Engineering, Building, and Architecture - Overview
Not many museums collect houses. The National Museum of American History has four, as well as two outbuildings, 11 rooms, an elevator, many building components, and some architectural elements from the White House. Drafting manuals are supplemented by many prints of buildings and other architectural subjects. The breadth of the museum's collections adds some surprising objects to these holdings, such as fans, purses, handkerchiefs, T-shirts, and other objects bearing images of buildings.
The engineering artifacts document the history of civil and mechanical engineering in the United States. So far, the Museum has declined to collect dams, skyscrapers, and bridges, but these and other important engineering achievements are preserved through blueprints, drawings, models, photographs, sketches, paintings, technical reports, and field notes.
"Engineering, Building, and Architecture - Overview" showing 44 items.
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Lyman Protracting Trigonometer Signed Heller & Brightly
- Description
- This metal drawing instrument allows civil engineers to translate their measurements into drawings with a minimum of calculation. It consists of a flat steel base bar 81.5 cm (about 32 inches) long, a semicircular protractor with a flat plate along the diameter that slides along the base bar, a long steel arm clamped to the protractor at its center, a brass set square or sliding square that moves along the arm, and a tri-leaved scale (like an architect’s scale) that moves along the arm or along the set square. There are four metal springs, each with its own screw. The two smaller springs hold the protractor plate to the base bar and the two larger ones hold the tri-leaved scale or the set square to the arm. The entire instrument fits in a wooden case. A sheet of instructions is pasted inside the case.
- The protractor is divided by half-degrees and marked by tens from 0° to 90° to 0° and from 90° to 0° to 90°. An attached vernier permits angle readings to one minute of arc. The ratios on the architect's scales range from 1:10 to 1:60. Each scale is divided into tenths of a unit.
- This is a modified form of the protracting trigonometer patented by Josiah Lyman of Lenox, Mass., in 1858, with reissue of the patent in 1860, and extension in 1872 (for an example of the protracting trigonometer, see MA*328738; for an architect’s rule patented by Lyman, see MA*308914). The instrument was made by Heller & Brightly of Philadelphia. According to a Heller & Brightly circular, the instrument sold with either a tri-leaved scale that was 6 inches long or one that was 12 inches long. This instrument has the 12-inch scale, and would have sold in 1878 for $30.00.
- Hobart Cutler Dickinson (1875–1949), a 1900 graduate of Williams College who obtained a master’s degree there and did further graduate work at Clark University (Ph.D. 1910), owned this object. Dickinson worked at the U.S. National Bureau of Standards from 1903 until his retirement in 1945. Dickinson was the father of Anne D. Ross, one of the donors of the instrument.
- References: "Circular of Lyman’s Trigonometer and Universal Draughting Instrument" (Philadelphia: Heller & Brightly, 1878); P.A. Kidwell, “Josiah Lyman’s Protracting Trigonometer,” Rittenhouse, 3 (November 1988): 11–14; Robert C. Miller, “A Lyman Protracting Trigonometer Made by Heller & Brightly,” Rittenhouse 3 (August 1989): 129–131.
- Location
- Currently not on view
- date made
- ca 1880
- maker
- Heller & Brightly
- ID Number
- 2009.0244.01
- accession number
- 2009.0244
- catalog number
- 2009.0244.01
- Data Source
- National Museum of American History, Kenneth E. Behring Center
Wager Timber Scale Slide Rule
- Description
- Edward Wager-Smith (1872–1920), a native of New Jersey, graduated from the Spring Garden Institute in Philadelphia in 1889 and in 1893 gained employment as a draftsman for Merritt & Company, a structural steel firm in Philadelphia. As he rose to the position of structural engineer by 1910, he invented the Wager Timber Scale and the Merritt Beam Scale (1987.0108.02). This rule assisted architects and construction workers with computing the strength of wooden beams. It has 11 scales: A, thickness in inches; B, depth in inches; C, spacing in feet; D, span in feet; E, fibre [sic] stress in pounds per square inch; F, load in pounds per square foot; G, type of wood; H, depth in inches; I, method of loading; J, span in feet; and K, fibre stress in pounds per square inch. Scales A-B-C-D-E-F are meant to be used together, as are scales A-B-I-J-K-L and scales G-H-I-J.
- The back of the instrument gives government recommendations and regulations for safe stresses on wooden beams and a moisture classification chart by A. L. Johnson, "Economical Designing of Timber Trestle Bridges," U.S. Department of Agriculture Division of Forestry Bulletin No. 12 (Washington, D.C.: Government Printing Office, 1902), 11–12. The instrument fits in an orange paper envelope, which has instructions on its flap.
- This rule was distributed by the John Howard Herrick Company of Baltimore, a dealer of hardware and building materials. A photographer by avocation, Wager-Smith also designed the Wager Exposure Scale (patented in 1901—see 1993.0386.01) for correctly timing photographic exposures and the Wager Definition Scale (copyright 1905—see 1993.0386.02 and PG*4750) for determining the longest exposure allowable to produce clearly defined images of moving objects.
- The instrument is marked on the front and on the envelope: The Wager Timber Scale (/) FOR COMPUTING THE STRENGTH OF WOODEN BEAMS. It is also marked in both places: THE JOHN HOWARD HERRICK CO. (/) BALTIMORE, MD., U.S.A. It is also marked in both places: PRICE ONE DOLLAR. It is also marked on the front: PAT. JULY 1ST, 1902. This refers to a patent for a "slide-scale" resembling the Merritt Beam Scale and issued on that date to James S. Merritt of Philadelphia. The Wager Timber Scale was advertised for sale from Philadelphia by January 1905 and was mentioned in a textbook as late as 1921.
- References: "Wager-Smith, E.," National Cyclopaedia of American Biography (New York: James T. White, 1926), xix:136–137; "Notes and Comment," The New Photo-Miniature 6, no. 3 (1904): 558; James S. Merritt, "Slide Scale" (U.S. Patent 703,437 issued July 1, 1902); "The Wager Timber Scale," Municipal Journal and Engineer 18, no. 1 (1905): 48; "Municipal and Technical Literature: New Publications," Municipal Engineering 29, no. 6 (1905): 448–449; Ernst McCullough, Practical Structural Design (New York: U.P.C. Co., 1921), 81.
- Location
- Currently not on view
- date made
- 1902-1921
- maker
- Wager-Smith, Ernest
- ID Number
- 1987.0108.01
- accession number
- 1987.0108
- catalog number
- 1987.0108.01
- Data Source
- National Museum of American History, Kenneth E. Behring Center
Merritt Beam Scale Slide Rule
- Description
- This paper linear slide rule was designed to assist architects and construction workers with computing the strength of steel beams. There are seven scales: A, safe load in pounds per square foot; B, section of beams; C, spacing of beams in feet; D, span in feet; E, total safe load in net tons; F, manner of loading; G, span in feet. Scales A-B-C-D are meant to be used together, as are scales E-B-F-G. The back of the instrument gives instructions. The instrument fits in an orange paper envelope.
- The front of the instrument and the envelope are marked: The Merritt Beam Scale (/) FOR COMPUTING THE STRENGTH OF STEEL BEAMS. They also are both marked: THE JOHN HOWARD HERRICK CO. (/) BALTIMORE, MD., U.S.A. and PRICE ONE DOLLAR. The front of the instrument also is marked: Copyright (/) 1899 (/) by (/) James S. Merritt (/) M.E. and PAT. JULY 1ST, 1902. This last mark refers to a patent for a "slide-scale" taken out on that date by the mechanical engineer James S. Merritt of Philadelphia. The Merritt Beam Scale was mentioned in a textbook as late as 1921.
- Although the instrument is named for Merritt, its invention is credited to Ernest Wager-Smith (1872–1920), who worked for Merritt & Co. of Philadelphia from 1893 to 1910. See also his Wager Timber Scale (1987.0108.01).
- References: James S. Merritt, "Slide Scale" (U.S. Patent 703,437 issued July 1, 1902); "Wager-Smith, E.," National Cyclopaedia of American Biography (New York: James T. White, 1926), xix:136–137; Ernst McCullough, Practical Structural Design (New York: U.P.C. Co., 1921), 81.
- Location
- Currently not on view
- date made
- 1902-1921
- maker
- Wager-Smith, Ernest
- ID Number
- 1987.0108.02
- accession number
- 1987.0108
- catalog number
- 1987.0108.02
- Data Source
- National Museum of American History, Kenneth E. Behring Center
Model, Liberty Ship
- Description
- This model represents one of the 2,710 Liberty ships built during World War II. The designation EC2-S-C1 was the standard designation of the dry cargo Liberty ships that were used by the United States Merchant Marine to transport nearly anything needed by the Allies. Whether in Europe, Africa, or the Pacific, most of the essential supplies arrived on ships, including tanks, ammunition, fuel, food, toilet paper, cigarettes, and even the troops themselves. Manning these vessels was a dangerous task, as the merchant vessels faced tremendous losses from submarines, mines, destroyers, aircraft, kamikaze fighters, and the unpredictable elements of the various destinations. One in 26 merchant mariners died during the war, a higher fatality rate than that of any branch of the armed forces.
- Even before the United States was officially involved in World War II, shipyards on the Atlantic, Pacific, and Gulf coasts were building Liberty ships. Drawing from lessons learned at Hog Island in the First World War, Liberty ships were standardized and designed to be built quickly and efficiently. Using new welding technology, workers pieced together prefabricated sections in assembly-line fashion. This largely replaced the labor-intensive method of riveting, while lowering the cost and speeding up production. While it took about 230 days to build one Liberty ship in the first year, the average construction time eventually dropped to 42 days, with three new ships being launched each day in 1943.
- President Franklin Delano Roosevelt attended the launching of the first Liberty ship on September 27, 1941, at the Bethlehem-Fairfield Shipyard in Baltimore, Maryland. The ship was the SS Patrick Henry, named after the Revolutionary War hero whose famous “Give me Liberty or give me Death!” speech inspired the ships’ nickname. At the launching of the first “ugly duckling,” the President’s name for the stout and functional Liberty ships, he praised the shipyard workers: “With every new ship, they are striking a telling blow at the menace to our nation and the liberty of the free peoples of the world.” President Roosevelt proclaimed that these ships would help to bring a new kind of liberty to people around the world.
- date made
- early 1940s
- launching of first Liberty Ship, SS Patrick Henry
- 1941-09-27
- attended first launching
- Roosevelt, Franklin Delano
- ID Number
- TR*313022
- accession number
- 170015
- catalog number
- 313022
- Data Source
- National Museum of American History, Kenneth E. Behring Center
- No Image Available
[Trade catalogs from Birkinbine Engineering Offices]
- Date
- 1800s
- Company Name
- Birkinbine Engineering Offices
- Record ID
- SILNMAHTL_7818
- Data source
- Smithsonian Institution Libraries
- No Image Available
[Trade catalogs from Dodge & Day]
- Date
- 1900s
- Company Name
- Dodge & Day
- Record ID
- SILNMAHTL_12882
- Data source
- Smithsonian Institution Libraries
- No Image Available
[Trade catalogs from Hales & Ballinger]
- Date
- 1900s
- Company Name
- Hales & Ballinger
- Related companies
- Tioga Steel and Forge Works, Ltd.
- Record ID
- SILNMAHTL_18375
- Data source
- Smithsonian Institution Libraries
- No Image Available
[Trade catalogs from United Engineers & Constructors Inc.]
- Date
- 1900s
- Company Name
- United Engineers & Constructors Inc.
- Related companies
- This company is a combination of the following four engineering and construction organizations: U.G.I. Contracting Co. (Philadelphia, PA), Public Service Production Co. (Newark, NJ), Dwight P. Robinson & Co., Inc. (New York, NY), and Day & Zimmermann Engineering & Construction Co. (Philadelphia, PA).
- Record ID
- SILNMAHTL_27042
- Data source
- Smithsonian Institution Libraries
- No Image Available
[Trade catalogs from United Engineers & Constructors Inc.]
- Date
- 1900s
- Company Name
- United Engineers & Constructors Inc.
- Related companies
- A subsidiary of the Raytheon Company
- Record ID
- SILNMAHTL_27056
- Data source
- Smithsonian Institution Libraries
- No Image Available
[Trade catalogs from H. M. Chance & Co.]
- Date
- 1900s
- Company Name
- H. M. Chance & Co.
- Record ID
- SILNMAHTL_10321
- Data source
- Smithsonian Institution Libraries