What is it? Set 546

[DoN. Nichols]

[ ... ]

The rods could be for propping up long sticks of incense.

Enjoy, DoN.

[Bluey69]

3191 is a tool makers radius gauge 3192 is a telescopic bore gauge for measuring holes in metalwork pieces

[Alexander Thesoso]

I'll speculate that this is a control to adjust room heat for old convection hot-air heating systems. I note the control wire/string (10,11 in the patent drawing) that would go down to set a damper in the duct providing hot air to the room(s). All the open space in the structure suggests that this is a cover for (one of) the hot air input duct(s) in the room(s) being regulated.

[Stormin Mormon]

My pleasure, to help out. So many specialized tools out there, and it's nice to recognize one, now and again.

[Scott Lurndal]

It's possible this is english or french. The fellow wearing the phrygian cap (representing a french revolutionist circa 1800) is being choked by a brit wearing a tri-corner cap. As for its purpose? possibly for holding ink.

[Phil Kangas]

"Alexander Thesoso" <

Perhaps for controlling the coal burning furnace air intake? Close it a bit to cool the fire or open up the intake for more heat. There is no restriction in the flue above the fire in a coal burner.

[Baxter]

Alexander Thesoso wrote in news:lln75f$gp3$ [e-mail]:

Actually, one side says "draft open" and the other side says "crack open"

[Baxter]

"Phil Kangas" wrote in news:llnkt7$hs1$1@dont- email.me:

Makes sense when you consider the labels "draft open" and "crack open" on the dial.

Also:

[Stanley Daniel de Liver]

It's *obviously* a reproduction antikythera device. See? no kytheras around here!

[Rob H.]

Yes, it's a draft regulator for a furnace, more information on it can be found by following the patent link that I posted with the answers for this set:

Thanks everyone!

Rob

[Phil Kangas]

HAH! Got one! Makes my day, ay?

[Stormin Mormon]

Well, I'm zero for the week. Thanks for posting the answers. Glad I was able to help with the cylinder popper.