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 81 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
- No Image Available
Division of Transportation: Railroads' Engineering Data, 1912-1949
- Summary
- Includes statistics on electric train operation, drawings, blueprints, technical papers, train classifications, research and development reports, business and financial correspondence (1933, 1939-48, 1940-41), installation and operation instructions, locomotive system test procedures, locomotive operations data and calculations, records of locomotive mileages and part failures, suggested locomotive improvements, locomotive specifications, plans for fire extinguishing systems, tonnage ratings, etc
- Railroads represented are the New York, New Haven and Hartford Railroad, Piedmont and Northern Railroad, Pennsylvania Railroad, Takata and Company Railroad, Philadelphia and Western Railroad, Sorocabana Railway, and Erie Railroad Company
- Cite as
- Division of Transportation: Railroads' Engineering Data, Archives Center, National Museum of American History
- Date
- 1912
- 1912-1949
- 1930-1950
- collector
- Hamily, David
- Transportation, Division of, NMAH, SI
- Subject
- New York, New Haven, and Hartford Railroad
- Piedmont and Northern Railroad
- Pennsylvania Railroad
- Takata and Company Railroad
- Philadelphia and Western Railroad
- Sorocabana Railway
- Erie Railroad Company
- Data Source
- Archives Center - NMAH
Plate 39. Gateway of Cemetary, Gettysburg
- Description
- Text and photograph from Gardner's Photographic Sketchbook of the War, Vol. II. Negative by Timothy H. O'Sullivan, text and positive by Alexander Gardner.
- Cemetery Ridge was the scene of some of the severest fighting at Gettysburg. The knoll shown in the sketch is that upon which the last assault of the enemy was made, and on which is situated the National Soldiers' Cemetery. The original cemetery was a very handsome enclosure, and contained many elegant monuments, very few of which were injured, notwithstanding the terrible nature of the conflict. The shrubbery was badly broken, and the fence swept away, but at the conclusion of the fight there still remained, as if in mockery, the notice, "All persons found using fire-arms in these grounds will be prosecuted with the utmost rigor of the law." The third day's fight was in front of this spot, and was commenced about one o'clock in the afternoon by the enemy opening a cannonade from 120 pieces of artillery on the front of the line connecting Cemetery Ridge with Round Top. Gen. Hancock, in one of his reports, says: "That cannonade continued for probably an hour and a half. The enemy then made an assault at the end of that time; it was a very formidable assault, and made, I should judge, with about 18,000 infantry. When the columns of the enemy appeared, it looked as if they were going to attack the centre of our line, but after marching straight out a little distance they seemed to incline a little to their left, as if their object was to march through my command and seize Cemetery Hill, which, I have no doubt, was their intention.
- They attacked with wonderful spirit; nothing could have been more spirited. The shock of the assault fell upon the Second and Third Divisions of the Second Corps, and these were the troops, assisted by a small brigade of Vermont troops, together with the artillery of our line, which fired from Round Top to Cemetery Hill at the enemy, all the way, as they advanced, whenever they had the opportunity. Those were the troops that really met the assault. No doubt there were other troops that fired a little, but those were the troops that really withstood the shock of the assault and repulsed it. The attack of the enemy was met by about six small brigades of our troops, and was finally repulsed after a terrific contest at very close quarters, in which our troops took about thirty or forty colors, and some four thousand or five thousand prisoners, with great loss to the enemy in killed and wounded. The repulse was a most signal one, and that decided the battle, and was practically the end of the fight." Here President Lincoln attended the consecration of the Soldiers' National Monument, erected to the memory of the heroic men who fell in that struggle. The shattered trees and crushed flowers have all been replaced by others, whose beauty and fragrance we may confidently hope shall never be again blasted by war.
- Location
- Currently not on view
- date made
- 1863-07
- maker
- Gardner, Alexander
- ID Number
- 1986.0711.0334.39
- accession number
- 1986.0711
- catalog number
- 1986.0711.0334.39
- Data Source
- National Museum of American History, Kenneth E. Behring Center
Plate 41. Trossel's House, Battle-field of Gettysburg
- Description
- Text and photograph from Gardner's Photographic Sketchbook of the War, Vol. II. Negative by Timothy H. O'Sullivan, text and positive by Alexander Gardner.
- This house is in front of the left of the position occupied by our army at the battle of Gettysburg. General Sickles established his headquarters near this House on the second day's fight, and it was in this immediate vicinity that he received his wound, from which he lost his limb. The dead horses about the building indicate the terrific character of the fight. General Sickles had discovered early in the day that the enemy were moving around on our left, and advanced his corps some distance, for the purpose of securing a favorable position. The battle opened about half-past three, the enemy moving down in three lines, and almost overwhelming the Third Corps. At five o'clock General Birney assumed command of the corps, General Sickles having been wounded. In the meantime, the rebels had forced back the left of our lines, and undoubtedly would have gained possession of Round Top, but for the timely arrival of the Fifth Corps, which became hotly engaged, losing many valuable officers, but finally repulsing the enemy, and holding a position, the loss of which would have necessitated the retreat of our army, and perhaps resulted in its total defeat.
- Thousands of dead and wounded were strewn over the fields adjacent to this House, and graves of Confederates can be found in every direction. The trees are scarred by bullets, marks of cannon-shot and shell disfigure the buildings, and the remains of the hastily constructed breastworks, with mouldering fragments of accoutrements, still show where the lines of battle were engaged.
- Location
- Currently not on view
- date made
- 1863-07
- maker
- Gardner, Alexander
- ID Number
- 1986.0711.0334.42
- accession number
- 1986.0711
- catalog number
- 1986.0711.0334.42
- Data Source
- National Museum of American History, Kenneth E. Behring Center
Plate 43. Headquarters Maj. Gen. George G. Meade, during the Battle of Gettysburg
- Description
- Text and photograph from Gardner's Photographic Sketchbook of the War, Vol. II. Negative by Timothy H. O'Sullivan, text and positive by Alexander Gardner.
- Just back of the cemetery at Gettysburg, on the road leading to Taneytown, stands a humble dwelling, made historical by its occupation as headquarters of General Meade. This officer having assumed command of the Army of the Potomac at Frederick, thirty miles distant, immediately sent out the several Corps on different roads towards Harrisburg, with orders to attack the enemy wherever he might be found. On the first of July, Reynolds, with the First Corps, engaged the Confederates at Gettysburg, and after a gallant struggle, in which that officer was killed, the Corps, reinforced by the Eleventh, retired to the strong position on Cemetery Ridge. General Meade first heard of the engagement and its result at Taneytown, ten miles away, about sundown. Orders were at once despatched [sic] for the other Corps to march for the scene of action. The headquarters camp was struck, tents and wagons were sent back to Westminster, and shortly after midnight the General and staff pushed on to Gettysburg, establishing headquarters at this house.
- The second of July was one of the most lovely days of the season, and, with the exception of occasional shots between the advanced picket lines, remained perfectly quiet until three o'clock. The headquarters, however, throughout the day presented a most animated appearance. Commanding officers and couriers were constantly arriving and departing, while the staff officers and escort lounged in the shade about the house, or slept on the green turf, gathering strength for the conflict momentarily expected to commence. In the afternoon, Sickles, with the Third Corps, was attacked by the enemy, and the battle finally became general, the First, Fifth, Sixth and Eleventh participating, with the Second and Twelfth in reserve in the rear of the right wing. The headquarters, from its exposed position, at once became the centre of a terrible artillery fire. Shot and shell plunged through the building in quick succession, and made sad havoc with the group about it. In a few minutes a number were killed, and the General was soon compelled to withdraw, leaving dead and struggling horses on every side. On the third day the house was exposed to even a more severe fire, which threatened to utterly annihilate it. Immediately after the battle, the owner returned, repaired the damages, and the building now promises to stand for many years, bearing the scars of that fierce conflict.
- Location
- Currently not on view
- date made
- 1863-07
- maker
- Gardner, Alexander
- ID Number
- 1986.0711.0334.43
- accession number
- 1986.0711
- catalog number
- 1986.0711.0334.43
- 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
Niagara Falls Original Turbines
- Description
- Using this extremely fine wood model as part of its technical proposal, the Swiss firm Faesch & Piccard won the contract to design the original turbines for the Niagara Falls power station. The actual turbines were built by the I. P. Morris Company of Philadelphia and were installed in 1895, the year the Adams Station went on line. The hydroelectric power generation facility at Niagara Falls gained international acclaim for its ability to efficiently convert a portion of the Falls' awe-inspiring natural energy into electricity. This was the world's first large-scale central electric power station, demonstrating how falling water (or other power sources) could be used successfully to supply electricity over an extended geographical area.
- For additional information
- date made
- 1895
- ID Number
- 315850
- accession number
- 221414
- catalog number
- 315850
- 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

