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Knock-Wood20/01/2021 19:23:22
5 forum posts
4 photos

Hopefully somebody can tell me something about this?

Oldiron20/01/2021 19:45:05
726 forum posts
23 photos

Looks like a Mercer 108/401 comparator stand. Used in a test lab or toolroom. It is a very heavy piece of kit and very stable.  Could also be a CE Johansen item as they were almost identical.

regards

Edited By Oldiron on 20/01/2021 19:47:23

Kiwi Bloke21/01/2021 08:31:10
508 forum posts
1 photos

I have one, but don't remember noticing a maker's name. To elaborate Oldiron's post, if uncertainty persists, the small dia. rod, lying adjacent to the corner of the base casting, fits into the clamp already fitted on the vertical rod. A dial indicator is clamped onto the small-dia. rod. It's a very high quality, and rigid, stand, for use primarily on a surface plate. Horribly expensive new!

Bo'sun21/01/2021 09:37:46
358 forum posts

Another vote for a comparator stand. For inspection room use rather than production. Production comparators would have the reference surface incorporated into the instrument. The name Sigma seems to ring a bell.

Dr_GMJN21/01/2021 17:12:21
avatar
900 forum posts

The arm and fine adjust clamp look very similar to my Eclipse stand. Perhaps they were a standard item?








It's rock solid, but a bit bulky and heavy to use, particularly the magnet button which takes some effort to push in.

Howard Lewis21/01/2021 18:32:15
4448 forum posts
8 photos

The Eclipse stand has, from memory, a 5/16 BSF tapping for the standard pillar. The heavier one shown is a later addition. A good upgrade.

But the OP's equipment looks to be of industrial quality, and good solid kit to have. It may well have from a Standards Room or a Toolroom. so is likely to have been misused.

A good acquisition.

Howard

peak421/01/2021 18:41:13
avatar
1357 forum posts
151 photos

If you look up something like "cast iron indicator stand" in your favourite search engine, you will come across images such as this one
https://innovative-measurement-technology.co.uk/products/hand-workshop-tools/control-rulers-squares-and-stands/stands/column-dial-indicator-holders/art-250-dial-indicator-holder-with-moveable-column/

Which should give some idea of its use.
I have something similar, again with no makers marks at all.
Mine has a nice black crackle paint finish; I assume mine is US/UK as the column is 13/16" and the cross arm is 1/2", rather than either being metric.
The other obvious difference in mine is the top slot; yours and the one I linked to are T slots, whereas mine is dovetailed.

Mine came without the cross bar and accessories, so the plan is for a length of ½" silver steel and a holder for the end to take my various clocks.

Bill

Dr_GMJN21/01/2021 19:55:21
avatar
900 forum posts
Posted by Howard Lewis on 21/01/2021 18:32:15:

The Eclipse stand has, from memory, a 5/16 BSF tapping for the standard pillar. The heavier one shown is a later addition. A good upgrade.

But the OP's equipment looks to be of industrial quality, and good solid kit to have. It may well have from a Standards Room or a Toolroom. so is likely to have been misused.

A good acquisition.

Howard

When you say "Industrial Quality" - mine's got "Turbine Dept Sept 69" stamped on it, so I think it was used in a factory somewhere. Once clamped, it's going nowhere...

I'd think if the O/P's stand was used as you suggest, it would have been looked after far better than a shop floor item.

Nicholas Farr21/01/2021 20:38:43
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2624 forum posts
1225 photos

Hi, here's a photo of the Mercer 108/421 that I have. Looks a little different than the O/P's one.

mercer 108-421.jpg

Regards Nick.

Edited By Nicholas Farr on 21/01/2021 20:40:35

John Reese21/01/2021 22:32:23
890 forum posts

I have one similar to the first one shown. It was made by Brown & Sharpe. It does not have the fine adjustment screw. Most of the time it just sits quietly in its box.

peak422/01/2021 22:37:29
avatar
1357 forum posts
151 photos

Not the best of photos, I forgot to do it before it went dark.
Anyone know what make mine is please, just out of curiosity really.
Almost certainly UK/US as the sizes are imperial, ½" hole for the cross bar, so this shock absorber spindle is just too loose. 13/16" for the column.

indicator block p1220357_dxo.jpg

The base is 6"x 2¾" x 1 ¾"

Thanks

Bill

Edited By peak4 on 22/01/2021 22:38:55

old mart23/01/2021 15:14:00
2686 forum posts
176 photos

We have one of the base castings at the museum, I had an idea what it was, but have never seen the whole thing. Our one has a tee slot rather than a vee. To make ours more useful, I milled the rads at the base square so it could be clamped down to the mill bed. I also drilled three holes through the slot to use bolts to hold it down. We already have some tee nuts which fit, I cannot remember what size they are.

Oldiron23/01/2021 16:24:54
726 forum posts
23 photos
Posted by old mart on 23/01/2021 15:14:00:

We have one of the base castings at the museum, I had an idea what it was, but have never seen the whole thing. Our one has a tee slot rather than a vee. To make ours more useful, I milled the rads at the base square so it could be clamped down to the mill bed. I also drilled three holes through the slot to use bolts to hold it down. We already have some tee nuts which fit, I cannot remember what size they are.

Possibly a Starrett 665JZ indicator stand.

regards

Oldiron23/01/2021 16:31:00
726 forum posts
23 photos
Posted by Nicholas Farr on 21/01/2021 20:38:43:

Hi, here's a photo of the Mercer 108/421 that I have. Looks a little different than the O/P's one.

mercer 108-421.jpg

Regards Nick.

Edited By Nicholas Farr on 21/01/2021 20:40:35

Nice box Nicholas. Have you got the platen that goes with the base for comparison measurements? I have one some where but not sure where at the minute.

regards

Nicholas Farr23/01/2021 16:42:37
avatar
2624 forum posts
1225 photos

Hi Oldiron, all you see is all I have, it was take it or it goes it the skip, where I used to works years ago.

Regards Nick.

Oldiron23/01/2021 17:04:39
726 forum posts
23 photos
Posted by Nicholas Farr on 23/01/2021 16:42:37:

Hi Oldiron, all you see is all I have, it was take it or it goes it the skip, where I used to works years ago.

Regards Nick.

Nice to have though as is. I only use mine on my surface plate as an indicator stand as it is nice and heavy

regards

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