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step shaft

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  • Shaft construction — concerns the building of vertical openings such as Raises and Shafts. Shafts are vertical openings used for supplying equipment, personnel, and support systems to the horizontal tunnel where the pipeline is installed. They can be temporary or… …   Wikipedia

  • Shaft alignment — is the process to align two or more shafts with each other to within a tolerated margin. It is an absolute requirement for machinery before the machinery is put in service.When a driver like an electric motor or a turbine is coupled to a pump, a… …   Wikipedia

  • Step — Step, n. [AS. st[ae]pe. See {Step}, v. i.] 1. An advance or movement made by one removal of the foot; a pace. [1913 Webster] 2. A rest, or one of a set of rests, for the foot in ascending or descending, as a stair, or a round of a ladder. [1913… …   The Collaborative International Dictionary of English

  • Step grate — Step Step, n. [AS. st[ae]pe. See {Step}, v. i.] 1. An advance or movement made by one removal of the foot; a pace. [1913 Webster] 2. A rest, or one of a set of rests, for the foot in ascending or descending, as a stair, or a round of a ladder.… …   The Collaborative International Dictionary of English

  • step — I. noun Etymology: Middle English, from Old English stæpe; akin to Old High German stapfo step, stampfōn to stamp Date: before 12th century 1. a rest for the foot in ascending or descending: as a. one of a series of structures consisting of a… …   New Collegiate Dictionary

  • step bearing — noun : a bearing that supports the lower end of a vertical shaft …   Useful english dictionary

  • Back step — Step Step, n. [AS. st[ae]pe. See {Step}, v. i.] 1. An advance or movement made by one removal of the foot; a pace. [1913 Webster] 2. A rest, or one of a set of rests, for the foot in ascending or descending, as a stair, or a round of a ladder.… …   The Collaborative International Dictionary of English

  • Half step — Step Step, n. [AS. st[ae]pe. See {Step}, v. i.] 1. An advance or movement made by one removal of the foot; a pace. [1913 Webster] 2. A rest, or one of a set of rests, for the foot in ascending or descending, as a stair, or a round of a ladder.… …   The Collaborative International Dictionary of English

  • the longest journey begins with a single step — Attributed to Lao tzu (c 604 c 531 BC), founder of Taoism. 1904 Sayings of Lao Tzu tr. L. Giles 51 A journey of a thousand miles began with a single step. 1947 L. LEE Twisted Mirror x. 87 Willie looked at him with all the solemnity of an old… …   Proverbs new dictionary

  • To take steps — Step Step, n. [AS. st[ae]pe. See {Step}, v. i.] 1. An advance or movement made by one removal of the foot; a pace. [1913 Webster] 2. A rest, or one of a set of rests, for the foot in ascending or descending, as a stair, or a round of a ladder.… …   The Collaborative International Dictionary of English

  • hand tool — any tool or implement designed for manual operation. * * * Introduction  any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …   Universalium

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