The Sun. — 1846-01-12 (London, England)

REPORT ON THE EARL OF DUNDONALD'S ROTATORY ENGINE ERECTED IN HER MAJESTY'S DOCKYARD AT PORTSMOUTH. On the 22d of December, 1845, two years and nine months of constant performance .of the rotatory engine expires, during all which time it. has been working in the most effectual and satisfactory mariner, nu derangement of consequence having ever taken place, It is presumed that these two years and nine months of constant and laborious operation (requiring no more than slight attention by the workmen) have gone far to establish that quality which, until row, had not been sufficiently developed—namely, durability, and consequent continuity cf operation.  For Nine Months—Miry Anne Nye. For Six Months—James Thorn. Arthur Webb, Mary Barrett, Mary Anne Lloyd, Daniel Cruikshank, Mary Green, John Young, Pierce Driscall. James Parker, John Ashford, Richard Carter, William Long, Amelia Haynes, Thomas Walker, Alfred Hay, Rosina Bayley, George Evans, Robert Studley, Charles Holmes, Abraham Wheeler. John Mansell, Isaac Hoare, Benjamin Shepherd, William Stockwell, William Deacon, Mary Wilson.  - The principal repair the engine has required was taken in hand about nine months ago. This was so trifling, that six men could have accomplished it in one day, but having been much pressed with work at the time, one man only could be spared, which consequently protracted its completion for one week.  For *Four Months—William Hewson, John Greimne, Benjamin Freeman, John Jetty. For Three Months—Thomas Scalfield, William Cod, John Wheatley, James Beasley, Edward Heawood, Barbara Goulding, Mary Green, John Reilly, Thomas Hamilton. For Two Months—Edward Home.  Thus after four years and nine months constant working as a prime mover, two years and nine months of which have been so successfully performed, nothing more can be wanting even by the most sceptical to establish its merits as a powerful, economical, and durable engine, equal in point of efficiency to any reciprocating engine in her Majestv's service. Should additional evidence be sought to establish further claims as a rival in steam mechanism, it is to be found in the simple fact, that this first essay on the Earl of Dundonald's principle, although at. first altered and mutilated to bring it to perfection, is nevertheless at the present time perfectly free from those indications of weakness and declining energy which any other engine, under similar circumstances, might probably evince, as is proved by its exhibiting a vacuum at all times equal to 28 inches of mercury. Another fact which gives great confidence in the utility and applicability of this principle is its freedom from liability tc internal derangement, and consequently the service in which it is engaged is scarcely ever inconvenienced by stoppages. The engine has not been opened for examination since July last. . _ _  Several other prisoners were sentenced to undergo different shorter periods of imprisonment, varying from one month to seven days in Newgate. The following were acquitted :—George John Ford, Richard Riley, John Tubbs, David Lewis, Elizabeth James, Susanah James, Ellen Dasey, Richard Warwick, James Hogan, Anne Hogan, William Barry, Edward Walker, William Probett, John Brummell, John Strutt, George Dickenson, Thomas Emmerson, Mary Anne Sears, Mary Anne Chalk, John Tew, William Oldham, Thomas Roberts, Mary Roberts, Richard George Reef, Robert Downs, Thomas Bash, William Bond, Elizabeth Sanders, James Whitside, Caroline Barbar, Anne Jones, William Gibbs, Joseph Mitchley, Mary Day, Henry Joseph Killerby.  There was only one bill ignored by the Grand Jury, viz., against Isaac Clark.  Judgments Respited—Henry Spicer, Mary Smith. Remanded to the next Session—George Johnstone, for murder ; George Green, James Thomas. The C•Jurt at its rising adjourned to Monday, Feb. 2.  R. TAPLIN, Engineer and ➢lachinist. Her Majesty's Dockyard, Portsmouth, Dec. 31, 1845  RAIL • AY ENIERPRIsE.  JUDGES IN ROUTINE AT THE  The following reflections upon railway enterprise are interesting just now, and are written by an enlightened man of business:—