What is this boxford thing for ?

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What is this boxford thing for ?

Post by Denford Admin » Mon 10 May , 2010 8:44 am

Someone has emailed asking us what this gauge could be for:
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Re: What is this boxford thing for ?

Post by Steve » Mon 10 May , 2010 12:10 pm

I Believe it is a clock. If you press in on the plunger at the bottom the dial should indicate the movement.

The brackets are to allow mounting on a Magmount base I think??

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Re: What is this boxford thing for ?

Post by Steve » Mon 10 May , 2010 12:23 pm

This link shows a bit about Denford and the Boxford Link.

I believe the part you have was made when the two companies were one.


http://www.lathes.co.uk/viceroy/

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Re: What is this boxford thing for ?

Post by Denford Admin » Mon 10 May , 2010 13:12 pm

It appears to be a inspection Dial Test Indicator - looking at these below, probably used to check flatness / runout
There are a couple hanging around in Andrew Denford's office:
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Re: What is this boxford thing for ?

Post by Steve » Mon 10 May , 2010 16:18 pm

If you look Closely you can see the "Denford Engineering Co Ltd" on the dial!

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Re: What is this boxford thing for ?

Post by Ridgeback » Wed 03 Feb , 2016 0:51 am

Hi Guys,

This bit of kit is a “Comparator”, it compares your turned or milled part to a given size.

You set the Comparator by placing a pack of slips of known size between the clock plunger (pointed end) and the base. The Comparator is then lowered onto the slips until the indicator is in the ZERO or centre position. The slips are removed and are replaced with you turned bar etc and the Comparator will read off the difference in size between your bar and the pack of slips of known size. With this model you will have to be within + or – 0.002” and is accurate to tenths of a thou.

It is an early form of height gauge, something we used back in the dark ages. :)

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