Tiara Exclusives Dictionary | |
Anneal | Removes objectionable stresses in glassware by controlling the cooling speed |
Base | The bottom of an item |
Batch | The raw materials, properly mixed, to be melted and changed into molten glass |
Block Mold | A one-piece mold |
Blower (Gaffer) | A person who forms glassware by blowing through a blowpipe |
Blown Glass | Glassware that is shaped by air pressure, such as by compressed air or by mouth |
Blowpipe | A pipe used by glassmakers for gathering molten glass and then shaping the glassware by blowing through the pipe |
Cameo | A gemstone or opaque material with a decorative figure, usually carved in relief on the surface |
Captain's Decanter | A decanter with a wide bottom to make it more stable on a rolling ship |
Chalice | A drinking cup. A vessel used in the sacrament of Communion |
Chillmark | A wrinkled surface condition on glassware |
Chip | An imperfection in glass due to breakage of a small fragment out of an otherwise regular surface |
Colonial | Refers to early America or the colonial settlements preceding the union of the states |
Console Bowl | A decorative bowl to be used on a console table of buffet for fruit or flowers |
Constellation | A group of fixed stars that seem to form a pattern in the sky |
Continuous Tank | A glass furnace in which the level of molten glass remains constant because the feeding of batch continuously replaces the glass taken out |
Cord | A cord is an almost invisible difference in density in the glass which occurs during the fusing of the molten glass |
Cullet #1 | Waste or broken glass, usually used as an addition to raw batch |
Cullet #2 | Waste of broken glass, usually suitable as an addition to raw batch |
Cullet #3 | Foreign cullet: Cullet from an outside source |
Cullet #4 | Domestic Cullet: (factory cullet) which will later be cut off and discarded or remelted |
Day Tank | A periodic melting unit, usually designed to be emptied by each day of hand gathering |
Decanter | A decorative bottle used to store and pour beverages |
Demijohn | A large storage vessel for beverages. Now used decoratively with bouquets, dried flowers, etc. |
Etch | Marking or decorating the surface of a glass item by using hydrofluoric acid |
Etched | Treated by etching |
Etched Glass | Glass that has been decorated by subjecting it to the controlled corrosive action of strong acids |
Finisher | The work person who does the final work, such as polishing or placing the handle or foot on a piece of ware |
Fire-Polish | To make glass smooth, rounded or glossy by heating in a fire |
Forming | The shaping of hot glass |
Frit Feeder | The color concentrate is fed in the top of the tank making small batches of color with out draining the tank keeping the cost lower. |
Gather | To get glass from a pot tank on a pipe or punty |
Glory Hole | An opening to the hot interior of a furnace used to reheat the glass in hand working |
Gob | A portion of molten glass gathered on a punty or pipe |
Goblet | A drinking vessel with a foot and a stem |
Lehr | A long, tunnel-shaped oven used for annealing glass items by controlling the cooling speed |
Overpress | An imperfection in glass. Excess projections resulting from an imperfect closing of mold joints |
Paste Mold | A mold lined with adherent carbon, used wet for blown ware |
Pressed Glass | Glassware formed by pressure between a mold and plunger |
Pressing | The operation of forming pressed glass |
Punty | A device to which ware is attached for holding during fire polishing of finishing |
Seam | A mark on a glass surface resulting from a joint of matching mold parts |
Seed | An extremely small "bubble" in glassware |
Shear Mark | A scar appearing in glassware caused by the cooling action of the cutting shear |
Snap | A device for gripping a piece of formed glass for fire polishing and finishing |
Striking the color | A pressed piece was flashed or reheated to change the color or hue |
Tank | A melting unit in which the container from the molten glass is constructed from refractory blocks |