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| Colliery Engineering | October, 1960 |
Traffic Control at the Hawthorn combined mine
Drawings and Photographs accompanying the article
Fig. 3. View of driver’s control point at Signal No. HL9G for selection to the areas shown. The top plunger-control is for release purposes when drivers have selected the wrong route in error
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Fig. 3. View of driver’s control point at Signal No. HL9G for selection to the areas shown. The top plunger-control is for release purposes when drivers have selected the wrong route in error
Image Reference: L-00571-03-0065-F03
Article reproduced from a copy of the magazine held at National Mining Museum Scotland, Newtongrange, Midlothian.
Contains public sector information licensed under the 
