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Who might have made this?

An aid to marking out, maybe.

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Robert Dodds06/12/2014 23:11:59
322 forum posts
63 photos

img_20141206_223841~2.jpg

Hi,

I've recently joined the Super Adept owners club and amongst the little bag of extras that goes with these things I spotted this little plate. I recollect that style of scribing being on old plastic 12" school rulers and the angled lines allowed you to split a dimension to 1/100" pretty easily. What type of craftsman would be likely to make and use something like this after school days?
I don't know the history of the Adept but is this plate typical of perhaps a watchmaker's toolkit or is there a better explanation of its history?

Bob D

Michael Gilligan07/12/2014 04:34:21
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20289 forum posts
1064 photos

Bob,

That's an interesting, and potentially useful litle device; it may have been used as a fine-reading scale on the Super Adept. ... I wonder if you will find matching screw-holes on your lathe?

Incidentally; that marking is known as a Diagonal Scale, and I suspect that the third hole in your plate [upper-left in your photo] relates to the way it was engraved.  Although it's not a particularly pretty piece of work, I think it was probably made by someone who knew what he was doing.

MichaelG.

.

Edit: for those who may not be familiar; here is a good note about Diagonal Scales.

Edited By Michael Gilligan on 07/12/2014 04:39:13

Michael Gilligan10/12/2014 09:20:46
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20289 forum posts
1064 photos

^^ Bumped ^^

[because I think it's interesting]

MichaelG.

WALLACE10/12/2014 10:06:31
304 forum posts
17 photos
I could have done with something like this a few days ago when adapting a light to take a GU10 bulb...

A brief look with a rule gave the impression the bulb holder fixing screws where 12mm apart - the poor fit and a search on the net showed they should have been 12.1 !


W.
mark costello 110/12/2014 17:02:53
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725 forum posts
12 photos

How does it work? Never seen one before.

Michael Gilligan10/12/2014 17:07:51
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20289 forum posts
1064 photos
Posted by mark costello 1 on 10/12/2014 17:02:53:

How does it work? Never seen one before.

.

Mark,

[as mentioned above]

Edit: for those who may not be familiar; here is a good note about Diagonal Scales.

MichaelG.

IanT10/12/2014 18:30:13
2002 forum posts
212 photos

Always educational Michael - thank you.

smiley

IanT

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