T.a.i.m.

The Tubular Axle Induction Motor was developed by R&DD in conjunction with GEC, in the late 70's and early 1980's. It appears that the idea depended upon extreme and virtually unobtainable engineering tolerances in the environment in which it was working. The idea was eventually abandoned.

Here is an internal R & D document about T.a.i.m. with a picture and diagram. 

Front

The article explains the background and operation of the hollow axle motor

Author's collection

Rear

and more

Author's collection

On test

The two axles in the dynamometer rig in the Advanced Projects Lab at RTC

BR Official

Test rig

Another shot of the axles

Author's collection

As part of the project a half-scale model was constructed by BR graduate engineering management trainees as part of their attendance at Loughborough University. I am indebted to John Lindsay for the following photographs

Schematic

A schematic drawing of TAIM

John Lindsay

Model A close up of the sectioned bearings on the model

John Lindsay

Model The model was completely sectioned to show its construction and operation.

John Lindsay

Test rig The real thing on the test bed in the Advanced Projects Lab at RTC

John Lindsay

The works The stators from TAIM

John Lindsay

Any more information or pictures of Taim would be gratefully received

 

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