Looking again for help identifying these to tool

[Ryebeach]

Need help again identifying two more items in the attachments below. I think the rusty device is used for lifting bait barrels or some other items to ships. The other device could be for tightening two cables or ropes.

 

[Karl_B]

Not sure on the first one, but the second one is some sort of turnbuckle that basically is as easy to hookup as a single hook, but uses opposing direction hooks to form a mostly secure eyelet.

This looks like the modern equivalent https://murphylift.com/galvanized-turnbuckle-jaw-and-jaw-usa-gtbjj-usa.html

My first instinct on that first one is maybe an early fence stretcher? The earliest ones would've just used a stick through it to the ground and you plant one end of the stick in the ground and pull back on the top of the stick. I could see it working for chainlink. I could be way off, though.

 

[ararat]

Barrel lifter https://collections.sea.museum/en/objects/45244/whaling-barrel-lifter

 

[Karl_B]

I figured I was wrong on that one. Good job, ararat!