Posted by Ray Marzolf [98.200.65.42] on Wednesday, October 02, 2013 at 21:24:40 :
In Reply to: Re:thats called an "A" frame posted by mike stone [71.39.211.42] on Wednesday, October 02, 2013 at 19:24:00 :
Derricks. - 1910.181 - OSHA
https://www.osha.gov/.../owadisp.show_document?p_table=STANDARDS...
A "gin pole derrick" is a derrick without a boom. Its guys are so arranged from its top as to permit leaning the mast in any direction.