Stone Channeling Machine Model
date: label: date made
content: 1869
label: patent date
content: 1869-05-18
name: label: inventor
content: Wardwell, George J.
notes: label: Description
content: Patent: US90325
label: Description
content: This stone channeling machine model was patented on 18 May 1869 by George J. Wardwell.
label: Description
content: The invention improved stone‑channeling machinery by using a crankshaft-driven reciprocating gang of chisels, with links and springs to absorb shock and protect the frame. Adjustable crank positions allowed variable stroke or disengagement of a gang, while the crankshaft also powered forward and reverse feed of the carriage. Sturdy forked guides enabled operation close to quarry walls, providing efficient, controlled cutting.
label: Location
content: Currently not on view
place: label: associated place
content: United States: Vermont, Rutland
setName: label: See more items in
content: Work and Industry: Mechanical and Civil Engineering
creditLine: label: Credit Line
content: O. Rundle Gilbert
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MC.336856
label: catalog number
content: 336856
label: patent number
content: 90,325
label: accession number
content: 1978.2318
objectType: label: Object Name
content: patent model, stone channelling machine
physicalDescription: label: Measurements
content: overall: 12 1/4 in x 10 1/4 in x 13 1/4 in; 31.115 cm x 26.035 cm x 33.655 cm
label: Measurements
content: overall: 12 in x 10 1/4 in x 13 3/8 in; 30.48 cm x 26.035 cm x 33.9725 cm