Grace's Guide To British Industrial History

Registered UK Charity (No. 115342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 149,657 pages of information and 235,472 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Hall Signal Co

From Graces Guide

1904 The company had fitted automatic signals on the North Eastern Railway between Alne and Thirsk. The signals were worked by carbonic acid liquefied gas stored in cylinders at the signal, the gas being admitted to work the signals by valves controlled electrically by the track circuit. The signals stand normally at danger except when lowered for a train to enter a section that is clear.

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