Tool Talk
What's-It Forum => What's-It Forum => Topic started by: mtds on September 05, 2012, 12:29:54 PM
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Leather case marked "KR". Brass body with threaded caps. Optics inside. A bubble level on the outside of the main tube. What is it? Age? Field of use?
(http://fototime.com/3B7DDF63CA8D088/orig.jpg)
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Thats a Kuker-Ranken sighting level. Still for sale currently.
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OK, I'm game, how do you look through the sight and look at the bubble at the same time?
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Maybe consequently not concurrently ?
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One eye for each..........
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You'd have to be really cock-eyed to do that.
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You surely would be after doing that.....LOL
It was a little bit of a serious question tho, I have seen small sighting glasses designed for a transit, usually there is something to hold it level after you set it up with the bubble to point at a horizon line...
I'm wondering how helpfull a bubble is on a pocket glass...
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These are properly called a Locke level, after the gentleman that invented it.
They are hand held and are useful for quick leveling or checking level at a construction site. Generally used where precision isn't required and you don't want to take the time to set up a builders level on a tripod.
They are a lot easier to use if you hold it against some kind of support, like a pole.
http://constructionmanuals.tpub.com/14043/css/14043_137.htm
Mike
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I remember using these before the days of laser levels,they were good for quick checks on excavations and rough grades. I don,t recall the brands I worked with but they were brass and did look similar to yours
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see http://www.mytoolstore.com/dwhite/hand.html $68 + $14 for the case...
used on archeological digs etc where an expensive level is not needed, to expensivem or too bulky to carry, see http://www.beg.utexas.edu/coastal/thscmp/fieldprocedures.htm
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Thats a Kuker-Ranken sighting level. Still for sale currently.
Hence the impressed KR mark on the holster. Still made, and online:
http://www.krinc.net/17770/Kuker--Ranken-Hand-Levels.html
>OK, I'm game, how do you look through the sight and look at the bubble at the same time?
"The level vial is mounted atop a slot in the sighting tube in which a reflector is set at a 45° angle. This permits the observer, who is sighting through the tube, to see the object, the position of the level ..."
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Thank you all for answering my question, plus the additional interesting comments!
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That's what we do!
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>a reflector is set at a 45° angle
Ahhhh!