Labels:book | box | bulletin board | gazette | person | pole | poster | reckoner | trade name OCR: INDUSTRY RECIPROCATING-TO-I ROTARY MOTION DEVCI Leonardo desi igned many ingenious mechanisms that are essential com ponentsof his device converts modern- day machinery and an up -and down planned to write motion into circular book on the motion. When the handle ic subject His work moved down, the little bars came 400 years known as pawls slide past before the first the ratchets, or teeth, on the known systematic the pawls outside handle of catch ic the in the moved barrel. teeth up When and the 19th study elements of century in machine the INDUSTRY turn the barrel. This was device that could be incorporated into many "Mechanics are the Paradise of different machines. mathematical science beca iuse here we come to the fruitsof mathematics. 1996 SoftKey Multimedia Inc., subsidiary of SoftKe ...
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