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Topic: Paddle wheel


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In the News (Sun 21 Jul 19)

  
 Paddle steamer -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
A paddle steamer, paddleboat, or paddlewheeler is a (A vessel that carries passengers or freight) ship driven by one or more paddle wheels driven by a (External-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder) steam engine.
The first paddle steamer was the Pyroscaphe built by Marquis Claude de Jouffroy of (A city in east-central France on the Rhone River; a principal producer of silk and rayon) Lyons in (A republic in western Europe; the largest country wholly in Europe) France, built in 1783.
In oceangoing service, the paddle steamer became obsolete rather quickly with the invention of the screw (A mechanical device that rotates to push against air or water) propeller, but they remained in use in coastal service, thanks to their shallow draught and good maneuverability.
www.absoluteastronomy.com /encyclopedia/p/pa/paddle_steamer.htm   (840 words)

  
 Paddle steamer - Wikipedia, the free encyclopedia
A paddle steamer, paddleboat, or paddlewheeler is a ship or boat propelled by one or more paddle wheels driven by a steam engine.
The first sea-going trip of a paddle steamer was that of the Albany in 1808, which steamed from the Hudson River along the coast to the Delaware River.
There are two basic ways to mount paddle wheels on a ship; a single wheel on the rear, known as a stern-wheeler, and a paddle wheel on each side, known as a side-wheeler.
en.wikipedia.org /wiki/Paddle_wheel   (1030 words)

  
 paddle - definition by dict.die.net
Paddle box, the structure inclosing the upper part of the paddle wheel of a steam vessel.
Eng.] Paddle steamer, a steam vessel propelled by paddle wheels, in distinction from a screw propeller.
Paddle wheel, the propelling wheel of a steam vessel, having paddles (or floats) on its circumference, and revolving in a vertical plane parallel to the vessel's length.
dict.die.net /paddle   (309 words)

  
 Paddle wheel rotorcraft - Patent 5265827
Forward paddle wheel 62 and aft paddle wheel 66 are pivotably mounted to and extend laterally away from the port side of the fuselage 60, and forward paddle wheel 64 and aft paddle wheel 68 are pivotably mounted to and extend laterally away from the starboard side of the fuselage 60.
Aft paddle wheels 66, 68 are mounted to the fuselage 70 for rotation about a second common axis generally parallel to the first common axis and laterally spaced from the first common axis between the first common axis and the tail of fuselage 70.
Pitch control is achieved by differentially adjusting the strokes of the actuators and the pivot angle of the blades of the forward paddle wheels 62, 64 relative to the strokes of the actuators and the pivot angles of the blades of the aft paddle wheels 66, 68.
www.freepatentsonline.com /5265827.html   (6795 words)

  
 [No title]   (Site not responding. Last check: 2007-10-08)
The paddles of the wheel may be constructed to minimise resistance to the flow of oncoming water above the transverse axis of the wheel.
A rotary member 9, for example in the form of a paddle wheel, is mounted in the region of the downstream end of the base 1 and is provided for extracting energy from the water flow.
The arrangement is such that the paddle blades are urged against the central core when generating power to cause the paddle wheel to rotate, but when not generating power are free to rotate and present minimal resistance to the flowing water.
www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/06120.010125&ELEMENT_SET=DECL   (2833 words)

  
 PADDLE - LoveToKnow Article on PADDLE   (Site not responding. Last check: 2007-10-08)
The verb seems to be a frequentative form of " pad," to walk, cognate with " path," or of "pat," to strike gently, an onomatopoeic word; it may have been influenced by the Fr.
The verb may have given rise to "paddle," an oar, an easy transition in sense; but the New English Dictionary identifies this with the word for a small spade, which occurs earlier than the verb, and seems to have no connection in sense with it.
a shovel used in mixing materials in glass-making, in brick-making, andc., and also to the float-boards in the paddle-wheel of a steamboat or the wheel of a water-mill.
www.87.1911encyclopedia.org /P/PA/PADDLE.htm   (232 words)

  
 Paddle wheel   (Site not responding. Last check: 2007-10-08)
The paddle wheel is a large wheel, generally built of a steel framework, upon the outer edge of which are fitted numerouspaddle blades (called floats).
In oceangoing service, the paddle steamer became obsolete rather quickly with the invention of the screw propeller, but they remained in use in coastal service, thanks to their shallow draughtand good maneuverability.
Some paddle steamers still operate on the MississippiRiver, as do a couple in the United Kingdom; the coastal paddle steamer PS Waverley, built for service in the Firth of Clyde, is the last seagoing paddle steamer in operationanywhere in the world.
www.therfcc.org /paddle-wheel-59254.html   (763 words)

  
 Troubled Times: Paddle Wheel   (Site not responding. Last check: 2007-10-08)
The axle of the paddle wheel would be attached to the rear axle of the car and extend parallel to the ground over to the tree trunk.
The front wheel axle and wheel hub assembly taken off the car could be mounted on the tree stump such as to carry the weight and wind forces of the paddle wheel.
Optimum height and width of the paddle blades for the paddle wheel.
www.zetatalk.com /energy/tengy02n.htm   (441 words)

  
 Pond Aeration
The maximum rotational speed of a tractor-powered paddle wheel aerator for extended operation is limited by the tractor, its recommended power takeoff speed under load, and the gear reduction of the paddle wheel.
Electric paddle wheel units are 4 to 12 feet long with paddles of triangular cross section and a total drum diameter of about 28 to 36 inches.
Paddle wheel speed is usually 80 to 90 rpm with a paddle depth of about 4 inches, enough to load the motor.
midwest.fws.gov /ashland/mtan/mtan_16.html   (4926 words)

  
 Paddle wheel   (Site not responding. Last check: 2007-10-08)
Solanas Paddle Club argentino de paddle, ofrece información sobre su ubicación, clases, raquetas y sobre el paddle en general.
Friends of the Dog Park First Annual Dog Paddle Photos and info from Friends of the Dog Park's First Annual Dog Paddle at Woodland Pool in Lexington, KY. Proceeds from the Dog Paddle go to the creation and maintenance of off-leash dog parks in Fayette County.
Paddle Tennis Resource, with West Coast emphasis, for Paddle Tennis instruction, gear, tournaments, gear and rankings.
www.serebella.com /encyclopedia/article-Paddle_wheel.html   (345 words)

  
 paddle wheel --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-08)
Early experiments with steam-driven paddles acting as oars led several inventors, including Robert Fulton, to mount the paddles in a wheel form, either at the stern or at the sides of the vessel.
Its stern paddle wheel was to be driven by a...
Roman engineers during the 1st century BC, however, are known to have built upright paddle wheels that turned with the current of a river.
www.britannica.com /eb/article-9057941?tocId=9057941   (751 words)

  
 BBC - History - Paddle Steamship Animation   (Site not responding. Last check: 2007-10-08)
The Paddle Steamer shown in the above animation is simplified to show the principle of steam generating paddle motion.
There have undoubtably been paddle steamers which have used such a simple engine, but most large sea going paddle steamers such as the Waverly, launched in 1946, used 3 double acting cylinders.
In larger engines there were two paddle wheels - one on each side of the ship which drove it through the water.
www.bbc.co.uk /history/games/paddle/paddle.shtml   (210 words)

  
 wheel080901
The bright red paddle wheel that is the centerpiece of the future National Steamboat Monument on the Cincinnati Public Landing is a fake.
A paddle wheel once used on the American Queen was supposed to be the monument focal point, and there was much fanfare when it was donated by the Delta Queen Steamboat Co. six years ago.
Scrapping the paddle wheel would be ''the worst thing I have ever heard,'' said Virginia Bennett of Covington, a longtime river watcher and former assistant purser on the Delta Queen.
www.cincypost.com /2001/aug/09/wheel080901.html   (861 words)

  
 Waverley in Dry Dock - Third Report   (Site not responding. Last check: 2007-10-08)
The section of the shaft that is slotted is the part that passes through the bobbin (hub) of the paddle wheel.
The next picture shows the starboard paddle wheel and feathering gear in place with one of the feathering radius rods fitted to a paddle float bracket near to the camera and running up to the Jenny Nettles at the top, centre of the picture.
Therefore, to ensure the optimum performance the paddle wheel it will be necessary to relocate the Jenny Nettles accurately on the spring beam (in this view the spring beam is obscured by a scaffold board).
www.btinternet.com /~Paddlers/PSWaverley/articles05/drydock3   (754 words)

  
 Paddle Wheel Technology from Cancoppas Limited
These flow meters consist of a paddle wheel located in the flow path of the flow meter.
As fluid flow causes the paddle wheel to rotate, an electrical (AC) voltage is generated in a magnetic pick up coil, mounted on the meter housing (body), located immediately adjacent to the flow path.
As each paddle wheel passes through the magnetic field, a pulse is generated.
www.cancoppas.com /flow_paddle%20_wheel_technology.htm   (108 words)

  
 Innovadyne > Products > Accessories and Components > Paddle Wheel Stirrer
The paddle wheel for the reservoir is made with Parylene-coated stainless steel and has a PTFE bearing at the end that fits into a locating bearing notch in the reservoir.
This keeps the paddle wheel in precise location in the reservoir and prevents it from touching the bottom of the reservoir.
Motor not in contact with paddle wheel; the paddle is turned by a small electric motor magnetically coupled to the paddle through the wall of the reservoir.
www.innovadyne.com /products_paddle_wheel.html   (343 words)

  
 [hpv-boats] Re: Sabre-paddle-wheels-of-whale-tail-death
The problem with radial (conventional) paddle wheels is not so much that the blades aren't vertical but as Bob identifies, the blade speed changes.
The blade on a radial paddle wheels changes its speed between when the blade enters and exits - slowest - and the mid stroke position where the blade travels the fastest.
This arrangement also put the wheel in the lee of the main house, and the working part of the blades in the favorable current created by the flat-bottom hull ahead.
www.ihpva.org /pipermail/hpv-boats/2000q4/000511.html   (664 words)

  
 The Paddle Wheel   (Site not responding. Last check: 2007-10-08)
The existing paddle wheel, as constructed by Spinney (2003) had proved satisfactory is terms of operation, but was hampered by operational problems.
The wheel is of a robust aluminium and perspex construction and incorporates the seawall, drive mechanism and tank mounting points.
The paddle wheel was constructed at the University of Edinburgh, School of Engineering and Electronics workshop.
www.eng.ed.ac.uk /~jchick/Y5/Projects/04davey/paddle.html   (272 words)

  
 paddle081001
The bright red paddle wheel about 50 feet in the air on the Cincinnati Public Landing is a same-scale replica, save for a few original wooden bucket boards.
The original paddle wheel from the American Queen has sat in a Wilder equipment yard since it arrived in the area in 1995.
The paddle wheel was to be displayed at the National Steamboat Monument on the Cincinnati riverfront, but when designers discovered it would cost about $443,000 to repair it, they went with a $265,000, lighter-weight replica instead.
www.kypost.com /2001/aug/10/paddle081001.html   (531 words)

  
 Flow Measurement Laboratory
If the paddle wheel sensor were a positive displacement measurement device, the volume of fluid going through the device would always produce a certain rotation of the shaft.
However, for the paddle wheel sensor, variables such as the portion of the flow hitting the wheel, drag on the wheel, the alignment of the flow velocity vector relative to the surfaces of the vanes, etc. affect the relationship between flow rate and rotation velocity.
We have used a paddle wheel transducer, a mass-flow controller, and a rotameter to measure the flow rate in an enclosed pipe.
www.mines.edu /academic/courses/eng/EGGN383/mel2/flow   (6108 words)

  
 Encyclopedia of San Francisco
Paddle Wheels on San Francisco's Waterfront: The gentle splash of a paddle wheel - the deep tones of a steam whistle - fl smoke billowing from a riverboat's stack.
That represents roughly a million miles of water travel, comparable in distance to four trips to the moon.
They did it all by steam and paddle wheel - without radar, depth finders, or other sophisticated navigational aids - and without one serious accident.
www.sfhistoryencyclopedia.com /articles/s/steamboat.html   (1683 words)

  
 Electrical Components of Printed Circuit Board Design   (Site not responding. Last check: 2007-10-08)
The hydraulic analog for an inductor (Figure 3-7) is a paddle wheel with significant mass.
As long as there is pressure behind it, the paddle wheel will continue to speed up until it reaches an equilibrium with the flow.
The force will continue to speed up the wheel until the wheel reaches an equilibrium speed such that all the water will flow unimpeded around the loop and there will be no pressure at all across the wheel.
www.phptr.com /articles/article.asp?p=169477&seqnum=8   (1460 words)

  
 Chapter Package <i>to</i> Pagan of P by Webster's Dictionary (1913 Edition)
To dabble in water with hands or feet; to use a paddle, or something which serves as a paddle, in swimming, in paddling a boat, etc.
a steam vessel propelled by paddle wheels, in distinction from a screw propeller.
the propelling wheel of a steam vessel, having paddles (or floats) on its circumference, and revolving in a vertical plane parallel to the vessel's length.
www.bibliomania.com /2/3/257/1207/23567/4.html   (307 words)

  
 Paddle Tugs   (Site not responding. Last check: 2007-10-08)
a former River Tees paddle tug, built by Bow Mclachlan of Paisley in 1931, lies deteriorating on a slip on the River Medway near the Chatham Historic Dockyard.
She is now in the Core Collection of the National Register of Historic Vessels and whilst this does not guarantee her survival, it recognises her historical importance and means that she will not be allowed to disappear unnoticed.
Withdrawn in 1974, she was the last of a long line of paddle tugs operating on the Elbe in the German Democratic Republic, and her role in preservation is as a museum and memorial to her type.
myweb.tiscali.co.uk /tramways/PaddleTugs.htm   (478 words)

  
 [hpv-boats] Optimal wheel size for paddle boat
That is why the riverboat paddle wheelers used such large wheels.
If you go for an open wheel, such as the one I use with Dakanu (http://snorlax.lampi.org/mike/dakanu.html), which uses a pair of 27" bicycle rims to which are welded angle brackets for the paddles and the spokes and hub, then the windage is actually very little.
The paddles are only about 3 inches wide x 5 inches long.
www.ihpva.org /pipermail/hpv-boats/2002q4/003498.html   (519 words)

  
 wecker082101
First, there was the story about how the steamboat paddle wheel that's to be the focal poin t of the National Steamboat Monument on the Cincinnati Public Landing is a phony baloney.
Indeed, the official commission line was that the original wheel needed extensive repairs, th at its wooden planks were rotting and that the rot would spread when exposed to the steam of whistles to be incorporated i nto the monument's design.
In the case of the paddle wheel, h e'd donated his services to the Tall Stacks Commission to oversee the shipment of the paddle wheel from New Orleans to Ci ncinnati in 1996.
www.cincypost.com /2001/aug/21/wecker082101.html   (719 words)

  
 Paddle - OneLook Dictionary Search   (Site not responding. Last check: 2007-10-08)
) One of the broad boards, or floats, at the circumference of a water wheel, or paddle wheel.
) The broad part of a paddle, with which the stroke is made; hence, any short, broad blade, resembling that of a paddle.
OPTED is a public domain English word list dictionary, based on the public domain portion of "The Project Gutenberg Etext of Webster's Unabridged Dictionary" which is in turn based on the 1913 US Webster's Unabridged Dictionary.
www.onelook.com /?other=web1913&w=Paddle   (223 words)

  
 Troubled Times: Paddle Wheel   (Site not responding. Last check: 2007-10-08)
Years ago it used to get really cold here in Kansas and paddle wheels were used to churn small stock ponds so the cattle could get water.
When used in this manner, the paddle would be completely submerged and there might be a thin layer of ice on the pond, but the cattle could easily break this themselves.
Most of these paddles were powered by electric motors, but in windy conditions, a windmill would work.
www.zetatalk.com /food/tfood03u.htm   (139 words)

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