[9]04/5B3 New the National Theatre. (1) Sound Insulating Doors

  • This material is held at
  • Reference
      GB 2080 TPC/1/14/1
  • Dates of Creation
      27 May 1969-31 December 1972
  • Physical Description
      3 folders

Scope and Content

File of correspondence mainly between Theatre Projects Consultants Ltd and various companies and consultants regarding sound insulating doors, safety curtains and smoke vents. Subjects covered include quotations and estimates; information on the equipment made by these companies and how they will meet the Theatre Projects Consultants Ltd's specifications, including descriptions, outline specifications and related sketches; invitations to tender and resulting tender documents and forms; issues with door 'D'; notes on sound reduction with attached acoustical research; the issue of drawings; and finishes and alterations.

Correspondents include Dreadnought Fireproof Doors (1930) Ltd; Geo W King Ltd; Acoustic Designers; Mole Richardson (Stage & Studio Engineering) Ltd; Hall Stage Equipment Ltd; Hall & Dixon Ltd; Denys Lasdun & Partners; Acoustical Investigation & Research Organisation; and Flint & Neill Ltd. The file also includes specifications for the safety curtain and fire and sound resistant doors (including Theatre Projects Consultants Ltd specification number 904/FS17 and number 904/FS10); sketch number DF 3145 'Elevation of Winch and Latching Gearr' by Geo W King Ltd; a series of 5 sketches by Hall Stage Equipment Ltd 'National Theatre Sound Insulated Doors'; a sketch by Hall Stage Equipment Ltd number E 3148 'Basic Construction For 35dB Average Sound-Insulating Door'. Original card folder disposed of. '[9]04/5B3 New the National Theatre. (1) Sound Insulating Doors.' was written on the spine.

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