Ravenfield Designs Ltd

Ferranti-Shirley Viscometers date from the early 1950s, and were developed in conjunction with the Shirley Institute, University of Manchester. As the name suggests, the main elements of a cone and plate viscometer are a plate and a cone. The liquid under study is placed between the two. The location of the cone and the plate to each other is the critical factor in taking an accurate reading; the accuracy level needed is to 2-3 microns.

Viscometers are used in many industries including food science and polymer engineering. After the closure of Ferranti Ltd and all its interests being sold off. Mr Taylor, an ex-employee of Ferranti Ltd, and Managing Director of Ravenfield Designs bought the rights to manufacturing the Ferranti-Shirley viscometers in 1994.