What is this item

What is this item

This topic has 8 replies, 4 voices, and was last updated 1 March 2018 at 17:54 by Nobby.

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1 March 2018 at 15:08 #343824
Nobby
Participant
@nobby
Edited By Nobby on 01/03/2018 15:09:18

Edited By Nobby on 01/03/2018 15:10:35
Advert

1 March 2018 at 15:08 #18861
Nobby
Participant
@nobby
some kind of gauge
1 March 2018 at 15:12 #343826
ASF
Participant
@asf
Its one of these

**LINK**
1 March 2018 at 15:30 #343829
Nobby
Participant
@nobby
Thank you ASF came with a job lot of tools I bought on line
1 March 2018 at 15:54 #343836
Neil Wyatt
Moderator
@neilwyatt
I assume you put a full diameter piece in the zero position to set it, and the figures tell you how much smaller a stretched piece is.

Neil
1 March 2018 at 16:04 #343839
Michael Gilligan
Participant
@michaelgilligan61133
Posted by Neil Wyatt on 01/03/2018 15:54:22:

I assume you put a full diameter piece in the zero position to set it, and the figures tell you how much smaller a stretched piece is.

.

The intriguing bit being that the scale is calibrated as 'Reduction in Area'

Presumably 0 to 96% reduction.

That's neat !!

MichaelG.
1 March 2018 at 17:31 #343854
Nobby
Participant
@nobby
Its still a puzzle for me . Its well made
1 March 2018 at 17:35 #343855
Michael Gilligan
Participant
@michaelgilligan61133
**LINK**

http://www.instron.us/en-us/our-company/library/glossary/r/reduction-of-area

.

The one illustrated on this page has a patent number:

http://www.mathsinstruments.me.uk/page60.html

… but it's illegible

MichaelG.

Edited By Michael Gilligan on 01/03/2018 17:48:41
1 March 2018 at 17:54 #343857
Nobby
Participant
@nobby
Hi Michael
Thank you for link It makes sense to me Stress over Strain = E etc
Nobby
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