Not this again. What’s this tool?

[Jack84]

Recently I picked up a Mercer dial gauge, it’s old but I can’t figure out what it was used for. Pretty sure it ain’t a bore gauge though because the measuring cone and bits would marr up the surface of the bore you’re measuring.
You also need quite some force to actuate it, it has a strong spring in it. Unlike any other dial gauge I know.







Any help identifying it would be appreciated.

 

[Strouty]

Something for hardness? Could the dial indicate something that gets extrapolated? Can we get a picture of the dial? Also I am not doing the obvious search, I find this to be more interesting to try and figure it out by the tool itself.

 

[Jack84]

Something for hardness? Could the dial indicate something that gets extrapolated? Can we get a picture of the dial? Also I am not doing the obvious search, I find this to be more interesting to try and figure it out by the tool itself.

I added a picture.

The dial is just a normal, nothing special.
I did a search already and can’t find anything useful.

 

[Strouty]

Does that scale denote half a millimeter in each direction or is it five millimeters?

 

[Jack84]

Does that scale denote half a millimeter in each direction or is it five millimeters?

It’s five millimeters.

 

[Leviton]

It looks like there are 4 different tips. Are they all different?

 

[leg17]

Possibly a custom application for LINDE......?

 

[Provincial]

It looks like a crankshaft distortion gauge. They are put between the throws of a crankshaft, which is then rotated in the main journals. If the gauge indictates movement, it means that the main journals are not in line, and the crank is having to flex as it rotates.

 

[slowtwitch73]

Provincial got it.

 

[Jack84]

It looks like a crankshaft distortion gauge. They are put between the throws of a crankshaft, which is then rotated in the main journals. If the gauge indictates movement, it means that the main journals are not in line, and the crank is having to flex as it rotates.

Thanks! This one had me baffled. Explains the spring pressure and hardened tips.
Found an image of it, easy when you know what it is.

 

[Jack84]

It looks like there are 4 different tips. Are they all different?

Yes, points are the same only different lengths.

 

[Jack84]

Possibly a custom application for LINDE......?

I thought that too, couldn’t find any stuff they produced though.

 

[Strouty]

Very cool, I like learning things, would never have been my guess.

 

[isb cornbinder]

I found a similar tool on Craigslist. I was told the tool I bought is to measure connecting rod to crank accuracy. More of the same thing, maybe a little different.
The tool I bought is made by Ruston Hornsby for use on the engines they built.
My Ruston is a Canadian Elevator Engine. 640 cubic inches single cylinder Diesel.

 

[isb cornbinder]

another wat-zit tool.

 

[Jack84]

I found a similar tool on Craigslist. I was told the tool I bought is to measure connecting rod to crank accuracy. More of the same thing, maybe a little different.

The tool I bought is made by Ruston Hornsby for use on the engines they built.

My Ruston is a Canadian Elevator Engine. 640 cubic inches single cylinder Diesel.

Nice find!
I love those oddball tools from yesteryear.

 

[Sevenhills1952]

And you know these quality tools were very expensive new. Really nice things!

Sent from my SM-S320VL using Tapatalk

 

[Jack84]

Paid 10,- for this one. Some of you might wanna know.

 

[ttpete]

another wat-zit tool.

Tachometer. It counts revolutions for one minute. Handy for machine tools.

 

[isb cornbinder]

The manufacturer calls it a revolution counter. The odometer counts the turns of a shaft. The clock counts off the time. The clock is wound by the turning shaft. I paid $20cdn.

 

[isb cornbinder]

What is it? I bought it from a Craigslist seller.

 

[Provincial]

What is the name on the holster? Does the end of the tube unscrew? If so, what is inside?

 

[isb cornbinder]

Answer to post #21: There seems to little interest in this tool.
It works and is surprisingly accurate. I have checked it against two other tachometers.

https://workmaster.net/vibra-tak-tachometers/