pitch chain

American  

noun

Machinery.

1. power chain.

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Etymology

Origin of pitch chain

First recorded in 1835–45

Example Sentences

Sometimes, especially in the case of overhead travelling cranes for very heavy loads, the chain is a special pitch chain, formed of flat links pinned together, and the barrel is reduced to a wheel provided with teeth, or “sprockets,” which engage in the links.

From Project Gutenberg

Every second link of the 12 in. pitch chain carries a push or scraper-plate, as shown in illustration.

From Project Gutenberg

A superior plan is now adopted, in which the messenger, consisting of a pitch chain which has a double and single link alternately, works in iron spurs fastened above the lower rim of the capstan.

From Project Gutenberg

The latter is turned to coil on the band by a pitch chain from the builder screw, the motion being given through a friction clutch, to allow for slip as the bobbin or coil gets larger, for obviously the bobbin as it gets larger is not required to turn so fast to coil up the band produced as when it is smaller.

From Project Gutenberg