L. Lumley & Co. Gauger's Slide Rule
date: label: date made
content: 1884-1929
name: label: maker
content: L. Lumley & Company Limited
notes: label: Description
content: This yew rule has straight brass ends and two slides, which fit between the three parts of the base. On one side, the top scale on the base (labeled A), the two scales on the upper slide (labeled E), the first scale in the middle of the base (labeled D), and the two scales on the second scale (labeled B and C) are identical logarithmic scales that run from 1 to 10 twice in the length of the rule. The second scale in the middle runs from 1 to 100 and is labeled SEG<sup>T</sup> S<sup>T</sup> (segments standing). The lowest scale on the base is labeled SEG<sup>T</sup> L<sup>Y</sup> (segments lying).
label: Description
content: These scales are used with the slides to find the volume of the liquid in a cask that is not full, either when it is standing on its base or lying horizontally. The ImB and ImG points, for just over 2200 cubic inches in an imperial bushel and 277.42 cubic inches in an imperial gallon, are marked on the A scale. On the D scale, point 18.95 is marked IG for the diameter of a cylinder containing one imperial gallon; point 46.3 is marked MS, for the side of a square vessel that contains one solid bushel per inch of depth; and point 52.32 is marked MR, for the side of a square vessel that contains one malt bushel per inch of depth.
label: Description
content: The reverse side of the rule has a scale on the base labeled A that runs logarithmically from 1 to 10. Both slides have identical scales (the one on the upper slide is labeled C) that run from over 80 (UNDER PROOF) down to 0 (PROOF) and then up to 70 (OVER PROOF). The middle of the base has a scale labeled B that runs logarithmically from 4 to 40 and a scale labeled C that runs logarithmically from 300 to 30. The bottom of the base has a scale, also labeled C, that runs logarithmically from 100 to 10. There is no indicator.
label: Description
content: One edge of the instrument has a scale labeled SPH<sup>D</sup> and a scale labeled 2<sup>ND</sup> VARIETY. These scales are for determining the diameters of two different shapes of barrels. The other edge is marked: L. LUMLEY & C<sup>O</sup> L<sup>TD</sup> 1 AMERICA SQUARE LONDON. L. Lumley & Company, a distributor of packing cases and related materials for bottling, was in business in London from at least 1884 though 1929.
label: Description
content: For slide rules with similar two-slide designs but different purposes, see MA.318478 and 1987.0693.01. For earlier gauger's rules, see MA.319510 and 1980.0588.04.
label: Description
content: Reference: Ronald E. Manley, "Gauging," http://www.sliderules.info/a-to-z/gauging.htm.
label: Location
content: Currently not on view
place: label: place made
content: United Kingdom: England, London
topic: label: Subject
content: Rule, Calculating
label: Subject
content: Taxes
label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
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content: Slide Rules
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.320637
label: catalog number
content: 320637
label: accession number
content: 242721
objectType: label: Object Name
content: slide rule
physicalDescription: label: Physical Description
content: yew (overall material)
label: Physical Description
content: brass (part material)
label: Measurements
content: overall: .9 cm x 32.5 cm x 5.5 cm; 11/32 in x 12 25/32 in x 2 5/32 in