Search Results

• 
  Illustrations

  Diagram of special demountable reference electrodes

  • 1952-Jul-18

  The illustration depicts glass electrodes that could be used with the Beckman Model G pH meter.

  Arnold Beckman invented his first pH meter in 1934 at the request of a chemist from the California citrus industry, who…

  • Subject Electrodes, Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Hydrogen-ion concentration, Beckman Instruments, Inc.
• 
  Business correspondence

  Memo from George D. Butler to R. Pat Connor

  • Difficulties with Blue Tip Electrodes at Eastman Kodak

  • 1952-Jul-22

  The memo discusses issues affecting the electrodes used with a Model G pH meter, possible actions, and the risk of losing Kodak's business to a competitor such as Leeds & Northrup.

  • Addressee Connor, R. Pat
  • Author Butler, George D.
  • Subject Electrodes, Eastman Kodak Company, Hydrogen-ion concentration--Measurement--Instruments, Scientific apparatus and instruments, Hydrogen-ion concentration, Beckman Instruments, Inc., Leeds and Northrup Company
• 

  7 items
  Photographs

  Beckman Facilities, Fullerton Plant

  • Undated
  • 1943
  • 1953
  • 1955

  In 1954, Beckman Instruments' headquarters moved from Pasadena to Fullerton, California.

  Some photos are undated, but the ones with dates were taken between 1943 and 1953. Several have a photographer's stamp on the…

  • Photographer Preston E. Mitchell Commercial Photography
  • Subject Factories, Buildings, Employees, Construction projects, Portraits, Group, Beckman Instruments, Inc.
• 

  23 items
  Photographs

  Beckman Spinco Division Model E Centrifuge

  • Undated
  • 1950s
  • 1963-Oct

  Beckman Instruments began producing centrifuges after their January 1, 1955 acquisition of industry leader, Specialized Instruments Corporation, or Spinco. With Spinco came the famous Model E Ultracentrifuge, which was…

  • Photographer Shapero, Don, Wallin Photo, Illig, Russell
  • Subject Medical laboratories--Equipment and supplies, Beckman Instruments, Inc. Spinco Division, Scientific apparatus and instruments, Centrifuges, Beckman Instruments, Inc.
• 

  15 items
  Photographs

  Arnold Beckman with others

  • Undated
  • 1953
  • 1955-Sep-15
  • 1957-Oct-11
  • 1961-Jan
  • 1982
  • 1987-Mar-23

  The photographs depict Arnold Beckman at a variety of meetings and events. Identified individuals include Arnold Beckman, P. Dodds, V. Rossetti, Robert T. Sheen, W. G. Brombacher, Taylor Fletcher, Jack Bishop, William…

  • Photographer Fontayne Studios, Frey Photos, Isaacs, Robert A., Wallace, Maurice R., Rothschild Photo
  • Subject Beckman, Arnold O., Ballhaus, William F., 1918-, Dinners and dining, Executives, Hewlett, William R., Award presentations, Portraits, Group, Meetings
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  5 items
  Photographs

  Beckman Model D2 Oxygen Analyser

  • 1950s

  Note the spelling, "Analyser" as opposed to "Analyzer," which may be seen on other D2 units.

  Developed from a Linus Pauling design during WWII, the technology behind Beckman Instruments’ oxygen analyzers ended up doing…

  • Subject Scientific apparatus and instruments, Oxygen--Measurement, Oxygen--Analysis, Beckman Instruments, Inc.
• 
  Photographs

  Duodial installation on Model A potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Passive components, Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 201 Digidial

  • 1950 – 1969

  • Photographer Dietrich, T. A.
  • Subject Passive components, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Delamo Victor Motor

  • 1950 – 1969

  • Photographer Dietrich, T. A.
  • Subject Electric motors, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 205 Digidial Turnscounting Dial

  • 1950 – 1969

  • Photographer Armstrong & Hess
  • Subject Passive components, Beckman Instruments, Inc.
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  Photographs

  Helipot Series 433 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 473 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Series 431 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 421 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 483 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 9320 Potentiometer with Tartan Backdrop

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc., Tartans
• 
  Photographs

  Beckman Model 481 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Beckman Model 471 Rectilinear Cermet Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Model 1799-48 Current Sensor

  • 1950 – 1969

  • Photographer Dietrich, T. A.
  • Subject Detectors, Electric currents, Beckman Instruments, Inc.
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  Photographs

  Helipot Remote Control Servo Package

  • 1950 – 1969

  • Photographer Dietrich, T. A.
  • Subject Servomechanisms, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Module

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot DC Tachometer

  • 1950 – 1969

  Tachometers measure the working speed of an engine by counting the number of revolutions per minute.

  • Photographer Armstrong & Hess
  • Subject Tachometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Special Motor Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Dietrich, T. A.
  • Subject Potentiometer, Beckman Instruments, Inc.
• 
  Photographs

  Helipot Liquid-Filled 4200 Series Potentiometer, Model 4203

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Harmon, Larry
  • Subject Potentiometer, Beckman Instruments, Inc.
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  Photographs

  Helipot Model 9151 Capstan Motor Potentiometer

  • 1950 – 1969

  Potentiometers regulate the flow of electricity, like the volume dial on a radio. In 1940, Arnold O. Beckman was unsatisfied with dials on the market, so he designed his own helical potentiometers, or helipots, for use…

  • Photographer Armstrong & Hess
  • Subject Potentiometer, Beckman Instruments, Inc.