BF Lake wrote:
"Vince Brannigan" wrote in message
...

Belaying pins actually function as a machine. The pin protudes through


snip good info

Also for flying scenery (moderately useless trivia info): see
http://www.arts.ubc.ca/TheatreDesign...spc/flies1.pdf



Our fly loft at my High school was built in 1896. It is exactly as
described.

Vince