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#1
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Dial set Compur shutter help
I have a compur shutter that I need to try to find a main spring for. The
shutter is a dial set compur. O.D is approx 79mm (about 3.1 in) and the thread diameter for the flange is about 44mm (about 1.75 in). Markings on the face say D.R.P No258648 D.R.G.M. Patent dates are March 31, 1914 and December 29, 1914. Markings on the shutter speed dial say ICA Dresdin. For what it is worth, the lens mounted in the shutter is a Carl Ziess Jenna Tessar 15cm f 4.5 lens. If anyone can provide some info about the origin of the shutter, what camera it originally came with may help. Any help is appreciated. |
#2
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Dial set Compur shutter help
"st" wrote in message ... I have a compur shutter that I need to try to find a main spring for. The shutter is a dial set compur. O.D is approx 79mm (about 3.1 in) and the thread diameter for the flange is about 44mm (about 1.75 in). Markings on the face say D.R.P No258648 D.R.G.M. Patent dates are March 31, 1914 and December 29, 1914. Markings on the shutter speed dial say ICA Dresdin. For what it is worth, the lens mounted in the shutter is a Carl Ziess Jenna Tessar 15cm f 4.5 lens. If anyone can provide some info about the origin of the shutter, what camera it originally came with may help. Any help is appreciated. I don't have a source for parts for these old shutters. You might try a couple of the shutter repair technicians, they might have something but would probably want to repair the shutter. I will list some below. Like anything else nearly eighty years old parts may be hard to find. Compur shutters were made by Fredrick Deckel, in Munich. The dial set was made from about 1914 to about 1930, after that it was replaced with the rim set version. The Compur is based on the clock work regulator invented by Theodore Bruch of the Ilex company in Rochester N.Y. ICA on the shutter indicates it came from an ICA camera company, which became part of the Zeiss-Ikon combination in 1926. ICA did not make the shutter or lens. Dial set Compurs have spiral clock motor type springs which are contained in an assembly under the cocking lever. I don't think spring were ever available separately, the entire motor assembly was replaced. Rim set type Compur shutters mostly have helical springs (screen door type springs). Curiously, Compur went back to the spiral type spring for their late Synchro-Compur shutters. Ken Ruth Photography on Bald Mountain Davenport, CA 831-423-4465 Phone calls Wed & Thur 9-5 and Fri 9-Noon. http://www.baldmtn.com/ Paul Ebel Shutter Repair 1 715 778 4372 w230 Terrace Street, Box 86; Spring Valley, WI 54767. I don't think Paul has e-mail or a web site. W. W. Umbach dba Z-V Sevice 1410 Seafarer Dr; P O Box 754 Oriental, NC 28571 (252) 249-2576, FAX (252) 249-3924 For old Zeiss and Voigtlander cameras There are others but I don't have contact information. -- --- Richard Knoppow Los Angeles, CA, USA |
#3
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Dial set Compur shutter help
Is there a reasonably reliable way of establishing the age of a dial-set
Compur shutter withing the two dates of 1914 & 1930. I have one from a Goerz Tenax 9x12 containing a Doppel Anastigmat 13cm f6.8. No sn on the lens. This is going to go onto my Crown Graphic. |
#4
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Dial set Compur shutter help
"Neil Purling" wrote in message ...
Is there a reasonably reliable way of establishing the age of a dial-set Compur shutter withing the two dates of 1914 & 1930. I have one from a Goerz Tenax 9x12 containing a Doppel Anastigmat 13cm f6.8. No sn on the lens. This is going to go onto my Crown Graphic. I have never seen any serial number data for Deckel shutters. There were some changes over the life of the shutter but I don't have specific stuff that would help date it. The lens might be more help, is there anything else written on it beside the above? Goerz changed the names of the Dopple Anastigmat Type A to Dagor in 1900. However, that substantially predates the shutter. When I get home I will look up the Tenax in McKeown's to get the manufacturing dates, that's about the best I can offer. Richard Knoppow Los Angeles, CA, USA |
#5
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Dial set Compur shutter help
Richard Knoppow wrote:
"Neil Purling" wrote in message ... Is there a reasonably reliable way of establishing the age of a dial-set Compur shutter withing the two dates of 1914 & 1930. I have one from a Goerz Tenax 9x12 containing a Doppel Anastigmat 13cm f6.8. No sn on the lens. This is going to go onto my Crown Graphic. I have never seen any serial number data for Deckel shutters. There were some changes over the life of the shutter but I don't have specific stuff that would help date it. The lens might be more help, is there anything else written on it beside the above? Goerz changed the names of the Dopple Anastigmat Type A to Dagor in 1900. However, that substantially predates the shutter. When I get home I will look up the Tenax in McKeown's to get the manufacturing dates, that's about the best I can offer. Here is one datapoint, in case you are making up a list: Meyer Gorltiz Nr.982076 Weitwinkel Aristostigmat 1:6.3 f=12cm is on F.Deckel-Munchen Compur (rim set) shutter A477709. The shutter has no flash contacts, has a built-in self-timer, T, B, 1, 2, 5, 10, 25, 50, 100, 200 settings. Whatever its age, everything started working, and still works, once I had Marty Forscher and one of his merry men CLA the thing. Before that, the self-timer did not work, and when it did not, nothing else worked either. I did have to take it apart many years ago because the aperture blades were not working right. They look symmetrical, but they are not. They are thin metal (probably stamped) with tiny steel pins staked through them. The pins look symmetrical, too, but they are not, and if you put one in upside down, they come out. It took a while to figure that out. I could not measure the difference, but I could feel it with my fingers. -- .~. Jean-David Beyer Registered Linux User 85642. /V\ Registered Machine 241939. /( )\ Shrewsbury, New Jersey http://counter.li.org ^^-^^ 07:35:00 up 5 days, 3:50, 2 users, load average: 4.04, 4.06, 4.00 |
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