Johann Bessler's so-called Cross-Bars

Each of these code-sharing posts will be simultaneously posted on the www.besslerwheel.com forum as well as here on my blog, so that I have my own record of the posts in this subject.

Each post will contain information I have found in Bessler's books which will hopefully help towards designing the actual mechanisms, and should convince those who believe that Bessler left no information about the actual mechanisms within his wheels, that in fact everything we need can be found if you know where and how to look.

Much has been written about Johann Bessler’s puzzling comment about his use of  cross-bars and I think it’s time I shared what I believe to be the truth about them.

In his Apologia Poetica, on page 71 of part two, he wrote, “If I arrange to have just one cross-bar in the machine, it revolves very slowly, just as if it can hardly turn itself, but on the contrary, when I arrange several cross-bars, pulleys and weights, the machine can revolve much faster, and throw Wagner’s calculations clean out of the window!”

That’s how it appeared in the English translation at the back of my publication of Bessler’s Apologia Poetica.  But a couple of years ago I decided to go back to basics and looked up the word creuze which appears twice in the above quote in the original German.  The word creuze was translated as cross-bar because it was one of dozens of alternative meanings in a huge German/English dictionary I owned, and seemed to be the best fit with Bessler’s description of his mechanism.

But I could not understand how it might be possible to design the wheel with just one cross-bar and it was then that I resolved to check out the whole translation myself.  The word creuze has one obvious equivalent in English and is the basic meaning in German, and it is cross.  There is one obvious place in Bessler’s entire output of mechanical drawings which can be described as a cross and it is in the scissor mechanisms.

The scissor mechanisms is an essential ingredient in the design of the wheel, according to Bessler.  It is obvious when you look at the picture below that the red parts are indeed crosses and in my opinion Bessler is suggesting that one linkage, or cross was scarcely sufficient to turn the wheel but more of them made the wheel turn faster.

The inclusion of the words weights and pulleys along with crosses, suggests that the three items are connected in some way, one of them being the scissor mechanisms.  This solves the puzzle of having “just one cross-bar”, because you could have several crosses on each mechanism.

In a subsequent post I'll show that there were only two X's required, although you can see 8 in the above picture which is from the Toys page in MT, if you include the two handles.  This suggests that more will be better?

You can see from the above single scissor mechanism that one X would provide the minimum  extension.  Two would give more extension.

JC