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JULY 1972 PIGMENT AND RESIN TECHNOLOGY 39 Disintegrator gear positive displacement liquid hotplate. It is available with a Displayed at Rubberex at flow meter. This is said to be PTFE coated plate. Speed of Brighton recently was the Duplex completely free from stagnant stirring is steplessly variable up to Disintegrator, a single process areas or pockets of any kind, and 1000 rev/min, and the maximum dissolver employing two work can be constructed from cast iron, hotplate temperature is 325°C. heads mounted above each other steel, bronze or stainless steel. in a standard Silverson mixing Accuracy is claimed to be 0·5% of Pot mill frame. The upper head is designed instantaneous flow. Use of a Called the Megapot, this to tear blocks of tough plastics magnetic coupling register drive pot mill is based on vibrational which would otherwise require avoids stuffing boxes and as energy, and has been designed guillotines or similar powerful sociated leakage problems. not only for faster processing than plant. The lower head is a stan Brooks Instruments Ltd., Of- the conventional pot mill but to dard model which reduces the ferton Industrial Estate, Hempshaw take containers of various sizes, torn pieces to a solution or fine Lane, Stockport, Cheshire SK2 5TT. in plastics, such as polyethylene, suspension using hydraulic and porcelain or steel. mechanical shear. Thickness gauge Another addition to the range of gauges available for coating thickness is the Eddytector 173. This is a portable eddy current meter for non-destructive meas urement of the thickness of non- conductive coatings applied to a non-ferrous metallic base. Suit It is a free-standing mill, able coatings include anodising, The entire mix is subjected with a totally-enclosed vibratory paints, enamels and plastic coat to a continuous circulation due to actuating system. Under 56cm the combination of opposing ings. (22in) in height it is compact thrusts of the two heads. This enough to stow away when not in Elcometer Instruments Ltd., maintains a uniformity throughout use. Small handwheels on the Fairfield Rd., Droylsden, Manches the mixing period. It is therefore ter M35 6AU. sides enable the racks for the pots easy to stop the process at any to be adjusted simply and quickly, time, when reduction below a to take containers from about 6cm Magneti c stirrer certain crumb size is undesirable. diameter up to 14cm. Quantities The original hotplate/mech of product from 200ml to about Silverson Machines Ltd, anical stirrer from Chemlab has 12 litres can be handled, while Waterside, Chesham, Bucks. now been redesigned. The unit is large numbers of small samples designed so that any spillage falls can be run simultaneously. Displacement meter clear of the case. Also the over hang provides extra working area Recently presented to the Pilamec, Clearwell, Coleford, when the unit is used purely as a U.K. market is the Brooks oval Glos.
Pigment & Resin Technology – Emerald Publishing
Published: Jul 1, 1972
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