600 6 × 2 = 50 lb. Ans.
TACKLES.
Tackles are indispensable in the service of the artillery.
The fall is the rope of which the tackle is composed; that end of it which is fixed to the block is called the standing part, or end; the other, which is pulled, or hauled on by the men, is called the running part, or end; and the parts which pass from one block to the other are called the returns of the fall.
In all operations with tackles, the following directions should be attended to:—
1st. Make fastenings stronger than appears actually necessary.
2nd. Examine the straps, and hooks of the blocks carefully.
3rd. Consider whether the cordage is new, half-worn, or almost worn out.
4th. Attend to the seizings of the clinches, the sheet bends, the proper stoppering of the fall, the belaying the fall with two half hitches.
5th. Be very distrustful of selvages applied on smooth worn rope.