disk crank

noun

, Machinery.

1. a crank having the form of a disk with a crankpin mounted off-center.

Word History and Origins

Origin of disk crank¹

First recorded in 1885–90

Example Sentences

In the center is a cast iron guide for working the ram, the guide being extended on two sides to receive the disk crank journals, 2 in. in diameter by 3½ in. long.

From Project Gutenberg

A disk crank is used with suitable counterbalance, expressly adapted to the weight and speed of sash; a hammered steel wrist pin five inches in diameter, and a forged pitman of the most approved pattern, with best composition boxes.

From Project Gutenberg