Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . ne wheel to another by means ofteeth upon their peripheries, is called gearing. The axes of a pair of wheels in gear may have dif-ferent relative positions, and the teeth may act upon each other in different ways. There are in con-sequence six varieties or classes of gearing, viz.: 1, spur-gearing; 2, bevel-gearing; 3, skew-gear-ing ; 4, screw-gearing ; 5, twisted gearing ; 6, face-gearing. In general, if the teeth of wheels in gear be indefinitely increased in number and reduced in si
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . ne wheel to another by means ofteeth upon their peripheries, is called gearing. The axes of a pair of wheels in gear may have dif-ferent relative positions, and the teeth may act upon each other in different ways. There are in con-sequence six varieties or classes of gearing, viz.: 1, spur-gearing; 2, bevel-gearing; 3, skew-gear-ing ; 4, screw-gearing ; 5, twisted gearing ; 6, face-gearing. In general, if the teeth of wheels in gear be indefinitely increased in number and reduced in size,they will ultimately become mere lines, or elements of surfaces in contact. These are called the pitch-surfaces ; their relative motions are the same as those of the wheels from which they are thus de-rived, and their forms and disposition depend upon the class of gearing to which those wheels origi-nally belonged. In spur, bevel, and skew gearing, the surfaces of the teeth are composed of rightlines ; two engaging teeth of a pair of either kind of wheels touch each other along a right line, and 10
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
