Tim III Calculating Machine
date: label: date made
content: ca 1911
name: label: maker
content: Ludwig Spitz & Co.
notes: label: Description
content: This German stepped drum, manually operated non-printing calculating machine has a brass and iron case painted black. The eight digit setting levers link to both number dials and brass stepped drums. The number dials record digits entered. Levers in front of the dials zero the entry. An addition & multiplication / subtraction & division lever is on the left, and an operating crank on the right. The plate at the front is easily removed to show the levers and bell. The bell rings when the result changes sign (as in overdivision).
label: Description
content: In back of the levers is the carriage, with nine revolution register dials and 16 result register dials. Both these registers can be set by hand. The revolution register dials have numbers in black (0 to 9) and in red (1 to 8). The zeroing bars for these registers are on the right of the carriage, and a knob for lifting the carriage is on its far left.
label: Description
content: The machine has a metal tag attached to the front that reads: Ludwig Spitz & Co. G.m.b.H. (/) TIM (/) TIME IS MONEY (/) TRADE MARK. It also reads: TIM Calculating Machine Co (/) Chicago U.S.A. It is marked to the left of the entry levers: PATENT. A mark under the carriage on the right side reads: 03745. A mark under the carriage on the left side reads: 2549.
label: Description
content: This model of the TIM was introduced in about 1909 and sold at least through 1924. This example was transferred to the Smithsonian collections from the Navy Memorial Museum at the Washington Navy Yard.
label: Description
content: References:
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. 191–194.
label: Description
content: J. H. McCarthy, <I>The American Digest of Business Machines</I>, Chicago: American Exchange Service, 1924, pp. 84–85. By this time, the American agent for the TIM calculating machine was the Times Into Company of Chicago, Illinois.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Berlin, Berlin
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: Transfer from US Navy Memorial Museum
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0602.01
label: catalog number
content: 1979.0602.01
label: accession number
content: 1979.0602
label: maker number
content: 03745
objectType: label: Object Name
content: calculating machine
physicalDescription: label: Physical Description
content: steel (overall material)
label: Physical Description
content: brass (overall material)
label: Physical Description
content: rubber (overall material)
label: Physical Description
content: german silver (overall material)
label: Physical Description
content: iron (overall material)
label: Measurements
content: overall: 17 cm x 54.5 cm x 15 cm; 6 11/16 in x 21 15/32 in x 5 29/32 in