The inner and outer sleeves would rotate to change the size of the holes on the sides. The bolt on the end picture makes feel I’m wrong.The side photos remind me of an adjustable burner orifice for a gas-operated appliance; camp stove?
I believe you are on the right track as being a device to control flow of a material or liquid and the threaded end piece was the control to adjust or regulate the flow. Perhaps I'll eventually come across an image of the actual device. Thanks for your thoughts.The inner and outer sleeves would rotate to change the size of the holes on the sides. The bolt on the end picture makes feel I’m wrong.
I have to admit there is a lot of similarity there. Thanks village nut.Reminds me of part of a vintage yard water sprinkler....they had lots of cool designs to them back then. View attachment 2074330