folding rule and square with level
Datecirca 1700
Inventory NumberDW0735
ClassificationRule-Folding
Subject
Maker
Michael Butterfield
1635 - 1724
Cultural Region
Place of Origin
Dimensions0.1 x 11.7 x 2 cm (1/16 x 4 5/8 x 13/16 in.)
Material
DescriptionThe folding square has ruled legs. Each leg has a scale labeled marked into 4 inches and subdivided into twelfths. Each leg has a secondary scale engraved along its other edge. This scale consists of six equally spaced increments. The first increment is further subdivided into ten increments, marked "5" half way and "10" at the end. Each subsequent increment is marked with an engraved numeral beginning with 20 and ending with 60, increasing in tens. The arm marked "4 pouces du roi" has a track cut through it with permitting the hanging of a plumb line.
One scale is labeled "pouces du roi" (French royal inches) and the other "pouces du rin" (Rhine inches).
One scale is labeled "pouces du roi" (French royal inches) and the other "pouces du rin" (Rhine inches).
Signedengraved in script on one arm: Butterfield AParis
Inscribedengraved in script on one arm: 4 pouces du roi
engraved in script on one arm: 4 pouces du rin
FunctionThe rules are used to measure and draw straight lines. Each rule is equipped with a pre-revolutionary French imperial four-inch scale [pied de roi]. The two rules can be connected along the diagonal edges to form a fixed square for drawing and verifying right angles.
ProvenanceDavid Wheatland purchased from Ernst Weil, London, March 16, 1959 (catalog 27, #306). Donated to CHSI 1985.
Bendix Corporation
Date: 1960-1980
Accessories: blue storage envelope; instructions (with instrument)
Object number: 2004-1-0362
Panelvision Corporation
Date: 1984
Accessories: single-board display controller
cable for display (1997-1-0686c)
shipping ticket/ hand carry pass dated June 11, 1997 (in instrument file)
letter to Dr. Richard V. Kollarits from William Andrewes dated June 16, 1997 regarding donation of MiniGraphic display and letter to William Andrewes from Dr. Richard V. Kollarits that accompanied the object upon donation on June 11, 1997 (in instrument file)
four sample color prints made with this display on micro-encapsulated photographic paper. 1. man in business suit, 2. woman crouching next to lawn ornament, 3. two clowns painting a third's face, 4. woman in winter hat and scarf (in instrument file)
copies of two articles by AT&T Bell Laboratories staff (Richard V. Kollarits, William, H. Ninke, David C. Gibbon) on color imaging and printing (in instrument file)
Panelvision pamphlet introducing the MiniGraphic multipurpose flat panel display, including instrument specifications, consumer prices, functioning and features (in instrument file)
1984 article by Panelvision employees (Peter Brody Fang-Chen Luo, Paul Malmberg) on active matrix technology (in instrument file)
Panelvision Corporation Fact Sheet, including details of company history and recent developments (in instrument file)
article about commercial debut of active matrix technology from Design Engineering newspaper, June 18, 1984 (in instrument file)
full circuit diagram and schematic for MiniGraphic Display Controller (in instrument file)
instruction manual and description of MiniGraphic Display Controller (two copies, in instrument file)
circuit diagrams and instruction manuals for the MiniGraphic Display (two booklets, in instrument file)
Object number: 1997-1-0686a
F. F. Metzger
Date: 1905-1930
Accessories: steel contact points (4);
strain gauges (2);
square bars (2);
dial gauge
Object number: 1999-1-0083
George Grady Press
Date: after 1943
Object number: 1998-1-1689