Ceskoslovenska Akademie Ved

Vladimir Havlin

Otto Wichterle

Jiri Vodnansky

An apparatus is provided for inserting molds containing a dosed monomeric mixture into a rotating polymerizing column by means of an alternate pushing and releasing of a column of molds falling from tubular magazines connected to said polymerizing column. Said apparatus comprises a body fabricated from a non-magnetic material which is adapted on its lower end for a firm affixation to the column and on its upper end for affixation to the magazine, and being provided with a through-opening of a diameter which is larger than the diameter of the molds, another through-hole, leading to said through-opening, which is formed perpendicularly to the axis of the said through-opening, movable jaws being movable one against the other and moved in the direction of the center by springs, and two stationary blocks placed outside said body in an opposite position while at least the outer ends of the jaws and the stationary blocks are constructed from materials which provide a mutual counterpole magnetic interaction. The apparatus may also be provided with means for eliminating the mutual counterpole magnetic interaction of the ends of the jaws and stationary blocks in accordance with the height of the column of the molds in the polymerizing column.

Apparatus for inserting molds filled with a monomer mixture into

A centrifugal casting device employing a rotatable polymerization column adapted to accommodate a plurality of vertically aligned molds and a rotatable mold-dispensing magazine disposed at an angle .alpha. to the polymerization column and adapted to dispense molds one at a time into the polymerization column.

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Roztoky u Prahy, Czechoslovakia

Vladimir Havlin