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lifting magnet (upper half)
lifting magnet (upper half)

lifting magnet (upper half)

Date1910-1940
Inventory Number1997-1-0162a
ClassificationMagnet
Subject
    Cultural Region
      Place of Origin
        Dimensions7.3 × 7.6 × 7.7 cm (2 7/8 × 3 × 3 1/16 in.)
        Material
          DescriptionThe base of this object is a stout black cylinder with a rounded upper edge. From the center of the cylinder's top side emerges a smaller cylinder, also black; this cylinder has a large circular hole in the middle and a tightening screw runs through its rounded top. On either side of this smaller cylinder are two identical binding posts. Each features a thick ribbed cylinder fastened onto a screw, threaded end upright.
          Signedunsigned
          Curatorial RemarksLower half is catalogued under 1997-1-0162b.
          FunctionTogether, the parts of this electromagnet were designed to lift heavy objects.
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          lifting magnet (lower section with hook)
          Central Scientific Company
          Date: 1910-1940
          Object number: 1997-1-0162b
          viscosity tester
          W.G. Pye & Company, Ltd.
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          cardioscope
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          spark timer
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          Object number: 1997-1-0308
          adjustable electric motor
          The W. M. Welch Scientific Company
          Date: 1910-1940
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          internal combustion single cylinder engine
          French
          Date: 1850-1900
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          Emory Leon Chaffee
          Date: 1910-1911
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          American
          Date: 1870-1890
          Object number: 1996-1-0269
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          Underwater Sound Laboratory, Harvard University
          Date: 1941-1949
          Object number: 1997-1-2061a
          transducer ?
          Underwater Sound Laboratory, Harvard University
          Date: 1941-1949
          Object number: 1997-1-2061b