Binn's Road Solution To Boss Slipping

The Binns Road model room solution to the problem of bosses slipping on axles, was to use grub and set screws with a point.  These were hardened, possibly case hardened by the grey appearance.

On dismantling old display models it was necessary to drive the spindle from the boss, as the screw point made a deep dimple and a raised burr in the soft shaft.

Reproduced from spanner with permission of Ken Wright Coventry.

Collar With Screw, part 59Part 59

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