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Genre Charts, diagrams, etc Remove constraint Genre: Charts, diagrams, etc

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    • Dwg. No. 662-000740
    • 1949-Feb-08

    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…

    • 1949-Mar-08

    Patent #2,463,743 for a hydrogen tube designed by H. Howard Cary and Warren Baxter during their time at National Technical Labs, a precursor to Beckman Instruments. This tube was designed for use in UV…

    • Dwg. No. 18617
    • 1957-Apr-22

    This oxygen electrode was first used inside Beckman Instruments pH meters and later in many other instruments.

    • 1652 (MDCLII)

    Engraved diagram from George Ripley's The Compound of Alchymie. Known as Ripley's Wheel, the drawing depicts concentric planetary spheres along with his alchemical recipes.

    • 1810

    The first 16 figures represent the atoms of different elastic fluids, drawn in squares of different magnitude in proportion to the diameters of the atoms.
    Fig. 17 exhibits curve lines by which the boiling point of…

    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements designed as a right-side electronic configuration series table. While the design of this table is unattributed, it bears some similarity to Subtype…

    • circa 1957 (Date attributed to slide)
    • 1863 (Original design)

    Top and perspective views of a graphic representation of the periodic table of chemical elements depicted as a helix drawn on a single cylinder. This table was originated by French geologist and mineralogist…

    • 1955 (Original design)
    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements designed as a left-step series table with the symbols of the elements arranged according to their valences. This table was originated by chemist Edward…

    • circa 1957 (Date attributed to slide)
    • 1955 (Original design)

    Partial graphic representation of the periodic table of chemical elements designed as a left-step series table with the symbols of the elements arranged according to their valences. The section displayed here depicts…

    • 1955 (Original design)
    • circa 1957 (Date attributed to slide)

    Partial graphic representation of the periodic table of chemical elements designed as a left-step series table with the symbols of the elements arranged according to their valences. The section displayed here depicts…

    • 1905 (Original design)
    • circa 1957 (Date attributed to slide)

    Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a helix and space lemniscate with two additional loops for the rare earth elements. This table was…

    • 1900 (Original design)
    • circa 1957 (Date attributed to slide)

    Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a helix and space lemniscate with an additional loop for the rare earth elements. This table was…

    • 1916 (Original design)
    • circa 1957 (Date attributed to slide)

    Top and perspective views of a graphic representation of the periodic table of chemical elements designed in the style of a helix wound on three main stepwise cylinders placed laterally with a common generating line at…

    • 1935 (Original design)
    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements as an Archimedes spiral with a single revolution. This table was originated by Nicolas Opolonick in 1935 and classified by chemist Edward G. Mazurs as…

    • circa 1957

    Graphic representation of the periodic table of chemical elements designed as a series table consisting of two parts that are arranged like mirror-images of one another. While the design of this table is unattributed,…

    • 1898 (Original design)
    • circa 1957 (Date attributed to slide)

    Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a space lemniscate. This table was originated by British chemist and physicist Sir William Crookes…

    • 1892 (Original design)
    • circa 1957 (Date attributed to slide)

    Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a helix with three sizes of revolutions. This table was originated by Henry Bassett in 1892 and classified…

    • 1918 (Original design)
    • circa 1957 (Date attributed to slide)

    Top and perspective views of a graphic representation of the periodic table of chemical elements in the style of a helix with three sizes of revolutions for eight representative, ten transitional, and fourteen rare…

    • circa 1957 (Date attributed to slide)
    • 1926 (Original design)

    Graphic representation of the periodic table of chemical elements designed as a right-side electronic configuration series table symmetrical about a horizontal line. This table was originated by Italian chemists Luigi…

    • circa 1957 (Date attributed to slide)

    Two graphic representations of the periodic table of chemical elements depicted as a spiral with eight radii. While the design of these tables is unattributed, it bears some similarity to Types IB2-2, IB2-4, and IB2-5…

    • circa 1957 (Date attributed to slide)
    • 1938 (Original design)

    Graphic representation of the periodic table of chemical elements in the style of parallel lines, with the single lines representing subshells and the groups of parallel lines representing different shells. This table…

    • 1941 (Original design)
    • circa 1957 (Date attributed to slide)

    Graphic representation of the periodic table of chemical elements in the style of concentric circles on a plane. This table was originated by L. Sibaiya in 1941 and classified by chemist Edward G. Mazurs as Type IIIB4-3…