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Publication numberUS1422427 A
Publication typeGrant
Publication dateJul 11, 1922
Filing dateApr 1, 1919
Priority dateApr 1, 1919
Also published asDE371851C
Publication numberUS 1422427 A, US 1422427A, US-A-1422427, US1422427 A, US1422427A
InventorsOctave Fauchon-Villeplee Andre
Original AssigneeOctave Fauchon-Villeplee Andre
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric apparatus for propelling projectiles
US 1422427 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


1,422,427, Patented July 11, 1922.






Patented July 11, 1922.


Juabuifmi a M L construction in which projectiles ofv any de-i sired shape are thrownout by the direct ac-.

ELECTRIC arrnnarns non rnornnnme rRoJEcTILfEs.

T0 allwhomitmayconcern: Be it known that Lennie LOUIS OCTAVE F UCI-ION-VILLEPLEE, citizen o-f'the Republic of France, residing at 2 Rue .Meissonier, Paris, in the Republic of France, havelinvented new and useful Improvements'in.

Electric Apparatus for Propelling Projectiles; of which the following is a SPGClflCEt tion. i i

I have described in my former United States Patent No. 1,370,200, an electric gun tion of a direct electric'current which flows I Bars 6-6, 77 form the energizing wind-1" The current supplied at the rear end to the through the whole or a part of the projectile and is subjected. to a field of electric" I forces.

In my co-pending application Ser. -No.

286,798 filed April 1, 1919, have more particularly described a gun construction using projectiles having a circular cross section andmy present applioationrelates to a gun construction based upon the same principle 1 but using winged pro ectiles. g A x 25 In the, annexed drawings: Fig. 1 1s a cross sectlon of an electric gun constructed in accordance with the present invention and of the shell used in said gun. Fig. 2 is the side View of the shell. Fig. 3 is a detail end view of the shell,

partly in section, on a larger scale. 1

Fig. 4 is a cross section of a modification.

As shown in Fig. 1,the gun is so constructed that it may be used to throw out a hollow:

cross-shaped projectile provided with wings.

The gun is composed of a magnetic circuit 1, 2, 3 with four poles, extending over the whole length of the gun. Rails 4.-4: and

5-5, which convey the current and extend. also over the whole length of the gun, are 1 used at the same time for guiding the shell.

in s for the magnetic circuit.

f t is assumed in the drawings that the shell is connected in series with the inductors.

two rails Jr- L in parallel flows through the shell, the two other rails 5-5 to the rear end, the bars 6 whichare connected there to the rails 5, the bars 7 which are connected at the front end to the bars 6 and back by said bars 7 to the source of electric supply.

The shell is cross-shaped and provided fwith wings, which allows of reducing the magnetic gap and obtaining a better contact with the rails. 1 The shell proper is composed Specification of Letters Patent. P t nt y 1. Application filed April 1, 1919. Serial No. 286,799.

ANDRE Louis oc'ravn rhucrion-vrnnnrnnn, on reels, FRANCE. I

of four sheet pieces 66, 5, c, cl which are '1 dished and assembled one tothe otherfor in stance by rivets 11 as shown in Fig. 2. I

The outer edges 9 of said pieces, which form the wings, are thinned and provided with slots 9 so that the wings thus formed 1 are slightly elasticancl makea goodcontact with the rails. The contacting surfaces are machlned, they might also be covered with copper plates for improving the contact.

. The above shells have the advantage that they are of an easy construction. Moreover 1 1 the reslstance of the air to the passage of said] shells is much less than to cylindrical shells', because for the same weight, the section of the, projectile is much smaller than fora cylindrical shell, asit ispossibleto ive a 1 much greater length and anelongate form which revents the eddies and vacuum which take p ace with ordinary cylindrical shells.

Their construction allows also of: giving them a very much'lengthe-ned shape and o-f arranging the same sothat they will keep perfectly their-direction in flight without any rotary movement. "A rotary movement could however be imparted to-them,+i f"de sired, accordi gly.

It is obvious that if the guns are provided with a greater number of poles the "shells by constructingthegunsand the shells will have a corresponding number of wings.

Fig. 4 shows, as a modification, a gun conwhich the shell is provided with six wings lnstead of four and is cylindrical instead of cross shaped. Moreover the magnetic circuit is omitted.

struction based on the same principle, in y The rails 3, 3' which act as current feed- 1 ing means and as guides for the projectile and the winding bar 3,, 3 are insulated from each other and mounted on a metallic frame 6, 7 suitably braced so as to have a suflicient rigidity in proportion to its. length, the

above bars being also insulated from that.


It will be seen from the above description that there are created, around each. bundle of bars 3, 3,, circular lines of force which pass, through the wings 5 and 5. Said lines of force being crossed perpendicularly by the'current flowing through the wings 5, 5 of the shell it results that the latter is propelled'forwardly. V

Naturally, the above described construc tion may be embodied in any kind of ap aratus for propelling projectiles such as r1 es,

i nation energizing: lbars adaptedtocrea te a machine guns, guns, aeriel torpedo -guns The projectilecan be 'inade of magnetic or nonma netic material. It may betinneol or not an providedwith any even number "Hai nngnow described my invention what I claim'as new and desireto securehy Lee tersPatent is a a a N1. Anweleetric gun comprising in"conibi field of electricforcesextending over the whole'lengthofthe gun, a plurality of rails:

which ere located atvdiametrically opposite points around the longitudinal "axis; of the gun, and means for supporting the milsand adapted to act as. current feeding means and toaguid'ei in a direction at right angles to said field of forces, a-proj ectile provided "with unequal: plurality of Wings, said rail being provided with grooves in which? said wings are adaptedto slide, the rails andbars arranged panellel: toeach a other *in groups rs. a u

= 2: Anelecti'ic' gun comprising in combinetion energizing barsadiiptedito create a field of electricv forces extending: over -the whole length of thewgun, ephirality ofrails adapt:

"gun, and a ma the whole lengt ofithe gunnndadapted to body of the points. around the longitudinal axis of the etic rame extending over support thefrails and bars. a

3. An electric guncomprisingin combine-a tion energizing bars ada ted to create a field. of electric forces exten ing over thewhole length ofitheguh; a. plurality of rails ad'apted to actas current feeding means and to guide in a direction at right angles to said field of forces, a projectile provided with an equal plurality: of wings, said rails .being provided 1 with grooves in ivhi ch said Wings are adapted to slideythe fmils and bars being arranged parallel to each other in grou ps which are located audiametricaI Iy opposite points around a the longitudinal zr-xis of the gun, and a frame extending over the hole length i of the gun and adapted to support the rails and bars, the 1 energizing bars he ing arrangediineach groupyon bothsi'des: of the 'dingrailsQ i electric forces, rails adaptedmto 4 An electric gun comprisingin;- tion a Winding; 'adapted to create v a field of Winged projectile in a direction at rightranh gles to' the lines of forces of said field andito supply an electric current to: said winged projectile, I the Wings and body a 1 of: the pro? jectile *being made a of conductive:matenial;

and in electrical contact with each other, the Winged projectile being 1 cross a shaped. i

In testimony whereofl hai e signed name to t is s cification; m

a ANDR LOUIS OCTAVE nucuon vurslafiafl

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3579001 *Oct 16, 1969May 18, 1971Merlin GerinLinear motor having radial armature plates
US4347463 *Apr 3, 1980Aug 31, 1982Westinghouse Electric Corp.Electromagnetic projectile launcher with self-augmenting rails
US4485720 *May 24, 1982Dec 4, 1984Westinghouse Electric Corp.Parallel rail electromagnetic launcher with multiple current path armature
US4577545 *Sep 13, 1984Mar 25, 1986Westinghouse Electric Corp.Parallel rail electromagnetic launcher with multiple current path armature
US4624173 *Jun 21, 1983Nov 25, 1986Ga Technologies Inc.Rail gun barrel assembly
US4641567 *May 31, 1983Feb 10, 1987Ga Technologies Inc.Barrel assembly for electromagnetic rail gun
US4817494 *Apr 6, 1987Apr 4, 1989The United States Of America As Represented By The United States Department Of EnergyMagnetic reconnection launcher
US5078042 *Jul 6, 1990Jan 7, 1992The United States Of America As Represented By The Secretary Of The Air ForceElectromagnetic rail gun
US5133242 *Mar 21, 1988Jul 28, 1992Rheinmetall GmbhElectromagnetic rail accelerator arrangement
US5285763 *Sep 3, 1992Feb 15, 1994Igenwert GmbhSymmetrical railgun
US5297468 *Apr 27, 1992Mar 29, 1994Dyuar IncorporatedRailgun with advanced rail and barrel design
US5483863 *Apr 26, 1993Jan 16, 1996Dyuar IncorporatedElectromagnetic launcher with advanced rail and barrel design
US8079352 *Jun 24, 2010Dec 20, 2011The United States Of America As Represented By The Secretary Of The NavyElectromagnetic decoy launcher
U.S. Classification124/3, 89/8, 310/13
International ClassificationH02K41/00, F41B6/00
Cooperative ClassificationH02K41/00, F41B6/00
European ClassificationF41B6/00, H02K41/00