 | 1771 - 450 pages
...worm makes with the axis of the cylinder continually decreases, and the pitch or distance between the coils or revolutions of the spiral continually increases...part of it which forms the greatest angle with the shnfl, acts upon the water, it gives to it an impetus or motion towards the back end of the paddle,... | |
 | William Newton, Charles Frederick Partington - 1832 - 504 pages
...construction is as follows: — Vox,, i. xx On the spiral paddle being made to revolve in the water, the commencement of the spiral blade, or that part...greatest angle with the shaft, acts upon the water, and gives to it an impetus or motion towards the back end of the paddle, thus creating a current in... | |
 | 1832 - 502 pages
...*55£s55S3 tees fi> "o'otioaf r/'t* Wl the On the spiral paddle being made to revolve iu the water, the commencement of the spiral blade, or that part...greatest angle with the shaft, acts upon the water, and gives to it an impetus or motion towards the back end of the paddle, thus creating a current in... | |
 | Luke Hebert - 1832 - 372 pages
...makes with the axis of the cylinder, continually decreases, and the pitch or dis-tance between the coils or revolutions of the spiral continually increases throughout the whole length; the effects of which ar-rangement the patentee asserts are as follows. The spiral paddle being made... | |
 | Charles Frederick Partington - 1836 - 390 pages
...length. The effect of this construction is as follows : On the paddle being made to revolve in the water, the commencement of the spiral blade, or that part...greatest angle with the shaft, acts upon the water, and gives to it an impetus or motion towards the back end of the paddle, thus creating a current in... | |
 | Perry Fairfax Nursey - 1843 - 678 pages
...distance, between the coils or revolutions of the spiral continually increases throughout * R" • the whole length of the shaft or Cylinder, upon which the spiral is • «i • For a fuller account of this invention by Mr. Hawkins, see our current vol. p. 210. -T..... | |
 | 1844 - 950 pages
...makes with the axis of the cylinder, continually decreases, and the pitch, or distance, between the coils, or revolutions of the spiral, continually increases...in the water, when the commencement of the spiral biade,or that part of it which forms the greatest angle with the shaft, acts upon the water, it gives... | |
 | Royal society of arts - 1847 - 634 pages
...worm makes with the axis of the cylinder continually decreases, and the pitch or distance between the coils or revolutions of the spiral continually increases...is formed, the effect of which construction is as follows:—The spiral paddle being made to rotate in the water, when the commencement of the spiral... | |
 | John Bourne - 1852 - 360 pages
...worm makes with the axis of the cylinder continually decreases, and the pitch or distance between the coils or revolutions of the spiral continually increases,...throughout the whole length of the shaft or cylinder." This is the principle of the expanding or varying pitch, — enunciated long before by Emerson, introduced... | |
 | Patent office - 1858 - 370 pages
...makes with the axis of the cylinder " continually increases, and the pitch or distance between the coils " or revolutions of the spiral continually increases...shaft or cylinder upon which the spiral is " formed." Two, three, four, or more spiral blades on cylinders are applied at the sides of a vessel in recesses,... | |
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... a spiral worm, blade, or screw coiled round a shaft or cylinder of any convenient length and diameter, in such form that the angle of inclination which the worm makes with the axis of the cylinder continually decreases, and the pitch or distance between... 
