On 19/02/2017 17:17, Uncle Monster wrote:
On Sunday, February 19, 2017 at 10:40:34 AM UTC-6, James Wilkinson Sword wrote:
On Sun, 19 Feb 2017 16:32:59 -0000, Uncle Monster wrote:

On Sunday, February 19, 2017 at 7:53:30 AM UTC-6, James Wilkinson Sword wrote:
On Sun, 19 Feb 2017 08:20:41 -0000, Bod wrote:

Our letterboxes on our houses have a flap that shuts automatically as
soon as the letters go through the flap.

A spring is far too complicated a device for an American to understand. Stop making fun of them!
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Years ago, I had a brass mail slot with a flap installed in the door of my business. It used a very complicated system to close the flap that my Limey cousins have yet to comprehend. It's called gravity and it worked every time.
ヽ(€¢€¿€¢)ノ

Too many have strong springs on the inner flap, which means you try to push the letter through and it pushes it back out! The outside flap should be sprung to prevent the wind flapping it, the inside should be gravity controlled.
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I liked it when the wind caused the brass flap to flap. It was my storm alarm which was my signal to check my vehicle windows and look skyward to see just how ugly the weather was about to get. I've seen the wind from a thunderstorm take down a brick wall. Around here, there are sometimes straight line winds that are more destructive than a tornado. ヽ(ヅ)ノ

[8~{} Uncle Brass Monster

Didn't the rain get in the flap when the wind drives the rain into the
flapping flap?

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