Wiktionarypar aerator Aerators are various devices used for aeration , or mixing air with another substance, such as soil or water. Aerator may also refer to Aerated lagoon Floating surface aerators Floating surface aerators , used in aerated lagoons Faucet aerator Lawn aerator Water aeration Aeration methods Pond or lake aerator , used in water aeration Wine accessory Wine aerator Wine aerator disambig ... more details
Image Faucet2.JPG thumb An aerator attached to a sink tap. A faucet aerator or tap aereator is often found at the tip of modern indoor water faucets . Without an aerator, water usually flows out of a faucet as one big stream. An aerator spreads this stream into many little droplets. This helps save water and reduce splashing. Faucet aerators are often used in homes with low water pressure in order to increase the perceived water pressure. ref http blog.microsoft hohm.com news 10 03 17 How to change a faucet aerator.aspx How to change a Faucet Aerator ref A faucet aerator helps to meet U.S. Leadership in Energy and Environmental Design LEED certifications ref http www.usgbc.org ShowFile.aspx?DocumentID 3638 LEED for Homes Rating System ref by limiting the total flow of water. References reflist DEFAULTSORT Faucet Aerator Category Valves architecture stub de Strahlregler it Rompigetto pl Perlator ... more details
POV date March 2012 File Lawn aerator attachment on a garden tiller.JPG thumb Core lawn aerator attachment on a conventional front tine garden tiller A lawn aerator is a garden tool or machine designed to aerate the soil in which lawn lawn grasses grow. Aeration improves soil drainage and encourages worm s, microfauna and microflora which require oxygen . Lawn problems Lawn aeration constitutes two things controlling lawn thatch and reducing soil compaction . Lawn thatch is a layer of dead organic tissue that deprives the lawn of much needed oxygen. Soil compaction makes it difficult for grass to root and it disturbs natural rainwater irrigation . Watering the lawn the night before aerating can make it easier to aerate a very dense lawn. It is purported that scientific evidence exists that aeration makes a measurable difference in the long term health or quality of a lawn. Fact date April 2009 Also is great for the planting of new lawns. Types of aerators There are two types of lawn aerators. Spike aerators use wedge shaped solid spikes to punch holes in the soil. Core aerators have hollow tines and pull out plugs or cores from soil. File Curved Spike Aerator.jpg thumb Curved spike aerator Core plug aerator vs. spike aerator A core plug aerator removes soil from the ground and leaves the core on the turf. This reduces compaction in the soil, and the holes can stay open for a long time. Then air, fertilizer, and water will be able to reach the roots, thus benefit the grass. Meanwhile, the soil cores left on the turf will help break down the thatches. A spike aerator creates holes in the ground by pushing the soil sideways using wedge shaped spikes. This increases soil compaction .... Any serious lawn aerating should be done with a core aerator. Powered aerator vs. manual aerator File AIREADORA 04.JPG thumb Powered core aerator in use Powered aerators employ the power from a gas ... issue, which slows down the operation even more. However, a well made manual aerator offers advantages ... more details
Green retrofit , home energy retrofit , home retrofit , ref name EERE http apps1.eere.energy.gov news news detail.cfm news id 15561 ref Deep energy retrofit and home performance retrofit ref name homenergy.org http www.homeenergy.org article preview.php?id 314&article title Anatomy of a Home Performance Retrofit ref are terms with overlapping meaning for retrofit s that ensure the maintenance and preservation of buildings and the continued operation and maintenance of Efficient energy use energy efficiency technologies. ref name HUD http portal.hud.gov portal page portal RECOVERY programs GREEN ref The meaning ranges from steps home owners can do themselves ref name GHG http greenhomeguide.com know how article green retrofit checklist ref to buying up distressed properties and making them certifiably green. ref name KUOW http www.kuow.org program.php?id 19324 ref In the United States, the DOE issued a solicitation for 390 million for a Retrofit Ramp Up program. ref name EERE Simple steps Steps home owners can do themselves include the following ref name GHG Switching to compact fluorescent light bulb s and or LED light bulb s Programmable thermostat s Plugging air leaks with weather stripping and caulking . This is what inspired the name HOME STAR Cash for caulkers in the United States. Tuning up heating system heating and HVAC cooling HVAC systems. Choosing appliances with low energy consumption. In the United States, this is certified by the Energy Star . Reducing water use by installing Faucet aerator aerator s and low flow showerhead s Switching to green power , including solar energy Using low VOC products to improve indoor air quality Planting native plant s and other appropriate landscaping measures. See also HOME STAR References references External links http www.cpuc.ca.gov NR rdonlyres B7966556 0F2D 4306 9B08 2D8F891ADFA3 0 ResidentialWholeHouseProgramDesign 0701draft.pdf Residential Sector Designing a prescriptive whole house retrofit program , Michael Wh ... more details
Water aeration Pond aeration Aeration of soil File Plug Aerator.jpg thumb Lawn aerator Plug core lawn aerator Refers to the extent of Porosity Porosity of soil air gaps in soil . Aeration commonly ... and reduces puddles formation. Spike aeration involves the use of an Lawn aerator aeration machine ... seed can have direct contact with the soil. There are many types of lawn aerator s including walk behind ..., or a specialized wine aerator . Cider from Asturias is poured into the glass from a height of about ... more details
unref date June 2011 Image Jet aerator at paper mill.jpg thumb Jet aerators operating in a waste sludge tank at a paper mill. Courtesy of Landia. Working Principle Jet aerators are applied across a wide range of wastewater and biosolids treatment applications. Their primary purpose is to transfer oxygen to the liquid or sludge. A jet aerator works through aspirating technology by simultaneously introducing large volumes of high kinetic energy liquid and air through one or more jet nozzles. The high velocity exits the inner, primary jet and rapidly mixes with the incoming air in the outer jet. This intense mixing and high degree of turbulence in the gas liquid cloud travels outward from the jet along the basin floor prior to the vertical rise of the gas bubble column to the liquid surface. Applications, Features and Benefits Oxygen Transfer Efficiency And Energy Savings In most industrial wastewater and biosolids applications jet aerators exhibit superior oxygen transfer efficiency compared to other aeration technologies. The hydrodynamic conditions within the jet and fine bubble cloud produces continuous surface renewal at the gas liquid interface resulting in higher alpha factors. This results in superior process oxygen transfer performance in the presence of surfactants, extrecelluar enzymes and high MLS concentrations. Process Flexibility Jet aerators do not require any external air source i.e. compressor , except for the surrounding atmosphere. Jet aerators can be installed either as submersible units or piped through the tank wall using an external dry installed chopper pump to feed the aspirating ejector s . Jet aerators are easily configured into any basin geometry including circular, rectangular, looped reactors and sloped wall basins. Jet aerators are ideally suited for deep tank processes. The jet oxidation ditch is an example of technology innovation where the combination of a deeper basin design, bottom to top mixing and conservation of momentum combines ... more details
Tom Thumb is a diminutive hero of English folklore. Tom Thumb may also refer to In entertainment Tom Thumb play Tom Thumb play , a 1730 play by Henry Fielding Tom Thumb comics , the codename of two Marvel Comics superheroes tom thumb film tom thumb film , a 1958 feature film directed by George Pal The Secret Adventures of Tom Thumb , a 1993 stop motion animated film Tom of T.H.U.M.B. , a segment American Japanese children s animated television series The King Kong Show Just Like Tom Thumb s Blues , a song by Bob Dylan Tom Thumb , a jazz composition by saxophonist Wayne Shorter in tribute to fellow pianist Bobby Timmons whose nickname was Tom Thumb, notably recorded on Timmons s album Soul Man 1966 Shorter s album Schizophrenia Wayne Shorter album Schizophrenia 1967 In history Tom Thumb locomotive Tom Thumb locomotive , the first American built steam locomotive General Tom Thumb , the stage name of performer Charles Sherwood Stratton 1838 1883 Tom Thumb , an open boat used by navigator Matthew Flinders and George Bass in 1796 In miscellaneous Tom Thumb snaffle, a type of bit mouthpiece for horses Tom Thumb Food & Pharmacy , a chain of supermarkets in the Dallas Fort Worth Metroplex Tom Thumb Food Stores , a chain of convenience stores in the Florida Panhandle and southern Alabama Tom Thumb Gallery , an alternative exhibition space in Kirksville, Missouri Tom Thumb TT , the smallest size of a Faucet aerator disambig br Le Petit Poucet fr Le Petit Poucet homonymie it Pollicino disambigua ... more details
File Garden tools.jpg 280px thumb right A collection of various garden tools. Image Pruning Tools M D Vaden.jpg 200px thumb right Some Pruning tools that can be used to maintain a garden. A garden tool is any one of many tools made for gardens and gardening and overlaps with the range of tools made for agriculture and horticulture . Garden tools can also be hand tool s and power tool s. The hand tools still used by gardeners originated with the earliest agricultural implements used by man Fact date April 2008 the spade , the Hoe tool garden hoe , the pitchfork , the garden fork , the Rake tool garden rake and the plough . The earliest tools were made of wood, flint and bone. The development of metal working, first in copper and later in iron and steel, enabled the manufacture of more durable tools. Industrial metalworking enabled the manufacture of cutting tools, including pruning shears secateurs and grass shears . The first power tool to become popular with gardeners was the lawn mower . This has been followed by a very wide range of power tools, including cultivator s, string trimmer , Irrigation sprinkler s, hedge trimmer s, lawn aerator s, leaf sweeper s, leaf blower s, chainsaw s, and mini tractor s. Environmental impact The exhaust fumes from gas powered equipment is a significant source of air pollution. ref http www.epa.gov air community details yardequip.html Lawn Equipment Improving Air Quality in Your Community ref US emission standard s specifically limit emissions from these small engines. See also Agricultural machinery Antique tool Cutting tool Diamond tool Groundskeeping equipment Hand tool Landscape products Mechanised agriculture Power tool Tool References references External links http www.bbc.co.uk gardening htbg module5 tools.shtml BBC How to be a gardener garden tools types of tools Category Gardening tools nl Tuingereedschap no Hageredskap nn Hagebruksreiskap th ... more details
Image Safety shutoff valve.jpg thumb A diagram of the internal components of a safety shutoff valve Safety shutoff valves are safety valve s used to close a line and stop the flow of material. Some types are manually closed others are automated to act when a preset condition such as a failure in the system occurs. Principle When this type of valve is tripped, the flow is quickly stopped and an indicator disc tells the operator that the electrical circuit has been opened by a failure somewhere in the system. When the system failure has been corrected so that the circuit is again closed, the valve can be opened by the action of the hand lever . If, however, the system failure has not been satisfactorily corrected, the circuit will remain open and moving the hand lever will not open the valve, because the valve stem remains disengaged from the handle. In a solenoid operated safety shutoff valve, a spring action closes the valve instantly when an electric current fails and the solenoid ceases to be energized. The solenoid circuit is generally arranged so that it is broken upon failure of any element of the system. This valve cannot be re opened until the solenoid is again energized. A safety shutoff valve should be fail safe , that is close upon failure of any element of the input control system such as temperature controllers, steam pressure controllers , air pressure , fuel pressure, current from a flame detector , or current from other safety devices such as low water cutoff, and high pressure cutoff. However, sudden closing of a valve in a Pipeline transport piping system may lead to water hammer or Implosion mechanical process implosion so in special cases there may be additional items connected to the shutoff valve, such as a pressure relief valve or an aerator valve. The coil of the valve solenoid must be connected in series with all of the elements. For this to operate, fuel, air and steam pressure can be converted to electrical signals by means of bellow s, a b ... more details
Infobox NRHP name Round Barn, Washington Township nrhp type image caption location Off U.S. Route 218 , Washington Township, Black Hawk County, Iowa lat degrees 42 lat minutes 35 lat seconds 7 lat direction N long degrees 92 long minutes 27 long seconds 40 long direction W locmapin Iowa area built 1917 architect architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001417 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Round Barn, Washington Township is an historic structure located north of Cedar Falls, Iowa in Black Hawk County, Iowa Black Hawk County . It was built in 1917 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 60 feet 18.3m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 05 last first ref The structure is constructed in clay tile and features an aerator and a two pitch roof. ref name Travis References Reflist External links http www.archiplanet.org wiki Round Barn 2C Washington Township 2C Janesville 2C Iowa Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1917 Category Buildings and structures in Black Hawk County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Nelson Round Barn nrhp type image caption location County Road J46, Allerton, Iowa lat degrees 40 lat minutes 42 lat seconds 24 lat direction N long degrees 93 long minutes 20 long seconds 44 long direction W locmapin Iowa area built 1912 architect Emil Cable architecture added November 19, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86003189 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Nelson Round Barn is an historical structure located near Allerton, Iowa Allerton in rural Wayne County, Iowa . It was built in 1912 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 50 feet 15.2 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 10 last first ref It features white vertical siding, an aerator, and a conical roof. ref name Travis References Reflist National Register of Historic Places Category Buildings and structures completed in 1912 Category Buildings and structures in Wayne County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Round Barn, Norway Township nrhp type image caption location Off County Road R60, Norway Township lat degrees 43 lat minutes 29 lat seconds 22 lat direction N long degrees 93 long minutes 35 long seconds 18 long direction W locmapin Iowa area built 1920 architect Emil Cable architecture added February 27, 1987 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 87000507 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Round Barn, Norway Township is an historical round barn located in rural Winnebago County, Iowa . It was built in 1920 and has been listed on the National Register of Historic Places since 1987. ref name nris The building is a true round barn that measures 53 feet 16.2 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 10 last first ref It is constructed of clay tile and it features an aeration aerator , conical roof and a hay dormer on the south side. ref name Travis References Reflist External links http www.archiplanet.org wiki Round Barn 2C Norway Township Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1920 Category Buildings and structures in Winnebago County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Tonsfeldt Round Barn nrhp type image caption location Plymouth County Fairgrounds, LeMars, Iowa lat degrees 42 lat minutes 47 lat seconds 46 lat direction N long degrees 96 long minutes 11 long seconds 11 long direction W locmapin Iowa area built 1918 architect H.P. Tonsfeldt architecture added November 19, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86003194 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Tonsfeldt Round Barn is located on the Plymouth County Fairgrounds in LeMars, Iowa . It was built in 1918 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 82x68 feet 25x 20.7meters . ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 06 last first ref The barn features white horizontal siding, an aerator and a gothic curved roof. ref name Travis References Reflist National Register of Historic Places Category Buildings and structures completed in 1918 Category Buildings and structures in Plymouth County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox nrhp name McCoy Polygonal Barn nrhp type image caption location Off U.S. Route 71 , Hepburn, Iowa lat degrees 40 lat minutes 51 lat seconds 55 lat direction N long degrees 94 long minutes 59 long seconds 9 long direction W locmapin Iowa area built 1914 architect architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001469 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The McCoy Polygonal Barn is an historical structure located near Hepburn, Iowa Hepburn in rural Page County, Iowa . It was built in 1914 and has been listed on the National Register of Historic Places since 1986. ref name nris The hexagon shaped building features white horizontal siding, a large cupola with 12 windows and an aerator. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 11 last first ref References Reflist External links http www.archiplanet.org wiki McCoy Polygonal Barn Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1914 Category Buildings and structures in Page County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Polygonal barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Holtkamp Round Barn nrhp type image caption location Off U.S. Route 218 , Salem, Iowa lat degrees 40 lat minutes 49 lat seconds 17 lat direction N long degrees 91 long minutes 34 long seconds 9 long direction W locmapin Iowa area built 1918 architect B.J. Holtkamp architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001436 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Holtkamp Round Barn is an historical structure located near Salem, Iowa Salem in rural Henry County, Iowa . It was built in 1918 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 50 feet 15.2 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 13 last first ref It is constructed of clay tile and features an aerator, and a two pitch roof. ref name Travis References Reflist External links http www.archiplanet.org wiki Holtkamp Round Barn Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1918 Category Buildings and structures in Henry County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Plagmann Round Barn nrhp type image caption location County Road V66, Conroy, Iowa lat degrees 41 lat minutes 43 lat seconds 30 lat direction N long degrees 92 long minutes 3 long seconds 11 long direction W locmapin Iowa area built 1912 architect Charles & Richard Plagmann architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001440 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Plagmann Round Barn is an historical structure located near Conroy, Iowa Conroy in rural Iowa County, Iowa . It was built in 1912 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 100 feet 30.5 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 13 last first ref It is constructed of clay tile and features an aerator, a two pitch roof and a 16 foot 4.9 m central silo . ref name Travis References Reflist External links http www.archiplanet.org wiki Plagmann Round Barn Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1912 Category Buildings and structures in Iowa County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Round Barn, Cooper Township nrhp type image caption location Iowa Highway 141 , Cooper Township lat degrees 42 lat minutes 7 lat seconds 59 lat direction N long degrees 95 long minutes 44 long seconds 14 long direction W locmapin Iowa area built 1921 architect Seth Smith architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001463 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Round Barn, Cooper Township is located in Cooper Township near Mapleton, Iowa Mapleton in rural Monona County, Iowa . It was built in 1921 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 38 feet 11.6 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 25 last first ref The barn features white vertical siding, a Cone geometry conical roof, and an aerator. ref name Travis References Reflist External links http www.archiplanet.org wiki Round Barn 2C Cooper Township Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1921 Category Buildings and structures in Monona County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Eckle Round Barn nrhp type image caption location Off Iowa Highway 168, Shelby, Iowa lat degrees 41 lat minutes 3 lat seconds 39 lat direction N long degrees 94 long minutes 59 long seconds 1 long direction W locmapin Iowa area built 1928 architect Richard Eckle br Ed Brown,et al architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001470 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Eckle Round Barn was located near Shelby, Iowa Shelby in rural Pottawattamie County, Iowa . It was built in 1928 and has been listed on the National Register of Historic Places since 1986. ref name nris The building was a true round barn that measured 54 feet 16.5 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 25 last first ref The barn featured white horizontal siding, a two pitch sectional roof, aerator and a 14 foot 4.3 m silo . ref name Travis The structure has subsequently been torn down. References Reflist External links http www.archiplanet.org wiki Eckle Round Barn Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1928 Category Buildings and structures in Pottawattamie County, Iowa Category National Register of Historic Places in Pottawattamie County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox nrhp name Round Barn, Buckingham Township nrhp type image caption location Off U.S. Route 63 , Buckingham Township, Tama County, Iowa lat degrees 42 lat minutes 17 lat seconds 1 lat direction N long degrees 92 long minutes 28 long seconds 35 long direction W locmapin Iowa area built 1920 architect John Ames architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001441 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Round Barn, Buckingham Township is an historic structure located north of Traer, Iowa Traer in Tama County, Iowa , United States . It was built in 1920 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that measures 50 feet 15 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 02 02 last first ref The structure is constructed in clay tile and features an aerator and a segmented two pitch roof. ref name Travis References Reflist External links http www.archiplanet.org wiki Round Barn 2C Buckingham Township Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1920 Category Buildings and structures in Tama County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox nrhp name Wickfield Round Barn nrhp type image caption location Off Iowa Highway 2 , Cantril, Iowa lat degrees 40 lat minutes 40 lat seconds 4 lat direction N long degrees 92 long minutes 1 long seconds 23 long direction W locmapin Iowa area built 1919 architect Alva Hunt architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001447 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Wickfield Round Barn is a historic structure located near Cantril, Iowa Cantril in rural Van Buren County, Iowa , United States . It was built in 1919 and has been listed on the National Register of Historic Places since 1986. ref name nris The building measures 52 x 65 feet 15.8 x 19.8 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 02 02 last first ref The structure is constructed of clay tile and features an aerator. The two pitch roof features eight dormer s on the lower part and four dormers on the upper part of the roof. ref name Travis References Reflist External links http www.archiplanet.org wiki Wickfield Round Barn Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1919 Category Buildings and structures in Van Buren County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox nrhp name Thomas Johnson Polygonal Barn nrhp type image caption location Off Iowa Highway 114, Wellman, Iowa lat degrees 41 lat minutes 26 lat seconds 21 lat direction N long degrees 91 long minutes 49 long seconds 44 long direction W locmapin Iowa area built architect Thomas Johnson architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001448 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Thomas Johnson Polygonal Barn is an historic structure located near Wellman, Iowa Wellman in rural Washington County, Iowa , United States . The NRHP calls it the Thomas Jordan Polygonal Barn, but then attributes it to Thomas Johnson. It has been listed on the National Register of Historic Places since 1986. ref name nris The 16 sided building measures 40 feet 12.2 m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 02 02 last first ref The structure is covered in red vertical siding and is topped by a sectional Cone geometry conical roof, with windows on the south side and an aerator. ref name Travis References Reflist External links http www.archiplanet.org wiki Jordan 2C Thomas 2C Polygonal Barn Archiplanet listing National Register of Historic Places DEFAULTSORT Johnson, Thomas, Polygonal Barn Category Buildings and structures in Washington County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Polygonal barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name William Oakland Round Barn nrhp type image caption location Off U.S. Route 69 , Blairsburg, Iowa lat degrees 42 lat minutes 29 lat seconds 11 lat direction N long degrees 93 long minutes 38 long seconds 0 long direction W locmapin Iowa area built 1910 architect architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001434 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The William Oakland Round Barn is an historic structure located near Blairsburg, Iowa Blairsburg in rural Hamilton County, Iowa , United States . It was built in 1910 and has been listed on the National Register of Historic Places since 1986. ref name nris The true round barn measures 50 feet 15.2 m around. ref name travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barns List publisher Dale Travis accessdate 2011 02 02 last first ref It is constructed of clay tiles and features a Cone geometry conical roof, aerator, a small dormer on the west side and a larger one on the east side and a 16 foot 4.9 m central silo . ref name travis References Reflist External links http www.archiplanet.org wiki Oakland 2C William 2C Round Barn Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1910 Category Buildings and structures in Hamilton County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox nrhp name Round Barn, Millville Township nrhp type image caption location U.S. Route 52 , Millville Township, Clayton County, Iowa lat degrees 42 lat minutes 42 lat seconds 56 lat direction N long degrees 91 long minutes 5 long seconds 4 long direction W locmapin Iowa area built 1916 architect Xavier Jacque architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001423 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Round Barn, Millville Township is an historical structure located in rural Clayton County, Iowa , United States . It was built in 1916 and has been listed on the National Register of Historic Places since 1986. ref name nris The building is a true round barn that is covered in metal vertical siding and features a dome roof, a cupola with an aerator and a central silo . ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 02 03 last first ref References Reflist External links http www.archiplanet.org wiki Round Barn 2C Millville Township Archiplanet listing National Register of Historic Places Category Buildings and structures completed in 1916 Category Buildings and structures in Clayton County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
Infobox NRHP name Fred W. Meier Round Barn nrhp type image Fred W. Meier Round Barn.jpg caption location Off Iowa Highway 9 , Ludlow, Iowa lat degrees 43 lat minutes 14 lat seconds 3 lat direction N long degrees 91 long minutes 28 long seconds 34 long direction W locmapin Iowa area built 1912 architect Fred W. Meier architecture added June 30, 1986 governing body Private mpsub Iowa Round Barns The Sixty Year Experiment TR refnum 86001411 ref name nris cite web url http www.nps.gov nr title National Register Information System date 2010 11 08 work National Register of Historic Places publisher National Park Service ref The Fred W. Meier Round Barn was an historic structure located near Ludlow in rural Allamakee County, Iowa . It was built in 1912 and has been listed on the National Register of Historic Places since 1986. ref name nris The building was a true round barn that measures 56 feet 17m around. ref name Travis cite web url http www.dalejtravis.com rblist rbia.htm title Iowa Round Barn List publisher Dale Travis Barn List accessdate 2011 01 05 last first ref The bottom half of the barn was constructed in stone and featured red horizontal siding, 2 pich conical roof, aerator and an internal wood stave silo . ref name Travis The structure was destroyed in a thunderstorm during the night on July 27, 2002. ref cite web url http www.dalejtravis.com barn iowa htm ia00305.htm title IA00305 publisher Dale Travis Barn List accessdate 2011 01 05 last first ref References Reflist External links http www.archiplanet.org wiki Meier 2C Fred W. 2C Round Barn Archiplanet listing National Register of Historic Places DEFAULTSORT Meier, Fred W., Round Barn Category Buildings and structures completed in 1912 Category Buildings and structures in Allamakee County, Iowa Category Barns on the National Register of Historic Places in Iowa Category Round barns in Iowa Iowa NRHP stub Iowa struct stub ... more details
aerators to increase atmospheric oxygen transfer, but aerator mixing depth should not re suspend anaerobic sludge from the bottom of the lagoon. Aerator operation may be limited to periods of heavy ... more details
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