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Forsooth, tis a House Jack

On with the Comedy Suggestions

Building jack

Screw jack has a nice hint of innuendo...

Old school jack...but for what.

If ya click on my name, it links to a picture of one of these bad boys in action, primarily used for lifting houses from their foundations.

That or it's an adjustable medievil loudspeaker, or a mechanical cornucopia...

It's the lower part of a broken drum throne- it's missing the cushion!

It's a screw jack for anything heavy that needs to be lifted

The answers are partially correct when it's called a house jack. It is also known as a railroad jack used to replace derailed cars on the track.

It's a screw jack, used for the lifting of heavies.

However, if it was used in a movie to lift up a Wesley Snipes' ride in a drug-fueled urban environment, it'd be...

Screw Jack City.

(they're usually tougher than this)

It's a jack stand.

I'm almost positive this is an instrument of torture.

That's definitely a turn of the century steampunk megaphone.

this is a screw jack.
lift heavy things with this useful tool,
other parts maybe required.

I think that instead of "What is it?" this feature should be called "Could this be used for torture?"

It's used to raise houses (jack) I have one exactly like it at home.

a bottle opener

This is the WMD they were looking for in Iraq.

it's a Champagne opener

Yep, its a screw Jack and it's range is 1 1/4" to 8"

Victorian era "Fleshlight"?
If you dn't get the reference, do a search, but be warned, it's very NSFW.

It IS a trumpet, no matter how you deny it :-)

That's what I was going to guess, a screw jack. I was thinking more along the lines of an automotive context however.

Everyone has already guessed... I thought it was something to boil water in! Oy.

It's a medieval medical instrument. Used primarily in conjunction with leaches, a barber (the medical practitioners of the medieval) would use this instrument to attempt to dislodge trolls that may have become lodged in the intestines or bowels, thereby causing a significant imbalance in the humors. After treatment, the patient was instructed to eat one live canary whole to scare the dislodged troll, and to sleep on their side on top of a pile of wheat husks for the next two three nights or until they crossed paths with a tall man carrying a caged yellow cat, in which case the treatment was declared a success and the patient would spend the next two weeks suspended upside down in the town square to re-balance their humors.

House jack. Used to lift or level floor joists.

It's called a Bottle Jack.

A house jack. My dad had a couple of them and tended to use them for extra support under cars 'cause the things simply do not fail.

in old timey barber shops its how they lifted the chair the person was sitting in.

It couldn't be something obvious...
its a medieval megaphone.

Its a Chestnut Cracker for those REALLY hard ones to open. You put it inside the cone, put a weight on the top and screw it down. Then BAM! You have very little to eat for a lot of work!

(This might be part of a new diet plan!!!!!!)

's a jack. I have two.

A jack stand. My dad has one just like that.

Heyo, I have like 8 of these. It's for jacking up houses and supporting sagging beams.

Firemans house jack.

Looks like a wine bottle opener to me.

Something to smash olives.

A house jack.

its a skrew jack used for supporting machinery, structural moving, general maintenance and applications construction.

a pic!
http://www.chicagojack.com/pics/mechanical_screw-jack.jpg

Screw jack; and that's my final answer.

It's a house jack, for jacking up a house to move it.

Is it one of those things you put on the counter to ring if you need service?

Rock jack. Seriously. You would find them in a(n old) quarry. Splitting rocks, that's what they're good for.

screw jack / we use them for jack stands for shipping containers and other large van bodies

In many countries and professions they need too many men to screw in a light-bulb. With this device two men can do the job. A wonderful piece of engineering.

Forget the jack. It's a paperweight, to be used inside a bookcase, for extra pressure.
Of course also useable for pressure while glueing things, or leveling the shelves when constructing a bookcase.

Unfortunaly mostly everyone is right. Its an old screw jack. I have 6 of them in the shed. Some of my grandfathers things.

Sacrebleu... Is that a musket silencer?

A blow horn for Shrek.

its a rafter jack to hold up a house and make it level