I build my front fork of four tubes, which I join at the top, where they carry a pivot spindle.
About midway there is a crown plate, which carries the bearing for the pivot bolt, and keeps them apart, so that from there to the top the fork consists of four perfect triangles. On each side two tubes are joined at the lower end, thus forming a fork for the front wheel, each side consisting of a perfect triangle. Made in this way, the front fork is so strong that, although weighing only rather more than half a pound, it will carry a rider of sixteen stone over a rough road.
To transmit the steering power to the front wheel the handle bar drops to allow room for the knees, thus enabling the bar to be built into the strongest part of the forks connecting all four tubes.
The pivot spindle at the top of the fork is fitted into bearing at the top part of the frame from which the saddle is suspended. At this point the centre lines of all the eight tubes meet.
To hold the front fork at the right distance below, a tube is built out from each end of the bottom bracket, the tubes running towards the middle of the front fork, where they are joined, and carry a seat for a pivot bolt, by which it is pivoted to the crown plate in the front fork.
The bottom bracket barrel, which has to stand the heaviest strain of all parts of the frame, is, as I have shown, held by four tubes at each end; and this accounts for the immense strength of the frame.
Mikael Pedersen's account of how he came to create his unusual cycle. It is taken from an early, undated catalogue, perhaps the first issued. [From The Ingenious Mr. Pedersen, Appendix Two, by David E. Evans].