Search Results

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  3 items
  Rare books, Engravings

  Plate 151: Bridge for crossing a very deep river

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Bridge composed of boats, positioned with oars, anchored in place, and connected by unfolding doubled-over bridge sections. See Plate 150 for the transportation of components of bridge by horse.

  Monogrammed "JG" on…

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Movable bridges, Military bridges, Bridges, Machinery
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  Rare books, Engravings

  Plate 150: Section of a bridge transported by horse

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  See Plate 151 for the assembly of this bridge.

  Monogrammed "JG" on rock at lower left.

  Mechanics: winch.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Movable bridges, Military bridges, Bridges, Machinery
• 
  Photographs

  Beckman Immunochemistry Analyzer

  • After 1977

  Beckman Instruments debuted an Immunochemistry Analyzer in 1977 and an Auto ICS (Immunochemistry System) in 1980.

  • Photographer Karjalas' Photo Vision
  • Subject Immunochemistry, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  3 items
  Rare books, Engravings

  Plates 148 & 149: Bridge for crossing a river with shallow water

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Bridge with retracting sections, supported in the water by legs.

  Mechanics: winch; roller guides.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Movable bridges, Military bridges, Bridges, Machinery
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  3 items
  Rare books, Engravings

  Plate 147: Bridge for crossing a city or fortress water moat

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Bridge sections composed of trapezoidal prisms are transported rolled up. Unrolled, the sections are connected together with hinges, and the bridge floats on the water.

  Mechanics: winch; ratchet; projectile throwing…

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Movable bridges, Military bridges, Bridges, Machinery
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  Photographs

  Beckman Model CP Constant Flow Paper Electrophoresis Cell, Fraction Collector, and Constat power supply

  • Undated

  Electrophoresis uses an electric field to separate particles in a medium (like a gel) based on their size, charge, or a binding affinity.

  • Photographer Hesketh, Dean D.
  • Subject Electrophoresis, Scientific apparatus and instruments, Paper electrophoresis, Electrophoresis--Equipment and supplies, Beckman Instruments, Inc.
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  Photographs

  Infotronics Model CRS-100 Integrator

  • Undated

  Houston, Texas-based Infotronics introduced the CRS-100 in 1967.

  • Photographer Hesketh, Dean D.
  • Subject Scientific apparatus and instruments, Integrators, Beckman Instruments, Inc.
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  Rare books, Engravings

  Plate 146: Bridge for crossing a city or fortress water moat

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  This machine uses the principle of Nürnberg scissors, which are also known as Narrenschere (fool's scissors).

  Mechanics: winch; Nürnberg scissors.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Movable bridges, Military bridges, Bridges, Machinery
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  3 items
  Rare books, Engravings

  Plate 145: Bridge for crossing a city or fortress moat

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Bridge with retracting sections.

  Mechanics: capstan bars; winch; lantern and rack; roller guides.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Movable bridges, Military bridges, Bridges, Machinery
• 
  Photographs

  Beckman/Spinco Model 120B Amino Acid Analyzer

  • Undated

  First marketed in 1960, the Beckman/Spinco Model 120 Amino Acid Analyzer used the Spackman-Stein-Moore technique of amino acid chromatography.

  • Photographer Hesketh, Dean D.
  • Subject Medical laboratories--Equipment and supplies, Beckman Instruments, Inc. Spinco Division, Scientific apparatus and instruments, Amino acids--Analysis, Beckman Instruments, Inc.
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  Rare books, Engravings

  Plate 172: Crane for lifting heavy weights

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Mechanics: hand crank; spur gear and lantern; worm and worm gear; lantern and crown gear; flywheel; lewis.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Cranes, derricks, etc., Machinery
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  Photographs

  Spinco Model 160 Physiological Gas Analyzer

  • Undated

  • Photographer Hesketh, Dean D.
  • Subject Beckman Instruments, Inc. Spinco Division, Gases--Analysis, Scientific apparatus and instruments, Medical electronics, Beckman Instruments, Inc.
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  Rare books, Engravings

  Plate 171: Crane for lifting heavy weights

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Especially useful in the construction of large buildings.

  Mechanics: hand crank; worm and worm gear; lantern and crown gear; rope drive; flywheel.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Cranes, derricks, etc., Machinery
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  Photographs

  Beckman Model LB-1 Medical Gas Analyzer

  • Undated

  • Photographer Hesketh, Dean D.
  • Subject Medical laboratories--Equipment and supplies, Beckman Instruments, Inc. Spinco Division, Gases--Analysis, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Rare books, Engravings

  Plate 170: Crane for lifting heavy weights

  • Part of Le diverse et artificiose machine del capitano Agostino Ramelli

  • 1588

  Mechanics: internal vertical treadwheel; spur gear and lantern; worm and worm gear.

  • Author Ramelli, Agostino, 1531-approximately 1600
  • Subject Cranes, derricks, etc., Machinery
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  Photographs

  Beckman Model 24 spectrophotometer with vacuum control and printer

  • 1970s

  Beckman's Model 24 was a double-beam visible light spectrophotometer.

  • Photographer Photomation
  • Subject Scientific apparatus and instruments, Spectrophotometer, Optical spectroscopy, Beckman Instruments, Inc.
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  Photographs

  Beckman Model DU spectrophotometer with vacuum control and printer

  • Undated

  The first Beckman Instruments DU Spectrophotometer was developed in 1940, when the company was still called National Technical Laboratories. Spurred by employee Howard Cary (who had previously been involved in pH meter…

  • Photographer Photographers III
  • Subject Ultraviolet spectroscopy, Scientific apparatus and instruments, Spectrophotometer, Beckman Instruments, Inc.
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  Photographs

  Beckman Acculab 6 Spectrophotometer with open sample compartment

  • 1973 – 1982

  The Beckman Instruments IR spectrophotometers began as a request from the Office of Rubber Reserve to Arnold O. Beckman in 1942, asking for an infrared spectrophotometer that they could use to create rubber. Under this…

  • Photographer Hesketh, Dean D.
  • Subject Scientific apparatus and instruments, Spectrophotometer, Infrared spectroscopy, Beckman Instruments, Inc.
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  Photographs

  Man using a Beckman Model 915 Total Organic Carbon Analyzer

  • Circa 1968

  • Photographer Hesketh, Dean D.
  • Subject Scientific apparatus and instruments, Carbon--Analysis, Beckman Instruments, Inc.
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  Photographs

  Beckman Model 915 Total Organic Carbon Analyzer with drawer retracted

  • Circa 1968

  The Model 915 converted samples to carbon dioxide and used a non-dispersive infrared analyzer to determine the total carbon and inorganic carbon. Organic carbon was determined as the difference between those values.

  • Photographer Hesketh, Dean D.
  • Subject Scientific apparatus and instruments, Carbon--Analysis, Beckman Instruments, Inc.
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  Photographs

  Beckman Model 915 Total Organic Carbon Analyzer with drawer pulled out

  • Circa 1968

  The Model 915 converted samples to carbon dioxide and used a non-dispersive infrared analyzer to determine the total carbon and inorganic carbon. Organic carbon was determined as the difference between those values.

  • Photographer Hesketh, Dean D.
  • Subject Scientific apparatus and instruments, Carbon--Analysis, Beckman Instruments, Inc.
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  Photographs

  Man using a Total Hydrocarbon Analyzer beside a car

  • Undated

  Beckman Instruments, Inc. became interested in measuring, controlling, and fighting air pollution in the late 1940s and early 1950s, when company president Arnold O. Beckman became the scientific adviser to the Los…

  • Photographer Dietrich, T. A.
  • Subject Automobiles--Motors--Exhaust gas, Scientific apparatus and instruments, Hydrocarbons, Hydrocarbons--Environmental aspects, Air quality management, Beckman Instruments, Inc.
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  Photographs

  Beckman Model 900 pH Analyzer (Interior)

  • Circa 1969

  Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…

  • Photographer Armstrong & Hess
  • Subject Hydrogen-ion concentration--Measurements--Instruments, Scientific apparatus and instruments, Beckman Instruments, Inc.
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  Photographs

  Operator adjusting a dial on Beckman Auto Exhaust Total Hydrocarbon Analyzer

  • Undated

  Beckman Instruments, Inc. became interested in measuring, controlling, and fighting air pollution in the late 1940s and early 1950s, when company president Arnold O. Beckman became the scientific adviser to the Los…

  • Photographer Dietrich, T. A.
  • Subject Scientific apparatus and instruments, Hydrocarbons--Environmental aspects, Motor vehicles--Pollution control devices, Automobiles--Motors--Exhaust gas--Measurement, Beckman Instruments, Inc., Air--Pollution--Measurement
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  Photographs

  Beckman Model 900 pH Analyzer (Part)

  • Circa 1969

  Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who needed an accurate way to measure the acidity of his product. The resulting instrument kicked off…

  • Photographer Armstrong & Hess
  • Subject Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Hydrogen-ion concentration, Beckman Instruments, Inc.