Gin Pole/A-frame. Actually, you're all wrong!


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Posted by Clint Dixon on Friday, September 05, 2003 at 11:52AM :

In Reply to: Am I to conclude? posted by RDavis on Thursday, September 04, 2003 at 6:12PM :

That got your attention, didn't it? ;^)

Actually, I have been quietly following this colorful disagreement/discussion for some time. I can't contain myself any longer. Now, I must throw my own wood on the fire...Uh, Um, I mean...interject my own opinin on the subject, which, by the way, is backed up by published material, of course:

If we are talking about lifting devices, designed to mount to the front of a Power-Wagon, and meant to enhance the utility of the Braden winch for such purpose, then the vintage sales literature from the companies that produced two of the most commonly found devices for such use describe their products as "Derricks".

The Batavia Metal Products Corp., Batavia, N.Y. described their unit as a "Front T-Type Pole Derrick." The Eagle Mfg. Company, Appleton, WI described their unit as a "Front Mounted Derrick." Both units were basically designed the same with each having one main telescopic pole, the lower point of which, pinned to a pad-eye mounted inboard to the passenger side frame extension, to the side of the winch, and behind the front bumperette. At the very top of the main pole assembly was a "head" consisting of a sheeve and roller fairlead to guide the winch cable. This main pole assembly was braced to the driver side of the truck by a removable shorter pole, "leg", which also pinned to a pad-eye mounted outboard of the driver side frame extension, beside the winch, and behind the front bumperette. This brace did not attach to the main pole assembly at the "head", but rather at the top end of the lower section of the telescopic pole, or at the "junction" of the two parts. Also at the junction of these two poles, a third removable telescopic pole extended to a pad-eye mounted to the crown of the passenger side front fender. A brace, located under the fender, connected this pad-eye to the trucks frame. This third "leg" was not intended to carry any weight, however its intended design was to lock the main pole assembly in a "vertical" position, if desired, and to keep the main pole assembly from falling backwards over the cab of the truck. A cable from the "head" of the main pole assembly, rigged back to a I-beam connected to the frame of the truck, and extending upwards behind the cab, carried the majority of the weight being lifted.

These were but only two of the most well known assemblies used by such companies as power line utilities and phone service providers.

Both units slightly resemble both a "Gin Pole" and an "A-frame" both in design and function, depending upon your perspective.

So there you have it. Pole Derrick! Ha, Ha! ;^)

Clint



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