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In lugnet.technic, Thomas J. Avery writes:
> In lugnet.technic, David Arnon writes:
> > I didn't get the 'Adjustable Stick' part though - why it's needed and how • it's
> > implemented. Can anyone explain that part in more detail?
>
> The "Adjustable Stick" is the long straight "arm" that is connected to the
> end of the bucket, or dipper.
>
> Anyway, the stick can be moved "in-and-out" along its length. The cables
> that Beat is talking about on his website will move the stick in and out,
> thus moving the bucket in and out.
>
> What this accomplishes during digging operations is to push the bucket into
> the soil. If you didn't push the bucket out, it would skip along the ground
> as you raised it up with the bucket cables.
>
> The stripping shovel starts by placing the bucket at the base of a hill or
> mountain side and then raises up the bucket with the cables attahced to the
> pulleys on the bucket. At the same time the bucket is raised, the dipper
> stick is pushed out therefore forcing the bucket teeth to dig into the soil.
>
> An analogy would be comparing a stripping shovel to digging a hole yourself
> with a shovel. You put the spade end on the ground, then push the spade in
> with your foot, and finally raise it up by the handle. The part where you
> push it in with your foot is just like the stripping shovel pushing the
> bucket in by extending the stick when it, well, uh... strips!
>
> These machines were intended to dig through quite a bit of soil and are
> quite powerful. I read about one stripping shovel having a "stick" that was
> made of a steel tube 7 feet in diameter with 3 inch walls.
>
> Hope this helps. If you want to see more stripping shovels and other mining
> equipment, check out http://www.stripmine.org
>
> T. J.
Thanks! Now I see that it's really very simple, I just didn't get the right
idea from the text at Beat's sight.
- David
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Message is in Reply To:
 | | Re: Beat Felber's New MOC
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| (...) The "Adjustable Stick" is the long straight "arm" that is connected to the end of the bucket, or dipper. Anyway, the stick can be moved "in-and-out" along its length. The cables that Beat is talking about on his website will move the stick in (...) (23 years ago, 21-Aug-01, to lugnet.technic, lugnet.modelteam)
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