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  2. This popular device that makes beach umbrellas better was ...

    www.aol.com/popular-beach-umbrella-anchor...

    North Myrtle Beach couple Mike Haney and his wife Cathy came up with the idea of the Mike’s Spikes umbrella anchor while sitting on the beach on Easter weekend in 2006.

  3. Offshore embedded anchors - Wikipedia

    en.wikipedia.org/wiki/Offshore_embedded_anchors

    A deep-penetrating anchor (DPA) is conceptually similar to a torpedo anchor: it features a dart-shaped, thick-walled, steel cylinder with flukes attached to the upper section of the anchor. A full-scale DPA is approximately 15 metres (49 ft) in length, 1.2 metres (4 ft) in diameter, and weighs on the order of 50–100 tonnes (49–98 long tons ...

  4. Anchor - Wikipedia

    en.wikipedia.org/wiki/Anchor

    The anchors are usually laid in prearranged positions by an anchor tender, and the moored vessel uses its own winches to adjust position and tension. [12] Similar arrangements are used for some types of single buoy moorings, like the catenary anchor leg mooring (CALM) used for loading and unloading liquid cargoes.

  5. Stockless anchor - Wikipedia

    en.wikipedia.org/wiki/Stockless_anchor

    A stockless anchor (or "patent anchor") is a streamlined derivation of the traditional Admiralty anchor used aboard large ships. Patented in England in 1821, [1] it eliminated the stock of the Admiralty, making it both easier to handle and stow. Though it did not hold as well as an Admiralty, the trade-off proved acceptable and the stockless ...

  6. Suction caisson - Wikipedia

    en.wikipedia.org/wiki/Suction_caisson

    Suction caissons (also referred to as suction anchors, suction piles or suction buckets) are a form of fixed platform anchor in the form of an open bottomed tube embedded in the sediment and sealed at the top while in use so that lifting forces generate a pressure differential that holds the caisson down.

  7. History of the anchor - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Anchor

    The ancient Greeks used baskets of stones, large sacks filled with sand, and wooden logs filled with lead, which, according to Apollonius Rhodius and Stephen of Byzantium, were formed of stone; and Athenaeus states that they were sometimes made of wood. Such anchors held the vessel merely by their weight and by their friction along the bottom ...