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triple-beam balance
triple-beam balance

triple-beam balance

Datelate 19th-mid 20th Century
Inventory NumberRS1435
ClassificationBalance
Subject
    Maker Central Scientific Company 1889 - 2000
    Cultural Region
      Place of Origin
        Dimensions15 x 14 x 36 cm (5 7/8 x 5 1/2 x 14 3/16 in.)
        Material
          DescriptionA metal beam balance scale by Central Scientific Co. Consists of a white circular plate of enamel or ceramic on which to position objects to be weighed. The plate is supported on a column, connected to a set of three parallel beam arms on which three movable counter weights of various sizes can be positioned. The beam arms are inscribed with scales and their ends extend to an opening in a supporting column, through which they can move up or down.

          Signedengraved on plaque under tray: CENTRAL SCIENTIFIC CO., CHICAGO U.S.A / NEW YORK, BOSTON / TORONTO, LOS ANGELES / U.S. / PATENT / 1526,569 AND 1859,604
          Functionbeam scale for weighing
          triple beam balance
          triple beam balance
          Central Scientific Company
          Date: circa 1929
          Object number: 1988-0001a-c
          analytical balance
          analytical balance
          Keller Manufacturing Company
          Date: 1900-1920
          Accessories: two tweezers; a small box of fractional weights; two colored carboard boxes; a small metallic case; four small cylindrical boxes; a convex circular piece of glass
          Object number: 2004-1-0332
          two pan Roberval balance
          two pan Roberval balance
          Henry Troemner Company
          Date: 1900-1930
          Object number: 1998-1-0092
          single-pan substitution balance
          single-pan substitution balance
          E. Mettler AG
          Date: 1955-1965
          Accessories: instruction manuals
          Object number: 1996-1-0203
          dial reading chainomatic analytical balance
          dial reading chainomatic analytical balance
          Christian Becker, Inc.
          Date: 1930-1940
          Accessories: thin paint brush; small round metal box containing square of metal; thin wire; pans (2)
          Object number: 2006-1-0111
          apothecary balance
          apothecary balance
          German
          Date: 1900-1940
          Object number: 1998-1-0042
          analytical balance
          analytical balance
          F. W. Braun & Company
          Date: circa 1922
          Object number: 2004-1-0333
          Dearborn gold standard balance
          Dearborn gold standard balance
          Henry Plympton
          Date: circa 1835
          Accessories: troy weights (1998-1-0038b); instruction manual (1998-1-0038c)
          Object number: 1998-1-0038a
          part of money balance
          part of money balance
          Bradford, Darby, and Hulls
          Date: circa 1760
          Object number: 1998-1-1429
          Westphal specific gravity balance
          Westphal specific gravity balance
          Scientific Materials Company
          Date: 1902-1925
          Accessories: hook; riders (4); immersion thermometer with hook in wooden holder
          Object number: 3826
          student balance
          student balance
          William Ainsworth & Sons, Inc.
          Date: 1950-1960
          Object number: 2004-1-0306
          Westphal specific gravity balance
          Westphal specific gravity balance
          Fisher Scientific Company
          Date: circa 1963
          Accessories: Reimann thermometer-Plummet, cat. no. 2-155 No 4402 WK missing glass jar (pygnometer?); one rider
          Object number: 1998-1-0090a