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President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 6880365 | Use of sintered refractory material based on tin oxide for producing glass furnace throats The use of blocks (1, 2, 3, 4) based on sintered tin oxide for producing the throat of a glass furnace. ... | 04/19/2005 |
| 6227007 | Submerged glass delivery throat and delivery method Process and apparatus are disclosed for delivering molten thermoplastic material from one chamber to another through a throat in a refractory wall separating said chambers. A refractory metal conduit is positioned within said refractory throat below the l... | 05/08/2001 |
| 5613994 | Electric furnace for melting glass The device for melting glass includes a compartment 1 for melting with a discharge throat 11 defined on top by a mobile carrier 16 having an upper part 18 extending upward above the level of glass and a lower part 17 intended to be totally immersed in the... | 03/25/1997 |
| 5588978 | Process and apparatus for coloring glass A method and apparatus for the production of colored glass includes the steps of diverting a stream of clear molten glass from at least one glass melting furnace through one or more transport channels to a color treatment chamber. Recycled cullet and colo... | 12/31/1996 |
| 4948411 | Glass melting furnace for glazing environmentally hazardous wastes Furnace has a melting section and a withdrawal section bounded by side walls of refractory material which extend to a glass outlet formed by an overflow edge remote from the melting section. In operation a molten glass layer, a molten layer of undissolved... | 08/14/1990 |
| 4900337 | Method and apparatus for working molten glass The invention relates to working molten glass in tank furnaces for continuous production. According to the process of the invention, the vitrifiable material being brought first to the molten bath state in a zone upstream from the tank, and said bath then... | 02/13/1990 |
| 4818265 | Barrier apparatus and method of use for melting and refining glass or the like In a method of making glass or the like, wherein the batch materials are liquefied in a distinct zone from the refiner, the liquefied material is heated in an intermediate stage before being fed to the refiner, and a composite barrier of a cooled frame wi... | 04/04/1989 |
| 4732601 | Apparatuses for producing plate glasses An apparatus for producing a plate glass which comprises (A) a melter for storing a molten glass material, (B) a molding portion for molding the molten glass material from the melter into a plate, (C) a temperature adjusting tank located between the melter and the ... | 03/22/1988 |
| 4594089 | Method of manufacturing glass A method for manufacturing glass by melting a batch of raw material in a melting chamber of a continuous glass-melting tank furnace, permitting the glass to flow through a rising passageway and a sill provided by the furnace to a separate refining chamber... | 06/10/1986 |
| 4584007 | Apparatus for manufacturing glass In order to conserve fuel in an apparatus for manufacturing glass, a continuous glass-melting tank furnace is provided with a melting compartment, a refining compartment, and a shadow arch between the compartments. The shadow arch is constituted by a cove... | 04/22/1986 |
| 4388721 | Throat upwell baffle A chimney baffle is positioned against a vertical refractory wall extending from a channel through which hot glass is flowing to reduce deterioration of the refractory of the vertical wall.... | 06/14/1983 |
| 4317669 | Glass melting furnace having a submerged weir A continuous tank-type glass melting furnace containing a bath of molten glass and having a waist section of reduced width whereat a submerged weir extends across the path of the molten glass bath flowing therethrough. The weir is located adjacent the flo... | 03/02/1982 |
| 4219326 | Glass melting furnace structure A waist construction for a tank-type glass melting furnace having a lower tank covered by an independently supported sprung arch roof. The side walls forming the lower tank are inset for defining a waist section having a reduced passage interconnecting th... | 08/26/1980 |
| 3989497 | Glass melting In a glass melting tank a water cooled barrier extends horizontally across the forward flow of molten glass to control the forward flow towards the working end and a plurality of stirrers, rotatable in phase with each, are arranged side-by-side across the... | 11/02/1976 |
