: In order to resolve some obscure problems of sling for stevedoring such that,
  a, the strength of wire rope or fiber rope being pulled through the spliced eye of rope,
  b, the strength of wire rope or fiber rope being pulled and bended at the edge of steel or timber,
  c, the safe load for hook,
  d, the safe load for ring,
the load tests were done by the testing machine of horizontal type.
    As a result of these tests the practical and available data were obtained.