A professional who operates machine to cast complete lines of type from type metal and deposit them in galley in composed form for printing. Responsibilities include:

• Starts type-casting mechanism and adjusts marginal stops and gauge to regulate length and thickness of lines to be cast.
• Reads copy and presses keys of keyboard to select matrices of letters from magazine which are assembled into words.
• Moves lever to cast line and deposit it in galley when line is complete.
• Transfers lines of type, with copy, to composing or bank table for making proof copy.
• Sets new lines of type to correct errors as indicated on proofsheet.
• Places pigs of metal on feed chain of melting pot to replenish supply.