From: muratlanne@gmail.com   
      
   "Richard Smith"  wrote in message news:m1zfrky2wz.fsf@void.com...   
      
   Patent no way - I spotted that cordless tool battery powers now enable   
   drilling sockets for feathers&wedge.  Everything familiar already - it's   
   just reaching a "cross-over point" where becomes economic.   
      
   --------------------------------------   
   I asked because my hoisting tripod top connection is standard hardware store   
   material arranged in a way I haven't found elsewhere, that leaves the legs   
   free to move in all directions when unloaded but locks up rigid under load.   
   I think the upper leg attachment counts nearly as pins equally loaded at   
   both ends but due to the odd geometry the calculation is beyond me. The foot   
   end is almost a ball joint, again using standard material.   
      
   Recently I bought a 2000Kg crane scale that will let me proof test them   
   above the 1000Kg (2204 Lbs) that they support with no sign of stress.   
   It cost $90 and matches the 1000Kg scale within <5 Lbs at 1500 Lbs, so far.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)