Indexing Mechanism for a Burroughs Class 7 Bookkeeping Machine
date: label: date made
content: ca 1935
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: This model has a metal mechanism at the back and a wide carriage in front of this. In front of the carriage is a typewriter keyboard and space bar, and in front of these are two rows of white keys. The keys at the front include one set of digit keys and various function keys. The paper in the carriage has numbers printed sideways.
label: Description
content: Toward the front of the machine, behind the typewriter keyboard, is a paper dial, under clear plastic, that has various phrases typed on it (e.g. “TOTAL CF”, “TRANSFER CF2-CF1”). Behind the carriage are three sets of rods on the top of the machine. To the right is a large cylinder mounted horizontally, with several toothed cylinders on it. The machine has no case. Mounted vertically at the back is a large thin disk with various holes in it. A small package of parts was received with the machine.
label: Description
content: A red tag attached to the machine reads: PATENT DEPT. (/) #32. A metal tag attached to the bottom at the base reads: B.A.M.CO. (/) MODEL (/) [. . .]. A white tag attached to the machine reads: NOTICE (/) This machine to be preserved as a (/) model until at least 1958 for possible (/) use in any litigation or controversy which (/) may develop in connection with the feature (/) Sensing Controls (/) J. E. McVay (/) 7/25/38. Another white tag attached to the machine reads: U.S. PATENT OFFICE (/) MUELER (/) VS. CROSMAN (/) Intf. No. 72784 (/) MUELER EXH. No. 4 (/) B. Frank Whiberg (/) Notary Public.
label: Location
content: Currently not on view
place: label: place made
content: United States: Michigan, Detroit
topic: label: Subject
content: Mathematics
label: Subject
content: Business
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Bookkeeping Machines
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Burroughs Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0794.02
label: catalog number
content: 1982.0794.02
label: accession number
content: 1982.0794
objectType: label: Object Name
content: calculating machine mechanism
label: Object Name
content: bookkeeping machine mechanism
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: 35 cm x 72.5 cm x 64 cm; 13 25/32 in x 28 17/32 in x 25 3/16 in