 | John Smeaton - Water-wheels - 1760 - 96 pages
...oblique one of the fame dimenficns ; but that in an horizontal windmill, little more than one fail can be acting at once : whereas in the common windmill, all the four aft together : and therefore, fuppofing each vane of an horizontal windmill, .of the fame dimenfions... | |
 | Olinthus Gregory - Mechanical engineering - 1806 - 590 pages
...oblique one of the fame dlfnenfions ; but that in an horizontal windmill little more than one fail can be acting at once : whereas in the common windmill, all the four a£t together ; and therefore, fuppofing each vane of an horizontal windmill to be of the fame fize... | |
 | Royal Society (Great Britain) - Meteorology - 1809 - 778 pages
...capable of a less power, VOL. xi. . 3 B than an oblique one of the same dimensions ; but that in a horizontal windmill, * little more than one sail can...at once : whereas in the common windmill, all the 4 act together : and therefore, supposing each vane of a horizontal windmill, of the same dimensions... | |
 | John Smeaton - Civil engineering - 1814 - 276 pages
...oblique one of the fame dimenfions ; but that in an horizontal windmill, little more than one faiL can be acting at once : whereas in the common windmill, all the four act together : and therefore, fuppofing each vane of an horizontal windmill, of the fame dimenfions as each vane of the vertical,... | |
 | Olinthus Gregory - Mechanical engineering - 1815 - 582 pages
...directly opposed to the wind, is capable of a less power than an oblique one of the same diriiehsions; but that in an horizontal windmill little more than...each vane of an horizontal windmill to be of the same site with that of a vertical one, it is manifest that the power of a vertical mill will be four times... | |
 | Olinthus Gregory - Mechanical engineering - 1815 - 632 pages
...sail, when directly opposed to the wind, is capable of a less power than an oblique one of the snme dimensions; but that in an horizontal windmill little...windmill, all the four act together; and therefore, supposiug each vane of an horizontal windmill to be of the same size with that of a vertical one, it... | |
 | Encyclopedias and dictionaries - 1816 - 762 pages
...an oblique one of the fame dimenfions; but that in an horizontal-windmill liti'.e more than one fail can be acting at once: whereas, in the common windmill, all the four -ict together -r and therefore, fuppofing each vane of an horizontal windmill to be of the lame fize... | |
 | Olinthus Gregory - Mechanical engineering - 1826 - 606 pages
...to the wind, is capable of a less power than an oblique one of the same dimensions ; but that in a horizontal windmill little more than one sail can...act together ; and therefore, supposing each vane of a horizontal windmill to be of the same size with that of a vertical one, it is manifest that the power... | |
 | Thomas Tredgold - Hydraulic engineering - 1836 - 288 pages
...to the wind, is capable of a less power than an oblique one of the same dimensions ; but that, in a horizontal windmill, little more than one sail can...together : and, therefore, supposing each vane of a horizontal windmill, of the same dimensions as each vane of the vertical, it is manifest the power... | |
 | 1879 - 542 pages
...to the wind, is capable of a less power than an oblique one of the same dimensions ; but that, in a horizontal wind-mill, little more than one sail can...act together : and therefore, supposing each vane of a horizontal wind-mill, of the same dimensions as each vane of the vertical, it is manifest the power... | |
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... horizontal windmill, little more than one sail can be acting at once : whereas, in the common windmill, all the four act together : and, therefore, supposing each vane of a horizontal windmill, of the same dimensions as each vane of the vertical,... 
