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derricks/spar booms/coal conveyors

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Posted by tomikawaTT on Thursday, November 12, 2009 12:31 AM

A lot of the necessary fittings for a spar tree (Sheaves, mast rings and such) can probably be found at E-tailers who cater to the nautical model trade.  That's where I'll go if I ever reach the point of having a prototypical high-line loadout on my 762mm gauge logger.  (It will have to be built on a high-level shelf which is only included in the Maybe, someday file.)

Chuck

 

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Posted by g. gage on Wednesday, November 11, 2009 9:24 PM

Google “McGiffert log loader"; the McGiffert loader was popular in the Pine Country of eastern Washington, Oregon and California. A train of log cars were pushed throught the loader then pulled back thourgh the loader and loaded one at a time. Logs were yarded to the cold deck using high wheels pulled by oxen or tractors. 

 

Have fun, Rob

 

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Posted by bopdoc on Wednesday, November 11, 2009 7:22 PM
Thank you, gentlemen, for your input. Great website, Chuck. I am surprised at how interested I have become in all things relating to logging equipment, since deciding on a logging railroad. I love reading about the steam donkeys, the saw mill operations, etc. Nice derrick and conveyor, Brian, but a little too modern. I did intend on building something rustic, as Chuck suggested, but I was hoping to find the hardware (hinges, pivots, angle braces,etc.). I have never fashioned anything out of styrene or brass sheets, but I have seen what can be done with those materials, and I may end up going that way. I did see a neat derrick car kit from New England Model Works, and I might get that, and press it into logging service. Thanks again.
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Posted by Capt Bob Johnson on Wednesday, November 11, 2009 4:01 PM

to find how to rig a boom look at ship models or photos of the time.   it was baSICALLY the same til the 1960's.

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Posted by altterrain on Tuesday, November 10, 2009 10:38 PM

 Larry G scale sells a nice little conveyor. I picked one up for a future coal company.


http://www.larrygscale.com/servlet/the-75/1-fdsh-24-SCALE-G-SCALE/Detail

Piko has a loading crane dock (62077). I adopted the crane for my 7/8's scale freight dock.


 -Brian

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Posted by ttrigg on Tuesday, November 10, 2009 9:15 PM

 Bob:  Like chuck said, there are entirely too many variations on the theme to call anything "standard".  Here is a page with several examples to guide your effort.

 

http://www.mrsc.org/mc/wac/WAC%20296%20%20TITLE/WAC%20296%20-%2024%20%20CHAPTER/WAC%20296%20-%2024%20-24501.htm

Tom Trigg

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Posted by tomikawaTT on Tuesday, November 10, 2009 3:37 PM

The spar tree used to yard and load logs at a woods camp was usually just a standing, de-limbed tree.  The boom was assembled from a couple of suitably slender logs.  I rather doubt that any two of them were identical.  OTOH, the basic design was used on both sides of the Pacific Ocean.

Likewise, the unloading equipment at the mill end could be anything from an A-frame to a crawler crane.  A lot would depend on whether the logs were ponded or dry-stacked.

Since the, "Made from native materials," types were built on the spot from whatever was standing there, I rather doubt that many of them had plans more formal than a quick sketch on a piece of bark.

Chuck

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  • From: Chapel Hill, North Carolina
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derricks/spar booms/coal conveyors
Posted by bopdoc on Tuesday, November 10, 2009 2:21 PM
I'm building a logging road, and wonder if anyone has stumbled across kits (or plans) for the booms, cranes, or derricks that were used at the logging camp, and at the sawmill, to load/unload logs (in the early 1920s). Ozark Miniatures has a nice steam donkey, but no hoist or boom apparatus; and I have seen several of these in HO, but none in G gauge. I would also like to buy/build a small coal conveyor, to move coal from the coal bin into the tender (like a small manual conveyor). Thanks in advance for your help...this has been a very friendly and helpful site so far!

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