I.C.S. reference library : a series of textbooks prepared for the students of the International Correspondence Schools and containing in permanent form the instruction papers examination questions, and keys used in their various courses (1904)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 253
FIO. flOl. Fio. a. 28 MACHINE ELEMENTS. §5 the teeth are usually parallel to the axis of the wheel or toits shaft. Gears are said to be in mesh when the teeth of two wheels,respectively, engage each other or interlock. 43. In Fig. 21 is shown a pair of bevel gears in mesh.Of the two wheels shown,… … Pig. 22. a pair of miter gears in mesh. It is obvious that the anglethat the teeth of these gears make with the axis of the shaftmust be 45°. 44. Of a pair of gear-wheels (either spur or bevel) havingdifferent diameters, the smaller is called a pinion. MACHINE ELEMENTS. 29 In Fig. 23 is shown a…
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