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Door-hinges

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JumpingJack
63014.  Fri Mar 31, 2006 8:17 am Reply with quote

Question:

Tell me something quite interesting about door hinges.

Forfeit:

n/a

Answer:

The way the hinges are attached on an ordinary door presents a simple optical illusion. The rule for attaching door hinges is ‘six up, nine down’ ie the upper hinge is attached six inches from the top of the door, and the lower one nine inches from the bottom. If you look at a door, though, the hinges appear to be equally placed.

Notes:

I can't think of anything else interesting about actual door hinges at this time, but I have some stuff about doors in general which I will post up shortly.

PICTURE RESEARCHERS

Q: SPECIALLY SHOT PICTURE OF AN ORDINARY METAL DOORHINGE (BOUGHT FROM A HARDWARE SHOP)

A: SPECIALLY SHOT PICTURE OF PLAIN DOOR, SHOWING HINGES

Technical details:

To follow

Sources:

s: LKS

 
Flash
63057.  Fri Mar 31, 2006 9:46 am Reply with quote

Some material on this subject was posted in a thread called "Doors", including a simple technical drawing: post 60444.

 

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