Monotype Caster (from ECP)
Mono­type Cast­er (from ECP)

Mono­type described this as a machine which “…auto­mat­i­cal­ly casts and deliv­ers lines of per­fect­ly-spaced lines of hard, new, deep-cut sin­gle types, being con­trolled by the per­fo­rat­ed paper rib­bon pro­duced on the keyboard”.

The key thing that marks the com­po­si­tion cast­er as dif­fer­ent from their oth­er cast­ers is that this machine was designed to pro­duce long pas­sages of text-sized type: any­thing up to 14pt.  For big­ger types an attach­ment was need­ed but the Mono­type Super Cast­er was preferable.

This machine, too, demand­ed some essen­tial, but inter­change­able, parts –

  • Mould: this defines both the body size and the height of the type (usu­al­ly 0.918″ in Britain)
  • Matrix Case: this is a case con­tain­ing the brass moulds (or matri­ces) that are inject­ed with molten met­al to form the indi­vid­ual types.  The case holds more than one alpha­bet in a 15 x 15 or 15 x 17 lay­out.  The posi­tion of each char­ac­ter with­in the case is dic­tat­ed by the width of that character
  • Nor­mal Wedge: this is a met­al wedge that defines the width of each char­ac­ter in the matrix case


Weight1466 lb
Work­ing Area7′ x 7′
Gas con­sump­tion (for gas-heat­ed machines)20 cu. ft./hr
Elec­tric­i­ty consumption2 units/hour
Air Pres­sure15 lbs/sq. in.
Speeds140 — 180 rpm (depend­ing on type size)
Dri­ving pulley14″
Motor½ horse­pow­er
Elec­tric HeatingFun­di­tor or Rototherm
Pot capac­i­ty85 lbs
Stan­dard Mea­sure (or line length)4¼pt. to 14pt up to 60ems pica


Because this machine was pressed in to ser­vice to do all kinds of work, Mono­type pro­duced many attach­ments including –

  • Dis­play: this is use to cast types of up to 36pt, but a speed reg­u­la­tor is also need­ed to get the cast­er to run at the cor­rect speed
  • Duplex Mould, and Dual Type attach­ments used for cast­ing exot­ic types
  • Ingot Feed­er: to keep the molten met­al in the machine con­stant­ly topped up
  • Large Type Com­po­si­tion: used to extend the size of the type that can be cast with auto­mat­ic spac­ing and sequenc­ing.  This extends the range of the machine to 24 point from 14 point
  • Lead and Rule: allowed for the cre­ation of rules and leads from 1½pt to 12pt to any length from 6picas to 25 inches
  • Lead­ing: allows for pre-cast rules to be insert­ed between lines as they are com­posed by the machine
  • Light­ing: which includ­ed a mag­ni­fy­ing glass to inspect the types as they were produced
  • Quadding and Cen­ter­ing: to help with cast­ing space in cen­tred or ranged-right or left lines
  • Reverse Deliv­ery: to accom­mo­date right-to-left-read­ing languages
  • Speed Reg­u­la­tors: to get the machine to work at the best speeds for larg­er types or rules and leads