The equipment consists of the following stores: Two double blocks, two single blocks for gin-tackles; one double block, one treble block, and one snatch-block for the main-tackle fall; guys, head-lashing, heel-lashing, and straps for main tackle; snatch-block, holdfasts, and some spun-yarn for mousing, etc.; two cleats for heels to prevent lashing from slipping; stakes for holdfasts for guys and heel-posts; two shoes for heels. (See Fig. 44.)
A. For lifting heavy weights over the face of a wall or cliff, or in other situations where the gin could not be used for want of a footing for the pry-pole.
A. Middle the lashing and take a turn around both legs at the cross; pass one end up and the other down, around and over the cross, until half of the lash is expended; then ride both ends back again on their own parts and knot them in the middle; frap the first and riding turns together on each side with sennit. This will be useful in rigging shears for hoisting guns when a gin is not available. Any two spars that will support the weight can be used. (See Fig. 51.)
Lay the middle of the back guy in the cross; bring the left-hand end up around the right leg and over the head of the left leg; then carry the right-hand end around under both legs; let it cross over the left-hand end, and seize them together with spun-yarn.
A. Place two spars at right angles and pass several turns around two opposite angles of the X, then several turns around the other two opposite angles. Continue this until the spars are firmly lashed and will not move; tie the ends. This lashing is used to make two spars rigid and at right angles to each other.
A. Lay the heads of the spars on a trestle about three feet high, the right leg above the left, so that they cross at about twice their thickness from the ends, with the heels in their proper positions.
Make a bowline-knot in the end of the fore guy and slip it over the head of both legs.
Lay the middle of the main-tackle strap under the cross above the fore guy; bring the ends up over the cross; hook the upper block to them under the cross below the fore guy and mouse it, taking care that the splice comes in the middle of the strap and that the fall leads to the rear.