I remember the cassettes well.
I actually used them for a while.. It was a really solid re-usable-forever device made of about 1mm thick solid brass and and coated in a stippled metallic black. They opened when you locked the camera. (No felt and no scratches) There was a special bulk-film loader too. and a template for cutting the tongue Didn't Nikon make them for their rangefinder cameras too?
Memories of being a leica enthusiast... The good old Leica hysterical society.
Herschel Mair
Head of the Department of Photography,
Higher College of Technology
Muscat
Sultanate of Oman
Adobe Certified instructor
+ (986) 99899 673
----- Original Message ----From: Bob <w8imo@xxxxxxxx>To: List for Photo/Imaging Educators - Professionals - Students <photoforum@xxxxxxxxxxxxxxxxxx>Sent: Thursday, June 7, 2007 3:05:25 AMSubject: Re: Somewhat off topic I thinkJames Schenken wrote:> I'm trying to track down the original patent for the film cassette > used in the pre-M series style Leica cameras. My Leica reference > refers to them as> Film Magazine Model A thru Model D, the latest model before the M > series was released.>> A similar cassette was available for Contax cameras as well as for > early model Canon and Nikon camera. The earliest reference in the > patent literature that I can find is a comment within a patent on a > film loading system patented by E. Leitz in 1940 but applied for in > Germany in 1935 ( patent #2205052 )which used the phrase "the film > cassette is of a well known construction ... " The cassette is not > shown in this patent.>> It is functionally different from the Kodak patent for the 35mm film > cassette issued at about this time or a little earlier.>> Hope this is not too far off topic.>How can asking about a photographic item be off topic on a non specific photographic forum?Good luck with your quest.Bob-- ///// ( O O )--------------------oOOO-----O----OOOo-----73 de w8imo@xxxxxxxxxxxxxx I plan to live forever. So far so good........... 