Propeller
[prə'pelə] or [prə'pɛlɚ]
Definition
(noun.) a mechanical device that rotates to push against air or water.
Typed by Arlene--From WordNet
Definition
(n.) One who, or that which, propels.
(n.) A contrivance for propelling a steam vessel, usually consisting of a screw placed in the stern under water, and made to revolve by an engine; a propeller wheel.
(n.) A steamboat thus propelled; a screw steamer.
Editor: Lorna
Examples
- The propeller was the only part of their airship they had not studied when they began to build. Rupert S. Holland. Historic Inventions.
- In 1784, Mr. Bramah obtained a patent for a propeller similar in its forms to the vanes of a windmill, which by acting obliquely on the water as it revolved, pushed the boat forward. Frederick C. Bakewell. Great Facts.
- This inconvenience was experienced in the early progress of Steam Navigation, and many attempts were made to overcome it, by substituting a different kind of propeller. Frederick C. Bakewell. Great Facts.
- John Stevens of New Jersey was also at work on a steamboat, and had in 1804 built such a boat at his shops, having a screw propeller and a flue boiler. William Henry Doolittle. Inventions in the Century.
- After numerous experiments, in which the dimensions of the screw were successively diminished, the propeller was at length reduced to two oblique blades. Frederick C. Bakewell. Great Facts.
- But it was left to John Ericsson, that great Swedish inventor, going to England in 1826 with his brain full of ideas as to steam and solar engines, to first perfect the screw-propeller. William Henry Doolittle. Inventions in the Century.
- John Stevens constructed a boat on the Hudson, driven by a Watt engine, and having a tubular boiler of his own invention and a twin screw propeller. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Ten years afterwards, an aquatic propeller was patented by Mr. William Lyttleton, a merchant in London. Frederick C. Bakewell. Great Facts.
- The cranks of her propeller shafts, like those of the Kaiser Wilhelm and the Oceanic, are set according to the Schlick system, to reduce vibration. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Stevens in America and John Ericsson in England had brought forward the screw propeller; and Ericsson was the first to couple the engine to the propeller shaft. William Henry Doolittle. Inventions in the Century.
- The first ship fitted with the screw propeller was called the Archimedes. Frederick C. Bakewell. Great Facts.
- I had reached the area of eternal ice when my port propeller jammed, and I dropped to the ground to make repairs. Edgar Rice Burroughs. The Gods of Mars.
- The advantages of the propeller are becoming every year more appreciated, and it is rapidly superseding the paddle-wheel. Frederick C. Bakewell. Great Facts.
- The engines were coupled directly to the propeller shafts, which feature was one of Ericsson’s improvements, and has continued to be the approved form to this day. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- The results of the working of that experimental ship were so satisfactory, that other ships were soon built, with modifications of the form of the propeller. Frederick C. Bakewell. Great Facts.
- Orders were shouted, but it was too late to save the giant propellers, and with a crash we rammed them. Edgar Rice Burroughs. The Gods of Mars.
- It was coming from the left and they could see the round disks of light the two propellers made. Hemingway, Ernest. For Whom The Bell Tolls.
- Then it began to rise, moving straight ahead again for three or four hundred feet, the propellers picking up their former rate. Walter Libby. An Introduction to the History of Science.
- He saw the twin circles of light where the sun shone on the propellers as they came. Hemingway, Ernest. For Whom The Bell Tolls.
- We could hear the men working on the broken propellers, and from the port-hole we could see that the vessel was drifting lazily toward the south. Edgar Rice Burroughs. The Gods of Mars.
- The earliest, most successful demonstrations of screw propellers and paddle wheels in steam vessels in the century were the construction and use of a boat with twin screws by Col. William Henry Doolittle. Inventions in the Century.
- At the end of one minute and twenty seconds the propellers began to slow down owing to the exhaustion of fuel. Walter Libby. An Introduction to the History of Science.
- In screw propellers, Woodcroft in 1832, and Griffiths at a later period, made valuable improvements. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- She had two propellers on the same axis, but revolving in opposite directions, one being on the central shaft and the other on a concentric tube. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Side wheel steamers for inland waters, and screw propellers for sea service, however, in time established their fitness for their respective scenes of action. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- Like a bolt from a crossbow my splendid craft shot its steel prow straight at the whirring propellers of the giant above us. Edgar Rice Burroughs. The Gods of Mars.
- Presently our downward motion ceased, and I could hear the propellers swirling through the water at our stern and forcing us ahead at high speed. Edgar Rice Burroughs. The Gods of Mars.
- John Stevens applies twin Screw Propellers in Steam Navigation. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- After a few minutes the propellers ceased their whirring. Edgar Rice Burroughs. The Gods of Mars.
- Wilbur Wright, at the rear, turned the propellers and started the motor. Rupert S. Holland. Historic Inventions.
Typist: Lottie