pump jack

  • 1Pump-jack — A pump jack is type of portable scaffolding system. The scaffold rests on supports attached to 2 or more horizontal posts. The user raises the scaffolding by pumping the foot pedals on the supports. Used in construction.External links*… …

    Wikipedia

  • 2Jack — (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You are John… …

    The Collaborative International Dictionary of English

  • 3Jack afloat — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 4Jack arch — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 5Jack back — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 6Jack block — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 7Jack boots — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 8Jack crosstree — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 9jack crosstree — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

  • 10Jack curlew — Jack Jack (j[a^]k), n. [F. Jacques James, L. Jacobus, Gr. ?, Heb. Ya aq[=o]b Jacob; prop., seizing by the heel; hence, a supplanter. Cf. {Jacobite}, {Jockey}.] [1913 Webster] 1. A familiar nickname of, or substitute for, John. [1913 Webster] You… …

    The Collaborative International Dictionary of English

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