Housed in a former workshop is the working exhibition of letterpress-printing equipment ranging from early hand operated presses to power machinery, including hot metal casters.
Here in the print room there are examples of hand set, linotype and monotype
printing. There are Albion, Wharfedale, Columbian, Adana, and proof
presses.
The printer will be pleased to answer your questions
and demonstrate the equipment.
You can even print your own souvenir.
At the heart of the letterpress printing process is the use of moveable
type - individual pieces of metal or wood, each bearing a character
in relief on one end, that can be brought together to form words and
sentences. Johann Gutenberg is traditionally regarded as the
inventor of printing in Europe, but the significant part of his discovery
was the production of metal type using a mould - the first example
of precision mass-production.
The process of making type begins with the punch-cutter, who makes a steel
punch in the shape of each letter required. The punch is hardened
and then driven into a block of soft copper to form a 'matrix' or
mould from which type can be cast.
Type
was cast in a hand-mould, which produced types of a fixed height but
was adjustable for width so as to be able to cast narrow characters
like 'i' and wide ones like 'W'. Molten type-metal - an alloy of lead,
tin and antimony - was poured into the mould with a small ladle and
solidified almost at once. The piece of type was extracted from the
mould and the process repeated. A skilled caster might turn out 4000
types a day.
In
the 19th century various machines were developed to cast type automatically
at a rate of 20,000 a day or more. But the steel punches had still
to be cut by hand.
Click here to see the
Chimney