Box spanner, with handle cranked at 90 deg. Overall length 3.3". For use on nuts measuring
7/32" across flats, fitted on P.O. standard-type uniselectors, G.E.C. Co.ís minor
switches, 3000 type relays and A.E. Co.'s polarized relays.
Similar to Box, Cranked, No. 1, but for nuts 1/4" across flats. Used for the
adjusting screws on the rockers of the interrupter spring assembly on
A.E. Co.'s uniselectors and the fixing screw for the interrupter-spring assembly on
S.T. & C. Co.ís uniselectors. Also for the hexagon nuts on the alarm and flat
compensating spring-set assemblies of Machines, Impulsing, No.1.
Tubular spanner with a doubly-cranked handle. Overall length
3.2". For nuts 1/4" across flats which are fitted on
A.E.C.co.ís polarized relays.
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Last revised December 28, 2007