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Casting: Brass disk
Casting: Brass disk

Casting: Brass disk

Date19th Century
Inventory Number2005-1-0195
ClassificationCasting Pattern
Subject
    Maker William Bond and Son fl. 1793 - 1977
    Cultural Region
      Place of Origin
        Material
          DescriptionCasting of a brass disk. From Bond workshop.
          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: Disk
          Casting pattern: Disk
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0151
          Casting pattern: Bevelled disk
          Casting pattern: Bevelled disk
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0150
          Casting pattern: Large ring
          Casting pattern: Large ring
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0148
          Casting pattern from Bond shop
          Casting pattern from Bond shop
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0149
          Casting pattern: Regulator seatboard
          Casting pattern: Regulator seatboard
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0152
          Casting pattern: Large split pillar
          Casting pattern: Large split pillar
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0154
          Casting pattern: Rectangular block
          Casting pattern: Rectangular block
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0155
          Casting pattern: Split pillar
          Casting pattern: Split pillar
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0156
          Casting pattern: Core box for a hollow pillar
          Casting pattern: Core box for a hollow pillar
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0157
          Castings: Brass pendulum parts
          Castings: Brass pendulum parts
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0193
          Casting pattern: Core box for a hollow pillar
          Casting pattern: Core box for a hollow pillar
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0158
          Casting pattern: Core box for a hollow pillar
          Casting pattern: Core box for a hollow pillar
          William Bond and Son
          Date: 19th Century
          Object number: 2005-1-0159