| Description | The file contains correspondence mainly between Theatre Projects Consultants and Sir Robert McAlpine and their subcontractors regarding day-to-day overseeing of payments and the progress of contractors towards completion and dealing with outstanding issues and defects. The original file was marked 'McA & C.H.E.' [McAlpine & Crown House Engineering Ltd], which corresponds to much of the material in the file; however, it also contains material relating to other subcontractors including Hall Stage Equipment Ltd, Tele-Stage Associates Ltd and Mole Richardson (Stage & Studio Engineering) Ltd. Specific subjects covered include the issuing of practical completion certificates; wiring to Upper Theatre control room windows; lighting bridges; drum revolve (painting, elevators, locks, counterweight cradle inspection, clearance around its edges, support wheels); Lower Theatre working light panel; personnel lifts; outstanding electrical works in the Olivier Theatre; Lower stage floor; Upper Theatre power flying; testing (lighting hoists, electrical circuits, Olivier Theatre loop impedance); delays (Upper Theatre control room, caused by Crown House Engineering Ltd, sound door, sound and communications installations); faults and damage (Lyttelton light fittings, Upper Theatre roof, with the work of Tele-Stage Associates Ltd and Hall Stage Equipment Ltd, wiring, smoke vents, cables, lighting hoists, switchboards, scenery lifts); auditorium par batten bars; matrix room connections; site issues (access, outstanding instructions, safety, Hall Stage Equipment Ltd claim for losses); Upper Theatre fly tower maintenance instructions; access to hydraulic pack; sprinkler installation; Olivier Theatre lighting bars; stalls telephone outlets; attendance rates for Evershed Power-Optics Ltd employees; matrix room CO2 installation; scaffolding for the fly tower; daywork sheets; lighting hoist control system warranty; electrical service manuals; and record drawings. Correspondents include Theatre Projects Consultants Ltd, Sir Robert McAlpine & Sons Ltd; Hall Stage Equipment Ltd; Crown House Engineering Ltd; Flint & Neill Ltd; Ainslie Controls Ltd; Mole Richardson (Stage & Studio Engineering) Ltd; Tele-Stage Associates Ltd; Denys Lasdun & Partners; United Lift Company Ltd; Sloane Electrical Ltd; Olympiad Signs Ltd; and Coubro + Scrutton (M&I) Ltd. Items include reports on Crown House Engineering Ltd, McAlpine, Tele-Stage Associates Ltd, Hall Stage Equipment Ltd and Mole Richardson (Stage & Studio Engineering) Ltd's state of completion; drawing number F20-21 A 'Lower Hanger Arrangement to Lighting Bridges & Ceiling Panels'; a long letter from Ainslee Controls Ltd to Crown House Engineering Ltd refuting criticisms of their equipment with reply; and drawing number D14-396 'National Drum Revolve Chart for Site Measurements'. Original card folder disposed of. 'McA & C.H.E.' was written on the front cover.
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