|Bail - Ironrod partially circling the boom to which sheet block
is attached 2.To remove water from a boat, as with a bucket or a
Block - A pulley used to gain mechanical advantage, They
may have a wood or metal case with one or more sheaves.
- Shell outside of the Block
- Sheave what the ropes on
- Eye Where the block can be attached.
Tackle -Combination of blocks use with lines to make a purchase
used to move heavy objects.