I was looking at some of my Father's old construction manuals and came across an instruction book for hoisting apparatus construction and operation. I placed a few detail drawings in an album here:
http://s191.photobucket.com/albums/z79/chesterf/blueprints/hoisting%20aparatus/
This is a sample:
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Fi191.photobucket.com%2Falbums%2Fz79%2Fchesterf%2Fblueprints%2Fhoisting%2520aparatus%2F1c1.jpg&hash=f8c6f73fc1aee760d726387a80d7fe360b49e03a)
Thanks Chester for the photos.
As common and as essential as derricks were in the old days, I am amazed more people do not really take the time to do them right.
I have seen things in magazines that absolutely would not work in real life.
Darryl Huffma
darrylhuffman@yahoo.com
Most useful photos!
thanks 8)
Thank you!
Very cool!
-Marty
Very helpful, thanks for posting those!
I found this at Silver Reef Utah.
(https://www.finescalerr.com/smf/proxy.php?request=http%3A%2F%2Ffarm3.static.flickr.com%2F2037%2F2044473321_56694d22a0_b.jpg&hash=d157229ac102eea9f9a9724888f86402f813b54e)
Gordon Birrell
http://www.flickr.com/photos/77318580@N00/