All About Glass

All About Glass

This is your resource for exploring various topics in glass: delve deeper  with this collection of articles, multimedia, and virtual books all about glass. Content is frequently added to the area, so check back for new items. If you have a topic you'd like to see covered, send us your suggestion. If you have a specific question, Ask a Librarian at our Rakow Research Library.

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Porringer
Glass Dictionary Term

A shallow dish, usually with one or two horizontal handles, for porridge or similar food. Porridge is either a soft food made by boiling meal of cereals or legumes in milk or water until it becomes thick, or a soup of meat and vegetables, often thickened with cereal. Porringers Porringer and Plate

Porrón
Glass Dictionary Term

(Spanish) A type of drinking vessel with a narrow neck, a long and tapering spout, and no handle, used in Spain for drinking wine by pouring it into the mouth. Porróns Porron poron porrons porons Drinking Vessel (Porron)

Posset pot
Glass Dictionary Term

A spouted vessel used for consuming posset, a beverage of hot milk curdled by wine or ale, usually spiced or sweetened, and thickened with oatmeal or bread. The drinker sucked the liquid through the spout and ate the residue with a spoon. posset pots Posset Pot with Raven's Head Seal

Post
Glass Dictionary Term

The glass used to attach a second pontil to glass that is about to be pulled into a cane. posts

Post technique
Glass Dictionary Term

Instead of being applied to a vessel with a wad, the pontil is attached to a flat plate of glass called a “post,” which is then affixed to the base or footring of the vessel. post-technique

Pot
Glass Dictionary Term

A fire-clay container in which batch is fused and kept molten. The glassworker gathers glass directly from the pot. pots

Preserving jar
Glass Dictionary Term

A jar for preserving food. The term refers to jars with a variety of methods for sealing the contents. John Landis Mason perfected the first inexpensive method of sealing glass jars in 1858. preserving jars Preserving Jar

Pressed glass
Glass Dictionary Term

Glassware formed by placing a blob of molten glass in a metal mold and pressing it with a metal plunger or “follower” to form the inside shape. The resultant piece, termed “mold-pressed,” has an interior form independent of the exterior, in contrast to mold-blown glass, whose interior corresponds

Prunt
Glass Dictionary Term

A blob of glass applied to a glass object primarily as decoration, but also to afford a firm grip in the absence of a handle. prunts prunted Beaker with Prunts

Lion-mask stem
Glass Dictionary Term

A hollow stem made by blowing the gather into a mold patterned with two lion’s masks, usually separated by festoons. Lion-mask stems, first used in Venice in the 16th century, subsequently became one of the hallmarks of façon de Venise glass. Lion-mask stems Lion mask stems Lion mask stem Drinking

Linen smoother
Glass Dictionary Term

An object believed to have served as a pressing iron. The earliest linen smoothers date from the Middle Ages, and the latest were made in the 18th century. linen smoothers Linen Smoother

Lily-pad decoration
Glass Dictionary Term

Decoration consisting of a gather around the base of the vessel, which has been drawn upward in four or more projections with rounded ends. Lily-pad decoration was introduced to America by German glassworkers. It became popular in New England, New York, and New Jersey in the second quarter of the

Lentoid flask
Glass Dictionary Term

A flask with a lens-shaped body. Lentoid flasks Lentoid Flask (flask shaped like lens)

Lathe cutting
Glass Dictionary Term

The technique whereby a blank in the general shape of the finished object is mounted on a lathe and (in antiquity) turned with the aid of a bow or handled wheel, while a tool fed with abrasive is held against the surface in order to polish it, modify the profile, or cut it. lathe cut lathe cuts

Kuttrolf
Glass Dictionary Term

(German) A flask with the neck divided into two or more tubes. The Kuttrolf, which has Roman antecedents, was produced by German glassworkers in the later Middle Ages; it is also found among Venetian and façon de Venise glasses of the 16th and 17th centuries. Kuttrolfs Kuttrolf

Kurfürsten Humpen
Glass Dictionary Term

(German, “electors beaker”) A Humpen decorated with images of the Holy Roman emperor and the seven electors of the empire. Kurfürsten Humpens Kurfursten humpen

Kohl tube
Glass Dictionary Term

(from Arabic kuhl, a cosmetic) A small tubular container for cosmetics such as kohl. Kohl is a black powder, traditionally prepared from antimony, used in many parts of the Islamic world to darken the eyelids. Kohl Tube

Knop
Glass Dictionary Term

A component, usually bulbous, of the stem of a drinking glass, hollow or solid, used either singly or in groups, and placed contiguously or with intermediate spacing; also the finial at the center of a lid. knops Drinking Tazza

Kiln forming
Glass Dictionary Term

The process of fusing or shaping glass (usually in or over a mold) by heating it in a kiln. kiln-forming kiln form kiln-form kiln formed kiln-formed kiln forms kiln-forms Slumping

Kiln
Glass Dictionary Term

An oven used to process a substance by burning, drying, or heating. In contemporary glassworking, kilns are used to fuse enamel and for kiln-forming processes such as slumping. kilns

Jelly glass
Glass Dictionary Term

A vessel, popular in the 18th century, for serving jelly and other desserts. Jelly glasses usually have an inverted conical bowl, a square stem, and a foot. They may have one or two handles. jelly glasses Jelly Glass

Jacobite glass
Glass Dictionary Term

An 18th-century English drinking vessel most often used for toasting Prince Charles Edward Stuart (“Bonnie Prince Charlie”). The Jacobites were supporters of the exiled King James II, who abdicated in 1698, and of his descendants James Edward Stuart (the “Old Pretender”) and his son Charles Edward

Iridescence
Glass Dictionary Term

The rainbowlike effect that changes according to the angle from which it is viewed or the angle of incidence of the source of light. On ancient glass, iridescence is caused by interference effects of light reflected from several layers of weathering products. On certain 19th- and 20th-century

Inlay
Glass Dictionary Term

Any object embedded in the surface of a larger object. inlays Marquetry Les Pins (Pines)

Humpen
Glass Dictionary Term

(German, “beaker”) A large cylindrical beaker, usually with enameled decoration, made in Germany, Bohemia, and Silesia between the 16th and 18th centuries, and used mainly for drinking beer. humpens Kurfürsten Humpen Reichsadler Humpen Ages of man humpen

Humidor
Glass Dictionary Term

A closed container in which the air is kept appropriately humidified (for example, for keeping cigars). humidors Cigar Jar with Cover, Wavecrest

Hookah
Glass Dictionary Term

(from Arabic huqqa) A bell-shaped or globular bottle that is part of the water pipe used mainly in the Islamic world and India for smoking tobacco. The smoke passes through the water-filled bottle before the smoker inhales it. Hookahs Base of a Water Pipe (Hookah)

Hedwig beaker
Glass Dictionary Term

A very rare type of thick-walled glass beaker with relief-cut decoration of lions, griffins, eagles, and other motifs. Hedwig beakers date from about the 12th century, but their place of manufacture is unknown. They are so called because one of the surviving examples is said to have belonged to

Heat-shaded glass
Glass Dictionary Term

Glass that shades from one color to another. For example, Burmese glass shades from yellow to pink. Heat-shaded glasses Heat shaded glass Heat shaded glasses Burmese Vase in "Lace Embroidery, Queen's" Pattern

Heat-resistant glass
Glass Dictionary Term

Glass that withstands thermal shock (severe changes of temperature). Such glass can be tempered to make it more heat-resistant, and borosilicate glasses such as Pyrex are particularly resistant to thermal shock. heat resistant glass heat resistant glasses heat-resistant glasses

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