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BALDT, Inc.
801 W. 6th Street
Chester, PA 19013
phone: 610-447-5200 fax: 610-874-8599

chain@baldt.com
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A History of Anchors from a 1902 Scientific American article
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This interesting article, from a 1902 Scientific American Supplement, chronicles the technical development of anchors between 1800 and 1860


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Curved Arms Over Straight Arms
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The old-fashioned straight arm retained a more or less horizontal direction in the ground, until the leverage derived from the effective length of shank became very much reduced. Again, with straight arms there exists considerable resistance to penetration, because the entire anchor must move longitudinally before the arm can bury itself; but with curved arms the weight alone of shank and upper arm suffice to bury the anchor in soft bottoms without longitudinal displacement. This last consideration, which has some bearing in the case of modern stockless anchors with two blades, was again referred to when dealing with the Martin's type of anchor.


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