Welcome guest, is this your first visit?
Member
Discoveries
 
Results 1 to 12 of 12
  1. #1
    us
    Come out from under your bed today...... DO SOMETHING!

    Jun 2008
    Yarnell,AZ and Titusville,FL
    Right now: Garrett GTA 500, ACE 250, Fisher Impulse 8, Gold Bug 2, Whites GMT, Vibraprobe 570, and Falcon MD20
    4,337
    1654 times
    Coinshooting, Gold prospecting, and Nuggetshooting
    Honorable Mentions (1)

    MD design dates back 400 years

    Bought two metal detectors on E-Bay today. The design dates back over 400 years. Anyone figure out what I bought? I'll tell you soon, don't jump off that bridge just yet. TTC
    ONE MIND - ANY WEAPON

  2. #2
    us
    Northern California

    Aug 2007
    'South' Texas
    XLT, GMT, 6000D Coinmaster
    2,770
    1457 times
    All Types Of Treasure Hunting
    dowsing rods? magnets? a very old Whites??........63bkpkr
    Out searching w/GMT & friend under my arm

  3. #3
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,842
    56 times
    All Types Of Treasure Hunting
    spanish dip needle?
    no matter where you go,there you are!

  4. #4
    us
    Come out from under your bed today...... DO SOMETHING!

    Jun 2008
    Yarnell,AZ and Titusville,FL
    Right now: Garrett GTA 500, ACE 250, Fisher Impulse 8, Gold Bug 2, Whites GMT, Vibraprobe 570, and Falcon MD20
    4,337
    1654 times
    Coinshooting, Gold prospecting, and Nuggetshooting
    Honorable Mentions (1)
    SHARP, Strick! Get it? Needle... sharp? There were two so I bought both. They work, I presume, by finding the magnetite sand... black sand... many times located with the gold deposits in streams. One was for 40 and the other for 120. The spanish of mexico used them in the southwest. Now, we know they had vast silver and gold holdings back then, so maybe they work. I'll find out. Will take some pics when they get here. Tnx, Strick and 63. TTC
    ONE MIND - ANY WEAPON

  5. #5
    us
    Feb 2012
    Prather CA
    Whites GMT
    2,188
    1803 times
    Finding GOLD
    Hey Terry, can you post a picture.
    "The most inspiring thing about gold, is not the value, but under magnification, the true beauty of each piece. They are truly like snowflakes that never melt." Oakview2 Fly EAGLE Fly......

  6. #6
    LRL fraud debunked

    Dec 2010
    ciudadano del universo, residente de El Paso TX
    BS detector
    1,084
    245 times
    Underground detection
    There are two kinds of things called "Spanish needles".

    Type #1 is two slender metal rods held in the hands and used for dowsing. My grandfather used them and everyone but him noticed that he couldn't locate diddlysquat with them. Your results may differ, but if you can't tell the difference between success and failure you could wind up like my grandfather.

    Type #2 is a primitive geophysical magnetometer comprising a compass suspended in the vertical plane indicating magnetic dip angle. A regular compass can also be used as a geophysical magnetometer but that kind of use requires a long line of sight, impossible in most mines and in many types of aboveground terrain. The dip compass uses gravity (which is always vertical) as the reference, allowing the dip compass to be used (for instance) inside mines.

    --Dave J.

  7. #7
    Charter Member
    us
    TerrySoloman.com

    May 2010
    Congress, AZ - White Plains, NY
    Tesoro Cult Member - Tejon; Sand Shark; Lobo Super Traq; Vaquero; Cibola; Compadre - Minelab GPX 5000
    6,263
    3466 times
    Metal Detecting
    Way cool!
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	m33.jpg 
Views:	71 
Size:	59.4 KB 
ID:	629246   Click image for larger version. 

Name:	m32.jpg 
Views:	48 
Size:	76.3 KB 
ID:	629244  
    Attached Images Attached Images  

  8. #8
    us
    Come out from under your bed today...... DO SOMETHING!

    Jun 2008
    Yarnell,AZ and Titusville,FL
    Right now: Garrett GTA 500, ACE 250, Fisher Impulse 8, Gold Bug 2, Whites GMT, Vibraprobe 570, and Falcon MD20
    4,337
    1654 times
    Coinshooting, Gold prospecting, and Nuggetshooting
    Honorable Mentions (1)
    Oak, when they arrive, I will post pics. Nice pics, Terry. Now, to the Woof! Dave, We can exclude type #1. My needles are of the type#2, as described. I must declare that your deffinition as wrong. Dip needles do not measure gravity but the earth's magnetosphere (magnetic flux) relative to the horizon (level). Regular compasses (map and compass are my PASSION) cannot be tilted on side (maybe you said this as a metaphore) as the jeweled point will then not support the hanging needle. A relatively new form of mag compass DOES dip with the earth's magnetic field, making it a "dip needle" in a sense. It is sold as a GLOBAL compass as it has the height in the compass "chamber" to follow the earth's lines of flux on the most heavily populated portions of the earth WHEN IT IS HELD LEVEL. They, also will not work tilted. Your reference to a "dip compass" would not be a true dip needle as it has no magnetic uses. The following are Wikipedia's results to SPANISH dip Needles. They had no results for the three words Spanish Dip Needle or dip needle (lengthy but very relevent): A magnetometer is a measuring instrument used to measure the strength or direction of magnetic fields
    Magnetometers are distinct from metal detectors, which detect metallic objects by detecting their conductivity. Magnetometers can detect only magnetic (ferrous) metals, but can detect such metals at a much larger depth than a metal detector; magnetometers are capable of detecting large objects, such as cars, at tens of meters

    Dip circles
    are used to measure the angle between the horizon and the Earth's magnetic field (the dip angle). They were used in surveying, mining and prospecting as well as for the demonstration and study of magnetism. Tnx for your response. TTC
    ONE MIND - ANY WEAPON

  9. #9
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,842
    56 times
    All Types Of Treasure Hunting
    Terry ,here's a link to a thread on dip needles http://www.treasurenet.com/forums/do...s-compass.html
    no matter where you go,there you are!

  10. #10
    us
    Come out from under your bed today...... DO SOMETHING!

    Jun 2008
    Yarnell,AZ and Titusville,FL
    Right now: Garrett GTA 500, ACE 250, Fisher Impulse 8, Gold Bug 2, Whites GMT, Vibraprobe 570, and Falcon MD20
    4,337
    1654 times
    Coinshooting, Gold prospecting, and Nuggetshooting
    Honorable Mentions (1)
    Quote Originally Posted by strickman View Post
    Terry ,here's a link to a thread on dip needles http://www.treasurenet.com/forums/do...s-compass.html
    Tnx, Strick. I checked out the thread. The pic OldBillinUT is exactly what I bought times two. Although the one shown is exact, the "cheaper" one looked to have aluminum inside instead of brass. Tnx lots for the reference (I read it back then) UPDATE: Here is the pic I am refering to. EXACTLY like one of the dip needles I bought. TTC


    Click image for larger version. 

Name:	needle1.GIF 
Views:	69 
Size:	43.2 KB 
ID:	629448
    Last edited by TerryC; Apr 24, 2012 at 04:06 AM.
    ONE MIND - ANY WEAPON

  11. #11
    LRL fraud debunked

    Dec 2010
    ciudadano del universo, residente de El Paso TX
    BS detector
    1,084
    245 times
    Underground detection
    The one pictured is suspended in the vertical plane by a swivel on a ring, but most I've seen pictured were suspended on a chain. Both kinds are dip angle magnetometers which refer dip angle to vertical, the vertical axis being established by the suspension mechanism.

    In order to measure dip angle accurately, the dip compass has to be able to rotate about the vertical axis. In principle magnetic forces could orient the plane of the dip compass magnetic north and south, but I suspect that friction is too great to achieve that, and manual rotation to find the greatest dip angle is necessary to get accurate measurements.

    --Dave J.

    EDIT: Dip angle is reported relative to horizontal, although the suspension mechanism itself knows nothing about horizontal, but only vertical. The indicator scale is graduated to indicate 90 degrees when the compass needle is oriented vertically (as at the magnetic north pole), and to indicate 0 degrees with a horizontal needle orientation (as at the magnetic equator).
    Last edited by woof!; Apr 24, 2012 at 04:15 AM. Reason: clarification

  12. #12
    us
    Come out from under your bed today...... DO SOMETHING!

    Jun 2008
    Yarnell,AZ and Titusville,FL
    Right now: Garrett GTA 500, ACE 250, Fisher Impulse 8, Gold Bug 2, Whites GMT, Vibraprobe 570, and Falcon MD20
    4,337
    1654 times
    Coinshooting, Gold prospecting, and Nuggetshooting
    Honorable Mentions (1)
    Quote Originally Posted by woof! View Post
    The one pictured is suspended in the vertical plane by a swivel on a ring, but most I've seen pictured were suspended on a chain. Both kinds are dip angle magnetometers which refer dip angle to vertical, the vertical axis being established by the suspension mechanism.

    In order to measure dip angle accurately, the dip compass has to be able to rotate about the vertical axis. In principle magnetic forces could orient the plane of the dip compass magnetic north and south, but I suspect that friction is too great to achieve that, and manual rotation to find the greatest dip angle is necessary to get accurate measurements.

    --Dave J.

    EDIT: Dip angle is reported relative to horizontal, although the suspension mechanism itself knows nothing about horizontal, but only vertical. The indicator scale is graduated to indicate 90 degrees when the compass needle is oriented vertically (as at the magnetic north pole), and to indicate 0 degrees with a horizontal needle orientation (as at the magnetic equator).
    You nailed it, Woof!(!). The only portion of a previous post that I would like to clarify is your dip compass. It had nothing to do with magnetic flux but DID use gravity as you mentioned. The dip compass you talk of was (is) needed underground to determine the horizontal so that diggins and beam construction would be plumb. Very important! Tnx for your input, Woof! TTC
    ONE MIND - ANY WEAPON

 

 

Sponsors

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Dec. 5th Finds! Old school field dates back to 1850's Hunt 53
    By olekyground in forum Today's Finds!
    Replies: 11
    Last Post: Dec 07, 2009, 01:15 PM
  2. Replies: 0
    Last Post: Jan 22, 2009, 12:13 PM
  3. MD'ing dates back further than you think...
    By DirtNap_GA in forum Comedy Central
    Replies: 8
    Last Post: Jun 18, 2008, 11:03 PM
  4. Replies: 0
    Last Post: Jan 02, 2008, 08:12 PM
  5. Replies: 29
    Last Post: May 06, 2007, 04:28 PM

Search tags for this page

antique dip needle
,
earth magnet treasure hunting
,
fox dipping needle
,

murphys mines ca

,
spainish needles prospecting
,

spanish dip needle

,
spanish dip needle where to buy
,

spanish dipping needle

,
spanishdip needle used to find gold
,

tesoro astec md schematic

Click on a term to search for related topics.
Powered by vBadvanced CMPS v4.1.3