Abstract: This invention relates to a submersible electrical cable splice, and the method of making the same. It employs a housing sleeve of an elastomeric material which is hollowed out to include a central cavity connected at each of the ends by bores which are of slightly smaller diameter than the cables which are to be connected. In the process of making the splice, one end of the housing sleeve is lubricated, and one of the cables is pushed clear through and out the other end of the housing, where it is joined to the other cable end in abutting relation in a metal crimp connector. The joined cables are then pulled in the opposite direction back through the bore of the housing sleeve, until the crimping connector seats in the central cavity, which is of slightly smaller diameter than the crimping connector, squeezing out the air. It should be understood that a pocket or void or space is to be eliminated or reduced to insignificant amounts.

Abstract: A wrench for use with mine wall support bolts is disclosed. The wrench includes an elongated shaft shaped to be engaged and driven by a mine bolting machine. The shaft is coupled to a bolt socket by a universal joint. A removable, resilient, impermeable sleeve surrounds the universal joint. The sleeve is formed of a non-metallic material having physical properties which limit the movement of the universal joint and also seal the joint against infusion of solid and fluid matter. The sleeve is secured in place by a removable clamp.