A gun-tackle purchase applied to the ends of the truss-pendants, to bowse them taut home to the mast.
Within the sister-block it becomes a gun-tackle purchase, with the fall leading on deck.
The decks were washed down, the main hatch removed, and a gun-tackle purchase rigged before the boat arrived with breakfast.
A gun-tackle Purchase is a rope rove through two single blocks and made fast to the strap of the upper block.
The royal clewlines are single, and the topsail and topgallant are a gun-tackle purchase.
There he stood full of life and energy, now hauling on a gun-tackle, now looking along a gun.
Sometimes they are a gun-tackle purchase, with two large single blocks.