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U-Boot postcard
Old 10-02-2017, 11:05 PM   #1
Curt Steinbach
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Default U-Boot postcard

Hello All:

Here is a nice card I just got. It has a dial on the side which allows a U-Boot to pop up in the waves at the top and then at the bottom.

Thanks
Curt
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File Type: jpg Karte zum drehen - U-boot oben.jpg (116.7 KB, 63 views)
File Type: jpg Karte zum drehen - U-boot unten.jpg (117.0 KB, 63 views)
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Old 10-03-2017, 04:57 AM   #2
Dansson
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That's interesting!
I like myself these old postcards.
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Old 10-03-2017, 09:03 AM   #3
Reichsword
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Cool post card, never saw one like it
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Old 10-03-2017, 11:40 AM   #4
kaiserwilhelm2
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Collector of IMPERIAL/WWI German CYPHERED SHOULDER BOARDS, WWI MEDAL BARS WITH EK2s, German and Austro-Hungarian Imperial TUNICS, HEADGEAR and Belt BUCKLES.
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Old 10-03-2017, 01:28 PM   #5
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That is really cool! I've never seen this postcard before.

What is the mechanism that when the lower right pinwheel is moved it drives the other pinwheel, centered in the upper left?
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Old 10-03-2017, 02:20 PM   #6
Curt Steinbach
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Quote:
Originally Posted by Claudius View Post
That is really cool! I've never seen this postcard before.

What is the mechanism that when the lower right pinwheel is moved it drives the other pinwheel, centered in the upper left?
Thanks all for your comments. I had a feeling you would like it.

Claudius - I'm not really sure how it works. There seem to be 2 wheels within the card which are sort of sandwiched in between 2 cards. Here is a view of the back and you may be able to see the impressions. To be sure how it works I would have to take it apart and that would not be a good idea.

Curt
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Old 10-04-2017, 09:52 AM   #7
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[QUOTE

To be sure how it works I would have to take it apart and that would not be a good idea.

Curt[/QUOTE]


you're right....absolutely do NOT take it apart. I don't want you to think I was suggesting it.

Thanks for the backside view.

I was just curious how they did accomplished it. If they are paper gears, then I bet they are two non-circular gears to get u-boots to rise and fall.

This is just my advice; be sure to store it in a cool dry place and only turn it slowly. The paper gears will be susceptible to wear if they get too damp and under too much stress. Then you will have to take it apart to repair it
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