Steelyard

Steelyard

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Description
This is a brass steelyard with two hooks. The beam is flat, 10 inches long, and graduated from [2] to 28. The short end is inscribed “S. E. Winslow / Philada.” Winslow explained that his aim here "is the construction of the single axle with double fulcra, for scale beams or other scales, in the manner described."
Ref: Seth E. Winslow, “Balance or Scale-Beam,” U.S. Patent 1,708 (July 31, 1840).
Winslow's claim in The American Repertory of Arts, Sciences, and Manufactures 2 (1841): 154.
Location
Currently not on view
Object Name
Steelyard
Object Type
Patent Model
date made
1840
patented by
Winslow, Seth E.
place made
United States: Pennsylvania, Philadelphia
Measurements
overall: 18.6 cm x 38 cm x 39.5 cm; 7 5/16 in x 14 15/16 in x 15 9/16 in
overall: 15 1/2 in x 4 1/2 in x 1 1/2 in; 39.37 cm x 11.43 cm x 3.81 cm
ID Number
CH.308903
accession number
89797
catalog number
308903
patent number
1,708
subject
Weights & Measures
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History
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