Lufkin 651B Folding Rule
date: label: date made
content: 1918–ca 1925
name: label: Maker
content: Lufkin Rule Company
notes: label: Description
content: This four-fold boxwood rule has a brass round joint at the center and two brass hinges. It is two feet long when unfolded. One side has a scale of inches divided to 1/8" and numbered by ones from 23 to 1. One arm is marked: N<u>o</u> 651B LUFKIN RULE CO. The other arm is marked: 1681 MADE IN U.S.A. PAT'D 12–3–18.
label: Description
content: The other side has a scale of inches divided to 1/16" and numbered by ones from 23 to 1. One arm is marked: WARRANTED BOXWOOD. The other arm is marked: N.Y.C. APP. TYPE 352 SERIAL E 2.
label: Description
content: Initially a manufacturer of boards for measuring timber and then of steel measuring tapes, the Lufkin Rule Company took that name in 1885 and moved from Cleveland, Ohio, to Saginaw, Mich., in 1895. By 1903 Lufkin was the largest manufacturer of steel measuring tapes in the United States. Around 1915 the firm began importing boxwood folding rules from central Europe and made the rules itself once World War I cut off its supplies. While Lufkin had a model 651 (formerly 68) that it advertised from the early 20th century into the 1950s, model 651B only began to appear in 1916 and disappeared by 1925. Twelve of these rules sold for $2.50 in 1916.
label: Description
content: Lufkin president Fred Buck received the patent noted on the instrument for an improvement to the joint. Thus, this rule dates between 1918 and 1925. Cooper Industries purchased the company in 1967, closing its factories but preserving Lufkin as a brand name. An earlier Lufkin rule is 1985.0817.01.
label: Description
content: References: Lufkin Rule Company, <i>Measuring Tapes and Rules</i>, cat. no. 9 (Saginaw, [1916]), 77; Fred Buck, "Joint for Folding Rules" (U.S. Patent 1,286,525 issued December 3, 1918); Lufkin Rule Company, <i>Measuring Tapes, Rules, and Machine Tools</i>, cat. no. 11 (Saginaw, [about 1925]), 120; David N. Keller, "The Lufkin Rule Company," in <i>A Source Book for Rule Collectors</i>, ed. Philip E. Stanley (Mendham, N.J.: Astragal Press, 2003), 81–86.
label: Location
content: Currently not on view
place: label: place made
content: United States: Michigan, Saginaw
topic: label: Subject
content: Mathematics
label: Subject
content: Rule, Measuring
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
label: See more items in
content: Scale Rules
creditLine: label: Credit Line
content: Gift of Edith R. Meggers
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.335275
label: accession number
content: 314637
label: catalog number
content: 335275
objectType: label: Object Name
content: rule
label: Object Name
content: scale rule
label: Object Name
content: rule, folding
physicalDescription: label: Physical Description
content: boxwood (overall material)
label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: .4 cm x 61 cm x 1.3 cm; 5/32 in x 24 1/32 in x 1/2 in