wormwheel

Have you ever taken apart a Gillette speed stick deodorant and observed how much actual product is in there and how much of the opaque container is taken up by the wormwheel?

[false advertising] aren’t there laws about this 2009

One of these centers, when the machine is in motion, receives a continuous rotary motion about its axis from a wormwheel, D.

Scientific American Supplement, No. 441, June 14, 1884. Various

This is driven by a worm, C, carried on a shaft at the back of the chuck, and driven itself by a wormwheel, B, which gears with a screw which rides loosely upon the mandrel, and is kept from rotating by a finger on the headstock.

Scientific American Supplement, No. 441, June 14, 1884. Various

The gearing throughout is of friction pulleys and worm and wormwheel.

Scientific American Supplement, No. 795, March 28, 1891 Various