double block

noun

, Machinery.

1. a block having two sheaves or pulleys.

Example Sentences

The captain of the Dazzler buckled on his pistol-belt, and placed a rifle and a stout double-block tackle in the boat.

From Project Gutenberg

At each boom a seaman stood, and each held the double block of a boom-tackle, waiting the word that now came.

From Project Gutenberg

The main-boom had a ring working between cheeks and carrying a double block with a single block below.

From Project Gutenberg

There were four, for it was a heavy boat, held by a double block.

From Project Gutenberg

The halyards should be a luff purchase, the fly-block being the double block, and the single block being hooked in the channels.

From Project Gutenberg