Anti-twister mechanism

This mechanism is intended as an alternative to the usual method of supplying electric power to a rotating device, the use of slip rings.

Whereas with large devices minor fluctuations in the power provided through the brush mechanism are inconsequential, in the case of tiny electronic components, the brushing introduces unacceptable levels of noise in the stream of power supplied.

A device designed and patented[1] in 1971 by Dale A. Adams and reported in The Amateur Scientist in December 1975,[2] solves this problem with a rotating disk above a base from which a cable extends up, over, and onto the top of the disk.

As the disk rotates the plane of this cable is rotated at exactly half the rate of the disk so the cable experiences no net twisting.

[4] Its covering Spin(3) group can be represented by unit quaternions, also known as versors.