Abstract:
A process for the production of shaped, marbled thermoplastic products from themoplastic powder comprising heating a mixture of the thermoplastic powder, a plasticizer and a suitable coloring agent to an elevated temperature and thereafter mixing and cooling the smeary, liquid-like mass thereby produced until it changes into discrete sandlike flowable agglomerates, feeding at least two batches of differently colored agglomerates into an extruder via alternately controlled metering means and thereafter extruding the thermoplastic agglomerates from the extruder.
Abstract:
Cylindrical bushes manufactured by the direct twisting of two wires, tensioned parallel to one another, between which bristles are introduced during the twisting operation.
Abstract:
A container for fluids, particularly for liquids to be subjected to extreme impact forces, for example, as created by free fall from an aircraft in flight, which container is formed from a thermoplastic synthetic resin or similarly elastic material, and including an improved filling and drain construction comprising a substantially rigid pipe section secured to an opening in the wall of the container and extending outwardly therefrom, which pipe section has a wall thickness which decreases over its length in the direction of the interior of the container, and a thinwalled tubular section secured at the opening in the wall of the container and extending inwardly for a substantial distance, two lateral edges of the tubular section being welded to flatten the thin-walled member and cause the tubular section to function as a check valve.