Kabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft

Kabel-und Metallwerke Gutehoffnungshuette Ag

Georg Maltz

Michael Still

Ottmar Leuchs

Hermann-Uwe Voigt

Frank Patzke

A cable splice, tube joint, or the like, is covered by a fitting constructed as a split hose provided along one edge with a rail made of metal or a strong synthetic; a similar rail element or an integral fastening element is provided on the other edge and secured to the first rail by welding, adhesive bonding, or soldering in order to obtain a joint which resists tension and compression. The hose has been laterally slipped onto and over the cable splice or tube joint and, after the split joint has been sealed (or concurrently therewith), the hose is heat-shrunk. Various rail configurations are shown; a method of making the hose is explained.

Longitudinally divided hose-like filling

An insulated cable has a hermetically enclosed sheath. Between the sheath and the insulation of the cable is a filler of a thermoplastic material. When the cable is heated (e.g. a localized fire) gases and acids that are given off by the insulation are absorbed by the filler which also expands resulting in a structural blockage to the longitudinal flow of the acids and gases.

Fire resistant electrical cables

The outer conductors of two coaxial pairs each is received by slotted axial ends of a sleeve, so that the respective fingers engage the outer conductors, and wherein annular solder on the fingers and in the slots holds the fingers on the conductors and provides bonded connections between the sleeve and the outer conductors. A heat shrunk hose is slipped over the sleeve holding it additionally to the outer conductors. The inner conductors of the pairs are conventionally interconnected.

Growing community of inventors

Burgdorf, Germany

Georg Maltz