§ 21. Mr. Dayasked the Secretary for Mines when the last series of pit trials were completed for the use of gas-alarm detectors; and whether any future experiments are to be made or are being made at the present time?
§ Mr. LloydThe last completed series of official pit trials of automatic firedamp detectors was that carried out on the Ring-rose Firedamp Alarms towards the end of 1937 on behalf of the Committee on the Firedamp Detector Regulations; and fresh regulations have since been made, based
§ shire, and the average weekly output per man, for each of the years 1929 to 1938?
§ The Secretary for Mines (Mr. Geoffrey Lloyd)With the hon. Member's permission, I will answer these questions in the form of a statistical table which I will circulate in the OFFICIAL REPORT.
§ Following is the information:
§ on the Committee's recommendations, which require the use of automatic detectors in certain circumstances. A number of other appliances, some of which have received tests underground, are in various stages of development, but none has yet been officially approved.
§ Mr. T. SmithHas any progress been made with regard to the automatic detectors?