Triumphator Calculating Machine
date: label: date made
content: ca 1905
notes: label: Description
content: This lever-set pinwheel non-printing calculating machine has a steel frame painted black with eight metal pinwheels and a wooden base. Rotating the pinwheels forward using levers that extend from the wheels sets a number. No digits are inscribed on the frame next to the rotating pinwheels to show the entry, but these digits do appear in a row of windows above the pinwheels. Rotating a wing nut on the left side zeros the entry register.
label: Description
content: The carriage at the front of the machine has ten windows for the revolution counter on the left and 18 windows for the result register on the right. Wing nuts at opposite ends of the carriage rotate to zero these registers. To release the carriage, one pushes down a lever at the front. A crank with a wooden knob on the right side of the machine rotates clockwise for addition and multiplication and counterclockwise for subtraction and division. The revolution register and the result register have one sliding decimal marker each. The revolution register on this machine has no carry.
label: Description
content: A mark on the top of the machine reads: No 464. A mark on the front (with quotation marks after the German style) reads: “Patent” (/) Rechenmaschine (/) Triumphator. A mark on the back reads: Sole Manufacturers (/) Leipziger Röhrenwerke G.m.b.H. (/)Leipzig-Lindenau (/) Aurellenstr. 56 (/) PATENTED.
label: Description
content: The machine is from the collection of Felt & Tarrant Manufacturing Company. The Triumphator was manufactured in Leipzig, Germany, from about 1904.
label: Description
content: Reference:
label: Description
content: E. Martin, <I>The Calculating Machines (Die Rechenmaschinen)</I>, trans. P. A. Kidwell and M. R. Williams, Cambridge: MIT Press, 1992, pp. 144–146.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Saxony, Leipzig
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Calculating Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Victor Comptometer Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.323655
label: catalog number
content: 323655
label: accession number
content: 250163
label: maker number
content: 464
objectType: label: Object Name
content: calculating machine
physicalDescription: label: Physical Description
content: brass (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: 17.3 cm x 54 cm x 24 cm; 6 13/16 in x 21 1/4 in x 9 7/16 in