The Wimshurst influence machine was a popular machine at the end of the 19th century to generate high voltages.
From it's development ~1883 it superseded other devices such as the "Holtz" and "Voss" machines. It was one of the first ways to generate high voltage to more or less conveniently take Röntgen pictures around the turn of the century. For example, this 1909 book on radiography: Radiography and the "X" rays in practice and theory with constructional and manipulatory details by S.R. Bottone has an interesting chapter on Wimshurst machines, how to hook them up to a Crookes tube and how to take X-ray pictures. My little Wimshurst machine should in theory be able to do the job, but it will take a very long time to get 10 good flashes. And the tiny crank is not ergonomic. And I don't have a Crookes tube.
The Wimshurst machine got superseded around 1924 by more practical generators like the Marx generator which is still used today in laser printers and CRT television (Although those are getting obsolete too).
And for extreme high voltages, it got replaced around 1929 by Van de Graaff generators which were used for example for the early particle accelerators
This instructable will show how I built a small Wimshurst influence machine with two CDs, pieces of scrap cardboard and some tin foil. These are instructions for materials and tools that I had lying around, just to provide ideas for other people. Of course it would be better not to use cardboard and to make the device much larger.
The instructable consists of the following steps:
Step 1) First, the workings of a Wimshurst machine will be explained.
Step 2) The materials and tools are shown.
Step 3) CDs are cleared.
Step 4) Metal strips will be made from aluminium foil AND aluminium tape and glued onto the CDs.
Step 5) Wheels are made and glued to the disks.
Step 6) The axles are mounted in a support structure.
Step 7) A socket is made that will hold the mechanism.
Step 8) A base is made on which the Leyden jars and the mechanism will be mounted.
Step 9) Two Leyden jars are made.
Step 10) The neutralizer rods are made.
Step 11) A crank is made.
Step 12) The sides of the socket are closed up.
Step 13) The base is adapted so that everything can be mounted without them shifting around.
Step 14) The electrodes are constructed from wire and aluminium foil.
Step 15) Debugging
Step 16)The results.
A very interesting website containing all sorts of builds of all sorts of electrostatic machines is the following:
If you have any interest in this subject, it is really worth checking out.
There is also an other instructable: http://www.instructables.com/id/Whimshurst-Generat...
The build process isn't really documented, but there is a list of materials. If you look at that, you can most likely find the equivalent in my machine with some documentation on its function and how it relates to other parts.