Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 54
they appear to acttogether as a single gear with irregular teeth.They are known as Hookes Gears. It matters not how many different kinds ornumbers of teeth the several gears may have,or in what order they are arranged, if thosethat work together on opposite shafts arematched. They may be given an…
Gearing
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