Gin pole derrick for your skidder

[pdxh20]

My '74 IH S-8 skidder has become even more of a Swiss army knife with the addition of a (removable) stiff-leg gin pole derrick...I'm a painter (oils) but I also used to do marine salvage, manufactured tug and ship deck structures, and a few other things, and I still mess with a little "hobby logging" on my hilly Oregon woodland.

I had a piece of sculpture I had built awhile back but then had to disassemble and store when I built a new painting studio where it stood. The other day despite the smoke from the fires I decided it was time to fab up a lifting rig for the skidder out of a pair of 20' long 4" x .250" square tubes, some 1" plate scraps and an old 1.75" dia. engine bolt (22tons, 400HP, 300RPM direct reversing Atlas Imperial). Really impressed how the crane can lift a load and travel without outriggers, and with how well my meticulous rebuild of the Gearmatic winch paid off with fingertip precision lifting, lowering and holding.




Weird load, but I didn't have far to go. Built this baby dump trailer out of .250
plate, and it clips on the frame or can be exchanged with a flatbed. The flatbed
has casters so it can be wheeled around in the shop with a load before being 
snapped onto the trailer frame for road transport.



Bought the 12" x 12" Doall for scrap at the junkyard...



No 1.75" pins in all of Portland on the shelf I could find, had to turn these up and
weld on washers as heads. Suppliers told me if the computer sees item not sold in
3 years, scrap it.



Wildfire smoke, solo rigging, all in a day's work. Off the trailer, headed for the tower
after making a 3 point turn to back in. Load is about 2000LB.



Ready to drop in place and use the spud wrenches for final alignment and bolt-up.
Sure am glad I bought that $1,500 30' F450 bucket truck for that part. The front
loader bucket adds a little counterweight, which doesn't hurt the program, either.

[Walnut Beast]

How does the contraption work and for what ?

[Firewoodjoe]

Good job! Wish I could still find stuff like that. Everything around her was scrapped when the price was high. Now they all regret it! Not me I keep my junk🤩

[Autocar]

I will second Walnut Beast what the H is that used for ?

[mike_belben]

Nowdays? Sparking conversation! 

;D

[pdxh20]

Sorry, had my hands full for a few days...As it says in the beginning of the post, it's a piece of sculpture made from some crane booms, an anchor, a saw blade and a hunk of wind-throw cedar all as a "little" monument to some of the things I've been messing around with for the last 60 years or so. I've got another one in the front yard made from a half-open, inverted 3/4 yard clamshell bucket attached to a buried steel frame. Looks just like a big flower. Mostly I'm a painter though. 

[Autocar]

Ok pretty cool had me stumped on that one ;D