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OT Amazing salvage project.
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OT Amazing salvage project.
On 15/07/2016 07:20, harry wrote:
https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? |
OT Amazing salvage project.
"GB" wrote in message ...
On 15/07/2016 07:20, harry wrote: https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? Same method was used raising the Kursk (Russian nuclear sub that sank). The steel wire has many bobbins of steel threaded onto it that have carbide fused into the surface. The wire is used like a giant band saw, the seawater acting as an effective coolant. Andrew |
OT Amazing salvage project.
On 15/07/2016 08:41, Andrew Mawson wrote:
"GB" wrote in message ... On 15/07/2016 07:20, harry wrote: https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? Same method was used raising the Kursk (Russian nuclear sub that sank). The steel wire has many bobbins of steel threaded onto it that have carbide fused into the surface. The wire is used like a giant band saw, the seawater acting as an effective coolant. Andrew Thanks. I don't think I'd want to be within a few hundred metres of that arrangement! They have to thread it under the wreck somehow? |
OT Amazing salvage project.
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OT Amazing salvage project.
GB wrote
Andrew Mawson wrote GB wrote harry wrote https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? Same method was used raising the Kursk (Russian nuclear sub that sank). The steel wire has many bobbins of steel threaded onto it that have carbide fused into the surface. The wire is used like a giant band saw, the seawater acting as an effective coolant. Thanks. I don't think I'd want to be within a few hundred metres of that arrangement! No reason why it should fail dramatically. They have to thread it under the wreck somehow? Yeah, that's what a graphic showed. |
OT Amazing salvage project.
On 15/07/2016 10:42, Rod Speed wrote:
GB wrote Andrew Mawson wrote GB wrote harry wrote https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? Same method was used raising the Kursk (Russian nuclear sub that sank). The steel wire has many bobbins of steel threaded onto it that have carbide fused into the surface. The wire is used like a giant band saw, the seawater acting as an effective coolant. Thanks. I don't think I'd want to be within a few hundred metres of that arrangement! No reason why it should fail dramatically. You've got this steel cable with sharp bits on it, whirling around. What could possibly go wrong? :) They have to thread it under the wreck somehow? Yeah, that's what a graphic showed. The graphic didn't show how they did that bit, though. |
OT Amazing salvage project.
"Bob Minchin" wrote in message ... harry wrote: https://www.youtube.com/embed/pva5NwCwwGk Interesting video but why the music????? To make farts like you choke on your coffee. |
OT Amazing salvage project.
"GB" wrote in message ... On 15/07/2016 10:42, Rod Speed wrote: GB wrote Andrew Mawson wrote GB wrote harry wrote https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? Same method was used raising the Kursk (Russian nuclear sub that sank). The steel wire has many bobbins of steel threaded onto it that have carbide fused into the surface. The wire is used like a giant band saw, the seawater acting as an effective coolant. Thanks. I don't think I'd want to be within a few hundred metres of that arrangement! No reason why it should fail dramatically. You've got this steel cable Yes. with sharp bits on it, Nope. whirling around. Nope. What could possibly go wrong? :) Nothing. With the two barge system they use, the worst that can happen is that it stops for a while. They have to thread it under the wreck somehow? Yeah, that's what a graphic showed. The graphic didn't show how they did that bit, though. True. |
OT Amazing salvage project.
On 15/07/2016 10:52, GB wrote:
The graphic didn't show how they did that bit, though. Dig a pit either side, using an item called a "mole", burrow under the wreck (by applying compressed air to it a weight slams back and forward inside the mole causing it to move forward) they send this under the wreck when it emerges in the pit at the other side the cutting wire is attached to the air line, as the air line is pulled back through, the cutting wire is pulled under the wreck. OK dry land and a domestic application but it is the same idea. https://www.youtube.com/watch?v=glpsaCSvZsI |
OT Amazing salvage project.
On 7/15/2016 7:20 AM, harry wrote:
https://www.youtube.com/embed/pva5NwCwwGk Amazing, thanks for posting. |
OT Amazing salvage project.
On Friday, 15 July 2016 13:27:53 UTC+1, soup wrote:
On 15/07/2016 10:52, GB wrote: Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? |
OT Amazing salvage project.
On Fri, 15 Jul 2016 20:04:11 +1000
"Rod Speed" wrote: You've got this steel cable Yes. with sharp bits on it, Nope. So how does it cut? You want to see something wild and cutting? https://www.youtube.com/watch?v=Sp0DqARvjwY -- Davey. |
OT Amazing salvage project.
On Sat, 16 Jul 2016 16:46:44 -0700 (PDT), Weatherlawyer
wrote: On Friday, 15 July 2016 13:27:53 UTC+1, soup wrote: On 15/07/2016 10:52, GB wrote: Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? How else are you going to get the tension on the cutting cable from two vessels that are floating on the surface? Or do you reckon they could use submarines and pull the cable downwards. G.Harman |
OT Amazing salvage project.
Weatherlawyer wrote
soup wrote GB wrote Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? Because that is the only viable way to get enough force on the cable into the wreck. |
OT Amazing salvage project.
Davey wrote
Rod Speed wrote You've got this steel cable Yes. with sharp bits on it, Nope. So how does it cut? Hard bits on the cable. You want to see something wild and cutting? https://www.youtube.com/watch?v=Sp0DqARvjwY Farking hell... |
OT Amazing salvage project.
On Sunday, 17 July 2016 02:10:57 UTC+1, Rod Speed wrote:
Weatherlawyer wrote soup wrote GB wrote Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? Because that is the only viable way to get enough force on the cable into the wreck. You can prove this how? |
OT Amazing salvage project.
On Sunday, 17 July 2016 01:31:31 UTC+1, Davey wrote:
On Fri, 15 Jul 2016 20:04:11 +1000 "Rod Speed" wrote: You've got this steel cable Yes. with sharp bits on it, Nope. So how does it cut? You want to see something wild and cutting? https://www.youtube.com/watch?v=Sp0DqARvjwY What exactly is the reason in 2016 that electricity has to go on pylons through forestry land? It it only considered fit for growing giant vegetables on, it wouldn't hurt to pipe the stuff below ground would it? Or is it a beauty spot where cutting a trench would render the view deplorable even if they did it with a mole? Or is it that the contract for maintenance is better? |
OT Amazing salvage project.
On Sunday, 17 July 2016 01:37:14 UTC+1, wrote:
On Sat, 16 Jul 2016 16:46:44 -0700 (PDT), Weatherlawyer wrote: On Friday, 15 July 2016 13:27:53 UTC+1, soup wrote: On 15/07/2016 10:52, GB wrote: Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? How else are you going to get the tension on the cutting cable from two vessels that are floating on the surface? Or do you reckon they could use submarines and pull the cable downwards. Floats does it? In that case why not get it down there by attaching something heavy alongside? Steel cable for instance? Or shipments of non-sds drills from lidl? You have to give a littl, take a litl Sometimes something on the make from lidl That's the glory of that's the story of little. |
OT Amazing salvage project.
Weatherlawyer wrote
Rod Speed wrote Weatherlawyer wrote soup wrote GB wrote Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? Because that is the only viable way to get enough force on the cable into the wreck. You can prove this how? Its just basic physics. To get anything like the same force on the cable with it above the wreck you'd need at least a pulley etc at each side and would have to attach it to the sea bed somehow. Much easier to do it with the cable under the wreck. |
OT Amazing salvage project.
Weatherlawyer wrote
Davey wrote Rod Speed wrote You've got this steel cable Yes. with sharp bits on it, Nope. So how does it cut? You want to see something wild and cutting? https://www.youtube.com/watch?v=Sp0DqARvjwY What exactly is the reason in 2016 that electricity has to go on pylons through forestry land? Because that is a lot cheaper than the alternatives. It it only considered fit for growing giant vegetables on, it wouldn't hurt to pipe the stuff below ground would it? Much more expensive to do it that way. Or is it a beauty spot where cutting a trench would render the view deplorable even if they did it with a mole? Nope. Or is it that the contract for maintenance is better? Cheaper, yep. |
OT Amazing salvage project.
Weatherlawyer wrote
wrote Weatherlawyer wrote soup wrote GB wrote Dig a pit either side, using an item called a "mole", burrow under the wreck Why start cutting from below? How else are you going to get the tension on the cutting cable from two vessels that are floating on the surface? Or do you reckon they could use submarines and pull the cable downwards. Floats does it? Doesnt produce anything like the force needed. In that case why not get it down there by attaching something heavy alongside? Steel cable for instance? Much easier to mole it under the wreck. |
OT Amazing salvage project.
On 17/07/16 04:59, Weatherlawyer wrote:
What exactly is the reason in 2016 that electricity has to go on pylons through forestry land? It it only considered fit for growing giant vegetables on, it wouldn't hurt to pipe the stuff below ground would it? Or is it a beauty spot where cutting a trench would render the view deplorable even if they did it with a mole? Or is it that the contract for maintenance is better? Perhaps the 10x cost of underground cables has something to do with it? Were you born this stupid, or have you had cranial surgery? -- New Socialism consists essentially in being seen to have your heart in the right place whilst your head is in the clouds and your hand is in someone else's pocket. |
OT Amazing salvage project.
On Sunday, 17 July 2016 05:00:03 UTC+1, Weatherlawyer wrote:
On Sunday, 17 July 2016 01:31:31 UTC+1, Davey wrote: On Fri, 15 Jul 2016 20:04:11 +1000 "Rod Speed" wrote: You've got this steel cable Yes. with sharp bits on it, Nope. So how does it cut? You want to see something wild and cutting? https://www.youtube.com/watch?v=Sp0DqARvjwY What exactly is the reason in 2016 that electricity has to go on pylons through forestry land? It it only considered fit for growing giant vegetables on, it wouldn't hurt to pipe the stuff below ground would it? Or is it a beauty spot where cutting a trench would render the view deplorable even if they did it with a mole? Or is it that the contract for maintenance is better? It costs about four times as much for underground cable. And faults are harder to fix. |
OT Amazing salvage project.
On 17/07/2016 08:03, The Natural Philosopher wrote:
Were you born this stupid, or have you had cranial surgery? I'd have said he's drunk, but he seems to be able to type all right. |
OT Amazing salvage project.
On Fri, 15 Jul 2016 10:33:11 +0100, GB
wrote: snip Thanks. I don't think I'd want to be within a few hundred metres of that arrangement! They used a similar system to cut the exit door (for H&S reasons) in the bottom of the Secret Nuclear Bunker at Kelvedon Hatch. They have to thread it under the wreck somehow? In this case of this 10' thick reinforced concrete bunker wall, they drilled holes through the wall at the top and bottom of where they wanted one side of the cut to be and threaded a coated wire though and back and around a driving wheel of one sort (there may have been an idler pulley on the other side to start with). The wire was then circulated till it cut though (or something like that). The cut finish feels is very smooth (but not flat) and it's interesting to see how accurately arranged the reinforcing rods were and how consistent the concrete mix was. I understand it was also 'poured' in a continuous process so there were no 'joints' that could possibly weaken the structu You can see the 'Exit door' at 9:10 here and the pattern on the walls where the wire 'cutter' ran. [1] https://www.youtube.com/watch?v=vnCXMp7O3xo Cheers, T i m [1] I think he said the Company cutting the hole quoted for some 2 weeks of work and it took more like 8! ;-) |
OT Amazing salvage project.
On 17/07/2016 01:31, Davey wrote:
On Fri, 15 Jul 2016 20:04:11 +1000 "Rod Speed" wrote: You've got this steel cable Yes. with sharp bits on it, Nope. So how does it cut? Ok this is a stone wire saw but I would imagine one for cutting multiple materials is similar. Note no, what anyone reasonable would call, sharp bits. http://www.dexpan.com/diamond-wire-s...-wsg90p37.aspx |
OT Amazing salvage project.
On Sun, 17 Jul 2016 11:44:37 +0100, Chris Hogg wrote:
snip [1] I think he said the Company cutting the hole quoted for some 2 weeks of work and it took more like 8! ;-) Dimension stone is cut in much the same way. Although large diamond saws are now widely used, for the largest pieces they use a long wire. In times past, the wire was passed through a bath of sand that acted as the abrasive, but these days the wires have silicon carbide or diamond-impregnated ferrules along their length. See http://tinyurl.com/hogxeko It's funny they look just like big bench bandsaws. ;-) http://tinyurl.com/6wo55oq and scroll down, Interesting. http://tinyurl.com/zjh4fll Gnarly. ;-) and http://tinyurl.com/zd7q6cy Yeah, the right hand diagram is what I believe they did on the SNB exit. If you were cutting a plane through a rectangular block using a 'loop' driven from one side, I wondered how the cutting wire would cope with the initial 'corners' opposite the driven side of the loop? Like, I wondered if you might initially use an idler pulley (or two) on the undriven side to initially get the wire to 'round' the corners and then the idler could be removed and the loop drawn trough? Cheers, T i m |
OT Amazing salvage project.
On Fri, 15 Jul 2016 10:33:11 +0100, GB
wrote: On 15/07/2016 08:41, Andrew Mawson wrote: "GB" wrote in message ... On 15/07/2016 07:20, harry wrote: https://www.youtube.com/embed/pva5NwCwwGk Any idea how the cutting wires work? Same method was used raising the Kursk (Russian nuclear sub that sank). The steel wire has many bobbins of steel threaded onto it that have carbide fused into the surface. The wire is used like a giant band saw, the seawater acting as an effective coolant. Andrew Thanks. I don't think I'd want to be within a few hundred metres of that arrangement! How about this close? http://dondougan.homestead.com/WireS...eyJunction.jpg I think he has at least got his PPC waistcoat on. ;-) Cheers, T i m |
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