Year: 1897

page_text: Date of Application, 6th Feb., 1897-Accepted, 20th Mar., 1897
1.
I, CARL WEGENER, of 14 Gitschinerstrasse, Berlin, Germany, Engineer, do
hereby declare the nature of my invention and in what manner the samo is.
performed to be particularly described and ascertained in and by the following
statement:
The present invention consists of a process for fusing together the parts of a
bicycle frame at their points of jnncture and thus producing frames of one whole
homogeneous piece of metal.
In the accompanying drawings forming part of the present specification, several
points of juncture of the frame of a bicycle are shown, the parts being placed in
the moulds ready for fusing.
Fig. 1 is a longitudinal section through the sleeve supporting the fork, showing
the juncture of the frame arms with the same,
Fig. 2 is a similar section through the part of the frame supporting the saddle,
Fig. 3 is a horizontal section through the parts of the frame adjoining the∙
saddle support,
Fig. 4 is a cross section through the centre of the bearing for the cranks,
Fig. 5 is a central section through the crank bearing and the stays for the rear.
wheel and
Fig. 6 a vertical longitudinal section through one of the rear wheel bearings.
Similar letters of reference denote similar parts throughout the several views.
Referring to Figure 1, the mould a is provided with the impression b and the
core band the frame arms c care projected into the mould through suitable
openings so that they rest against the core as shown. The arms cc' are
thickened at the ends which rest against the core and are provided with short coros
at these points. The inlet d for the molten metal extends down to the lowest point
of the mould so that the latter will be filled from the bottom upwardly and the
metal may flow out of the mould again at d'.
The process is carried out in the following mannor :-
The parts being placed in the mould as described, molten metal is poured into the
Bame at d and filling the mould, continues to be poured in, and flows out at d. The
molten metal is continually poured into the mould until the metal of the tube ends c c¹
has melted and fused to the sleeve of the mould b, the whole forming one homogeneous
piece of metal. The mould is then opened and the casting removed, the cores taken.
out and if desired the whole joint may be rendered harder and more dense by
placing a metal core in the tube ends and baminering the latter or rolling them by
means of suitable rolls.
The moment at which the metal of the tubes begins to melt and fuse may be
detected by arranging a suitable hole at the fusing points of the joint, through which
the molten metal of the tube ends will escape as soon as the fusion begius to take
place.
Having now particularly described and ascertained the nature of my inven-.
tion and in what manner the same is performed 1 declare that what I claim is :-
A BENCORE CAR making biovalo frames consisting in placing the hallow ends of the

page_text: parts of the frame, which said ends are of increased thickness, into a mould and
continually pouring molten metal into the latter until the said frame ends bave
melted and then allowing the whole to harden, substantially as described.
Dated this 10th day of December 1896.
BOULT & WADE,
Agents for the Applicant.