Casting pattern: Host chronograph drum end
Date19th Century
Inventory Number2005-1-0077
ClassificationCasting Pattern
Subject
Maker
William Bond and Son
fl. 1793 - 1977
Cultural Region
Place of Origin
Material
DescriptionWood casting pattern for a host chronograph drum end. Listed in the "Chronographs" section of the original Bond Pattern inventory (1988). The outer edge of the object is damaged and there is a signifcant crack across its diameter.
There is a very faint inscription on one side of the drum apparently done in red crayon or wax pencil. On the reverse there is another description in the same medium that begins "2. . .".
There is a very faint inscription on one side of the drum apparently done in red crayon or wax pencil. On the reverse there is another description in the same medium that begins "2. . .".
Signedunsigned
Inscribedin red crayon on drum: 2 Yellow Brass
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: 2005-1-0052
William Bond and Son
Date: 19th Century
Object number: 2005-1-0058
William Bond and Son
Date: 19th Century
Object number: 2005-1-0055
William Bond and Son
Date: 19th Century
Object number: 2005-1-0060
William Bond and Son
Date: 19th Century
Object number: 2005-1-0057
William Bond and Son
Date: 19th Century
Object number: 2005-1-0056
William Bond and Son
Date: 19th Century
Object number: 2005-1-0059
William Bond and Son
Date: 19th Century
Object number: 2005-1-0062
William Bond and Son
Date: 19th Century
Object number: 2005-1-0068
William Bond and Son
Date: 19th Century
Object number: 2005-1-0071
William Bond and Son
Date: 19th Century
Object number: 2005-1-0072
William Bond and Son
Date: 19th Century
Object number: 2005-1-0075