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Magnet Fishing for Artifacts?

Discussion in 'Wreck Diving' started by CharlieDontDive, Jul 2, 2020.

  1. Ukmc

    Ukmc ScubaBoard Sponsor ScubaBoard Sponsor

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    One must check local laws. South Carolina specifically states that the use of magnets, or any type of rakes or screens for that matter, is not allowed to recover artifacts.
     
  2. lowviz

    lowviz Solo Diver ScubaBoard Supporter

    # of Dives: 200 - 499
    Location: Northern Delaware or the New Jersey Turnpike
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    @lowwall: Yes, thank you for the correction!

    Lovely pieces, both of them...
     
    lowwall likes this.
  3. rjack321

    rjack321 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Port Orchard, WA
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    Using metal detectors (including magnets) on state land including tidelands in Washington requires a permit.
     
  4. mac64

    mac64 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 5,000 - ∞
    Location: Ireland
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    1810B140-87F3-45CB-9D7F-1FF9339A8549.jpeg
    Brilliant finally the mystery is half solved, I wonder was it to be used in case she needed a tow, it was very close to her main gun in the photo above.
     
    Dark Wolf and lowviz like this.
  5. lowwall

    lowwall Manta Ray

    # of Dives: 200 - 499
    Location: Chicago
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    It was a USCG requirement even back then that ocean going vessels of this size carry multiple line propelling devices. The purpose was for setting up tows or transferring people or supplies when conditions favored this method over boat or direct transfer.

    The Lyle gun was one of the listed acceptable types.

    I did a Google books search and found that shipboard use of Lyle guns in this period (and all the way until the early 1970s) was common enough that when it was mentioned, the authors felt no need to explain what it was.

    Remember that the Folia had previously served as a transatlantic liner, so would have both the need to carry such a device and the opportunity to obtain this particular device during one of her runs to US waters.
     
  6. BlueTrin

    BlueTrin ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 100 - 199
    Location: London
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    How did you lift a gun and carried it out of curiosity ?

    That looks seriously heavy ...
     
  7. PBcatfish

    PBcatfish Regular of the Pub

    # of Dives: 500 - 999
    Location: Florida
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    It's been quite a while since I was involved in making charges for Lyle guns, but as I remember, it was a charge of a special purpose mixture of black powder that was ignited by a .32 cal blank. The cartridge shown here is new to me. Perhaps, did different versions exist? Perhaps this one is newer than what I remember?
     
  8. lowwall

    lowwall Manta Ray

    # of Dives: 200 - 499
    Location: Chicago
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    Lyle guns were made by a variety of manufacturers and the firing mechanism was not standardized until the 1930s, when the USCG started requiring activation by .32 S&W Short blanks on the guns they ordered. Earlier models used friction primers, percussion caps, or various .22, .32 or .38 blanks.

    The charge was anywhere from 1 to 8 ounces of black powder. Although Dupont and others marketed "Life-Saving Powder", it was actually standard Fg grade black powder.
     
    rjack321 likes this.
  9. mac64

    mac64 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 5,000 - ∞
    Location: Ireland
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    The bronze Lyle gun is light and we simple tied a rope on it and hauled it aboard
     
    BlueTrin likes this.

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