BS 2853 Specification for the Design and Testing of Steel Overhead Runway Beams 1957

This standard specifies the minimum requirements for the design and testing of fixed overhead runway beams made from rolled sections of steel complying with BS 4360. It applies to the runway beams and their components only; it does not apply to supporting structures, to travelling trolleys, and lifting appliances operating on the beams, or to crane gantries or rails.

Paragraph 4(g): All bolts in tension, other than high strength friction grip bolts, shall be fitted with effective locking devices.

Paragraph 7: Effective end stops shall be provided on the runway to prevent the trolley either falling from the beams or fouling the structure of the building in which the runway is installed. All end stops shall not operate on the flange of the trolley wheels.

Paragraph 9: The safe working load, identification number and any limiting conditions shall be plainly and permanently marked on the runway so as to be clearly visible to the operator.

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