The illustration shows a filling cam only on the cam shaft, but when warp and filling wind are wanted, two CAMS are placed on this shaft.
"Illustrated Catalogue of Cotton Machinery"
Howard & Bullough American Machine Company, Ltd.
The shifting was accomplished by a pin-in-slot and spring arrangement to change the indexing of the CAMS to starting position and return.
"The First Airplane Diesel Engine: Packard Model DR-980 of 1928"
Robert B. Meyer
If these levers are at liberty to move up and down, and if one or more projecting pieces, called CAMS, are fixed on the axis opposite to the end of each lever, the action of the stream upon the wheels will keep up a perpetual succession of blows.
"On the Economy of Machinery and Manufactures"
Charles Babbage