Spring clip fastenings for F.B. rails on concrete sleepers. Statistic tests on the R.N.K.6. (representing the R.N.B.6.) rail clip used in an assembly incorporating the bolt, nut and washer with cast-in anchor place (E-138)

The [text omitted as illegible] Company Limited submitted to the Civil Engineering Department a[text omitted as illegible] French type clip called the R..N.B.9. fastened by a [text omitted as illegible], nut and [text omitted as illegible] in conjunction with an anchor plate cast into the [text omitted as illegible] sleepers.