Quartering in the real world.

[Eric CoxParticipant @ericcox50497]

It's bad enough quartering wheels on model engines but does any one know how did manufacturers quarter wheels on full size engines and how did they get the wheels lined up so that the connecting and coupling rods went on.

[Eric CoxParticipant @ericcox50497]

[stan pearson 1Participant @stanpearson1]

Hi Eric

The wheels are fitted to the axles on plain flat keys, it was easy to cut the keyways in the axles at 90deg and the wheels on hole centres with the axle hole and crank pin

Stan

[julian atkinsParticipant @julianatkins58923]

whilst what stan states is quite correct, the fullsize loco works had very special machines for these jobs.

if you are interested have a look online how LNER 'Blue Peter' was checked after the Durham disaster, none of the ex- loco works machines surviving to do the job.

as if to clarify the use of 'special' machines, the crankpin holes in the wheels were usually bored after the wheels were pressed onto the wheels. a special boring machine was used for this job. this is quite unlike what we do in miniature.

cheers,

julian

Edited By julian atkins on 16/03/2015 23:20:36

[Neil WyattModerator @neilwyatt]

For those who want toknow what the 'Durham Disater' was:

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