Origin of worm wheel
First recorded in 1670–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for worm wheel
The worm-wheel which meshes into this screw is solid with the dial, as shown at C.Measuring Tools
The cutter worm acting as a screw causes the worm-wheel to rotate upon its axis, and therefore to feed to the cutter.
In addition to this two stationary supports may be placed beneath the worm-wheel (one on each side of the cutter).
It may here be shown that a worm-wheel may be made to work correctly with a square thread.
The live spindle is driven by a worm-wheel, provided around the circumference of the face plate.