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Woodblock printing had been known in China for centuries. It was innovations in type casting that made for Gutenberg's breakthrough of commercially printing. [1] Although using matrices was a technique known well before his time, Johannes Gutenberg adapted their use to a conveniently adjustable hand mould, enabling one to easily and accurately cast identical multiple instances of any character.
These are applied to all letters, invoices issued, and similar documents. In Europe these are today plastic self-inking stamps. Notaries also still use seals on a daily basis. At least in Britain, each registered notary has an individual personal seal, registered with the authorities, which includes his or her name and a pictorial emblem, often ...
Medieval letter tiles are one-letter ceramic tiles that were employed in monasteries and churches of the late Middle Ages for the creation of Christian inscriptions on floors and walls. They were created by pressing stamps bearing a reverse image into soft clay , which was then baked hard, and they were used to form words by assembling single ...
The Ludlow system uses molds, known as matrices or mats, which are hand-set into a special composing stick. Thus the composing process resembles that used in cold lead type printing. Once a line has been completed, the composing stick is inserted into the Ludlow machine, which clamps it firmly in place above the mold.
Brick stamp of Shar-Kali-Sharri, National Museum of Iraq. [6] Brick stamps were used by the Akkadian Empire (2334–2154 BCE) in Mesopotamia in order to dedicate the bricks used in temples, by inscribing the name of the ruler. [6] A typical brick stamp of the ruler Naram-Sin for example would read "Naram-sin builder, the temple of Goddess ...
At first, one cuts letters in beech wood. One fills a trough level with fine sandy [clay] of the reed-growing seashore. Wood-cut letters are pressed into the sand, then the impressions become negative and form letters [molds]. At this step, placing one trough together with another, one pours the molten bronze down into an opening.
A stamp which has the text carved in high-relief and in right reading is pressed into the slightly moist sand or clay of the mould, thus producing a reverse image of the text in bas-relief. After the molten lead is poured out in the mould, the inscription appears raised in high-relief on the surface of the lead pipe.
A small mark applied to the underside, the back, of articles to give information such as the identity of maker. Various techniques to apply the stamp exist. Ball clay A secondary clay. Ball clays invariably also contain various non-clay minerals, and sometimes organic matter. They commonly exhibit high plasticity and high dry strength.( Ball mill
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