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need spring-energy-storage mechanism

Discussion in 'Electronic Design' started by [email protected], May 29, 2007.

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  1. Don't forget to add enough cats to the load in the "Cat-A-Pult" to
    make sure it lands right side up.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  2. Funicular.



  3. Bill Sornson

    Bill Sornson Guest

    Enjoyably gross?
  4. Revision

    Revision Guest

  5. lightninglad

    lightninglad Guest

    Use a simple counterweight and brake - the weight of the goods going
    down pulls it up and when they're removed, the counterweight falls
    back down. No road needed.
    Any spring based energy storage device is likely to require an
    excessively heavy frame to contain the compressive forces. A flywheel
    (vacuum cage ?) will work but once again weight is involved - although
    with a rim weighted flywheel it might not be as much as the spring
  6. default

    default Guest

    I like catapult or big slingshot.

    Or a pipe, he didn't say what the material is.
  7. MooseFET

    MooseFET Guest

    Tape buttered toast onto the cats back and it will spin up and fly
    much straighter.
  8. me

    me Guest

    You're up against the energy density problem. You don't quantify
    anything here, but you are potentially looking to store a large
    quantity of energy. Flywheels make good energy storage "buffers"
    much like capacitors, but they don't do large energy storage well.
    And they have losses as well. Folks have suggestsed various
    forms of cable driven machines, and that has the advantage that
    you'll use the energy when you generate it. Alternately, you
    can store the energy in a fixed location and resuse it through a
    cable system. And cable systems will have their significant losses
    as well.

    It would seem that what you are after actually is any reasonably
    efficient storage system, and then use it to move ALOT of
    material. That will increase the difference between the mass
    being lifted, and that being lowered. This will allow you to suffer
    fairly significant losses an still accomplish what you are after.
    This system you envision will work because you plan on harvesting
    the potential energy of materials already elevated on the mountian to
    do work. So you'll want to harvest large amounts such that you can
    stand the losses in the conversion and use.

    Off a cliff your easiest way is a 50 lb bucket with a 60 lb
    weight all hanging on a single pulley. Fill bucket, it goes down,
    weight comes up. Empty bucket, weight goes down, bucket comes up.
    You can do something similar with a cable, a car, and a track. Other
    than that, my bet would be on any of the existing regenerative braking
    systems already in existence.
  9. Moka Java

    Moka Java Guest

    While you were siting on you fat pot smoking ass trolling to get other
    people to create energy for you I bought 3 bicycles at Wal-Mart, hired a
    bunch of Mexicans with back packs and scooped your franchise.

    Now go get a job and stop wasting our time and get your fat pimply face
    out'a your mom's refrigerator!

    R "school's out for the summer" TF
  10. Rich Grise

    Rich Grise Guest

    Instead of a counterweight, just use two buckets. Fill the top bucket,
    release the brake, and the bucket descends, raising the other bucket.
    Set the brake, empty the lower bucket while filling the upper bucket,
    and so on.

    But that depends on the characteristics of the road - is it straight?
    Line-of-sight? Can you claim a lane for your cablecars?

    I wonder what ever happened to the OP anyway?


  11. Well, at least till all the butter flys off.

    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  12. Jim Bianchi

    Jim Bianchi Guest

    Yeah, but are the bezels water-proof? :)
  13. me

    me Guest

    Yes, there is more left out of this problem than left in.
    It is also possible (especially on a vertical drop system) to
    put several "buckets" on a rotating system and continually
    fill and empty them as the "go by". Basically a solid mass
    version of a "water wheel".
  14. Rich Grise

    Rich Grise Guest

    I'd pay $100.00 to see somebody tape a piece of buttered toast to the
    back of a cat. ;-)

    I'd have no problem covering the #100 - it'd win $10,000 on "America's
    Stupidest Videos". ;-)

  15. Rich Grise

    Rich Grise Guest

    Well, the OP did say a paved road uphill to the material, but didn't
    say what material, how heavy a bushel is, is the road switchbacks, etc.,
    etc., etc....

  16. default

    default Guest

    You'd lose, on both counts. I'd anaesthetize the cat.
  17. What happens if you put butter on the top side of the cat?

    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: email:

    Please visit my GURU's LAIR web site at
  18. Frank Adam

    Frank Adam Guest

    My Shepheard will pick it up and carry it up and down the mountain.
    Ok, you will have to install a new cat after each trip.. but that's
    probably good to keep the work safety authorities happy.
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