Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 856
\ I i I I tf radius of base BA = sin 0. … radius of pitch circle B c In a rack of this kind, the locus of contact ofthe teeth being the tangent line AH, thesloping teeth will be pressed downwards by acertain portion of the working pressure, whichin some cases may be an advantage in itselfby neutralizing vibration, and the advantageof a…
Mechanical engineering
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