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Casting pattern for Bond Regulator No. 312
Casting pattern for Bond Regulator No. 312

Casting pattern for Bond Regulator No. 312

Datecirca 1861
Inventory Number2005-1-0123
ClassificationCasting Pattern
Subject
    Maker William Bond and Son fl. 1793 - 1977
    Cultural Region
      Place of Origin
        Material
          DescriptionTwo-part column-like wood casting pattern for a part of Bond Regulator No. 312.
          Signedunsigned
          FunctionBefore sand casting an instrument part from brass or other metal, a foundry pattern is made from wood or metal. The pattern is a replica of the part to be cast. The pattern is pressed into sand, creating a cavity into which the molten metal will be poured.
          ProvenanceWilliam B. Osgood, gift to CHSI, 1959.
          Historical AttributesThese foundry patterns came from the workshop of William Bond & Son. Some of the patterns are associated with astronomical regulators and instruments used at the Harvard College Observatory. These instruments are currently in the Harvard Collection of Historical Scientific Instruments.
          Casting pattern: Bridge for escapement for Bond regulator no. 312
          William Bond and Son
          Date: circa 1861
          Object number: 2005-1-0122
          Casting pattern for Bond Regulator No. 312
          William Bond and Son
          Date: circa 1861
          Object number: 2005-1-0121
          Casting patterns: Weights for Bond regulators No. 394, 395, 396.
          William Bond and Son
          Date: circa 1867
          Object number: 2005-1-0092
          Casting pattern: Seatboard for Bond regulator No. 137
          William Bond and Son
          Date: circa 1855
          Object number: 2005-1-0090
          Casting pattern for Bond Regulator No. 370
          William Bond and Son
          Date: circa 1880
          Object number: 2005-1-0131
          Casting pattern for a part for Bond Regulators No. 394, 395 & 396
          William Bond and Son
          Date: circa 1867
          Object number: 2005-1-0132
          Casting pattern: L-bracket for Bond regulators 394, 395, 396
          William Bond and Son
          Date: circa 1867
          Object number: 2005-1-0114
          Casting pattern: Upper motion work pillar for Bond regulator no. 394
          William Bond and Son
          Date: circa 1867
          Object number: 2005-1-0116
          Casting pattern: Movement pillar for Bond regulators nos. 394, 395, 396
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0117
          Casting pattern: Barrel bushing for Bond regulators nos. 394, 395, 396
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0119