Screw Making Machine Patent Model
date: label: date made
content: 1875
label: patent date
content: 1875-09-28
name: label: inventor
content: Gifford, Albert W.
notes: label: Description
content: This is a patent model (US168150) of a screw making machine, patented on September 28, 1875, by Albert W. Gifford of Worcester, Massachusetts. Gifford’s invention centers around a rotary head equipped with multiple sets of clamping jaws, each intended to hold the blank screw. This rotary head is able to index (rotate) between positions so that multiple screw-making operations can proceed in parallel, thus optimizing speed and efficiency.
label: Location
content: Currently not on view
place: label: place made
content: United States: Massachusetts, Worcester
label: associated place
content: United States: Massachusetts, Worcester
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MC.308819
label: catalog number
content: 308819
label: patent number
content: 168,150
label: accession number
content: 89797
objectType: label: Object Name
content: patent model, screw making machine
physicalDescription: label: Measurements
content: overall: 5 1/2 in x 11 3/8 in x 5 1/8 in; 13.97 cm x 28.8925 cm x 13.0175 cm