How Two Propeller Halfs Become One

[Mihelich]

I came across this statement in the material section of the website.

"American Propeller Company (Paragon) devised a method to balance half-blades individually, then join these at the hub".

This assembly system has sparked my interest.
Does anyone have any pictures or documents showing this type of construction? I am curious how they held the two haves together in the completed assembly.

Thanks,
Tom

[Dave]

Tom,

What Paragon did was match laminations of wood, then glue them together to even out the variations. I think I have the brochure that describes it and I'll try to post that here.

[Dave]

Attached is a photo of the Paragon 3 blade hub scheme. Of course the 2 blade was much simpler.

And here's the blurb from a 1920 Paragon brochure about their wood matching process: