From The Old Barn - Whatzit?

[mxyplqx]

Well my first thot  was sprinkler head but it doesn't pop open. It's a 3/4 X 16 thread. Notice the little Alan head retaining screws. If it gets twisted 90º the head would come off. There is no passage thru it for something to flow thru. The little holes in the head are thru holes from those retaining screws.  It needs a 1-1/8 wrench on the nut and shaft so it must have been for some hefty purpose. If that is so what's with the tiny retaining screws?  Whole thing weighs about 2 lbs.

My conclusions are:
It has to turn 90º to actuate
It has to handle some humongous force when in use
When not in use the forces are minimal.

[mart]

Does the head turn ??  Looks like part of the front stearing gear for an antique tractor !!  Need to go check our old Farmall cubs !!
But I could be totally off base !! 

[cogar]

With a 1-1/8 nut and a “3/4 X 16” thread …. my guess would be that it is/was a “leveling/aligning screw” for a piece of heavy equipment. 

[mart]

Mmmm,, possibly for the hydraulic lift on a tractor ??

[mxyplqx]

Kinda tough to visualize isn’t it?

The head does not turn except if you rotate it 90º it can be removed. The end can be adjusted forth & back (up & down?).

It doesn’t show any hard use like a leveling device might sustain on a tractor. Maybe some other type of machine? Something in a shop?

[mart]

Well,, if part of the hydraulic system it would not show hard use !! The hydraulic lift raises or lowers the equipment up and down !! We have three vintage Farmall cubs !!  Late 40`s  and early 50`s !!

[KC]

Something about it looks familiar...but just can't brain it up...

[mart]

Familiar to me too but from where or what ??

[jacon4]

Looks like a pole jack to me

[mxyplqx]

I polished up the end cap and the pointed support. It looks to me like vertical marks on the end cap suggestive of a centering device. The support rod looks like it has supported multiple end caps of various sizes. Can't imagine what it might centerup. Something in a machine shop? 

[Jlsherf]

I showed this to my husband who was a paint contractor for 30 years.  My first thoughts when I saw it was part of a paint sprayer because I've seen him repair them many times.  He has confirmed this!  He says it is a pump, missing a few parts, to an old paint sprayer.  Hope this helps!

[jacon4]

lol, alrighty then, and there we have it! a pump part!

[Jlsherf]

My husband knows his paint sprayers inside and out!  I trust him on this one for sure.

[mart]

How tall is this thing from top to bottom ??   Ask your hubby what this thing does ??  A sprayer works on pressure no matter the type !!  Can`t see what this could possibly do since there are no hose attachments or holes !!

[mxyplqx]

I have to ask just what role this thing might play in a pump mechanism because there is no possible way anything can flow thru it; nothing attaches to it except that the head evidently can be changed.

The head can be easily removed by rotating it 90º  and looks to me like another head, presumably with a different angle, can be easily substituted. The circumferential grooves in the supporting conical end suggest great force applied when in use. The wrench size (1-1/8") also implies great force.

The entire thing is steel except the head which is non-magnetic and might be beryllium-copper (just a guess). The vertical marks on the head suggest to me great force applied and if it actually is Be-CU that would make sense as that is tough stuff.

I think the whole thing is slipped into a holder of some sort then run up against something that needs to be centered but for what reason I cannot imagine.

Wow! did I write all that?
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Late note last reply while I was typing - the thing is 1-1/4 Dia by 7" long  but can be adjusted to about 10" long. Weighs about 2 lbs.