Big Ben: its engineering past and future
Institution of Mechanical Engineers, 1981 - Antiques & Collectibles - 59 pages
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AC/DC Airy Airy's Ampere turns Amps Appendix bevel gear bevel wheel Big Ben bolts broken cast iron Charles Barry CL0CK clamp clock frame clock mechanism clock movement clock room clock tower clockmaker Commissioners components construction crack length damage Dent's dials diameter drive shaft driving weight drum E B Denison E J Dent Edward John Dent estimated examined failure fatigue crack growth fitted fly-shaft fly-tube fracture surface Gamma radiography gear wheel going train gravity escapement Grimthorpe Harwell Horological Journal hour striking mechanism hour striking train ITEM locking lever longitudinal crack Magnetic particle inspection makers manufacture minutes mounted National Physical Laboratory operation Palace of Westminster Paraffin-and-chalk developer technique pendulum pinion propagation quarter chiming mechanism quarter chiming train rotating safety brake safety device seam weld Second wheel shear shown Source-to-film distance specification stress teeth testing torque transverse tube turret clock welded seam Westminster Clock Whitehurst wrought iron Yoke