Tests on permali E.G. insulated fishplates (E-389)

Early in 1960 one pair of prototype insulated fishplates for 109 lb./yd. F.B. rail was submitted to the Research Department by Messrs. Permali Ltd. for a preliminary tensile test. This type of fishplate was similar to the Standard Permali E fishplate, but was manufactured from 2mm. wood veneers with 100%...