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Bitmap Image  |  1994-04-22  |  36.0 KB  |  275x416  |  8-bit (50 colors)
   ocr: FIRST WORM GEAR WORM GEAR TURBINE GEAR SHAFT WHEEL On the same shaft as the turbine is a worm gear which drives a gear wheel on another shaft. The worm gear reduces the speed of rotation of the shaft and changes its direction.