 | Alexander Jamieson - Mechanics - 1845 - 572 pages
...hold of the vessel But the same machine will raise sand or any body that can pass within the tube. For if a screw thus formed be placed obliquely, so as...inclined than the part before it, so that the body ia urged forward and consequently ascends. If the screw used in this manner, be turned with great rapidity,... | |
 | Alexander Jamieson - Mechanics - 1850 - 516 pages
...of the vessel. But the same machine will raise sand or any body that can pass within the tube. For if a screw thus formed be placed obliquely, so as...overcome its gravity, in which case it will descend.* The coining engine which consists of a screw carrying ponderous arms acts by a kind of percussion :... | |
 | Thomas Antisell - Industrial arts - 1852 - 728 pages
...horizon. If anv body, then, be placed within the spiral at this part, it will remain at rest; and if the screw be turned the body will ascend, because...it becomes more inclined than the part before it, and it is consequently urged forward. This simple but ingenious contrivance is usually employed for... | |
 | Jeremiah Joyce - Astronomy - 1852 - 606 pages
...round a cylinder in the form of a screw: and if this be placed obliquely in water or other fluid, and the screw be turned, the body will ascend, because...it becomes more inclined than the part before it, and it is consequently urged forward and advances up the spiral, where it empties into a vessel or... | |
 | G.P. Putnam & Co - 1852 - 728 pages
...spiral at this part, it will remain at rest : and if the screw be turned the body will ascend, becanse the part of the screw behind it becomes more ! inclined than the part before it, and it is | consequently urged forward. This simJ pie but ingenious contrivance is usually employed... | |
 | William Thomas Brande, George William Cox - Encyclopedias and dictionaries - 1867 - 1090 pages
...horizon. If any body, then, be placed within the spiral at this part, it will remain at rest; and if the screw be turned the body will ascend, because...it becomes more inclined than the part before it, and it is consequently urged forward. This simple but ingenious contrivance is usually employed for... | |
 | William Thomas Brande, George William Cox - Encyclopedias and dictionaries - 1867 - 1090 pages
...any body, then, be placed within the spiral at this part, it will remain at rest; and if the screw I* turned the body will ascend, because the part of the...it becomes more inclined than the part before it, and it is consequently urged forward. This simple but ingenious contrivance is usually employed for... | |
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For if a screw thus formed be placed obliquely, so as to make with the vertical, an angle equal to that which the spiral makes with the lines parallel to the axis, there will be in each turn of the spiral a part parallel to the horizon, where, if a body... 