Pantograph in Case by William F. Stanley
date: label: date made
content: ca 1890
name: label: maker
content: Stanley, William Ford
notes: label: Description
content: This instrument consists of four hollow brass bars with square cross section. Two bars (labeled B and C) are about twenty-four inches long, the other two (the front one labeled D) are about twelve inches long. The two long bars are joined on their left ends. The two shorter bars are joined at their right ends. One short bar also is screwed to each of the longer bars. The bars move on five casters attached to them.
label: Description
content: The long bar (B) and the short bar (D) toward the front of the instrument both have scales that run from 1/2 to ¾ and then from 2/5 to 1/10. These two bars also each have a sliding head upon them. The front one attaches to a heavy black triangular weight stored in the case. Bars C and D hold the tracer and pencil point (or conversely). A mark on one of the bars reads: STANLEY, LONDON.
label: Description
content: Not all of the pieces of this pantograph have survived.
label: Description
content: The instrument fits into a wooden case.
label: Description
content: For a detailed discussion, see Stanley.
label: Description
content: The owner of this instrument wa probably the civil engineer Llewellyn Nathaniel Edwards (1873-1952).
label: Description
content: Reference:
label: Description
content: W. F. Stanley, <I>Mathematical and Drawing Instruments</I>, 6th ed. (London, 1888), pp. 120-131.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Pantographs
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Mrs. Llewellyn N. Edwards
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.325674
label: accession number
content: 257193
label: catalog number
content: 325674
objectType: label: Object Name
content: Pantograph
physicalDescription: label: Physical Description
content: brass (overall material)
label: Physical Description
content: hardwood (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 4 1/8 in x 27 3/8 in x 4 1/8 in; 10.4775 cm x 69.5325 cm x 10.4775 cm