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What is this item

some kind of gauge

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Nobby	01/03/2018 15:08:09
587 forum posts 113 photos	Edited By Nobby on 01/03/2018 15:09:18 Edited By Nobby on 01/03/2018 15:10:35
ASF	01/03/2018 15:12:52
131 forum posts 12 photos	Its one of these LINK
Nobby	01/03/2018 15:30:38
587 forum posts 113 photos	Thank you ASF came with a job lot of tools I bought on line
Neil Wyatt	01/03/2018 15:54:22
19226 forum posts 749 photos 86 articles	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
Michael Gilligan	01/03/2018 16:04:23
23121 forum posts 1360 photos	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.
Nobby	01/03/2018 17:31:18
587 forum posts 113 photos	Its still a puzzle for me . Its well made
Michael Gilligan	01/03/2018 17:35:51
23121 forum posts 1360 photos	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
Nobby	01/03/2018 17:54:25
587 forum posts 113 photos	Hi Michael Thank you for link It makes sense to me Stress over Strain = E etc Nobby

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