The Sun.
London, England, 1857-04-23 00:00:00

ELECTRO-MAGNETIC ENGINES.

Mr. T. Allan, whose improvemen's in electric
telegraphs have been recently mentioned, has lat-ly
occasioned considerable excitement in Paris by the
exhibition, at the desire of the Emperor Napoleon,
of his electro-magnetic engines, which are unques-
tionably the most successful examples in existence
of the application of electro-magnetism as a motive
power. The engines were taken to the Conserva-
toireldes Arts et Metiers on Tuesday, the 14th ins'.,
by order of General Morin, the president of the
commission appointed by the Emperor to examine
and report upon them. On Saturday, the 18th,
they were removed to the Tuileries fur the inspec-
tion of the Emperor. We are not in apo ;Aim; to
speak definitely of the result of these investigations,
but we have reason to anticipate that the principle
of the engines is about to be tested upon a large
scale ; and we are so well assured of its soundness
that we shall look with confidence for the full suc-
cess of the experiment. The main feature of Mr.
Allan's invention consists in the application of elec-
tric currents, so as to form several electro-magnets
in succession, by means of which several impul,es
shall be successively given in the same direction
to a rod capable of being moved longitudinally
to any extent which may be required. At the
commencement of a stroke the first of a set of
keepers upon the rod is placed sufficiently near
to the first set of magnets to enable them t
exert an available force upon it, and io move it
through the space that separates them. Therefore,
when a current of electricity is applied to this first
set of magnets, they accordingly draw down the
keeper to them, and move the rod longitudinally
through the space just mentioned. The next
keeper is, by this means, brought within the same
distance from its magnets, and the current of elec-
tricity is at the same moment cut off from the for-
mer andapplied to these, whiehtherewon draw tl,eir
keeper to them, and move the rod through an ad-
ditional space or distance equal to the first ; and
the other magnates and their keepers will respec-
tively act in a similar manner in succession, and
thus complete the stroke of the rod ; after which
the opposite side of the rod will be operated upon
similarly, the reciprocating motion thus ottainel
being converted into rotary motion by means of
the connecting-rod and crank in the ordinary man-
ner. It will be easily seen that the arrangement
of the parts may be readily adapted to all practical
purposeA. In fact, nothing could possibly he more
susceptible of convenient adapta.ion than these
engines, which will work with equal efficiency,
whether the series of magnets be either vertical,
horizontal, or inclined at any angle to suit the dif-
ferent circumstances of manufactures, locomotion
on land, or the propulsion of vessels. Mr. Allan
has also arranged a rotary engine upon analogous
principles, and we have seen it produce very excel-
lent results.—Mechanics' Magaiine.

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OFFICERS OF THE LEGION OF HONOUR.
•
Colonel E. Cooper. Hodze, 4th Dragoon Guards,:C.B.
Colonel Wllli.ru O'Grady Haly, 17th Regiment
Lieutetiam-C 1)nel James Pattoun Sparks, C.B.
C lonel Henry Frederick Lockyer, C. 8., ii., 97th
Regiment '
Colonel William S. Ramsey Norcott,
Colonel Noll Thomas Lake, C. 8., R A.
KNIGHTS.
(STAFF )
Lieutenant-Colonel T. W. H. Lord Burghersh, C. 8.,
Coldstream Guards

Lieutenant-Colonel the Hon. Percy Fielding, Cold
i-trea•n. Guard&
Major George Lord Bingham.

Captain the Hon. Henry W. Campbell
Major E. Neville, Scots Foalleer Guards
Major H. D'Oley Torrens, 23d Regime. t
Lieutenant•C lonel E. A. Whitmore, 30th Regiment
Lieutenant-Colonel the Hon. L Curzmi
Major the Hon. S. J. G. Caltborpe
Major Thomas Henry Clifton
Major James Gubhins
Major Charles Cireur de Morel.

Surgeon-Major Dr. A. Anderson, M.D.
Surgeon-Major Dr. John Rawsey Brush, M.D.
Assistant-Major John Wyatt, Coldstream
Surgeon-Major J. A. Bostock, M.D., Scots Fusileer
Guards.
Surgeon-Major R F. Valpy de Lisle, 4th Regiment
Surgeon-Major A. P. Lockwood, late 7th Regiment
Surgeon-Major Thomas Longmore' 19th Regiment
Surgeon-Major D. R. Mackinnon, 21st Regiment
Surgeon-Major B. G. Barlow' M.D., 28th Regiment
Surgeon-Major G. M. Muir, M.D., 33d Regiment
Surgeon• Major John Fraser, M.D.
Surgeon-Major J. B. St. Croix Crosse, 11th Hussars
Veterinary Surgeon J. G. Gloag, late 11th Hussars.
CAVALRY.
Lieutenant-Culonel R. Wardlaw. Ist Dragoons
Lieutenant•Colenel G. A. F. Sulivao, 21 Dragoons
Major G. J. Brown, 4th Light Dragoons
Lieutenant-Colonel 13. D. White. C. 8., 6th Dragoons
Lieutenant-Colonel J. Douglas, C. 8., 11th Hussars.
Major W. E. Evans, Baggage-train
Major E. A. Cooke, 11th Hussars
INFANTRY.
Major A. Tipping, Ist Regiment Guards
Major W. Gordon Cameron, Grenadier Guards
Lieetenant-Colonel J. Tialkett, Coldstream
' Lieutenant Colonel C. Baring, Coldstream
Major G. T. F. Shuckburgh, Scots Fusileer Guards
Colonel George Bell, C. 8., late Ist Regiment
Lieut.-Colonel the Hon. C. D. Plunkett, let Royals
Colonel R. W. Huey, let Royals
Colour-Sergeant Joseph Hunt, let Regiment
Colonel Sir Thomas St. Vincent Hope CoohraneTron-
bridge, C. 8., late 7th Regiment.
Colonel Arthur Bortoo, C. 8., 9th Regiment
Lieutenant Colonel C. Elmhurst, late 9th Regiment
Colonel Maurice Barlow, 14th Regiment
Colonel Philip M‘Pherson, 17th Regiment
Lieutenant-Colonel William Gordon, 17th Regiment
Colonel Clement (Alexander Edwards), C.B , 18th
Regiment
Lieutenant Colonel Henry Edward M'Gee, late 19th
Regiment
Major Godfry William Hugh Massy, late 19th Regi-
ment
Lieutenant-Colonel George Steffens, late 20th Regi-
ment

Lieutenant-Colonel Hugh Dennis Crofton, late 20th
Regiment
Sergeant Joseph Campbell, 20th Regiment
Major Paget-gayly, late 30th Regiment
Colonel George Staunton, 31st Regiment
Lieutenant George Foseland, 33d Regiment
Lieutenant-Colonel Richard Denis Kelly, 34th Regi-
ment

Lieutenant-Colonel Robert Newport Finley, 39th
Regiment
Lieutenant-Colonel the Hon. Robert Rollo, 42d
Regiment
Lieutenant-Colonel Andrew Browne, 44th Regiment
Lieutenant-Colonel Cohn Frederick Campbell, 46th
Regiment
Major Fi!zwilliam Frederick Hunter, 47th Regiment
Lieutenant-Colonel Benjamin Riky, 48th Regiment
Captain George Henry Lamb, 49th Regiment
Private Thonia,z Regan, 50th Regiment
Captain Henry Reynolds \Verge, 55th Regiment
Captain William George Margesson, 56th Regiment
Lieutenant-Colonel William Inglis, 57th Regiment
Lieutenant C)Ionel William Lennox Ingall, C. 8.,
621 Regiment
Major William Frederick Carter, 63d Regiment
Private John INl‘Gowan, 63d Regiment
Lieutenant-Colonel Herbert Blount, 68th Regiment
Lieutenant-Colonel Robert Joceylin Straton, C. 8.,
77th Regiment
Lieutenant-Colonel George Dixon, C. 8., 77th Regi•
meat