Improvements in Joints for the Tubes of Cycles.
Year: 1898

page_text: Date of Application, 11th June, 1898-Accepted, 12th Nov., 1898
COMPLETE SPECIFICATION.
Improvements in Joints for the Tubes of Cycles.
I, REINHARD FELSCHE, of 20, Abendstrasse, Madgeburg-Neustadt, Germany,
Engineer, 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 joints for the tubes of cycles which enables a sufficiently
secure fixing of the tube in its socket, or in metal cast round the same, to be
effected without the use of screwing, soldering, or other usual modes of attachment.
This joint or connection is produced by forcing molten metal through a hole or
holes in the wall of the socket into a space which is formed for that purpose
between the socket and the tube, such space being formed by means of cavities
provided in the wall of the tube and in the wall of the socket. There may be
used for this purpose any suitable metal or alloy, such as, for example an alloy
of antimony and tin.
The accompanying drawing shows a portion of a cycle frame illustrating by
way of example two tubes fixed in a socket piece by means of joints or connection's
in accordance with this invention. As shown the tube 1 is formed with a cavity
2 designed to be arranged opposite another cavity 3 of corresponding shape in the
wall of the corresponding socket 4. The other tube 1ª is also formed with a
cavity 2 which, when the tube is in position, is opposite a serrated or otherwise
notched or roughened portion 3ª of the wall of the corresponding socket 4".
Each tube is forced into its corresponding socket by means of special machinery
such as that described in the Specification of former Letters Patent granted to me
No. 12616 of 1897, so as to cause the walls of the tube and of the socket to press
tightly against one another, so that a withdrawal or pulling out of the tube from
the socket is rendered more difficult by the friction thereby produced.
The forcing of the molten metal into the space that is provided between the
tube and the socket is effected by means of a metal squirt or press as well under-
stood, and has for object to completely fill up the intermediate spaces with metal
and to render the forced-in metal more dense, so that the action or joint between
the tube and the socket is rendered firm and intimate.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is: :-
A tube joint for cycles according to which the tube is forced into a socket and
molten metal is forced under pressure into a space located between the tube and
the socket and constituted by cavities formed respectively in the walls of the tube
and of the socket, the arrangement being such as to render the pulling out of the

page_text: tube from the socket more difficult by reason of the friction produced between the
tube and the socket, and by the metal which has been rendered dense by the
forcing-in action, substantially as described.
Uuted this 11th day of June 1808
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.