A - C
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Glossary A - C

Back- the inner margin in a book between the type and the spine

Bed- Flat surface of a press in which the form rests
Blocks- Relief letterpress printing plates of metal or other material produced by hand-cutting, etching by acids, electronic engraving, stereotyping or electrotyping, and mounted on wood or metal bases to printing height.
Case- a tray divided into compartments to hold type and spaces
Cast-off-  the calculation of the extent of a book; the number of pages required to print a text in a certain typeface and point size, done by counting the characters and spaces.  This was often achieved by using a slide rule
Case room - (see composing room)
Chapel- Work based print union. The use of chapel is thought to derive from the proximity of Caxton’s printing press to Westminster Abbey or through the close association of the early industry with the church and theological writings
Chase- a metal frame into which type, blocks etc are fixed before printing
Collotype- A photographic process of reproduction for making copies using gelatine based plates
Colophon- the last note in a book, usually a symbol giving details of the author, printer, date and place where printed
Composing / case room- the room where the job is set by the compositor, ready to be transported to the machine room.  Also known as the case room because the cases of type are stored there on racks.
Composing stick - Adjustable metal tray into which lines of type are set and justified
Composition caster - The casting machine comprises a mould, metal pot, a die or matrix case, a paper tower and devices for positioning the diecase over the mould.
Compositor- Works in the case room.  Usually has undergone a seven year apprenticeship.  Sets the type and lays out the job ready to be transported to the machine room.