double-girder travelling crane

  • 1Crane (machine) — A modern crawler type derrick crane with outriggers. The latticed boom is fitted with a jib. A crane is a type of machine, generally equipped with a hoist, wire ropes or chains, and sheaves, that can be used both to lift and lower material …

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  • 2East Kent Light Railway — The East Kent Light Railway was part of the Colonel Stephens group of cheaply built rural light railways in England. Holman Fred Stephens was engineer from its inception, subsequently becoming director and manager. The line ran from Shepherdswell …

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  • 3Fourth wall — The fourth wall is the imaginary wall at the front of the stage in a proscenium theater, through which the audience sees the action in the world of the play. It was made explicit by Denis Diderot [ The Fourth Wall and the Third Space by John… …

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