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Hose grinder

 a hose that cuts through walls
  (+20, -1)(+20, -1)
(+20, -1) 		  [vote for,
against]

My idea is to have a hose that cuts through walls so fire fighters can put out the fire more effectively. Spiked rotating nozzels drill holes into the wall without allowing oxegen in. Thus spraying foam/water that would put out the fire.
—gizmo, Apr 06 2002

One possible Hose Grinder configuration http://bz.pair.com/fun/hose_grinder.html
Updated, adding hydraulics to power the cutting head. [gizmo] I hope it's okay that I added this drawing. [bristolz, Apr 07 2002, last modified Oct 21 2004]

Hole Hose http://www.bbc.co.u...3extinguisher.shtml
Hose that drills through walls [oneoffdave, Oct 04 2004, last modified Oct 21 2004]

[link]






       Water blasting is baked. Adding grit to it allows it to cut faster, but it would still need some sort of mechanical assistance to get through some of the stronger building materials.   

       Firemen currently use chainsaws and gas-powered rotary saws to go through roller doors and metal sheeting. You're on the right track though.
—UnaBubba, Apr 06 2002
   

       If it is able to plug the space while at the same time cutting - it prevents the fire from getting more oxygen.
—thumbwax, Apr 06 2002
   

       thanks bris, great drawing, I knew it would have been hard explain without a picture.
—gizmo, Apr 07 2002
   

       .... and the water pressure can be made to provide the grinding power, so that the firefighters no longer have to carry gas tanks(!) into a fire...
—Jeremi, Apr 07 2002
   

       Many thanks again bris, it's brilliant. Thank you.
—gizmo, Apr 07 2002
   

       [bristolz] I love the addition of 'hydraulic lines' to the water hose!
—phoenix, Apr 07 2002
   

       Dayuuuuuum Bris - Nice!
—thumbwax, Apr 07 2002
   

       It's [gizmo]'s idea!
—bristolz, Apr 07 2002
   

       I was imagining a nylon stocking submarine sandwich.   

       Without allowing oxygen in? Not sure that's possible. The wall material itself, as it is being drilled, will crack and crumble around the cut edge. Even with the 'seal', it would be very difficult.   

       And also, the fire fighter would not be able to see where to direct the water flow.   

       Spectacular illustration!
—waugsqueke, Apr 08 2002
   

       The idea of being able to remotely quench a fire by jetting it out THROUGH the wall would be an attraction, if the water spray was not extreme even occupants of the room might survive.. so long as it was not a magnesium strip packing plant!
—johnbullas, Apr 08 2002
   

       First read this as horse grinder; yuck!
—Zircon, Jan 30 2003
   

       A device that does this is currently being tested by Lancashire Fire & Rescue Service [link]
—oneoffdave, Jan 30 2003
   
      
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