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Society: ASMEMain Category: MechanicalSub Category: ManufacturingEra: 1960-1969DateCreated: 1966Robbins & Lawrence ArmoryWindsorState: VTZip: 05089Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/manufacturing---2/-119-american-precision-museumCreator: Battison, Edwin Albert
In fulfilling a contract for 25,000 U.S. Army rifles (Model 1841) and a like quantity for the British government, Robbins and Lawrence were the first to achieve interchangeability of parts on a fully practical level, contributing greatly to all subsequent mass production of machine products. This was made possible by the systematic improvement and refinement of existing standard and special-purpose machine tools, enabling them to perform with the close-limit precision essential for "repeatability" and thus interchangeability (see the American Precision Museum).
YearAdded:
1987
Image Credit: Courtesy Flickr/Liz West (CC BY 2.0)Image Caption: American Precision MuseumEra_date_from: 1966
Cornish - Windsor Covered Bridge
Society: ASCEMain Category: CivilSub Category: BridgesEra: 1860-1869DateCreated: 1866Windsor Covered BridgeCornishState: VTZip: 03745Country: USAWebsite: http://www.asce.org/project/cornish-windsor-covered-bridge/Creator: Town, Ithiel

The Cornish-Windsor Covered Bridge is the longest wooden bridge in the United States and the longest two-span, covered bridge in the world. It is also a classic example of wooden bridge-building in 19th-century America. With copious supplies of timber at hand and a generous reserve of carpentry skills available, bridge builders in early America quickly discarded the masonry arches prevalent in the Old World. Instead, they opted for a revival of timber-truss designs dating from 14th century Europe.

YearAdded:
1970
Image Credit: Courtesy Flickr/aussiegtl (CC BY 2.0)Image Caption: Cornish - Windsor Covered BridgeEra_date_from: 1866
Ascutney Mill Dam
Society: ASCEMain Category: CivilSub Category: DamsEra: 1830-1839DateCreated: 1834Mill BrookWindsorState: VTZip: 05089Country: USAWebsite: http://www.asce.org/Project/Ascutney-Mill-Dam/Creator: Beard, Ithamar , Cobb, Simeon

Ithamar A. Beard, an engineer of some prominence in New England, surveyed the mill brook and selected the best site for a storage dam. Contractor Simeon Cobb, knowledgeable of contemporary civil engineering practices, made major changes to the dam's original design, converting the linear dam into a gentle arch.

YearAdded:
1970
Image Credit: Courtesy Wikipedia/Ymblanter (CC BY-SA 3.0)Image Caption: The Ascutney Mill Arch-Gravity DamEra_date_from: 1834
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