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Tool Chalenge! WTF is this?

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Forum topic by AndrewBarron posted 08-16-2017 03:48 PM 1022 views 0 times favorited 19 replies Add to Favorites Watch
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AndrewBarron

2 posts in 40 days


08-16-2017 03:48 PM

Seriously. 11” in diameter. Can’t figure out what this is. HELP!!!


19 replies so far

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Loren

9302 posts in 3404 days


#1 posted 08-16-2017 04:08 PM

Milling table of some sort perhaps. The groove
would catch oil used in cutting.

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AndrewBarron

2 posts in 40 days


#2 posted 08-16-2017 04:11 PM

I don’t think so. Zoom in on the picture and you will see a series of lines running tangential to the centre with gradient marks from 1 to 75 (outside to in). There is 16 marks per ‘ring’. I’m thinking some sort of scribing tool? Or possible a spring gauge?

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pintodeluxe

5353 posts in 2569 days


#3 posted 08-16-2017 04:13 PM

Looks like an old drill press table.

-- Willie, Washington "If You Choose Not To Decide, You Still Have Made a Choice" - Rush

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Aj2

1093 posts in 1554 days


#4 posted 08-16-2017 04:35 PM

Looks like a faceplate to a lathe special made for a top secret operation.

-- Aj

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Fred Hargis

4614 posts in 2249 days


#5 posted 08-16-2017 06:10 PM

I’ve seen milling plates designed to make gears that had such markings. That allowed the operator to rotate the piece exactly the correct distance to cut the next tooth in the gear. I think it may have been called a “rotary table”.

-- Our village hasn't lost it's idiot, he was elected to congress.

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AlaskaGuy

3244 posts in 2065 days


#6 posted 08-16-2017 06:32 PM

F if i know

-- Alaskan's for Global warming!

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Gene Howe

9441 posts in 3184 days


#7 posted 08-16-2017 06:46 PM



F if i know

- AlaskaGuy


Ditto

-- Gene 'The true soldier fights not because he hates what is in front of him, but because he loves what is behind him.' G. K. Chesterton

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MrUnix

5719 posts in 1955 days


#8 posted 08-16-2017 07:03 PM

Looks vaguely like the scroll wheel for a lathe chuck. But the graduations marked along the spiral start at one and work their way along the spiral up to seventy something… so perhaps an index pin runs along the spiral and moves the opposite end a fixed amount that is roughly measured on the spiral… otherwise, I got nothing :(

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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msinc

72 posts in 260 days


#9 posted 08-16-2017 08:46 PM

Removable middle of a router table???? Looks like you might bolt the router to it and drop both down into the cutout in the middle of the table…kind of like my Bosch only it is square. Some older routers had a four bolt pattern on the bottom plate instead of three like the new ones.
When in doubt…throw it like a frisbee. One thing about it…if you don’t figure it out soon you don’t need it. I have gone 55 years without whatever the darn thing is and I cant see needing one if I happen to live another 55!!!!

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mudflap4869

1450 posts in 1215 days


#10 posted 08-16-2017 09:05 PM

A round tuit?

-- Still trying to master kindling making

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TungOil

610 posts in 251 days


#11 posted 08-16-2017 09:07 PM



A round tuit?

- mudflap4869


I thought that at first, but I believe it to be a spiral framitz.

-- The optimist says "the glass is half full". The pessimist says "the glass is half empty". The engineer says "the glass is twice as big as it needs to be"

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DS

2573 posts in 2176 days


#12 posted 08-16-2017 09:20 PM

Looks like a back plate for a four jaw chuck.
At least it resembles the one I have (Mine is only 4” diameter though).

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

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papadan

3574 posts in 3124 days


#13 posted 08-16-2017 11:02 PM

Andrew, I do believe you owe mudflap a cigar, he has the best answer to this thread! ;-)

-- Artificial intelligence is no match for natural stupidity!

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runswithscissors

2501 posts in 1781 days


#14 posted 08-18-2017 04:05 AM

msinc: You say you have never needed this thing in 55 years of woodworking. But are you sure about that? Think back to the times when you didn’t have quite the right or best tool for some task. So you had to improvise or make do with something that was not quite suitable. Well, this is the tool you needed at those times. Could have been as recently as last week.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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MrRon

4308 posts in 2999 days


#15 posted 08-18-2017 07:32 PM

I believe it is a dividing plate used on a rotary table for gear cutting on a milling machine.

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