[TheForge] OT: Spring tile question

[Jerry Frost]

Aw heck Bob I drilled for 20 years even I'd have to pick up something. Eh? 
Actually it's having a near eidetic memory for some things ehough the tree 
helped ease that curse. <grin>

Okay, I'm still looking around for a manual safety hammer video but this is 
the first video that'd play for me. These guys are operating a CME (Central 
Mine Equipment) drill which I operated for most of my sentence. It may be a 
CME 75 like ours but CME 55s are a lot more common and not easily IDed from 
the ground in back. The crew is using the CME automatic hammer rather than a 
safety (manual) hammer and cathead. I don't see a cathead on this rig, it'd 
be on the right behind the auto hammer. 
http://www.youtube.com/watch?v=jo64QIE4hr4

Okay, this one has an animation of an old style safety hammer in use driving 
a split spoon sampler. Heck it may be up to date for where it's from, I 
don't speak read or recognize the language. This isn't a safety hammer as it 
can slip over the top of the rod which is a BAD thing if the rope gets 
tangled on the cathead. regardless this shows the basic mechanics of the 
operation. http://www.youtube.com/watch?v=jo64QIE4hr4

This is manual drilling without the springpole and stirrups but the same 
idea. http://www.youtube.com/watch?v=N3CUnUrMo6s&feature=related

There are a number of other youtube sites you can check out listed here too.

Drilling is a LOT cleaner than excavating, driving a piece of pipe into the 
aquifer or digging a big hole through the intervening impermeable layer. 
Think about it, pipe is relatively small diameter and impermeable steel as 
compared to an excavator bucket size hole filled with gravel. There's NO 
contest as to which is less likely to comtaminate the aquifer.

Anyhow above are a few sites showing drilling, some primitive as a person 
without a quarter million dollars of equipment could cobble up from 
whatever's laying around. The specific operations are mostly split spoon 
sampling rather than driving casing but driving casing is the same it just 
takes a heavier hammer, say 340lbs and is about that much more dangerous.

Hope this helps some. If you have any questions about drilling give me a 
shout, if I don't know the answer I know drillers who probably do.

Jer
----- Original Message ----- 
From: "Bob Smolen" <boka at mwt.net>
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Monday, April 02, 2012 8:28 PM
Subject: Re: [TheForge] OT: Spring tile question


> Jerry,
> It is amazing what you know. I am not planning on doing this at this time. 
> I
> would prefer to excavate land that would allow water to come out at 
> surface
> under its own pressure to avoid contamination issues per Paul,s note.
> Do you know of a video or other reference to this method? I tried looking 
> it
> up on the net a few years ago and I did not find anything except for a
> reference to a windlass  of which I am not familiar. I am just interested 
> in
> the physics.
> Thanks!
>
>