Posted by Sherman in Idaho [209.33.95.254] on Thursday, January 01, 2015 at 22:06:57 :
In Reply to: I beam and trolley? posted by Chris Case [107.194.27.1] on Thursday, January 01, 2015 at 13:11:58 :
I used to see that kind of rig for setting concrete septic tanks and utility vaults. Nowadays every digging job has an excavator and/or loader that can double as a crane, so a self-loading (or unloading) truck is not so necessary.