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Potash Hut
A potash works (german: Aschenhaus, ''Aschenhütte'' or ''Potaschhütte'') was a subsidiary operation of a glassworks in the Early Modern Period. The latter needed potash, as well as quartz and lime as raw materials for the manufacture of glass. Potash acted as a flux in the production process, that is by mixing it with quartz sand it significantly reduced the melting point of the latter. To make potash the glassworks built potash huts or works in the vicinity, in which wood ash and vegetable ash was gathered by ash burners and initially washed in water and then vaporized; the whole process being known as leaching. Contemporary witness, teacher and local historian, Lukas Grünenwald, recorded the recollections from his youth in Dernbach in the Palatinate region:Helmut Seebach: ''Altes Handwerk und Gewerbe in der Pfalz.'' Vol. 3: ''Pfälzerwald. Waldbauern, Waldarbeiter, Waldprodukte- und Holzwarenhandel, Waldindustrie und Holztransport.'' Bachstelz-Verlag, Annweiler-Queichhambach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glassworks
Glass production involves two main methods – the float glass process that produces sheet glass, and glassblowing that produces bottles and other containers. It has been done in a variety of ways during the history of glass. Glass container production Broadly, modern glass container factories are three-part operations: the "batch house", the "hot end", and the "cold end". The batch house handles the raw materials; the hot end handles the manufacture proper—the forehearth, forming machines, and annealing ovens; and the cold end handles the product-inspection and packaging equipment. Batch processing system (batch house) Batch processing is one of the initial steps of the glass-making process. The batch house simply houses the raw materials in large silos (fed by truck or railcar), and holds anywhere from 1–5 days of material. Some batch systems include material processing such as raw material screening/sieve, drying, or pre-heating (i.e. cullet). Whether automated or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palatinate Region
The Palatinate (german: Pfalz; Palatine German: ''Palz'') is a region of Germany. In the Middle Ages it was known as the Rhenish Palatinate (''Rheinpfalz'') and Lower Palatinate (''Unterpfalz''), which strictly speaking designated only the western part of the Electorate of the Palatinate (''Kurfürstentum Pfalz''), as opposed to the Upper Palatinate (''Oberpfalz''). It occupies roughly the southernmost quarter of the German federal state of Rhineland-Palatinate (''Rheinland-Pfalz''), covering an area of with about 1.4 million inhabitants. Its residents are known as Palatines (''Pfälzer''). Geography The Palatinate borders Saarland in the west, historically also comprising the state's Saarpfalz District. In the northwest, the Hunsrück mountain range forms the border with the Rhineland region. The eastern border with Hesse and the Baden region runs along the Upper Rhine river, while the left bank, with Mainz and Worms as well as the Selz basin around Alzey, belong to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Glass
The history of glass-making dates back to at least 3,600 years ago in Mesopotamia. However, some writers claim that they may have been producing copies of glass objects from ancient Egypt, Egypt. Other archaeological evidence suggests that the first true glass was made in coastal north Syria, Mesopotamia or Egypt. The earliest known glass objects, of the mid 2,000 BCE, were beads, perhaps initially created as the accidental by-products of Metalworking, metal-working (slags) or during the production of Egyptian faience, faience, a pre-glass Lustre (mineralogy)#Vitreous lustre, vitreous material made by a process similar to Ceramic glaze, glazing. Glass products remained a luxury until the Late Bronze Age collapse, disasters that overtook the late Bronze Age civilizations seemingly brought glass-making to a halt. Development of glass technology in India may have begun in 1,730 BCE. In Ancient Chinese glass, Ancient China, glass-making had a later start compared to ceramics and meta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass Production
Glass production involves two main methods – the float glass process that produces sheet glass, and glassblowing that produces bottles and other containers. It has been done in a variety of ways during the history of glass. Glass container production Broadly, modern glass container factories are three-part operations: the "batch house", the "hot end", and the "cold end". The batch house handles the raw materials; the hot end handles the manufacture proper—the forehearth, forming machines, and annealing ovens; and the cold end handles the product-inspection and packaging equipment. Batch processing system (batch house) Batch processing is one of the initial steps of the glass-making process. The batch house simply houses the raw materials in large silos (fed by truck or railcar), and holds anywhere from 1–5 days of material. Some batch systems include material processing such as raw material screening/sieve, drying, or pre-heating (i.e. cullet). Whether automated or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mainhardt
Mainhardt is a municipality in the district of Schwäbisch Hall in Baden-Württemberg in Germany. See also * Mainhardt Forest The Mainhardt Forest is a hill range up to {{GeoQuelle, DE, BFN-Karten in the counties of Schwäbisch Hall and Heilbronn, Hohenlohekreis and Rems-Murr-Kreis in the German state of Baden-Württemberg. It is named after the municipality of Mainha ... References Schwäbisch Hall (district) {{SchwäbischHall-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cubic Metre
The cubic metre (in Commonwealth English and international spelling as used by the International Bureau of Weights and Measures) or cubic meter (in American English) is the unit of volume in the International System of Units (SI). Its symbol is m3. Bureau International de Poids et Mesures.Derived units expressed in terms of base units". 2014. Accessed 7 August 2014. It is the volume of a cube with edges one metre in length. An alternative name, which allowed a different usage with metric prefixes, was the stère, still sometimes used for dry measure (for instance, in reference to wood). Another alternative name, no longer widely used, was the kilolitre. Conversions : A cubic metre of pure water at the temperature of maximum density (3.98 °C) and standard atmospheric pressure (101.325 kPa) has a mass of , or one tonne. At 0 °C, the freezing point of water, a cubic metre of water has slightly less mass, 999.972 kilograms. A cubic metre is sometimes abbreviated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centner
The quintal or centner is a historical unit of mass in many countries which is usually defined as 100 base units, such as pounds or kilograms. It is a traditional unit of weight in France, Portugal, and Spain and their former colonies. It is commonly used for grain prices in wholesale markets in Ethiopia and India, where 1 quintal = 100 kg. In British English, it referred to the hundredweight; in American English, it formerly referred to an uncommon measure of 100 kilograms. Languages drawing its cognate name for the weight from Romance languages include French, Portuguese, Romanian and Spanish , Italian , Esperanto , Polish . Languages taking their cognates from Germanicized ''centner'' include the German , Lithuanian , Swedish , Polish , Russian and Ukrainian (), Estonian and Spanish . Many European languages have come to translate both the imperial and American hundredweight as their cognate form of ''quintal'' or ''centner''. Name The concept has resulted in two ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swabian-Franconian Forest
The Swabian-Franconian Forest (german: Schwäbisch-Fränkischen Waldberge, also ''Schwäbisch-Fränkischer Wald'') is a mainly forested, deeply incised upland region, 1,187 km² in area and up to , in the northeast of Baden-Württemberg. It forms natural region major unit number 108 within the Swabian Keuper-Lias Land (major unit group 10 or D58). Its name is derived from the fact that, in medieval times, the border between the duchies of Franconia and Swabia ran through this forested region. In addition, the Swabian dialect in the south transitions to the East Franconian dialect in the north here. Hill ranges and hills The Swabian-Franconian Forest is divided clockwise (beginning roughly in the north) into the Waldenburg Hills, Mainhardt Forest, Limpurg and Ellwangen Hills, Virngrund, Murrhardt Forest, Löwenstein Hills, Heilbronn Hills and Sulm Plateau; in addition the valley of Weinsberger Tal, which lies between the last two uplands, is part of the region The hig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spiegelberg
Spiegelberg is a municipality in the Rems-Murr district of Baden-Württemberg, Germany. History Spiegelberg's name comes from a glassworking manufactory built in the town in 1699 that produced mirrors from 1705 to 1794. Geography The municipality (''Gemeinde'') of Spiegelberg is located at the northern edge of the Rems-Murr district of Baden-Württemberg, along its border with the district of Heilbronn. Spiegelberg is situated in the valley of the Lauter and within the Swabian-Franconian Forest. Elevation above sea level in the municipal area ranges from a high of Normalnull (NN) to a low of NN. A portion of the Federally protected nature reserve is located in Spiegelberg's municipal area. Politics Spiegelberg has three boroughs (''Ortsteile'') – Jux, Nassach, and Spiegelberg – and ten villages: Dauernberg, Eisenlautern, Gieshof, Großhöchberg, Hüttlen, Kurzach, Neuhöchberg, Obere Roßstaig, Roßsteig, and Vorderbüchelberg. The industrial district of Roßstaig and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forest Glass
Forest glass (''Waldglas'' in German) is late medieval glass produced in northwestern and central Europe from approximately 1000–1700 AD using wood ash and sand as the main raw materials and made in factories known as glasshouses in forest areas.Tait, H., 1991. It is characterized by a variety of greenish-yellow colors, the earlier products often being of crude design and poor quality, and was used mainly for everyday vessels and increasingly for ecclesiastical stained glass windows. Its composition and manufacture contrast sharply with Roman and pre-Roman glassmaking centered on the Mediterranean and contemporaneous Byzantine and Islamic glass making to the east. History While under Roman rule, the raw materials and manufacturing methods of northern Europe were those of the Roman tradition, using the mineral Natron. For several centuries after the fall of the Western Roman Empire, around 450 AD, recycling of Roman glass formed the major part of the local industry and glassma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mother Liquour
The mother liquor (or spent liquor) is the solution remaining after a component has been removed by a some process such as filtration or more commonly crystallization. It is encountered in chemical processes including sugar refining. In crystallization, a solid (usually impure) is dissolved in a solvent at high temperature, taking advantage of the fact that most solids are more soluble at higher temperatures. As the solution cools, the solubility of the solute in the solvent will gradually become smaller. The resultant solution is described as supersaturated, meaning that there is more solute dissolved in the solution than would be predicted by its solubility at that temperature. Crystallization can then be induced from this supersaturated solution and the resultant pure crystals removed by such methods as filtration Filtration is a physical separation process that separates solid matter and fluid from a mixture using a ''filter medium'' that has a complex structure through w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wicker
Wicker is the oldest furniture making method known to history, dating as far back as 5,000 years ago. It was first documented in ancient Egypt using pliable plant material, but in modern times it is made from any pliable, easily woven material. The word ''wicker'' or "wisker" is believed to be of Scandinavian origin: , which means "to fold" in Swedish, and meaning willow. Wicker is traditionally made of material of plant origin, such as willow, rattan, reed, and bamboo, but synthetic fibers are now also used. Wicker is light yet sturdy, making it suitable for items that will be moved often like porch and patio furniture. ''Rushwork'' and wickerwork are terms used in England. A typical braiding pattern is called ''Wiener Geflecht'', Viennese Braiding, as it was invented in 18th century Vienna and later most prominently used with the Thonet coffeehouse chair. History Wicker has been documented as far back as ancient Egypt, made from indigenous "reed and swamp grasses." Middle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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