Improvements in and relating to Cork Tubes, applicable for Oyole Handles or Pedals and the like.
Year: 1896

page_text: Date of Application, 30th Dec., 1896-Accepted. 8th. May, 1897
COMPLETE SPECIFICATION.
Improvements in and relating to Cork Tubes, applicable for Oyole
Handles or Pedals and the like.
I, ANTON HAGEDORN, of 38 Lutter Strasse Osnabrück in the German Empire,
Manufacturer, 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 :-
The present invention relates to cork tubes with an inner or outer reinforcement
of other material for the construction of cyclo handles and the like. These cork
tubes are so constructed that there is a firm connection of the cork portion
thereof with itself as also with the envelope enclosing it, and the core
supporting it.
Cycle handles of cork are as is well known usually constructed either of
ground cork, of cork rings, or cut entirely out of solid cork, but in all these cases
the durability of the handles leaves much to be desired.
According to my invention the cork, either powdered or in pieces is connected
with an inner envelope of porous material such for instance as paper. The
envelope is saturated or covered with a suitable binding material such as glue,
varnish or the like, and pressed together with the surrounding cork in suitable
moulds, the whole is then heated whereupon the binding material of the envelope
is combined with the surrounding cork so that the latter after drying firmly
attached to the inner envelope. This inner envelope now becomes the real
support for the cork and is made through its combination with the same into
a rigid body which effects a very considerable increase of strength of the
whole handle without on the other hand losing materially the properties of
the-cork.
Various methods of carrying the above described invention. into effect are shown
in the accompanying drawing-
Figures 1 to 3 display a handle or wooden support formed of two parts c d
which are pushed into the paper envelope a from each side. Upon the latter
is placed the covering layer of powdered cork, or of natural cork; two
rings e el are moreover arranged at the junction points between the cork and the
support.
Figures 4 to 6 display a handle composed of separate rings b placed upon the
support a. Clips de close the handle at the ends, the envelope is in this case
arranged directly upon the cycle handle bar.
Figures 7 to 9 show a handle with the well known sections and holes g
arranged in the axial direction which admit of a constant access: of air during the
use and check the heating of the handle. The cork layers 6 are here also in the
form of longitudinal strips and are held in position by means of pegs placed
beneath them.
Figures 10 to 12 show a method of arranging the supports in the manufacture of
cork tubes in general.
Around the metal tube.d which serves as the core there is placed the envelope
of porous material, around this again the cork b and upon this an outer envelope a¹
whereupon the whole is surrounded by the outermost tubular piece c, the end
pieces e el are pressed on by means of a compressor and the whole is then heated.
This kind of tube is suitable on account of its insulating layer of cork for many

page_text: other purposes such for instance as tubes or cases for forwarding articles by post or
-otherwise.
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. The, herein described cork tubes with an inuer or outer reinforcement
characterised by having the layer of cork itself connected with an inner or outer
tube of porous material by means of a suitable binding medium and the aid of
warmth in such a manner as to form a firm body applicable for the handle bars or
pedals of cycles and the like..
2. In handle bars or pedals for cycles and the like the combination of-parts
substantially as hereinbefore described and illustrated in the accompanying
-drawings.
Dated this 30th day of Dec 1000
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester, and Birmingham,
Patent Agents for the Applicant.