Search Results
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Tapping open hearth furnaces and carbonizing molten metal with charcoal or coke
- After 1895
View of two workers tapping open hearth furnaces and carbonizing molten metal at an unknown manufacturing plant. Open hearth furnaces are used to burn excess carbon and other impurities out of pig iron, an intermediate…
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Pouring molten iron from blast furnace ladle into massive pig iron purifier
- After 1895
View of molten iron being poured from a blast furnace ladle into an apparatus for the purification of pig iron, intermediate product of smelting iron ore, at an unknown manufacturing plant. Blast furnaces are used to…
- Publisher Underwood & Underwood
- Subject Iron industry and trade, Steel industry and trade, Manufacturing industries
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Down the line of furnaces in open hearth mill, charging a furnace with molten iron
- After 1895
View of a line of furnaces in an open hearth mill at an unknown manufacturing plant. During the conversion of iron into steel, raw materials such as molten iron are "charged" or deposited into the interior of a furnace,…
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Stripping moulds from ingots in Bessemer mill
- After 1895
View of pig iron ingots being stripped from their molds in a Bessemer mill at an unknown manufacturing plant. The Bessemer mill takes its name from the "Bessemer process," an inexpensive industrial method for the…
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Bessemer converter in action blowing iron into steel
- After 1895
View of a Bessemer converter blowing iron into steel at an unknown manufacturing plant. The Bessemer converter takes its name from the "Bessemer process," an inexpensive industrial method for the mass-production of…
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Pig iron mixer which acts as collector, and distributer pouring into ladle
- After 1895
View of a mixer used to collect and distribute pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. This photograph is one of a set of fourteen…
- Publisher Underwood & Underwood
- Subject Iron industry and trade, Steel industry and trade, Manufacturing industries
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Making a bottom for a Bessemer converter, showing gas blast tubes
- After 1895
View of several workers forming the bottom of a Bessemer converter at an unknown manufacturing plant. The Bessemer converter takes its name from the "Bessemer process," an inexpensive industrial method for the…
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Apparatus for blowing coat of lime on moving pig moulds after use
- After 1895
View of an apparatus for applying a coat of lime onto molds filled with pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. When processing iron ore…
- Publisher Underwood & Underwood
- Subject Iron industry and trade, Steel industry and trade, Manufacturing industries
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Cooling the "pigs" in the sand moulds
- After 1895
View of a worker cooling pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. At this stage of production, the pig iron has been placed in sand molds…
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Making the sand moulds for pig iron
- After 1895
View of two workers constructing sand molds for pig iron, an intermediate product of smelting iron ore produced from a blast furnace, at an unknown manufacturing plant. Used to form pig iron ingots, such molds are…
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Drawing off molten iron from blast furnace to make "pigs"
- After 1895
View of two workers drawing off molten iron from a blast furnace to make pig iron, an intermediate product of smelting iron ore, at an unknown manufacturing plant. This photograph is one of a set of fourteen…
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Finished ware entering tempering oven at glass factory
- After 1895
View of a worker transferring a finished ware to the tempering over at a Glass Works factory in New Jersey. This photograph is one of a set of five stereographs detailing the production of blown-glass bottles.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Detail view of blast furnaces showing feed buckets ascending
- After 1895
Detail view of blast furnaces and feed buckets at an unknown manufacturing plant, with a worker visible on the bottom left-hand side of the photograph. Used to chemically reduce and physically convert iron oxides into…
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Shaping a bottle neck, while it is rolled by a helper
- After 1895
View of two workers rolling and shaping a bottle neck at a Glass Works factory in New Jersey. This photograph is one of a set of five stereographs detailing the production of blown-glass bottles.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Preparing a bottle neck for its finish
- After 1895
View of a worker preparing to finish a bottle neck at a Glass Works factory in New Jersey. This photograph is one of a set of five stereographs detailing the production of blown-glass bottles.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Blowing and turning a bottle while in the mould
- After 1895
View of a worker blowing and turning a bottle in a mold at a Glass Works factory in New Jersey. This photograph is one of a set of five stereographs detailing the production of blown-glass bottles.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Using compressed air to blow glass into shape of a mould
- After 1895
View of several workers using compressed air to blow glass into the shape of a mold at a Glass Works factory in New Jersey. This photograph is one of a set of five stereographs detailing the production of blown-glass…
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Blowing pipettes for laboratory use, in a glass factory
- After 1895
View of a worker blowing pipettes for laboratory use at an unidentified factory. This photograph is one of a set of three stereographs detailing the production of glass tubing and pipettes.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Taking flattened sheet of glass from lehr in the furnace
- After 1895
View of a worker removing a flattened sheet of glass from a lehr, a temperature-controlled kiln used to slowly cool hot glass, at an unidentified factory. This photograph is one of a set of seven stereographs detailing…
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Shaping special kinds of glass tubing in a great factory
- After 1895
View of two workers shaping special kinds of glass tubing at an unidentified factory. This photograph is one of a set of three stereographs detailing the production of glass tubing and pipettes.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Drawing out glass tubing for chemical apparatus
- After 1895
View of two workers drawing out glass tubing to make chemical apparatus at an unidentified factory. This photograph is one of a set of three stereographs detailing the production of glass tubing and pipettes.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Shover boy shoving cylinder into flattening oven
- After 1895
View of a worker transferring a cylinder of glass into a flattening oven at an unidentified factory. This photograph is one of a set of seven stereographs detailing the production of glass sheets.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Splitting cylinders on splitting bucks ready to flatten
- After 1895
View of a worker splitting cylinders of glass ready to be flattened into glass sheets at an unidentified factory. This photograph is one of a set of seven stereographs detailing the production of glass sheets.
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Capping off a cylinder into flattening lengths with electric capping stick
- After 1895
View of a worker using an electric capping stick to cap off and cut a cylinder of glass into a flattening length at an unidentified factory. This photograph is one of a set of seven stereographs detailing the production…
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
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Taking down cylinder and placing on capping off-horse
- After 1895
View of two workers taking down a cylinder of glass and placing it on a capping-off horse, an apparatus used to transfer cylindrical glass sections, at an unidentified factory. This photograph is one of a set of seven…
- Publisher Underwood & Underwood
- Subject Employees, Glass blowing and working, Manufacturing industries, Glass manufacture
