For a very long time I've searched in the internet what was the actual integrating device which Leibniz designed in 1693. Yesterday I found the answer - the instrument which Leibniz devised is the earliest example of an "integraph" - a mechanical quadrature device for plotting the integral value of a continuous function. But I didn't succeed in understanding the way it works. I'm the editor which yesterday added the information in Wikipedia about Leibniz's integraph, so I don't need the wiki references. Also I don't need the wiki article "integraph", since I tried to read it and I didn't understand that article.
So my question asks for a detailed explanation of the mechanism of Leinbiz's integraph. I'll also be glad to find out what was the influence of Leibniz's device in the 18th century, but that is not the main question.