Glass: A Pocket Dictionary Of Terms Commonly Used - Corning ...

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Grinding: The technique of removing the surface of an
object with a rotating wheel fed with an abrasive, or by
some other means.
Grisaille (from French gris, “gray”): (1) A method of decorative
painting in monochrome gray especially, but not
exclusively, on stained glass windows; (2) brown paint
made from iron oxide, which, when fused to the glass,
defines details in a stained glass window.
Grozing: The process of breaking away the edge of
a glass object with a grozing iron or pliers in order to
shape it.
Guinand: A fire-clay pot used in the manufacture of
optical glass. it is named after its inventor, Pierre louis
Guinand (1748–1824).
cooler: A solid, egg-shaped piece of glass or decorative
stone, said to have been used to cool the palms
of a woman’s hands.
Hand press: A tool shaped like a pair of pliers, with flat
jaws containing molds. Hand presses were used extensively
in Europe for making chandelier parts. later, they
were introduced in the United states for pressing stoppers
and bases.
Hard glass: A generic name for glass (e.g., borosilicate
glass) with a relatively low coefficient of expansion. Soft
glass (e.g., soda-lime glass), by contrast, has a relatively
high coefficient of expansion.
Hausmaler (German, “home painter”): A decorator who
enameled glass or porcelain while working from home
independently of the manufacturer.
Head flask: A mold-blown flask with the body in the
form of a human head. Head flasks were popular in the
roman Empire, and examples were made from the first
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