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A treatise on gear wheels (1904)
Grant, George B. (George Barnard), 1849-1917 · Boston, Grant gear works, incorporated · leaf 84
Elliptic train Fig, 137» … Fig. 138, 82 JBUiptic Gear Cutting Machine. i 8 §^ \ J. 4 Ai 3 2 1 Elliptic Quick Iteturn Chart \ \ V s \ \ s \ \ S \ \ \ \ \ v Wv v^. \ v-^ V N, > v^ \# s ^^ \JO N <^.- \^ \-^ ^ r^ \ \ ;?- \ \ vj X.^ \, \ V ■^^ \ \ — -— ^>^ N, \ ■—— . s |gO£ f7 n ^^ \ \ ^ar ^■^^ \, V ■ ^ .^^s \ First gear…Gearing
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