Non-linear mechanic and electric be-havior of a robot axis with a''harmonic-drive''gear

1,170,169. Polymerisation apparatus. SOC. ITALIANA RESINE S.p.A. 31 March, 1967 [2 April, 1966], No. 14972/67. Heading BIX. [Also in Division C3] A polymerisation apparatus comprises a vessel 2 fed with gaseous monomer via 1, and catalyst and inert liquid medium via 8 and 9; unreacted monomer is removed via 3; polymer effluent removed via 4 is pumped by pump 5 partly to withdrawal pipe 10 and partly via cooler 6 and pipe 7 to the vessel 2. The vessel is suitably stainless steel.