Abstract: In a module with tufting tools, especially needles the tufting tools are cast with one end in a plate-shaped base The length of the base corresponds to a multiple of the center distance of the cast-in tufting tools. The base has at least one opening which is in the form of a slot running perpendicular to the locating strip(s), which is open to the upper edge of the base. The base can be of symmetrical design and have a locating strip both at its front and at its rear locating face, serving to precisely position the module on a bar. The module and thus also the tufting tools cast into it can thus be used in two different rotational positions.

Abstract: To provide for better fitting and pleasing out appearance of a hearing aid having an element introducible into the ear canal of a user, and an externally accessible housing which retains electronic components, a battery, and ON/OFF switch and volume control elements, the housing is formed in spherical or, rather, truncated-spherical shape, removably fitted on a fitting element introduced into the ear canal. This spherical shape is less obtrusive than others, and may be formed similar to costume jewelry.

Abstract: Sheets, strips or filaments of thermoplastic resin are produced by one or more extruders working into a remote shaping die that is movably juxtaposed with a cooling drum around which the hot product issuing from the die mouth is to be wound, the die being connected with the extruder or extruders via one or more flexible ducts having heating elements embedded in their walls. Each duct may comprise an inner hose of Teflon, an outer envelope of reinforced silicone rubber and various intermediate layers including a heating layer in the form of a wire coil or mesh and a surrounding heat barrier of asbestos.