| The Henry Ford Museum in Dearborn, Michigan houses a Watt rotative engine manufactured in 1788 by Charles Summerfield. |
| This high rotative velocity of the sun must cause an equatorial rise of the solar atmosphere. |
| Watt had perfected, with the aid of Murdoch, both the pumping-engine and the rotative steam-engine for application to mills. |
| The Crossness Pumping Station was the key element, housing as it did, four magnificent rotative beam engines built by James Watt and Company. |
| Railway engineers looked on with envy at these smooth running rotative engines, which required no balancing and had no reciprocating motion to bedevil things. |
| In a rotative beam engine, the piston is mounted vertically, and the piston rod drives the beam as before. |
