Tuesday, April 29, 2008

JCM 1 Lamp

/></a><br /><a onblur= /></a><br />hi tom,<br />i notice its got an 85 stamped near the base of the glass, would 1985 be about right.<br />johnson,clapham and morris were wire makers from greymare lane in east manchester. so they made gauze for miners lamps and like many companies from the early 1900's made lamps.<br />they would have supplied us with lamp gauze. when they decided to sell the lamp business we bought it in the mid 1950's.<br />y that time they were only making the JCM 1 which was used by the GPO( british telecom), sewer and tunelling contractors. it was used like our 1A lamp under TM1 Schedule B for testing for bad air; ie oxygen deficiency.<br />they are still used by some contractors now and in the royal naval dockyards. you hang the lamp down into a chamber and if it goes out you have to ventilate before any one can work there.<br />regards david mather<br /><br />Tom Heeran wrote:<br /> David,<br /> <br /> Could you please supply any history on the lamp attached.<br /> <br /> I only know my Dad was a foreman building the sewer around the country for Kennedy's. I have had the lamp refurbished at your workshop a few years ago when i used to look after your telephone system, I regret that I didn't note down the history of the lamp at that time, I only recall that you stated he lamp was in original order.<br /> <br /> Tom Heeran<div style=

posted by david mather at 10:45 AM

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