Rare item with my deuce

[reom34]

Rare item with my deuce(More pics and video)

Hello People.
When I bought my truck 12 years ago I bought tons of parts too.And today when I was looking for some parts I found this rare item.
Any body know what is it?
Thanks
.http://youtu.be/taQewA7zty4

 

[wreckerman893]

DAMIFINO????

 

[SCSG-G4]

Since I can read clearly that it has an "Ordnance Number", it is NOT for the multifuel deuces, because they phased out that nomenclature in the 1950's. The seven digit number was originally a drawing number, and morphed into the Federal Stock Number, and more lately into the National Stock Number (NSN) with the addition of the national code between the SIC (Standard Industrial Classification) and the drawing number. If you can find or look up the SIC for vehicular electrical test equipment, and use '00' for the national code, you would have a possible NSN to use in a Google search.

 

[runk]

Something related to mechanical analog computers ? Maybe to calibrate the gear sets in gun or bomb sights ?

 

[gimpyrobb]

Differential gear-train analyzer, maybe something to test sprags?

 

[TMNT]

Something related to mechanical analog computers ? Maybe to calibrate the gear sets in gun or bomb sights ?

I did some quick reading and it looks like a component of a fire control system used to aim a gun. There were several systems in the '50's including the MK56 Gun Fire Control System and the Mark I Fire Control Computer. I need to do some more research on the subject. It looks really interesting. I started with this site and followed several of the links: http://en.wikipedia.org/wiki/Analog_computer

 

[Danger Ranger]

So it may or may not be rare, since we don't know what it is....but What I'm really stuck on it that you have had it for 12 years and never looked at it until now? holy smokes!

It is a neat item, and I will be watching to see if someone figures it out. Thanks for posting.

 

[TMNT]

OK, this thing has completely derailed my work day! I'm now obsessed with figuring this out. I'm chuggin' coffee and eating pistachio's and reading like a crazy man. I'm convinced that the device is a mechanical integrator, an early form of a computer used to calculate differential equations. It used wheels, gears and various disc's to to set "inputs" for the problem and provided answers by the position readings on the edges of the discs or in some cases, the output was plotted to a round piece of paper in the form of a graph. These were developed and used in the 1950's and used in several fire control systems, although this one seems to be very small for that application. Reom's photos show the gears, a couple of discs and other parts that look similar to images of differential analyzers that I found on the internet. (It must be true, I read it on the internet.)

Maybe this device was used to calculate aiming coordinates for artilllary? Maybe I'm way overthinking it and it is just a fancy looking dial indicator set for measuring runout.

 

[runk]

Still not sure that it really is a part for a fire control computer, but check this site out -
http://www.hnsa.org/doc/index.htm#guns

specifically OP 1140 (operations) and OP 1140a (tools and repair)-
http://www.hnsa.org/doc/op1140/index.htm
http://www.hnsa.org/doc/op1140a/index.htm

I actually had a chance to work a little with an electronic analog computer back in college, and there were a few hallway displays scattered around with mechanical ones.

 

[m16ty]

I know exactly what it is. It's a differential gear train analyzer.

Now what it does, I have no idea.

 

[CARNAC]

75mm skysweeper.

 

[wreckerman893]

Maybe a fire control computer for something like this.

 

[CARNAC]

I told you that's where I parked it at. When am I getting it back? LOL.

 

[wreckerman893]

I told you that's where I parked it at. When am I getting it back? LOL.

There is a tale to be told about that item. But not in public. I wish it would end up in my yard.

 

[Danger Ranger]

Why not public? Quit teasin WM...

 

[bikeman]

All I know is I would hate to be the Private that had to explain to the Sergeant where he 'left' that....

 

[reom34]

Thank you for your help about it.
I let you more pics and a video.
Regrads

 

[FMJ]

I did some quick reading and it looks like a component of a fire control system used to aim a gun. There were several systems in the '50's including the MK56 Gun Fire Control System and the Mark I Fire Control Computer. I need to do some more research on the subject. It looks really interesting. I started with this site and followed several of the links: http://en.wikipedia.org/wiki/Analog_computer

FWIW, the MK56 gun fire control system and the MK1A analog computer were used on cruisers and battleships, the MK1A was the analog computer used to control the 16" guns on the IOWA Class Battleships. We had 2 MK56 GFCS's and 2 MK1A's on the Long Beach CGN-9 used to aim the 5" Guns. all of our TM's started with the abbreviation "OP" Ordnance Publication.

 

[TMNT]

FWIW, the MK56 gun fire control system and the MK1A analog computer were used on cruisers and battleships, the MK1A was the analog computer used to control the 16" guns on the IOWA Class Battleships. We had 2 MK56 GFCS's and 2 MK1A's on the Long Beach CGN-9 used to aim the 5" Guns. all of our TM's started with the abbreviation "OP" Ordnance Publication.

I see that but those systems used "mechanical analog computers" which were also called "differential gear train analyzers." I don't fully understand their use, but I have a general understanding of the concept.

I understand the previously mentioned weapons systems are large and the gear train analyzers used there were large, fixed mounted tables.

Just going off of the term "differential gear train analyzer," I assumed that the device pictured is a portable version for some other weapons system. But, that is only a guess/thought.

What else could it be?

 

[FMJ]

I see that but those systems used "mechanical analog computers" which were also called "differential gear train analyzers." I don't fully understand their use, but I have a general understanding of the concept.

I understand the previously mentioned weapons systems are large and the gear train analyzers used there were large, fixed mounted tables.

Just going off of the term "differential gear train analyzer," I assumed that the device pictured is a portable version for some other weapons system. But, that is only a guess/thought.

What else could it be?

Actually the MK1A was the size of a pool table if I recall correctly, I didn't spend a lot of time in Gun Plot, but I always got yelled at when I played with the operator wheels on the MK1A, or as we called it, the Mark 1 Able.