A similar fallacy was responsible for the cogged wheels on the first railways.
One set will be cogged, and will be used when the locomotives are engaged in towing.
Some spits were mechanized with a cogged wheel and a weight at the end of a string.
One schoolboy will sometimes copy from another:—'You cogged that sum.'
The wheel will be revolved by a motor geared to the cogged part of the rim.
It existed also among the Romans, as proved by the 'cogged' or loaded dice dug up at Herculaneum.
A cogged joint is stronger than a notched because the upper beam is not weakened at its point of support.
The most appropriate lot was drawn by the gambler Clodius, who reddened with anger on being presented to a set of cogged dice.
The "cogged joint," used for connecting purlins to rafter and joists to girders, is illustrated in Fig. 353.
A lovely fiend, holding raw boys enchained, that your associates might rifle their purses with marked cards and cogged dice.
c.1300, "cog wheel;" late 14c., "tooth on a wheel," probably a borrowing from a Scandinavian language (cf. Norwegian kugg "cog") and cognate with Middle High German kugel "ball."