Casting patterns: Wheel collet blanks
Date19th Century
Inventory Number2005-1-0105
ClassificationCasting Pattern
Subject
Maker
William Bond and Son
fl. 1793 - 1977
Cultural Region
Place of Origin
Material
DescriptionTwo wood strips of wheel collet blanks, with six collets per strip.
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.
William Bond and Son
Date: 19th Century
Object number: 2005-1-0104
William Bond and Son
Date: 19th Century
Object number: 2005-1-0086
William Bond and Son
Date: 19th Century
Object number: 2005-1-0109
William Bond and Son
Date: circa 1867
Object number: 2005-1-0092
William Bond and Son
Date: 19th Century
Object number: 2005-1-0059
William Bond and Son
Date: 19th Century
Object number: 2005-1-0063
William Bond and Son
Date: 19th Century
Object number: 2005-1-0052
William Bond and Son
Date: 19th Century
Object number: 2005-1-0055
William Bond and Son
Date: 19th Century
Object number: 2005-1-0097
William Bond and Son
Date: 19th Century
Object number: 2005-1-0045