Engineering reminiscences contributed to "Power" and "American machinist" (1908)
Porter, Charles T. (Charles Talbot), 1826-1910 · New York, J. Wiley · leaf 87
driven up contact was madeover nearly one half the surface and the periphery ran dead true.I remember seeing this feature much admired in London, and sev-eral times heard the remark, I should think the key would throwit some. To prevent fanning I made the fly-wheel and pulley with armsof oval… … Flanges on the Strap. As already stated, the Allen valve-gear required the positionof the eccentric to coincide with that of the crank, so that theseshould pass their dead points simultaneously. To insure this andto make it impossible for the engineer to advance his eccentric,which he would be…
