Tue Dec 19, 2006 2:40 am
Hi, Guys!
Bin Travelin', so long time no post. Great diving: Singapore, Bali, Komodo,Darwin,Sydney, and last week Curacao. Mostly biz, but always time to get wet! Re: the posts on Canadian reg manufacturers - L'aire Liquide was the eastern Canadian branch (Quebec) of the French parent and Canadian Liquid Air was the western Canadian branch (British Columbia). The details are in the long monograph "Emile Gagnan: Architect of the Aqua-lung" I wrote and presented at the Historical Diving Society conference a couple of years ago. The HDS mag "Historic Diver" published a shorter version, as did 'Diver' mag. Most all of the queries the posters have been putting forth are in there. As for 'old parts' at CLA or L'aire Liquide - these are well worn paths. If there are any there now, then I must have been stoned or not paying attention!! The last of the CLA parts were shipped to L.A. in 1954 to use in servicing old USN regs.
Other stuff: Canadian Earl Scott's involvement in the Hydro-pak was long after the CG regs were produced in Canada and the US. (see monograph for dates, circumstances) The 'International Divers' regs were a knock-off of the GC's (and others) but there's much more to that story. I've written about ID briefly, in 'Historic Diver' - I was a dealer for ID in the 50's and am currently finishing yet another article and monograph on the owner. Re: Normalair. Right, built in Yeoville, UK. Never produced in Canada. A lot of units sold through reps in Quebec,Ontario and B.C. Very comfortable rig, soft,liquid-filled face seal ( filled with vodka/water 50/50 -otherwise big algae problem since was usually filled from users mouth!) Good in shallow water but very high C02 in deep water - also prone to freezing since it had no hp reduction stage. Air went from bottle directly to an upstream tilt-valve at hp. (yeah, you read right! an upstream tilt valve operating at 2 grand+) Well made rig, but not popular because of full-face mask - much like Hydro-pak. Lets see . . . other Canuck regs: Lou Singer at Supreme divers sold a AN6004 Diluter Demand conversion under the trade name 'Sea Horse" in the 50's. Not too many left, since they had an aluminum body (like the 2nd model Divair) Re: Commeinhes - The RC series were the fire-fighting models - first patent 1935. (Rene Commeinhes) His son Georges produced the amphibious model (GC series) in the early 40's I have a complete set of these units - all models from 1935 through 1952. (dates and circumstances in Gagnan paper) Very interesting design. L'aire Liquide considered them serious cpmpetition to the CG 45's - particularly since they were approved by the French Navy! Lots of the early stuff was done in Canada. At this years HDS conference, I authored another long,dreary monograph on the first multi-tissue decompression computer ( actually, I was in New York with NASA, giving a talk at 'NextFest' a future show put on by 'Wired' magazine - on that day, so my daughter gave the decom computer paper for me) Guess where the decompression computer was invented? Yup. Many of you avid decom divers will be aware of the DCIEM tables - they, and the algorithms that support them, were developed by use of the first decom meter. There'll be an article on this in the March 2007 'Diver' mag. Yipes! I'm rambling . . .
Regards and seasons best to all hosers - from the Great White North