Featured Apparatus ?

Anyone know the specific test function of this ? It's circa 1900-25

 

A guess: it's an Acetylene generator. It has an adjustable pressure release, governed by the sliding weight on the horizontal bar; a gauge redlined at what appears to be 1.4 atmospheres; an' a ribbed fitting with stopcock for allowing pressurized gas to be vented an' controlled. The vessel would have been filled with Calcium Carbide granules & water.
Really neat...I like that thing...Thanks!

 

The internet says it's a manometer. Whatever that is.

https://www.worthpoint.com/worthopedia/vintage-max-kohl-chemnitz-brass-steam-1796617863

Debora

 

That is the name of the gauge itself; the OP has a gas-generating appliance fitted with, among other things, a Manometer.

 

Something like this?
https://commons.wikimedia.org/wiki/...n_Kuks_Hospital_in_Kuks,_Trutnov_District.jpg

 

Like...in that both have pressure regulators an' gauges. Yours has a pressure vessel which appears to have a jacket. Sterilization temperatures (pressures) far exceed those used in OP's tool. So like, in a superficial way, but no cigar.

 

Papinian pot (a pressure cooker)
https://www.invaluable.com/auction-lot/papin-denis-1647-1712-papinian-pot-818-c-32947129d2


Named after Denis Papin
https://en.wikipedia.org/wiki/Denis_Papin

 

Yay @Marote !!

 

Papin invented the https://en.wikipedia.org/wiki/Steam_digester

 

I am dubious...bwdik?

 

https://blog.seniorennet.be/keukenweetjes/reageer.php?postID=2266593

Still dubious?