Topper Revisited
Clockwise Data produced this 24 page (A5 size) illustrated booklet for
the Manchester Polymer Group. It is 
the story of technical innovation by the Manchester plastics processing company, Rolinx, during the 1970s. The result was the Polypropylene version of the 'Topper' sailing dinghy, the hull and deck of which were manufactured by the process of injection moulding. Each dinghy was composed of the two largest injection mouldings in the world at that time - a remarkable technical achievement!
The story is told by Peter Bean, in the form of an illustrated presentation which is now reproduced with his permission in this booklet. Peter sets the scene with an historical resume of the plastics products manufactured by Rolinx dating from 1946. He then explains the Topper project, and unfolds the successive technical issues in a surprisingly readable account of bringing this award winning boat into viable production.