Improvements in the Rims or Felloes of Vehicle Wheels.
Year: 1895

page_text: Date of Application, 15th Aug., 1895
Complete Specification Left, 18th Dec., 1895-Accepted, 15th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in the Rims or Felloes of Vehicle Wheels.
I, EUGEN JULIUS POST, Manufacturer, of Flandrische Strasse, Cologne, in
the German Empire, do hereby declare the nature of this invention to be as.
follows:-
:―
This invention relates to hollow metallic rims for the wheels of bicycles and
other light vehicles.
In the accompanying drawings:
Fig. 1 is a radial section of a rim and tyre embodying my invention,
Fig. 2 is partly a longitudinal section and partly a side elevation of the same.
Figs. 3 and 4 show a modification.
Figs. 5 and 6 indicate further modifications.
The rim is formed of two pieces of sheet metal bent and secured together so as
to form a hollow space.
b
These are the inner rim a, and the outer rim 6 swaged together at their edges c,.
in such a manner, that the tension of the spokes serves to draw the edges of the
two parts more firmly together.
This is effected by bending the edge of the inner rim a round that of the outer
rim b. To increase the rigidity of the rim and to prevent the heads or nipples of
the spokes from being drawn through the inner rim, the latter may be thickened in.
the centre, as shown by Figs. 5 and 6.
Dated this 12th day of August 1895.
Improvements in the Rims or Felloes of vehicle wheels.
I, EUGEN JULIUS POST, Manufacturer, of Flandrische Strasse, Cologne, in
the German Empire, 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 hollow metallic rims for the wheels of bicycles and
other light vehicles.
In the accompanying drawings:
Fig. 1 is a radial section of a rim and tyre embodying my invention;
Fig. 2 is partly a longitudinal section and partly a side elevation of the same;
Figs. 3 and 4 show a modification;
Figs. 9 and 10 indicate further modifications;
Figs. 5 to 8 are sections of the rim without the tyre.
The rim is formed of two bent pieces of sheet metal, secured together by means
of folded edges so as to form a hollow space. This hollow rim is composed of two
bent pieces of sheet metal, viz. an inner rim a, and an outer rim b, swaged or folded
together at their edges c, in such a manner that the tension of the spokes serves to
draw the edges of the two parts more firmly together.

page_text: This is effected by bending on each side the edge of the inner rim a round that
of the outer rim b. To increase the rigidity of the rim and to prevent the heads or
nipples of the spokes from being drawn through the inner rim, the latter may be
thickened in the centre as shown by Figs. 5 and 6.
If the edges of the inner rim are simply bent over those of the outer rim, without
the insertion of any core, it may occur, that the edges of the hollow tyre are not
sufficiently rigid to prevent the formation of notches or kinks while the indiarubber
tyre is being mounted; and as such deformations or kinks in the edge of the rim
would be injurious to the tyre, I increase the rigidity of the edges and of the whole
rim by providing the edges with cores c¹ of aluminium wire or other suitable metal,
as shown by Figs. 7 to 10; these wires may be drawn into the folds, or the edges
of the rim may be bent around the wires.
In the examples represented by Figs. 7 and 8, the inner rim is thickened along
the centre line.
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. A hollow metallic rim for the wheels of cycles and other light vehicles,
composed of an inner rim a and an outer rim 6 connected along the edges by
folding or swaging, the right and left edges of the inner rim being bent over the
corresponding edges of the outer rim in the manner substantially as described with
reference to the drawings.
2. A hollow metallic rim for the wheels of cycles and other light vehicles,
composed of an inner rim, an outer rim and a wire core, connected and secured
together in the manner substantially as described and shown.
Dated this 11th day of December 1895.
FAIRFAX & WETTER,
433, Strand, London, Agents.