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Dring & Fage Timetable Sliding Rule

National Museum of American History

Object Details

Dring & Fage
Description
This yew wood and brass rule finds the number of weeks between two dates that were up to two years apart. The months of the year are listed along the right edge, from January to December, twice. The month names are adjacent to a continuous calendar for the 24 months, with seven days per row. A brass slide to the left of the calendar is numbered from 1 to 104 (for two years of weeks). A ring at the top for hanging the rule is marked: TIME TABLE. Dock companies used the rule to compute storage charges for goods shipped to or from British ports.
The right edge is marked: DRING & FAGE MAKERS TOOLEY ST LONDON. The English firm established by John Dring and William Fage operated at various locations on Tooley Street from 1792 to 1882. For another timetable, or rent, rule by this maker, see inventory number 1954–305 at the Science Museum in South Kensington, London, http://www.sciencemuseum.org.uk/objects/mathematics/1954-305.aspx. The Science Museum owns several dozen other objects by this maker; see http://collectionsonline.nmsi.ac.uk/detail.php?type=related&kv=2628&t=people.
The back of the rule is stenciled: HWE. The Smithsonian acquired this object in 1962. No further information on the original owner is available.
Reference: Adler Planetarium, Webster Signature Database, http://historydb.adlerplanetarium.org/signatures/.
Location
Currently not on view
1792–1882
ID Number
MA.320636
catalog number
320636
accession number
242721
Object Name
rule, sliding
Physical Description
wood (overall material)
brass (overall material)
Measurements
overall: .8 cm x 40 cm x 5.4 cm; 5/16 in x 15 3/4 in x 2 1/8 in
place made
United Kingdom: England, London
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Scale Rules
National Museum of American History
Subject
Mathematics
Calendar
Maritime
Record ID
nmah_1214952
Metadata Usage (text)
CC0
GUID (Link to Original Record)
https://n2t.net/ark:/65665/ng49ca746aa-965f-704b-e053-15f76fa0b4fa

Related Content

  • Scale Rules

    American History Museum
Dring & Fage Timetable Sliding Rule
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