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Locks On The Chesapeake And Ohio Canal
The Locks on the Chesapeake and Ohio Canal, located in Maryland, West Virginia, and Washington, D.C. of the United States, were of three types: lift locks; river locks; and guard, or inlet, locks. They were numbered 1 to 75, including two locks with fractional numbers ( and ) and none numbered 65. There is also the Tidewater Lock, sometimes called Lock 0, lock at the downstream end of the canal in Washington, D.C., where Rock Creek flows into the Potomac River. The fractional numbering arose because locks 70–75 were completed in 1842, before locks 62 and 66. It was found that the level of the canal between locks 62 and 66 could be raised in three steps instead of four. So the additional locks through there were numbered steps apart (62, , , and 66) so that the other locks, already completed, did not have to be renumbered. While one source states that it takes about 10 minutes for a boat to lock through, experiments done in the 1830s show that it was possible for a boat to go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opening Paddle Valves On Lock Gate On C And O Canal
Opening may refer to: * Al-Fatiha, "The Opening", the first chapter of the Qur'an * The Opening (album), live album by Mal Waldron * Backgammon opening * Chess opening * A title sequence or opening credits * , a term from contract bridge * , a term from contract bridge * Grand opening of a business or other institution * Hole * Inauguration * Keynote * Opening (morphology), a morphological filtering operation used in image processing * Opening sentence * Opening statement, a beginning statement in a court case * Overture * Salutation (greeting) * Vernissage A vernissage (from French, originally meaning " varnishing") is a preview of an art exhibition, which may be private, before the formal opening. If the vernissage is not open to the public, but only to invited guests, it is often called a ''pri ... See also * * {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guard Lock 8 C And O Canal From NPS
Guard or guards may refer to: Professional occupations * Bodyguard, who protects an individual from personal assault * Crossing guard, who stops traffic so pedestrians can cross the street * Lifeguard, who rescues people from drowning * Prison guard, who supervises prisoners in a prison or jail * Security guard, who protects property, assets, or people * Conductor (rail) § Train guard, in the UK, Australia, New Zealand, and India Computing and telecommunications * Guard (computer science), in programming language, an expression that directs program execution * Guard (information security), a device for controlling communication between computer networks * Guard interval, intervals in transmission, used in telecommunications * Aircraft emergency frequency, commonly referred to as "guard" Governmental and military * Border guard, a state security agency * Coast guard, responsible for coastal defence and offshore rescue * Colour guard, a detachment of soldiers assigned to the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock 70 Detail Of Upper Gate Pockets On Chesapeake And Ohio Canal
Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock'' (film), a 2016 Punjabi film * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro * Lock (waltz), a dance figure * ''Locked'' (miniseries), Indian web miniseries * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * ''Locks'' (album), by Garnet Crow, 2008 People *Lock (surname) *Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" * George Locks (1889–1965), English cricketer *Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr. Places *Lock, Ohio, an unincorporated community in the United States *Lock, South Australia, a small town in the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Composite Lock Vs Regular Lock On Chesapeake And Ohio Canal
Composite or compositing may refer to: Materials * Composite material, a material that is made from several different substances ** Metal matrix composite, composed of metal and other parts ** Cermet, a composite of ceramic and metallic materials ** Dental composite, a substance used to fill cavities in teeth ** Composite armor, a type of tank armor * Alloy, a mixture of a metal and another element * Mixture, the combination of several different substances without chemical reaction Mathematics * Composite number, a positive integer that has at least one factor other than one or itself Science * Composite particle, a particle which is made up of smaller particles * ''Compositae'' or "composite family" of flowering plants * Composite volcano, a layered conical volcano * Compositing, another name for superposed epoch analysis, a statistical method used to analyze time series involving multiple events Technology * Compositing, combining of visual elements from separate sources into ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bypass Flume Lock 7 C And O Canal
Bypass may refer to: * Bypass (road), a road that avoids a built-up area (not to be confused with passing lane) * Flood bypass of a river Science and technology Medicine * Bypass surgery, a class of surgeries including for example: ** Heart bypass ** Gastric bypass ** Cardiopulmonary bypass Other * Bypass capacitor, used to bypass a power supply or other high impedance component * High bypass, a turbofan aircraft gas turbine engine ** Bypass duct ** Bypass ratio * Bleach bypass, an optical effect * * Bypass (telecommunications) * Bypass valve ** A blowoff valve on a compressor ** A manual gas addition valve on a rebreather Other uses * ''The Bypass'', a 2003 short silent Bollywood film * Railroad bypass, a new railroad line built to replace or supplement an existing route See also * * * Pass (other) Pass, PASS, The Pass or Passed may refer to: Places *Pass, County Meath, a townland in Ireland * Pass, Poland, a village in Poland *Pass, an alternate term for a n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock Tenders Shanty On C And O Canal At Lock 50
Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock'' (film), a 2016 Punjabi film * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro * Lock (waltz), a dance figure * ''Locked'' (miniseries), Indian web miniseries * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * ''Locks'' (album), by Garnet Crow, 2008 People *Lock (surname) *Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" * George Locks (1889–1965), English cricketer *Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr. Places *Lock, Ohio, an unincorporated community in the United States *Lock, South Australia, a small town in the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Cramps Holding Stones Together On C And O Canal Rileys Lock
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron Age. In t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drop Lock Mechanism From Same Side
Drop, DROP, drops or DROPS may refer to: * Drop (liquid) or droplet, a small volume of liquid ** Eye drops, saline (sometimes mydriatic) drops used as medication for the eyes * Drop (unit), a unit of measure of volume * Falling (physics), allowing an object to fall or drop ** Free fall * Drop, or topographic prominence, the height of a hill above its surroundings Computers and technology * Drop (SQL), a command in SQL queries to remove an existing database, table, index, or view * Drop (telecommunication), the portion of a device directly connected to the internal station facilities * Don't Route Or Peer (DROP) list, a list of spam sources Confectionery * Drops (confectionery), a general term for small, round sweets * Lemon drop (candy), a hard-sugar, lemon-flavored sweet * Hershey's Drops, chocolate sweets based on the Hershey bar * London drops, a Swedish/Finnish sugar-coated liquorice sweet * Drop (''Eng.'' Salty liquorice), a common Dutch sweet * Cough drop, or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennyfield Lock
The Pennyfield Lock (Lock #22) and lockhouse are part of the 184.5-mile (296.9 km) Chesapeake and Ohio Canal (a.k.a. C&O Canal) that operated in the United States along the Potomac River from the 1830s through 1923. The lock, located at towpath mile-marker 19.7, is near Maryland Route 190, River Road in Montgomery County, Maryland. The original lock house was built in 1830, and its Lock (water navigation), lock was completed in 1831. The name "Pennyfield" is a misspelling of the family name of long-time lock keepers George and Charles Pennifield. George, and then his son Charlie, operated the lock from the 1880s until it was permanently closed. George was an avid fisherman, and once hosted President Grover Cleveland for several days of fishing near the lock. Today, the lock and restored lock house are part of the Chesapeake and Ohio Canal National Historical Park. The area is a favorite of Birdwatching, bird watchers, and the Pennyfield Lock Neighborhood Conservation Area an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock Trash And Rake On C And O Canal
Lock(s) may refer to: Common meanings * Lock and key, a mechanical device used to secure items of importance * Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock'' (film), a 2016 Punjabi film * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro *Lock (waltz), a dance figure * ''Locked'' (miniseries), Indian web miniseries * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * ''Locks'' (album), by Garnet Crow, 2008 People *Lock (surname) * Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" *George Locks (1889–1965), English cricketer * Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr. Places *Lock, Ohio, an unincorporated community in the United States * Lock, South Australia, a small town in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cabin John, MD
Cabin John is a census-designated place and an unincorporated area in Montgomery County, Maryland, United States. Its original southern boundary encompassed a section of the Chesapeake and Ohio Canal (C&O) including locks 8–12, and the northern shore of the Potomac River. It is also the access point to Plummers Island, originally owned by The Washington Biologists’ Field Club and called “the most thoroughly studied island in North America.” Cabin John is the location of the Union Arch Bridge built between 1857 and 1864; at the time of its completion, the bridge embodied the longest single-span masonry arch in the world and remains the longest in the United States. History Early land records in 1715 cite Captain John's Run, now Cabin John Creek. The toponym "Cabin John" is thought to be a corruption of the name "Captain John", but the origin of the name remains unresolved. Immediately adjacent to the west end of the Union Arch Bridge, overlooking the river, was the historic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock On The Chesapeake And Ohio Canal
Lock(s) may refer to: Common meanings * Lock and key, a mechanical device used to secure items of importance * Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock'' (film), a 2016 Punjabi film * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro *Lock (waltz), a dance figure * ''Locked'' (miniseries), Indian web miniseries * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * ''Locks'' (album), by Garnet Crow, 2008 People *Lock (surname) * Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" *George Locks (1889–1965), English cricketer * Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr. Places *Lock, Ohio, an unincorporated community in the United States * Lock, South Australia, a small town in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
