Tests on Dunlop metacone for H.S.F.V.5 (IM-PS-004)

The Metacone spring, produced by Dunlop Polymer Division to drawing No. LM4824, was tested with a view to using it for the secondary vertical suspension on H.S.F.V.5. The Metacone is a two stage spring comprising of a tapered rubber cylinder whose inside and outside bores are offset axially and...