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Cave Mirror Registry

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#901 apfever

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Posted 14 February 2019 - 08:24 PM

185 R  might be a spherical radius. That would be a focal length of 92.5" so perhaps a double check of the numbers.

185 R  might have been a spherical radius REFERENCE before figuring, thus the difference in actual final focal length after figuring.

just a thought.



#902 chill4

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Posted 08 March 2019 - 01:08 PM

Hello,
I just joined this community through the link from cave-astrola.com. Thought I'd register the mirror on my 1974 Model D Transportable.

Mirror size 12.5"
Serial number is M749686
F/6
74 3/16" focal length
Dated Oct 3, 1974
Writing is cursive

 

I took some pictures in 2014 when I had it re-finished. Not very good, but it does validate the mirror. I'll try again next time I have the mirror out. Also attached one of the scope and a perhaps interesting one of initials and date on the worm wheel mount housing. Dated 9-74 on a 10-3-74 scope suggests it's a Cave employee.

 

Thanks for the archive recording.

 

Curt Hill

 

I tried to get my file sizes to total less than 500KB, but not successful. I hope you don't mind 2 added postings

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#903 chill4

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Posted 08 March 2019 - 01:09 PM

Here is the Model D

 

Curt

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  • Model D Transportable.jpg

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#904 chill4

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Posted 08 March 2019 - 01:10 PM

....and the gear inscription

 

Curt

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  • Gear inscription.jpg


#905 PiSigma

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Posted 08 March 2019 - 08:14 PM

Thank you for the addition to the registry and welcome to the Classic Telescope forum Curt. I'll have it added to the next edition which I'll probably post in a month or so.

 

That is the first time I have seen such an engraving on the RA clutch. Some of the details like this that we keep finding as the registry grows are very interesting. I wonder who EFB was?




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