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Pressed glass (or pattern glass) [1] is a form of glass made by pressing molten glass into a mold using a plunger. [2] Although hand pressed glass has existed for over 1,000 years, the use of a machine for pressing was first patented by Pittsburgh glass man John P. Bakewell in 1825 to make knobs for furniture.
Blown three-mold glass was sometimes called “prest” (pressed) because the glass was blown into a mold and “impressed” with a design. [29] Various names for blown three mold glass have been used by collectors since its rediscovery in the early 20th century. It was first called “Stiegel glass” by collector Frederick W. Hunter because ...
Although pressing glass by hand has long existed, mechanical pressing of glass did not exist until the 1820s—and it was an American invention. [8] In some cases, the glass is cut and polished, engraved, etched, or enameled. [9] All glass products must be cooled gradually , or else they could easily break. [10]
Goofus glass is an American term for pressed glass that was decorated with unfired enamel paint in the early 20th century by several prominent glass factories. It contrasts with enamelled glass, where the enamel is fired, making the paint far more durable. Because it was mass produced and relatively cheap, it was given as premiums with ...
The manufacturing process for soda–lime glass consists in melting the raw materials, which are the silica, soda (Na 2 O), hydrated lime (Ca(OH) 2), dolomite (CaMg(CO 3) 2, which provides the magnesium oxide), and aluminium oxide; along with small quantities of fining agents (e.g., sodium sulfate (Na 2 SO 4), sodium chloride (NaCl), etc.) in a glass furnace at temperatures locally up to 1675 ...
Hazel-Atlas made large quantities of "Depression" pressed glassware in a wide variety of patterns in the 1920s–1940s, along with many white milkglass "inserts" used in zinc fruit-jar lids, many types of milkglass cold-cream jars and salve containers, and a large variety of bottles and jars for the commercial packaging industry. "Atlas" was ...
Hobnail glass is pressed glass with a pattern of raised bumps. It was created in 1886 at Hobbs, Brockunier and Company by William Leighton Jr. and William F. Russell. [85] Their patent, No. 343,133, discussed projecting nodules and improvements in "pressed opalescent glassware". [86] This style was the company's pattern 323.
The old fashioned glass, otherwise known as the rocks glass, whiskey glass, and lowball glass [1] [2] (or simply lowball), is a short tumbler used for serving spirits, such as whisky, neat or with ice cubes ("on the rocks"). It is also normally used to serve certain cocktails, such as the old fashioned.