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What Is It?

What Is It? is a place for engineers to test their knowledge (and sense of humor). Each week the CR4 team will post an unidentified picture. We're looking for your best (or funniest) guesses at what it might be (or could be) in the comments below.
Got an image* that you think would stump the community? Submit the photo to the blog admins and we'll post it!

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34 comments

What Is It? for 10/08/12

Posted October 08, 2012 8:37 AM by Mizuti

Can you guess what this is?

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#1

Re: What Is It? for 10/08/12

10/08/2012 9:00 AM

Where is Solar Eagle?

He must be in one of those porta-potties.

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#7
In reply to #1

Re: What Is It? for 10/08/12

10/08/2012 11:35 AM

Thats a chalk line snapper.....er,,,a,,,,got any paper to spare?

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#9
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Re: What Is It? for 10/08/12

10/08/2012 12:46 PM

Depends which way you are leaning. :)

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#2

Re: What Is It? for 10/08/12

10/08/2012 9:03 AM

Could it be a machine for making/copying old keys?

My second guess is a primitive circumcision machine.

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#23
In reply to #2

Re: What Is It? for 10/08/12

10/09/2012 9:03 AM

Ohhh goodness that must hurt like the Dickens if you do it yourself!

Is there a Jewish Doctor in the house?????? LOL

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#24
In reply to #23

Re: What Is It? for 10/08/12

10/09/2012 10:18 AM

"Is there a Jewish Doctor in the house?????? LOL"

Surely you mean a Mohel? http://en.wikipedia.org/wiki/Mohel

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#25
In reply to #24

Re: What Is It? for 10/08/12

10/09/2012 10:40 AM

Possibly in a Temple, but not in a hospital as that requires a doctor's license doesn't it?

I'm not Jewish, and certainly not a doctor of medicine, so I don't no what the individual state laws allow when and how, etc.

I guess my "funny" didn't fly.....

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#26
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Re: What Is It? for 10/08/12

10/09/2012 10:47 AM

"I guess my "funny" didn't fly....."

There's a pill for that. :)

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#27
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Re: What Is It? for 10/08/12

10/09/2012 11:11 AM

Ya all can smoke something too for the same same effect....and it ain't tobacci either! LOL

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#3

Re: What Is It? for 10/08/12

10/08/2012 9:39 AM

Looks like a hand cranked blade sharpener/grinder, missing the stone.

The lever lock keys shown in the image are cast with the lever combination.

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#33
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Re: What Is It? for 10/08/12

10/10/2012 9:13 AM

This is the correct answer everyone

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#34
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Re: What Is It? for 10/08/12

10/10/2012 10:20 AM

Its a ...damn...too late...
Del
(I was going to say it's Kris' mandraulic sqirreldraulic custard pump....)

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#4

Re: What Is It? for 10/08/12

10/08/2012 10:08 AM

That has just got to be a wind-up.

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#5

Re: What Is It? for 10/08/12

10/08/2012 10:30 AM

Bobbin winder. The guide (back and forth) for the twine is upper left in the picture.

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#11
In reply to #5

Re: What Is It? for 10/08/12

10/08/2012 10:48 PM

No

top left of photo i think is a rechargable light , see the wire going into its base ?

based on the high gear ratio i thunk it is possibly a knife sharpener but we really need a photo of the other side to reach an accurate confusement.

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#6

Re: What Is It? for 10/08/12

10/08/2012 11:03 AM

Hand crank for a sailboat sail???

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#8

Re: What Is It? for 10/08/12

10/08/2012 12:45 PM

I think passingtongreen probably has it. But I have seen people in the past using a hand drill to make twisted pair wiring, and, they invariably stuck a mortice lock key in the chuck to attach the wires.

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#21
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Re: What Is It? for 10/08/12

10/09/2012 4:30 AM

I used to just clamp the wires in the chuck.

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#10

Re: What Is It? for 10/08/12

10/08/2012 2:13 PM

And to add - could be our popcorn popper for our fire-pit..makes some good stuff..don't even need the butter...

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#12

Re: What Is It? for 10/08/12

10/08/2012 11:34 PM

I used to use this for grinding mowing machine bar sections. By changing the wheel (missing in photo) it would work as a grinder. Normally it would be clamped to a bench or to fence and you would crank it till you got tired. Worked well and you were not limited to where you had electricity to sharpen tools or sections.

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#17
In reply to #12

Re: What Is It? for 10/08/12

10/09/2012 1:23 AM

i agreed, its grinding mowing machine and good handy thing must have in kitchen.

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#18
In reply to #17

Re: What Is It? for 10/08/12

10/09/2012 1:27 AM

Do you have grass in your kitchen?

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#32
In reply to #18

Re: What Is It? for 10/08/12

10/09/2012 4:33 PM

And is it under a fluorescent light.

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#13

Re: What Is It? for 10/08/12

10/08/2012 11:42 PM

Skeleton key grinder. [?]

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#14

Re: What Is It? for 10/08/12

10/08/2012 11:54 PM

What? Am I the only one that can see the paddle stirrer on the bottom? It for sure is a hand operated drink stirrer.

I have seen similrt devices that were designed to lap valves on a cylender head when done grinding them. I have also seen hand drills that looked like this. But I thought the gears were exposed on both of them.

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#15

Re: What Is It? for 10/08/12

10/09/2012 12:01 AM

Based on, that two wires leave it in the left upper quadrant, it is an old hand cranked charging generator or similar for a Megger. In any case I would not leave my hand as shown, because either of them kicks like a mule !!

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#16

Re: What Is It? for 10/08/12

10/09/2012 12:09 AM

The rest of the ford T is missing!

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#19

Re: What Is It? for 10/08/12

10/09/2012 2:43 AM

Doorman called it in #3: it is a hand-cranked grinder. At bottom, what someone called a paddle stirrer is to tighten the clamp screw (fixed base is on far side; it goes on top of bench, clamp comes from beneath). Top shaft is for grindstone, which is just visible on far side. Slotted bracket should have the tool rest attached (missing). Crank rotates clockwise as seen (convenient for right-handed use), output pinion rotates much faster, and counterclockwise, proper for stone to keep workpiece against the [missing] support. Very similar ones were sometimes used (as others have said) for sickle bar mower sections; often, those were more elaborate, and held a double-conical cross-section wheel to grind both sides of one V-notch at each position.

See http://tinyurl.com/8srjv5v

A typical one for sickle bars is at http://www.etsy.com/listing/110652143/antique-bench-mounted-hand-crank

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#29
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Re: What Is It? for 10/08/12

10/09/2012 1:37 PM

Excellent reply, I agree with all. The keys at the lower right may mean that this grinder has some specialized stones for key making.

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#31
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Re: What Is It? for 10/08/12

10/09/2012 3:22 PM

Thank you! I have more than just theoretical knowledge of these things. At flea markets around here, I can regularly expect to see 2 - 3 for sale; they're still fairly common. Here are two that I have, plus a brand-new sickle-bar grinding stone for reference.

I suspect that the keys are sort of incidental background, unrelated to the grinder. If I were modifying keys, I'd use a file and a vise to have MUCH better control of the work - and that goes double if I have to hold the work with my left hand while cranking with my right! Even with a helper to crank, or using a big enough wheel to let it coast and use the momentum, control would be poor. Big wheels aren't likely prospects for doing fine work on keys, either.

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#20

Re: What Is It? for 10/08/12

10/09/2012 3:17 AM

It looks very much like a hand grinder my father had.

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#22
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Re: What Is It? for 10/08/12

10/09/2012 4:41 AM

why would you grind your hand ?

corns ?

callouses ?

;)

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#28

Re: What Is It? for 10/08/12

10/09/2012 12:47 PM

I have never seen one before, this is the famous Hand Crank Thing-a-Ma-jig!

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#30

Re: What Is It? for 10/08/12

10/09/2012 3:09 PM

Looks like one of these,, only older...

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