Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Builds, Repairs, Show Your Machines! => Collections & Pictures => Topic started by: Nick on January 11, 2021, 01:46:45 pm

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Nick on January 13, 2021, 01:14:03 pm

Quote from: Woe is me on January 13, 2021, 12:56:54 pm

The catalog pictures look like your older fill hole.
The newer one looks like a safety valve, some what, Wilescoan.

Safety valve is built into the pressure gauge. The part that looks like a safety valve screws shut, I’ll get a picture...

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Woe is me on January 13, 2021, 12:56:54 pm

The catalog pictures look like your older fill hole.
The newer one looks like a safety valve, some what, Wilescoan.

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Nick on January 11, 2021, 09:38:06 pm

By the way, look at my pictures of the two next to eachother... notice the strange fill plug on my nicer one? the top half unscrews and there is a hole through the bottom half. Any idea what’s up with that?

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Nick on January 11, 2021, 09:35:48 pm

Well... dang-it! My two are also 6.75”, so all I can tell you is that ours are the same... either a 520 or 520/1...

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Nick on January 11, 2021, 09:29:55 pm

Thanks Walter, so your 10.75 is the 520/3, your 8.75 is the 520/2 and lets hope your 6.75 is different than mine, so we can figure out if one of us has the 520/1 and the other has the plain 520...

I checked with Roly Williams, and his appears to be the same as mine, BUT his flywheel is 37mm, where one of mine is 45mm and the other is quite a bit chunkier at 50mm

[attachimg=1]

[attachimg=2]

[attachimg=3]

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Damnfmaschine on January 11, 2021, 08:01:00 pm

The little bloke has the stack on the top of the boiler and the larger ones have the stack on their own base.

Title: Re: Ernst Plank 520 or 520/1 “Hercules”
Post by: Damnfmaschine on January 11, 2021, 07:58:23 pm

Here are the three of them together Nick. They are roughly 6.75, 8.75 and 10.75 inches long the base.
[attachimg=1]

Title: Ernst Plank 520 or 520/1 “Hercules”
Post by: Nick on January 11, 2021, 01:46:45 pm

The closest I can get on the model number for this one is 520 or 520/1 as the catalog does not have the dimensions... If anyone else has this model, can you let me know rough base dimensions so I can figure out if I have the larger or smaller of the two? Thanks!

[attachimg=1]

[attachimg=2]




From the 1902 E.P. Catalog:

[attachimg=3]