Author Topic: What is it? Odd Hole Gauge?  (Read 547 times)

woodchucker

Re: What is it? Odd Hole Gauge?
« Reply #15 on: August 10, 2018, 02:20:01 PM »
Look like very nicely home made machinists jacks.

That's what I'm thinking.
Jeff
Clausing 8520   SB Model 9a - power hacksaw, Milwaukee band saw in a table.  Delta Rockwell Surface Grinder (not online yet .. being rebuilt where am I going to stick this)
For pics: https://woodchucker.imgur.com

Uglydog

Re: What is it? Odd Hole Gauge?
« Reply #16 on: August 12, 2018, 08:13:35 PM »
Look like large adjustable end measures to me.
Especially given the domed (crowned) ends.
What are the diameter on the gknurls?
Are they hardened?
If hardened then they are more likely to be some sort of measuring tool.
If not then jacks.
Just my opinion........

Daryl
MN

j.a.f.e.

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Re: What is it? Odd Hole Gauge?
« Reply #17 on: August 13, 2018, 12:43:46 PM »
The knurled sections vary a little but average about 0.859. I really can't tell if they are hardened.

chips and more

Re: What is it? Odd Hole Gauge?
« Reply #18 on: August 13, 2018, 12:55:47 PM »
Are they magnetic? With that color. Maybe a purple anodize? Then maybe aluminum? If so, easily machinable

j.a.f.e.

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Re: What is it? Odd Hole Gauge?
« Reply #19 on: August 13, 2018, 03:21:08 PM »

They are ferrous and chrome plated. The purplish hue is an artifact of the camera.

Terrywerm

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Re: What is it? Odd Hole Gauge?
« Reply #20 on: August 18, 2018, 09:54:54 AM »

They are ferrous and chrome plated. The purplish hue is an artifact of the camera.

At first I thought "No way, those are purple!" but then I looked at the photos again. In the photos with the dial caliper shown, some of them have a purple whatzit as well as a purple dial caliper. But in the photos where the dial caliper is of the correct hue, the whatzit shows as being chrome plated.

I think they were intended to be used as adjustable gauges for measuring internal dimensions, in a fashion similar to telescoping gauges. They would not work well to measure with as getting two sets of fingers into a hole to adjust the gauge out to the hole size would render them useless. The crowned ends lead me to believe that they were not intended for used as jacks, but instead were designed to be set to a specific dimension and then used as go/no go gauges when machining several of the same part.
Terry

Making chips with old machines!

j.a.f.e.

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Re: What is it? Odd Hole Gauge?
« Reply #21 on: August 19, 2018, 12:19:01 AM »
Funny how the comma can change the meaning to the opposite.


At first I thought "No way, those are purple!"

vs

No way those are purple!

They are a bit of an enigma I suppose. Their use is still unknown but so is the origin - are they really well made shop made pieces or commercial? I'm leaning to shop made right now but not for any reason I could defend.

34_40

Re: What is it? Odd Hole Gauge?
« Reply #22 on: August 19, 2018, 07:02:18 AM »
They are a bit of an enigma I suppose. Their use is still unknown but so is the origin .

Then I guess they can work for any of the reasons given!  :)

No matter - they were a great purchase! 8)
Clausing 108, Clausing 8520, Atlas Horizontal, Lincoln stick and mig welders

j.a.f.e.

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Re: What is it? Odd Hole Gauge?
« Reply #23 on: August 19, 2018, 10:45:41 PM »
I think the main use will be holding down the felt drawer liner. Probably use them as a go/no go since I think using them as a gauge would be a little awkward.

chipwelder

Re: What is it? Odd Hole Gauge?
« Reply #24 on: September 05, 2018, 01:44:47 PM »
Could also use them to hold a mill vise parallel when clamping a short part.