L. Lumley & Co. Gauger's Slide Rule

Object Details

L. Lumley & Company Limited

Description

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^T S^T (segments standing). The lowest scale on the base is labeled SEG^T L^Y (segments lying).

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.

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.

One edge of the instrument has a scale labeled SPH^D and a scale labeled 2^ND VARIETY. These scales are for determining the diameters of two different shapes of barrels. The other edge is marked: L. LUMLEY & C^O L^TD 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.

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.

Reference: Ronald E. Manley, "Gauging," http://www.sliderules.info/a-to-z/gauging.htm.

Location

Currently not on view

1884-1929

ID Number

MA.320637

catalog number

320637

accession number

242721

Object Name

slide rule

Physical Description

yew (overall material)

brass (part material)

Measurements

overall: .9 cm x 32.5 cm x 5.5 cm; 11/32 in x 12 25/32 in x 2 5/32 in

place made

United Kingdom: England, London

See more items in

Medicine and Science: Mathematics

Science & Mathematics

Slide Rules

National Museum of American History

subject

Rule, Calculating

Taxes

Mathematics

Record ID

nmah_1215044

Metadata Usage (text)

CC0

GUID (Link to Original Record)

http://n2t.net/ark:/65665/ng49ca746a9-aa8f-704b-e053-15f76fa0b4fa