Letter Facing Machine: Development and Design of Production Machine

Abstract

The paper briefly describes the purpose and operation of the letter facing machine and sets out certain basic considerations for the design of production machines for British Post Office use. The design of the letter facing machine Mk 1 is then described by reference to specific aspects and, in addition, by outlining the problems encountered. Further developments following on from the first machines are then discussed and more specific detail given on the Mk 3 machine. Finally, an indication of the possible work still to be done is considered.