anbody know what this threaded brass piece was used for?

[Comanche Todd]

it looks like something that might have been used on an old ship? it's a heavy duty solid brass piece with a loop for attaching a line or something?

measures 7.5" inches long

 

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[Tubecity]

An eye bolt can have many uses, but since it is brass you're
possibly right about the marine use.

 

[Comanche Todd]

maybe it was used to secure a ship's port hole cover?

 

[warsawdaddy]

Threads are not standard threads.Threads appear to be for a metal machine application where precise measurement is required.Possibly a valve stem.??

 

[re-tek]

i've seen those kinds of threads of really old (victorian era) machines. maybe your peice is from that era? the little nipple on the end is also kind of indicative of the way they would decorate machine parts back then.

 

[sniffer]

kind of looks like the remains of a clamp, the ball end would fit into a small plate, the (eye) end would be where you inserted a wooden dowel to turn it in cramped spaces

 

[Bluezman]

The thread is an acme thread. It is meant for high torque where something heavy needs to be moved (adjusted) in small increments. The ball on the end looks to have, at one time, held a foot; as on a c-clamp. Still, I don't have a clue as to what it was used for.

Bluezman

P.S.

kind of looks like the remains of a clamp, the ball end would fit into a small plate, the (eye) end would be where you inserted a wooden dowel to turn it in cramped spaces

Yup!

 

[Old Dog]

Well done guys.

I have some of the older clamps that used a dowel or screwdriver to turn them. there is a seat that fits over the ball end of the bolt.

A lot of modern bar clamps use the same set up.

OD

 

[UnEarthed72]

a rotating eye bolt of some sort....i think the ball end went into a socket maybe.

 

[Bigcypresshunter]

The thread is an acme thread. It is meant for high torque where something heavy needs to be moved (adjusted) in small increments. The ball on the end looks to have, at one time, held a foot; as on a c-clamp. Still, I don't have a clue as to what it was used for.

Bluezman

P.S.

kind of looks like the remains of a clamp, the ball end would fit into a small plate, the (eye) end would be where you inserted a wooden dowel to turn it in cramped spaces

Yup!

I agree its an acme thread. http://en.wikipedia.org/wiki/Acme_thread_form
I have this type of thread on a some pullers. I also agree this could be part of a clamp such as the type to tighten an outboard motor to the transom.

 

[Old Dog]

Here is the screw assby on a small bar clamp.
As you can see there is a ball at the end of the screw that holds the foot.

 

[Comanche Todd]

I think maybe it was for clamping an old outboard boat motor? that explains why it's brass, and they could lock the clamps since it has the hole on the end to prevent theft of the motor?

 

[Montana Jim]

I think old dog nailed it...