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Some Special Interests => Occupation Interests => Topic started by: msfarrar on Friday 10 April 20 03:19 BST (UK)

Title: What is This Optical Instrument ?
Post by: msfarrar on Friday 10 April 20 03:19 BST (UK)
Looks like the disk can be rotated slowly by turning the handle. 
And that whatever is on the disk can be viewed through the eyepiece ?

What is it ??? The picture was taken somewhere around 1900-1910 I think 
Title: Re: What is This Optical Instrument ?
Post by: mckha489 on Friday 10 April 20 04:13 BST (UK)
Do you know who the man is?
What was his occupation?
Hobbies?

There is a mirror strategically placed on the table, no doubt directing light through the disc.
I think the crucial question is, what is the disc?
Thoughts so far - Is it a thin piece of rock/stone?




Title: Re: What is This Optical Instrument ?
Post by: Erato on Friday 10 April 20 04:18 BST (UK)
Or maybe a soil sample.  Looking at pictures of antique microscopes, I haven't found anything like it yet.
Title: Re: What is This Optical Instrument ?
Post by: mckha489 on Friday 10 April 20 04:20 BST (UK)
I wondered about a spectrometer, but they are not right.
Title: Re: What is This Optical Instrument ?
Post by: youngtug on Friday 10 April 20 07:08 BST (UK)
Could it be some form of Phenakistoscope with a viewing "scope"
That is if it is one item, not two.
Title: Re: What is This Optical Instrument ?
Post by: Mike in Cumbria on Friday 10 April 20 09:30 BST (UK)
I think it can only be a microscope, although I can't find any images quite like this. I found a few similar, but not quite the same.
By 1910, microscopes looked pretty similar to the type we used at school, so I wonder if he's demonstrating a much earlier instrument -hence the photo.

The disc could be a glass plate, on which he's grown some bacteria or fungi.
Title: Re: What is This Optical Instrument ?
Post by: Mike in Cumbria on Friday 10 April 20 09:34 BST (UK)
Hooke's microscope was rather similar.
https://blog.sciencemuseum.org.uk/wp-content/uploads/2015/09/SSPL_10447127_Comp.jpg (https://blog.sciencemuseum.org.uk/wp-content/uploads/2015/09/SSPL_10447127_Comp.jpg)
Title: Re: What is This Optical Instrument ?
Post by: Gadget on Friday 10 April 20 09:45 BST (UK)
He looks very like William Henry Perkin of purple fame:

https://www.vox.com/science-and-health/2018/3/12/17109258/sir-william-henry-perkin-google-doodle-birthday-180-mauveine-purple-dye

It could be just his beard though  :-\
Title: Re: What is This Optical Instrument ?
Post by: msfarrar on Friday 10 April 20 09:49 BST (UK)
Its a photo of an uncle of my great grandmother.  I don't know his occupation...  Sorry I can't tell you any more.
Title: Re: What is This Optical Instrument ?
Post by: Mike in Cumbria on Friday 10 April 20 09:50 BST (UK)
Its a photo of an uncle of my great grandmother.  I don't know his occupation...  Sorry I can't tell you any more.
Do you know his name?
Title: Re: What is This Optical Instrument ?
Post by: mckha489 on Friday 10 April 20 10:12 BST (UK)
Have you got him on a census?
Title: Re: What is This Optical Instrument ?
Post by: msfarrar on Friday 10 April 20 11:32 BST (UK)
Martin Mitchell.   Family from todmorden or possibly Rochdale.   Haven't found him yet on the census. 
Title: Re: What is This Optical Instrument ?
Post by: trystan on Friday 10 April 20 11:35 BST (UK)
Could it be for examination of weave in a fabric?
Title: Re: What is This Optical Instrument ?
Post by: Ian Nelson on Friday 10 April 20 12:02 BST (UK)
Martin Mitchell should be traceable .. is he somehow related to Sir David Brewster ?

he is credited with inventing the kaleidoscope
Title: Re: What is This Optical Instrument ?
Post by: Ian Nelson on Friday 10 April 20 12:26 BST (UK)
after some searching ..
Title: Re: What is This Optical Instrument ?
Post by: hepburn on Friday 10 April 20 12:40 BST (UK)
https://cdn.shopify.com/s/files/1/0250/8550/products/Victorian_Parlour_Kaleidoscope_2.jpg?v=1513246032

So he wasn't a scientific man...He was enjoying the rage for Kaleidoscopes..
Title: Re: What is This Optical Instrument ?
Post by: msfarrar on Friday 10 April 20 12:45 BST (UK)
Thanks Ian.  I think you are on the money.   !
 
Title: Re: What is This Optical Instrument ?
Post by: Mike in Cumbria on Friday 10 April 20 13:16 BST (UK)
Well done - that's it.
Title: Re: What is This Optical Instrument ?
Post by: lzzl25 on Wednesday 25 August 21 19:19 BST (UK)
I know this is an old thread but just to add Martin Mitchell is my 3x great uncle, he was a Gardener according to the census records. What is curious however is his burial record of 3 Apr 1929, Bacup Cemetery, the notes state " Kozy Picture Hall". No idea if this ties in to this picture at all
Title: Re: What is This Optical Instrument ?
Post by: sarah on Wednesday 25 August 21 20:07 BST (UK)
Hello izzi25, it must have a connection to this Church that was once a picture house.

http://cinematreasures.org/theaters/38907

Regards

Sarah
Title: Re: What is This Optical Instrument ?
Post by: lzzl25 on Thursday 26 August 21 19:08 BST (UK)
Thanks for the link Sarah