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  1. tmacm

    Pressure drop through nozzle

    What is the 3" pipe connected to? Is it open to atmosphere or to a closed valve. Both would give very different results.
  2. tmacm

    Educated" opinions on climate change - Part 4

    Wow... Think about the order of magnitude between the water vapor produced by all of the nuclear plants and hydrogen cars to all of the oceans, lakes and rivers in the world.
  3. tmacm

    UNI 11001 Edge Prep Question

    Has anyone had any experience with any Italian prints? I'm fixing errors and getting a package of horrible drawings ready for our machine shop, and I've come across a group of drawings with edge prep to UNI 11001. I have an old copy of the standard that doesn't cover what I'm seeing. I...
  4. tmacm

    Pressure differential

    Twoballcane, so you think that if you take a half sphere and place it in a sphere in a cylinder and have atmospheric pressure acting on either side that the half sphere will be pushed out of the cylinder?
  5. tmacm

    lifting tong is it statically indeterminate

    chicopee, the only thing that would do is to not allow the fingers to remain parallel. The bottom pair of elements connected to the above two by the vertical member will just follow the above two and keep the fingers parallel (assuming that the lenghts of the two bottom pairs of links are the...
  6. tmacm

    Am I looking for a "threaded insert"?

    http://www.ezlok.com/Home/index.html
  7. tmacm

    Fatigue life

    What preload is applied to the bolt? How is the load applied? Describe the joint. If the preload is over 2000 pounds, then the bolt will not see any fluctuating load.
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