a hoisting machine , such as a cable block , includes a support frame having at least two face plates , which are detachably joined together and spaced apart by at least two longitudinal members . the support frame includes a simple structural design , in which the longitudinal members are detachably joined to the face plates such that the ends of the longitudinal members are pressed against a bearing surface of the face plates in the direction of their lengthwise axis , transversely to the longitudinal member .