Abstract: Methods are disclosed for the large-scale isolation of 98.5% pure Nimbin from Neem seeds. The ultimate product is obtained first from an alcoholic extraction with subsequent partitioning using chlorinated hydrocarbon solvents. A resulting partitioned layer, which is recovered and concentrated, is then stripped with a hydrocarbon solvent, distilled and cooled to ambient temperature. The resulting mass is mixed and washed in a second hydrocarbon solvent, after which the resulting solid is washed in methanol and treated with activated carbon to produce a crystalline, tasteless product having a melting point of approximately 210-212° C.

Abstract: A sports eyewear frame having resilient padding attached to the frame by means of one or more tongues which are attached to the pads, and interlocked in openings provided in the frame. The pads, which can be molded-on or snapped-on, provide the sports frame with lifetime padding under normal wear and tear conditions.

Abstract: An adapter for connecting a compact gas vapor electric-discharge lamp to standardized incandescent lamp fittings. The adapter (11) comprises a coupling housing (12), a holder part (13) for the base (14) of the lamp, and a conventional incandescent-lamp base (15). The adapter has a basic form corresponding substantially to the lower part of a standard incandescent lamp. The upper part of the adapter is formed by the holder part (13), which presents a central recess (21) into which the base (14) of the lamp (17) can be inserted, and a reflective cover plate (22), which surrounds the recess (21). The ignition and drive circuits (16) of the electric-discharge lamp includes an electronic frequency converter for converting mains frequency to a high frequency. The constituent electrical components are incorporated both around the recess (21) and in the lamp base (15) and are mutually connected via a circuit card (18) arranged between these parts.