Unknown Decal

[ianatwpf]

The attached image shows a section of the blade of a propeller that fell to the ground in England in the early 20th century. It was incorporated into an item of furniture by my late grandfather. Does the decal represent a known manufacturer?

[Dbahnson]

It might be a Lang Propeller . I believe that there were several versions of the general layout. The linked one is for U.S. version, but Lang originated in Great Britain.

[ianatwpf]

Thanks. I can see that there are many similarities in the layout. I will investigate further.

[Dbahnson]

I'm not at my home at the moment, but when I get there I'll check in Bob Gardner's books, where I think it's likely there are other versions of Lang decals.

[Mtskull]

Most of the images of Lang propellers that I can find have the scroll with writing outside the shield. However, I did find this one and when placed next to the mystery decal, I would say that’s a positive identification.

[Dbahnson]

Most of the images of Lang propellers that I can find have the scroll with writing outside the shield. However, I did find this one and when placed next to the mystery decal, I would say that’s a positive identification.

Nice find!

[JR44]

Here are some on an auxiliary prop.

[Mtskull]

Now, that is extremely interesting to me because I have a very similar auxiliary propeller and I have never seen another one like it until now.
Any chance you could post some more photos showing the prop from the front and back showing the centre boss; also dimensions i.e. diameter, blade chord, boss diameter and boss depth please?

[JR44]

Here you go. The tape with the prop looked accurate when taking the photos but it obviously didn't work!
In the pic looking down on the closed side of the boss there is a 1 stamped, the pic isn't very clear.
I would be intrigued to hear your thoughts on this, I thought it unusual to have the decals on such a workaday prop.

Dia- 305mm
Chord (widest) - 45mm
Boss dia-52mm
Boss depth-41mm
Blade depth-36mm

[Mtskull]

Thank you! The mystery endures; they are not the same. The dimensions of mine are:

Diameter 330mm
Chord 60mm
Hub Diameter 40mm

Additionally (and I should have spotted this before), mine has the opposite ‘thread’ to yours.

Whether or not it was usual for an auxiliary propeller to leave the factory with full decals is a question that I am not qualified to answer; it might be that your example was intended as a demonstration piece but that is pure speculation on my part.

Apologies to all; I appear to have somewhat hijacked this thread…