The fall of the cat tackle is belayed on a big cleat on top of the beam which crosses over the cathead. The Corel instructions show an incorrect arrangement. The cat blcok is single-sheave block with an iron hook on it. The fall deadeneds in a hole in the cathead behind the sheave slot, then down to the cat block, then up and over one of the sheaves in the end of the cathead, then back to the cleat. The other hole and sheave are for the cat stopper, a line to tie the head of the anchor up to the cathead. Fromt he hole down through the anchor ring, up and over the other ehsave in the cathead, and belayed on the same big cleat as the cat tackle.