Can a Jin pole be used to unload a log truck?

[Modat22]

I may have found a contact, a local machinist in McCrady KY does most of the repair for loggers in my area. He gave me a list of names (I took him a box of lathe cutters) of those he would trust and a short list of those that I should only use as a last resort. I also saw a skidder being used down the road from me  8)

About that dumping option, I have a 5 acre field that I hate mowing and let it grow up this year. I wouldn't mind having access to easy firewood and a few logs 

I'll have to have a look around, am I just looking for tree trimmers in my area?

Thanks a bunch, I'm feeling a slight inner peace right now.
Sam

[fencerowphil (Phil L.)]

Sounds like just the friend you needed.
(And you seem to have had the right gift to offer.)

Knowing who to trust and who will be reliable? Priceless!
;)

Phil L.

[Radar67]

I'm doing fine Phil, you still got both saws?

I thought about building a gantry crane to unload log trucks with. Use a hoist to lift the logs.

Stew

[Jim_Rogers]

Just so you'd know it's "gin pole".........

[Modat22]

Just so you'd know it's "gin pole".........

My nephews have been reading Aladin and I've had Jin and gin in my mind and belly.  :D

[fencerowphil (Phil L.)]

Radar:
I thought I had seen evidence that you were snoopin' 'round this place,
Stew.   Don't get sentimental, now, but I sold "your" mill to a well deserving
lawyer friend.  He had some stuff he needed to cut his way out of.
:D

Modat22
Tree trimmers are good, but, as I mentioned, land clearers are a possibility.
Many times they are listed under construction, doing clearing, grading, and
foundation prep.   Needless to say, the trees are in their way! 
In our area, they have real trouble getting loggers to help them out. 
The scale of logging is so big these days!   If the clearing guys have a few
loads of nice pine saw logs, the loggers may be interested.  Everything
else gets burned, hauled, or given away.  They will bring you a dump truck
full at a time.  You get to untangle it, of course.
8) Neat, for you, huh? 8)

For best results, offer to go buck the trees they bring down.  That way you
know that they know exactly what to bring you and you get the chance to
end-seal the logs!
Phil L.

[Radar67]

Phil,

You got me spoiled on that Peterson, cutting wood is not the same on the band. I've been faily busy clearing a small patch of ground and getting ready to build my storage building and log yard. I'll make sure I start a post on that project. Good to hear from you.

Stew

[Gustavo]

what about and terrain  rampe? in accord with   truck higth?

how higth is the cargo?  four to five logs higth?

if the log is too large  put  a point first in the rampe  and after the other

more safety way

[Raphael]

  You could do it with two gin poles and a pair of remote operated winches pretty effectively, no boom to swing so no rotation imparted to the log.  I like Gustavo's earthen ramp concept alot, I have something like it working for me when I load my mill.

[Whitman]

A Jin pole on a crane is a small extenison ,or it can be a device on the side of a tower that is used to place the next section. It is then moved up by cables to that section and the process starts again.  tats my 2    Whitman

[fencerowphil (Phil L.)]

All right, if the ideas are still a flowin'...

Picture this: :P

A double bunk rig, loaded with two batches of nice 16'-6"
White Oak logs for Modat22 pulls into his new log yard.

Step 1.  Said truck pulls in between two braced pairs of columns.
             The columns would probably need to be at least 25' tall.
             [Two to the left and two to the right, X-braced to each
             other and tied off by stand-off cables to the left and
             to the right.  The stand-offs overcome the load.  The X-
             braces fight racking which may occur if the trailer
             scrubs the load as its being pulled forward.]
Step 2.   The back package is lashed/strapped to itself.
Step 3.   A pair of cables are run under the back package of
              logs.  The cables run over heavy sheaves at the top
              of the two right hand columns and down to a pair of
              drive drums.  These two drums are turned by a common
              shaft whch spans the right pair of columns.
Step 4.  A winch lifts this package straight up a foot or two,
              driving the common shaft described above.
Step 5.  Truck moves forward 20-30 ft.
STep 6.  This package of logs is lowered onto your smaller trailer
              and moved out of the way.
Step 7.  Rig backs back for the second package.
Repeat the processes, but this package is simply lowered to the ground,
allowing the fine driver to head back to the woods, etc. After you have
sawn the first trailer load, you can return at your leisure and lift the second
package to be loaded onto your trailer for transfer to the saw.

This would work and would be fast enough for any trucker.  Many mills have
a weigh-in line and a waiting line.   Since Modat22 would have neither, I bet
our little system would be quicker than most trips to the bigger log yards!
This would also be totally safe.  (Famous last words.)  It would work for any
large load which had space allowed under the logs to run your lifting loops.

(This is just one of those crazy ideas I had back when I was worried about
getting logs and never really had to worry more about it.)

Hey, why don't I do this?  8)

Phil L.
P.S.  I realize that my cable description is over-simplified.  In reality the lift cables
would have to have some winch line accessory cables sliding on them.  The
winch line type of loops would actually be the loops under each end of the log pack.
The two lift cables would be above the package.  The loops would run under.

[Modat22]

Let me try to draw that up tomorrow at work, I'm having trouble picturing it.

Thanks

[rbarshaw]

The problem I see is that a pile of logs held square by the sides of the log truck won't want to stay square and will have to be lifted all the way out of it for the truck to be able to leave, won't it?

[fencerowphil (Phil L.)]

I did a sketch, but since it is in a Word Draw file, I
didn't know how to load it in.  My old cheap KeyCad
program isn't compatible either (?)

Anyway, the idea is this:

I you drape a piece of string across a gap, a weight
hung on it will tend to center in the gap.  Similarly,
if you hang a sling on that string, the two ends of
the sling will tend to slide toward the middle when
weight is put in that sling.  In other words the sling
ends will want to slide to the center of the string.
When the ends do that, the load will tend to be pushed
inward by the cinching action of those freely sliding
sling ends. 

In our little plan, that should keep the logs clear of the truck's
side bolsters.  If they don't pull in clear, at least the
force of the weight of the logs should be relieved.

Hey, I better get that DanG sketch to work! I'm diggin' my hole
even deeper! :(   :D

Phil L.

[Raphael]

  I think you'll want a lifting beam and have the cables coming from oposite (left/right) columns to keep the load in line.  In theory the logs will squeeze togehter as the load lifts,  but I wouldn't count on it (Murphy's watching), give your self lots of head room.
 I suspect a few truckers might be asking if this rig was checked by an engineer before they let you lift a load of logs up over their trailer.  You're talking a seriously stout set of poles and stays to lift an entire load at once.

[Left Coast Chris]

Modat.......... for hauling just a few logs on your own.....check out this $400 propane talk hauler with 12v hydraulic spreader bar to lift the logs:





I did spend an additional $100 to replace the hydraulic hoses and $200 for new 3200# tires but...............I just love how you can back over a log, lift, chan w/ binders to cross bars and go down the road!      Look around... you might fine one.

[Modat22]

I saw you're setup in another thread and have been looking around for one myself. They sell for a bit more around here Irvington Gas doesn't want to sell any of them yet. Those are perfect for my uses, I'm building a small arch now but it will never lift what those are capable of.

[Murf]

Phil, I like your idea in principle, but would like it better if it was a larger area covered by the poles and cables, and the setup was used to lift and roll just a couple logs at a time, like a cable car setup, but able to move on two axis instead of just one.

Raphael, I represent that remark....... :D

There's a guy near here that builds log homes, he prebuilds them in his yard, then disassembles and ships them. He has a large tower near his work area, it looks like a surplus radio antennae, that is supported by lots of big guy wires, and about 2/3rds of the way up it has a boom that is also guyed back to the top. It has a rolling winch mounted on the boom and between the length and the swing of the arm, it covers a pretty good sized area.

It's rather permanent though, and certainly not very attractive for someone's backyard.

[Jim_Rogers]

A Jin pole on a crane is a small extension ,or it can be a device on the side of a tower that is used to place the next section. It is then moved up by cables to that section and the process starts again.  tats my 2    Whitman

I thought that the side extension on a gin pole or crane was called a "Jib"? Seems to me that it got it's name from sail boats and such.

From Merriam-Webster Dictionary online:

jib
5 entries found for jib.

Main Entry: 2jib
Function: noun
Etymology: probably by shortening & alteration from gibbet
1 : the projecting arm of a crane
2 : a derrick boom


Just to keep our terms straight....

Jim Rogers
   

[fencerowphil (Phil L.)]

There is no doubt that  a swing-arm type lift on a column
could pick off a log at the time,  but the big rigs won't wait.

No doubt about it, though:  What I was describing would
take some beefy stuff on the columns, etc.  I would imagine
12"by16" I-beams and stand-offs (stays) of 1" cable!  Of
course, the idea of cross beams is good, but more money
on steel, too.

On the other hand, if you plan on lifting less,
going for only a few logs at the time, you would have to
have some slings laid into the load as it was put on the truck.
A layer of logs, lay in a sling; another layer, then lay in a sling. 
Take it too far and you are back to the problem of holding up the
trailer too long for the drop.

If only Murf or Raphael would do a mock-up of this thing,
just so I wouldn't have to wonder whether it would work!
Maybe "Myth Busters" would be interested?  :D

Phil L.

[fencerowphil (Phil L.)]

Finally!  A sketch:









Phil L.

[beenthere]

Modat22
Are ya still hangin in there? Ready to jump into this real soon?   

Interesting stuff.

[Modat22]

I don't think I'll be building anything like this soon. I am going to pay that skidder operator to unload a couple trucks though.

[fencerowphil (Phil L.)]

Sounds like a plan, Modat. 
;)
Big truck, big loader... and they are in and out in 25 minutes.

Oh, well.   DaVinci never saw his helicopter idea done, either.
His problem was a source of power.  My problem?
I can't convince anybody to try this idea out.
:D
Good luck with your machinist connections.
Let us know what happens! I  better go work on a piano!
Phil L.

[Murf]

Oh sure, take da easy way out just when it was gettin' real interestin'........  :

Da noive a some peeepleses.  :D