Hotchkiss Superdip Needle
notes: label: Description
content: William Otis Hotchkiss (1878-1954), leader of the team that invented the Hotchkiss Super Dip Needle, was State Geologist of Wisconsin, president of Michigan Technological University, and then president of the Rensselaer Polytechnic Institute.
label: Description
content: Ref: William O. Hotchkiss, Henry R. Aldrich, Noel H. Stearn, and John F. Foerst, “Physical Instrument,” U.S. Patent 1,702,868 (Feb. 19, 1929), assigned to W. C. McBride, Inc.
label: Description
content: Noel H. Stearn, “Practical Geomagnetic Exploration with the Hotchkiss Superdip,” American Institute of Mining and Metallurgical Engineers, Technical Publication 370 (1930): 169-199.
label: Description
content: “William Hotchkiss, R.P.I. Ex-President,” New York Times (June 21, 1954), p. 23.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: Edwin L. Hotchkiss
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1981.0488.01
label: catalog number
content: 1981.0488.01
label: accession number
content: 1981.0488
objectType: label: Object Name
content: dip needle
physicalDescription: label: Measurements
content: case: 2 in x 5 in; 5.08 cm x 12.7 cm
label: Measurements
content: overall: 5 3/4 in x 5 5/16 in x 2 1/8 in; 14.605 cm x 13.49375 cm x 5.3975 cm
label: Measurements
content: overall; small case: 6 11/16 in x 8 in x 3 in; 16.98625 cm x 20.32 cm x 7.62 cm
label: Measurements
content: overall; large case: 7 5/8 in x 10 7/8 in x 8 1/2 in; 19.3675 cm x 27.6225 cm x 21.59 cm