The Breakroom > The Water Cooler

Mystery Measuring Stick

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S. Heslop:

--- Quote from: vtsteam on May 04, 2015, 08:48:36 AM ---Wouldn't a wide blade on top like that tend to block what you are aiming at to a dangerous degree? If there's movement laterally or behind, how can you tell?

--- End quote ---

I misread the website I linked and it suggests that those tangent sights were used for direct fire in 19th century artillery, so now the blade thing is back to confusing me.

steampunkpete:
Thank you all very much for your ideas and suggestions.

I think that I am probably right in thinking it is a calibration device for artillery. It's purpose would be something like fine alignment of the computer to the cradle or the piece, so only a very small scale would be needed. It is conceivable that it might be for the setting up of indirect fire equipment.

I think that a visit to the RA museum is now on my to-do list.

Peter

Joe d:
Found it!  This thing is a ventometer, used for adjusting military rifle sights

http://www.militaryrifles.com/britain/MHVentometer.htm

If you decide you don't need it, let me know :)

Cheers, Joe

(edited for crap spelling :doh:)

vtsteam:
Ahh, click! The fact that it isn't a sight itself and is removed solves all the questions I had re robustness, the measurement increments, why vernier, and wouldn't it block the view.

It is a removable adjusting tool. All of those then are answered. But also as a tool for setting sights, it does relate to weaponry and angular measurement, as Rob said early on.

Arbalist:
Joe's link is pretty conclusive. I'm surprised though as it doesn't look robust enough and even looks bent in the first picture.

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