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Thread: Help with a small pan American pulse jig build

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  1. #16

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    I thought I would try to explain in a different way.
    So you should cut a rubber washer the same diameter as the large disc on your carriage bolt.
    The part that is under the head of the carriage bolt need to be thinner like a washer.
    Next make a spacer about 3\4" long with the ID sized for the bolt and the OD sized to fit the inside of the spring.

    The parts now are bolt, small disc, rubber washer, large disc, spacer and then a nut.
    I think that we also used rubber cement to glue the rubber washer to the large disk, it may not be necessary and may depend on
    how stiff your rubber washer is.

  2. #17

    Feb 2018
    24
    1 times
    All Types Of Treasure Hunting
    Got it, I am going to get the parts and give it a try! I really appreciate your help.

  3. #18

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    remove indentation in red and make the green part smaller and all one level, correct?

    Yes but now refer to your post #15 and were you drew a red line and say water outlet is were we had a part with the taper machined out of aluminum. The taper was just machined on the inside only and the outside was straight, unlike the drawing.

  4. #19

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    Avery crude drawing of the water outlet part. The green line represents the surface of your green line in post #13.Click image for larger version. 

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  5. #20

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    Diaphragm parts.
    grey. nuts and bolts
    black. washers
    red. rubber washer
    green. diaphragm
    blue. spacer for springClick image for larger version. 

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  6. #21

    Feb 2018
    24
    1 times
    All Types Of Treasure Hunting
    You sir are the best! Thank you so much! I am awaiting the supplies!

  7. #22

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    A few things I am starting to recall about the jig. One is it was found that the diaphragm worked better when it was below the water level
    unlike the pic in post 15 ours was constructed similar to my drawing here. Click image for larger version. 

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    Another thing that i recall is using a pressure regulator, it has garden hose threads and I think can be bought at a hardware store. I will see if I can get more info on that later the jig will work without it.
    I am curious where you got your plans for the jig that you have made so far?

  8. #23

    Feb 2018
    24
    1 times
    All Types Of Treasure Hunting
    Honestly thank you so much! this input is invaluable for me!!

  9. #24

    Feb 2018
    24
    1 times
    All Types Of Treasure Hunting
    I got the plans from the US patent online and I just tried to replicate it.

  10. #25

    Feb 2018
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    1 times
    All Types Of Treasure Hunting
    Do you mean that the diaphragm worked better below the top level of the pulse valve? Or the water level with which part?

  11. #26

    Feb 2018
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    1 times
    All Types Of Treasure Hunting
    I think I did it right this time! I used epoxy as well on the inside and outside to the water outlet so it would be smooth and sure no leaks.


    I hope this is okay


    Click image for larger version. 

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  12. #27

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    Quote Originally Posted by jabby View Post
    I got the plans from the US patent online and I just tried to replicate it.
    Do you have a link? I am just curious who made the patent.

  13. #28

    Dec 2015
    81
    82 times
    All Types Of Treasure Hunting
    Quote Originally Posted by jabby View Post
    Do you mean that the diaphragm worked better below the top level of the pulse valve? Or the water level with which part?
    The pulse valve is below the overall water level like what is shown in pic on post #22. The blue line being the water level.

  14. #29

    Feb 2018
    24
    1 times
    All Types Of Treasure Hunting
    Here is a few but I cannot find the exact one I found when I first started this project:


    Patente US4849097 - Cam actuated mineral jig - Google Patentes

    https://www.google.com/patents/US5361910

  15. #30

    Feb 2018
    24
    1 times
    All Types Of Treasure Hunting
    yes got it. The new design was better correct? I just need to make the shaft with the washers and awaiting the rubber.

 

 
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