another pair of rolls and the section 9, Figure 13, given thereto, and
finally the said fashioned rim may be acted upon by another pair of rolls and the
finished section h, Figure 14 given thereto.
Instead of rolling the flat sectioned rims into the desired section, they may be
shaped by spinning or otherwise.
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. Making metallic cycle wheel rims from lengths or strips of plain or
flat-sectioned metal, with the ends united prior to the cross shaping of the bands
thus formed, substantially as described and set forth.
Secondly. Making jointed metallic cycle wheel rims from lengths or strips of
plain or flat sectioned metal, with the ends united and the joints dressed prior to
the cross shaping of the bands thus formed, substantially as described and set
forth.
Dated this 29th day of June 1895
ROBERT FREDERICK HALL,
By Henry Skerrett,
24 Temple Row, Birmingham, Agent for Applicant.