Pantograph in Case by Cary of London
date: label: date made
content: from 1789
label: date made
content: 1789-1891
name: label: maker
content: Cary, William
notes: label: Description
content: This brass pantograph consists of four linked rods with rectangular cross section. The two longer rods are about 49.5 cm. (19 ½ inches) long. The two shorter rods are about 9 inches and ten inches long. Marks near the ends of the rods away from the fulcrum read: B; D; [nothing]; C. Two adjacent rods (those marked B and D) are marked from 11:12 to 2:3 near one end and from 1:2 to 1:12 further up. Slides on these rods carry round holders. A round stone disc placed into the fixed outermost holder anchors the pantograph. A tube with a cup at one end fits into either of the two remaining round holders (the tube would hold a pencil point; the cup would hold pebbles, shot, or some other weight to keep the pencil on the paper). The tracer point which would go in the other holder is missing. The pantograph moves over the paper on four ivory wheels. A mark on the top of one arm reads: Cary London. The instrument fits in a shaped wooden case.
label: Description
content: According to Gloria Clifton, from 1789 until 1891 William Cary, his descendants, and their associates in London sold instruments, including a pantograph, under the name Cary.
label: Description
content: This instrument was once at the Museum of Science and Industry in Chicago.
label: Description
content: Compare MA.317868, MA.327891, MA.334888, and 2005.0182.8.
label: Description
content: Reference:
label: Description
content: Gloria Clifton, <I>Directory of British Scientific Instrument Makers 1550-1851</I>, Zwemmer, 1995, p. 51.
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 Museum of Science and Industry
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.327891
label: accession number
content: 271855
label: catalog number
content: 327891
objectType: label: Object Name
content: Pantograph
physicalDescription: label: Physical Description
content: stone (overall material)
label: Physical Description
content: brass (overall material)
label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: 9.6 cm x 53.5 cm x 14 cm; 3 25/32 in x 21 1/16 in x 5 1/2 in