Abstract: A lightweight cable support ladder comprising siderail members, preferably made from a lightweight material, and rungs, also preferably made from a lightweight material. The rungs are friction fitted into continuous slots in the siderail members and may be welded for added rigidity. The basic ladder may be preassembled in standard lengths. Joining members, which allow either horizontal or vertical changes in direction for the ladder, are friction-fitted into slots in the siderail members to provide for rapid, accurate, and rigid assembly. Hangers for either vertical or horizontal surfaces are also provided which snap-fit over the siderail members of the ladder. The rung members are provided with serrated or textured edges to provide a non-slipping attachment location for the cable ties positioning the cables on the ladder.

Abstract: A tool for use in a moulding machine suited to introducing plastic material under pressure into the mould, comprises a two part mould defining a mould cavity, the mould cavity including a recess formed in one of the parts. The other part closes the recess in use and has slidably mounted therein at least one support member for supporting a core insert in the mould cavity. The or each support member being moveable between a first position in which the member projects into the mould cavity to support the core insert at the commencement of a moulding operation and a second position in which the member is at least partially retracted from the mould cavity to disengage from the core insert. Thus when material is introduced into the mould cavity the or each support member is urged from the first to the second position by pressure of the material after the core insert has been enveloped in the material.

Abstract: A cable clamp comprises a base member having two arms, each arm being attached to the base member at spaced apart locations thereon. The arms are pivotably mounted on the base member and a bolt and a nut are provided for securing the free ends of the arms together. Each of the base member and the arms has a pad for gripping a cable or group of cables. Each of the arms having two longitudinal grooves, one in each side edge of the arm and each arm pad having projections which engage in said grooves so that the arm pads are slidable for at least limited movement along said arms.