| Description | The file contains Theatre Projects Consultants Ltd correspondence with various contractors regarding the drum revolve installation, covering hydraulics, the revolve pit; elevators; support wheels; appraisal of already installed machinery; wheel loading; progress towards completion; handbooks; selection of floor coverings; friction drive; the Cottesloe Theatre disk revolve noise; drum revolve support system; a safety curtain failure in the Lyttelton; the revolve calculator; disorganisation over test work; daytime access; difficulties and disagreements with Mole-Richardson (Stage & Studio Engineering) Ltd over factory visits, slow progress and payments; the payment of invoices; rising handrail; ex-gratia payments to Evershed Power Optics Ltd; completion and additional work; and the drum cap. Other correspondents include Humphries Holdings; the South Bank Theatre Board; Mole Richardson (Stage & Studio Engineering) Ltd; Flint & Neill Ltd; Evershed Power-Optics Ltd; M. I. M. Barnett Ltd; the National Theatre; Sir Robert McAlpine & Sons Ltd; Denys Lasdun & Partners; Coubro + Scrutton (M & I) Ltd; Vickers Ltd; Dunlop Ltd; Sound Research Laboratories Ltd; Crown House Engineering Ltd; P E Kemp Engineers Ltd; and B.D. Engineering Services Ltd. The file includes drawing number X 14069 'Meter Scales for Elevators on Drum Revolve Mimic at Control Desk' and a completion and rectification programme. The original card folder has been disposed of. '5 Drum Revolve Jan 77-Nov 78' was written on the front, and 'the National Theatre 904/5B1 (Temp. File) 5 From Jan 77 5B1.5 Closed.' was written on the spine. |