Improvements in or connected with Bicycles.
Year: 1896

page_text: Improvements in or connected with Bicycles.
I, MIKAEL PEDERSEN of Kingsley House Dursley in the County of Gloucester
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 :-
Letters Patent No. 18371 of 1893 having been granted to Mikael Pedersen of
Kingsley House, Dursley in the County of Gloucester Engineer;-This Invention
relates to improvements in the above and comprizes various means of making the
joints of the Bicycle Frames and improvements in the saddle as hereinafter described
and shown in the drawings.
Fig. 1 with sections shows the bottom joint of the tubes forming the front forks
each tube is flattened diagonally leaving the rounding of the tube diminishing to its
point, the flattened edges are then split and one flat of the tube passed inside the
other, and the whole brazed or sweated together. Sometimes I insert a suitably
shaped piece of steel in the joint to act as a stiffener.
Fig. 2 and section shows the top joint of the 4 tubes forining the front forks. It
consists of a plate A fitted to the tubes as shown and brazed or sweated in place.
Over this is passed a conical cap B which carries at its top the pivot pin C on which
the front fork works. The lower part of this cap is formed with 4 flaps D which
overlap the 4 tubes and to which they are brazed or sweated.
Figs. 3 & 4 & section show the topjoint of the frame proper which consists of a steel
forging forming a bearing for the pivot at the top of the forks. This forging has
2 flat projections E which hold the double tubes running from the bottom bracket &
back wheel forks and to which they are brazed or sweated. These tube ends are
formed with bevelled flats on the inside as shown. The lower joints of the forks with
the main part of the frame I form in a similar manner.
Fig. 5 shows the joint of the tubes at the rear end of the back wheel forks. Each
tube end is flattened down diagonally from each side leaving the rounding of the
tube decreasing towards the middle. A junction plate F provided with 2
projections to enter such forined tube ends joins up the tubes at this point.
The saddle formed of cord or string is made or woven in such a way that the
longitudinal cords, which at the back are fastened to a suitably shaped wire or
bar G meet and are connected together in a suitable way at the front of the saddle H.
The form of the saddle is made by the interwoven cross strings, & the outer
longitudinal cords are left considerably looser to allow the saddle to accommodate
itself to the form of the rider.
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 joint of the tubes forming the bottom of the front forks substantially as
described and particularly shown in Drawing 1.
(2) The joint of the tubes forming the top of the front forks substantially as
described & particularly shown in Drawing 2.

page_text: (3) The top joints of the frame substantially as described & particularly shown in
Drawings 3 & 4.
(4) The joint of the tubes at the rear end of the back wheel forks substantially as
described and particularly shown in Drawing 5.
(5) The method of making the saddle with cross strings & loose longitudinal cords
substantially as described.