Benjamin, Charles H[enry], 1856- [from old catalog] · New York, H. Holt and company · leaf 186
outside of the sprocketteeth so that the latter may be continuous across theface of the wheel, save for a single guiding groove inthe center. Projections on the under side of the links engagewith the teeth of the sprocket, E being the point ofcontact for the driver and / a similar point for… … 162 MACHINE DESIGN. relative motion is merely a rocking of one pin on theother without appreciable friction. The pins are of hardened tool steel with softenedends. The combination of this freedom from rubbingcontact with the adaptation of the engaging toothprofiles, gives a chain which can be…
Machine design
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