claim as my iiiventioi-i: 1 . Iii a iiiechailical fuse for artillery pro jectiles of the type in which the power member of the clockwork is constituted by a 80 barrel shaft arranged in the axis of the :fuse in stich a maniier as to describe several revoltitions in one direction for effectin 9, prior to fii-iiig, sliiiultaiieously the wiiiding and the setting or adjusting of the fuse, and in 86 the invers(,, direction and during the trajectory under the action of the power spring -,tiid for drivi-iig the i-otary member control[in 'y the release of the striker member, and also for transmittina the driving power to 90 a i-eotil@ttiii(y device of the clockwork with a cle,,tcibeat enscapement and a spiral balance, in combination a fraine, for bousing the difforeiit iiiovable'members of the clockwork said fiame being composed of at least two; 95 p,,trts, one of them being a fixed one and coiitainin g tllg, power spriiig, said fixed part beiiiinteci,al with the fuse body, and ai mov@bl e o@ne adapted to become, pri'or to firiiig, displaced angtilai@ly with regard to 100 the fixed part, f or effecting simultaneously tli(,@ wiliclino- of the power spring and the I@tjustin g of' tiie til-ne of ignition of the projoetile clia,rtye, means bein- pro-@ided, which, in function of the inerti'a, ai@e adapted to 106 rendei-, dui-ino, the con-iplete ti@ajectory, this i-iiova,ble i)-,ii-t 6f the frame iiitegral with the sa.id fixeci part. 2. A ftise as per claiiii 1, in which an oscillatiusafety n-ieliibei, is ai-i,ano-ed in such a 110 iiiaiinei-, that the power of iiiei-t.ia generated by the linear acceleration of the pi-ojectile is u,ed foir i@evejitin(y in spite of the centrifugal force@ its oscillatioii during the passing of tll@ I)rojectile througli the bore of the 115 -tiii, the centei- of gravitition of said i-nember being outside of the axis of rotation of the projectile in order to liave the ineniber to oscillate as soon as the linear acceleratioi-i has reached its eiid, that is after the 120 projectil e has left the bore of the gun, the said oscillatioi-i being used for causing the release of . the reguliting balance of the -V L u,,@ e. 3. A fuse as per claim I in which iiieans 125 ai@e provided for pi,eventing any axial disI)Iacern eiit of oiie' part of the clockwork fraiiie with regard to the other part and for holding the two f raiiie pirts a cei-taill interval apart froill one another for lodgilig one 130

of fhe rotar members -of the clockwork in y said iiiterval. 4. A fuse as per claim 1, @in which means are provided for maintaining@ the movable a part of the frame coupledl,,with the barrel shaft of the@ fuse until the monleilt of firinc,,. 5. A@ fuse as pei- claim 1 in wliieh the movable, part of the fian-ie liouses the gear train and. the i-e-ulating device of the clock Nyork iO and is an-L-ilai-ly di,@placed prior to firing by means of ,i l@ey disposed in the axis o the fuse in the I)oint of the latter... .6. A fuse @s per claiin 1, in ANhich the barrel sl-iaft constituting the power member l@5 carries on its top porti6n a crown wheel witli inner teetli in constant mesh wi'h a pinion of the gear-train@ which, as well as all the otlier wheels of- said geat- train, is held iinmobilized@until firino- the ectile, but P"O' 20 which patticipates @in the rotation of the movable part of the fr,,tme in silch a maliner. as to serve, @rior tlo fii-iiig, for catising the barrel shaft fo partal,,e in -aid r t,,ttion. $0 @l-. A fuse as per claiin 1, in ivhich. mean,@ 25 are provided foi, preventing the balance ot the regulating device fi@olii rotatiiig respeetively until the momeiit of the@ (lepartu@e of the projectile and until the accelerttion has come to an end, in, order, to immobilize. dur30 ing all this ti-Me the@wheelsof the @,ear train b@ means of the escapement @vheel @adjusted in its inoperative- position in the course of manufactl!re and in order to allow, prior to firing, the crown with inner teeth and 35 carr.ied'by the barrel sl-iaft to be rotated too when the inovable fr,ame part is, rotated,by the pinion in constant mesh :With the same. S. A fuse as per claim 1, in which, steel points are p@ovided, mounted as to be axial40 ly movable in'the body of the :fuse above t@he . mo-vable part of the f rame, in such. a manner as.to allo-w them to peneti@-,tt-e b@ the effect of inertia at the mbment of firing in the tc)p surface of said movable part so as 45 to render it integral 'with. the body of the fuse. A fuse as per cl@ini 1 in -which the fixed part of the frame liouses the barrel and the 'ke devic(@ 1 controll'ing the release of -the str' r 50 m6mber and is fi-xed t6 the bottom of a cylindrical cylinder composed of at least two parts and within the 'top part of -@vhich t-he inovable part of the frame may rotate frictionally. 55 I 10. A fuse as per claim 1, in, which steel. points are provided mounted s6 as to be -,txially movable in the bo-dy of the fuse -@ibove the movable pat-t of t.he frame in such @t manner as to allonv them to penetrate by @60 tlle effect of inertia at t-lie moihent of firin(Y tn f said mo in t,h6 top surface o vable part so as to rei,.ldei- it integral with the body of the fuse, the said stee'[ points bein -r carried by 9 a plunger mounted slidingly in an axial bore of tlie:body of the fuse above the-@liiov@ble:65. part of the fraille, dt least one centrifligall naelill)ei- beina provicled - %AIiieh is aclapted.to theretipon T)Iace itself behiiid said plunger for the puipose of iniiilobilizin& it ili@its operative. positi@oii duriiaotl-i(@. coiiiplete:70 trajector of the projectile. y 11@@ A fuse as per clai-M 1 iii @vhich an, oscillatino,- s,,tfety ineiiiber is arranged in stich.a n-failner@tliat the po-@vei@ of inlerti@t geilerated@ by @the linear acceleiation of the,:projectile 75 is tised foi- preveliting,, iii spite. 6f the_-ceiitFifLIo-al foi,ce its oscillitioii durill(,y tl-ie pas--ino- oi@ the pi@ojectile thi,ougli the,bore of the' ion of said meiiixis of rotation of 80 have @ the member inear acc6lei:ation has reach d it 6nd. that ' Lifter the proe @ s is jectil.e lias left@the boi,e of. the ?,un, the said os@illation beii-i@l; usecl for @au@ino the re- 85 lease of the i-egul-,itiii(y bal@ince of the fu8e, the lating sa?ety saicl oscil me-n4bei, beino, constituted by. a@ lever iihic,li may rotat6 in a plane p,@irallel to: the axis of rotation of@ tho projectile, saicl lever. beiiig arrested (luring 90 the entir6 'duratioii of tlie.linear@ accolerati6iiin suel-i ,t. positioii as to prevent aii3, displacen-ient of a centrifugal: bolt protruding bet-"?een the striker and the pi,imer; 12. A- fuse as pe@ claim 1 in - whiell, a@n 051 oscillatiia-- safety rneinber is arrange(-.I ii-I such a, mwnner that the powei- of inertia. gen7 erated b@ the linear@@ac'celeration : of the proiectile is' used for preventiiig, in s ite@ of the p @entrifugal force, its oscillation during the 100 passin- of the projectile t,hi-ouh the@ b6re gun. the center of g member being outside of tl-ie, axis of i-ota-, tion of the, proj6etile in @ orde to' have the member to oscillate-,as soon as the@ linear ac- 105 celeration has re,,ichecl @ its eiid, that. is'aft6r the pi-cilectile has left the bore of the (run the said oscillation bein-- used for caiising the release of tb regulatiiig balai-ice@: of @ the, e fuse, the said oscilla:tinly @afety meii-iber be- 110 ing constit ted by a lever Nvl-ii@h niay,rotate u in a plane parall@l to the axis of rotation of the proje( - tile, said lever being ari,ested duriiig. the eiitire duration of the linear acceler.ation in such a, @osition a to prevent @iny 115 dis lacement of@ a,ceiitrifug:il bolt protrud@ p ing between the str'iker and tl-ie I)riiiiei@, and in -which tl-ie. said :centrifugal bolt is constitut'ed b@y a pin-the 6,ravit y cehter of,whicli is eccentric with re-Wrd to the axis of@ rot&- 120 tioii of the projectile and,@which is suscep-. tible t,o be displaced i,n a radial- slolt, -said pin havin& on the.one part a lonoitudinal notch, into which.may p6netrate the oi@t. p ikei-, and on the other pai't, a cyliii- 125 of the str@ drical cavity with a widened border into -which the nt of the striker is wedged poi in the case Of some ace,,idental function of of t;he- cri,avita@ioli of said

1,665,899 7 the latter in the bore of t,be gun, so that the said bolt will definitely becoiiie immobilized in its active position. 13. A fuse as per claiin 1, iii which n-ieans 5 are ptovided for preveiitiiig aiiy axial displacen-ient of one part of tlle clockivor',,frame with regard to the otlier pal,t aiid for boldinc, the t,-,N-o fran-ie parts a certaiii i,,izterval apart from oi-ic ahother for lodaiii10 one of the rotai-v mei-nbers of the clockwork in said interval. the said means beino- coi-istituted by separatina ineitibers fixed on the one hand to one of the two-part frtme aii(I connected on the other hand to tl-ie otlier 1 15 part of said f rame, in stich a inanner as Lo hold the separated part at, a certain interval from the other and to prevent any relative axi,,il motion betweeii the two parts whereas it is possible for the n-iovable part to become, 20 prior to firing angularlv displaced with regard to the said fixed friiiie pai-t. 114. k fuse as per claiiii 1, in Nvhich an oscillatinc, safety iiiember is arran(red in Z-1 Z:l suc!h a nianner that the poiver of inertia. (yen"3 erated by the linear acceleration of the projectile is used, in spite of the centrifucral force, its oscillation cl-Lirln,,,,, tl-ic passing n of the projectile through tl-ic bore of the aun, the center of - ravitation of said member be30 ing outside of the axis of rot@ttion of the projectile, in order to have the member to oscillate as soon as the linear acceleration has reached its end, that is after the projectile h,(s left the bore of tlle --tin, the siid oscilla35 tion being used -for calis@@cr the release of the striker member from the action of said oscillating safety member. 15. A fuse as per clairfi I in which an oscillating safety me@mber is arranged in such a 40 manner that the po-wer of inertia (renerated by the linear acceleration of the projectile is tisect f-i- pi-eN,eiiting, iiL spite of the colltrif@igal force, its ose'llatioii cltir'ii(, Llic passino, of the projectile through the bore of the tn 45 gun, the center of gravitatioii of said member beino, outside of the axis of rotation of the projectile in order to have the m,embe@r to oscillate as soon as the linear acceleration has reached its end, that is after the projec50 tile has left the bore of the, gun, the said osc illation being used for releasing the stri ker meiiiber from the actioii of the said saf ety member, the s,,tid oscillating safety ine iiiber beiiig constituted by a lever which iiia y rottite in a plane pai-allel to the axis of 55 iotat@ion of the projectile, said lever being ariested dui-iii(- the entire duration of the Iii @,ear accelei@atioii iii sucli a positioii as to t)ieveiit ally clisplaceiiielit of a centrifugal bol t protrudii-icr between the striker and the 60 pri nier. 16. A fuse as per claim 1, in wliieh an os elliatln,-, safety mei-nber is arranged in slie li a iiianner that the power of inei@tia genetatecl by the linear acceleration of the pro- 05 jec tile is used for preventing, in spite of the ce ntrifu(ral force its oscillation durino, the pis sing of the projectile through the bore of the gun, the center of crra-@itation of said in iii @,inber being outside of the axis of rotation 70 of the pi,ojectile in order to h,,ive the, membe r to oscillate as soon as the linear acceleratio n lias reacl@ed its end, that is after the pi: ojectile lias left the boi-e of the gun, the sai(,[ oscillatioli beiii- used for releasing the 7r, sti-il@ei- iiielilber froli:i the action of the said safet y itieiiiber, the said oscillating safety iiieiii ber being eoiistituted by a lever which iiiay rotate iii a plane parallel to the axis of i.otat ion of the projectile, said lever being 80 airested diii@ing the entire duration of the Iiiiea r acceleration in such t position as to prev eiit any displacenient of a centrifugal bolt prott,u(Tincy between the striker and the priiii er, and iii which the said centrifugal s5 bolt is constituted by a pin tl-ie gravity cen'@er of which is eccenti-ic ivitli re-ard to the axis of rotation of the projectile t, and which is susceptible to be displaced in a radial slot, sai(I pin liaiiiig on the one part a longitudi- go nal iioteli, , into wliieli may penetrate the poiiit of tlle striker, ancl on the other part, a cylin di,ical cavity in@itli a widened border into v;llicli the I)Oillt of the strikei- is wed ed in 9 the ease of some accidental ftiliction of the 95 1,,ittc i- in the bore of the gun, so that the said bolt will definitely becoiiie iii.iiii<)bilized in its activ e position. Iii testiinony whereof I affix my signature. ANDRI,@ VARAUD.

Patented Apr. 10, 1928. 11665@899 UNITE@D STATES PAT7ENT A.N3)Rt VARAUD, OF GENEVA, SWITZERLAND. MECI-IANICAL FUSE FOR ARTILLERY PROJECTILES. Application filed January 7,1927, Serial No. 159,530, and in Switzerland.Tanuary 16,,1926. Th@, inveiiti(il, coileeiln" irecliaiiical fuses for'ai@tillei@y . pioject,iles Of tli(, type iii ivliieh the i-elease of a stril@:eidevice is coiitrolled bv a rotii-v iiieiiiber ivliose aiigular position 6 e'an be set oi- a(ljti-,,ted pi-ior t6 fii-iiig and ii@Iiieli -i-s driveii (Iiii'ln(,, the fliglit 6f the pi-oji?c,tile by i spriiic, opei-ated clockwork in -i tir(@ction 01)1)osite to its settiiilol,. The inve@tion iiiore pii!tieularly refers to u njo 6f tlie l@iiid in ivliieh the drivin,, t,oi-@o@f the elockwoi-k is constitiited by a b@ii@i.el ,,Iiift accoiilmodated in the ,ixis of the flise in slieli i iii,,inner that i'u inay describe se,,,@i-al ievoliitioiis iii oiie direction, foi, ef15 fectin befoi-@ firing simtiltaneously the 9 windiii@- and the -ettiii-- of the fuse, and in n (Ii-irin(y the trajectory, the inverse clirection, iiild(@il the actiod of the po",ei, sprincr, for zn di-iviiia the i-otai@3' il-ieiiilj6r controllinop the 20 i!eleise of t@e sti-il@er niember and for transniit tiii(@ tlie diivinc, P6*er to ,t regtilatind@,x,ice 6f the clocl@-%vork Avith ,i dead-be,,it e.sc.t,pei-fient aiid sl)iral balance. The f lise, accoi-clincr to this invention is es2,5 Sen-ti@illv eiaractetized by the fact that the fr,i,iie,. lioii,;iii(,, the different illov,@ible memI)ells of tl-te clocli:-vvoi.-Ii: is compo,,;ed of at lea@,,t tni,o I)ai-ts, a fixed one C()htaiiiing tlte p(NveT' sl)-i-ini,- wliieh is rendered inteural @io Nvltl-l tli(@ bodv of the ftise and a mov,@ible oiie, ivlii(-Ii prior to fii,ino- may be angulaiily disi)la(-(@@l -",itli reg,-ti,d to the other patt in order t6 efre(@t ,@imtiltaneously tl-ie winding of the -I-)oi-k,ei- c;pi-in&, the setting or adjustino, 3,'i of tj@ie fime of ianition of the cliar-e of the projectil.e. and further by the fact that ii-iean,.@ o ei@.itinu I)v inertia, ,trE@ proi,idedfor p i-e I ndei,iii!X t@he ii-ioi,,@ible part of the frame int,et),r,tl w'tli the fixed pai@t during the com40 plote ti-ajectory of the projectile. The, driwi-n- shows, by way of ex,-iiiiple, oiie form in wliieh this new meftise can be executed and fitted re,-.I)eetivelv to a (lotible-,,,ctiyi(@xi.Dlo@;ive sbell 4 r) (Ficr. 1) ari(I to a sinalo-acti@cr explosive .-,lie] . 1. i-fioj,e, especi,,il,lv desil,@ned for firincy aL-,%inst ,Iei@ol-)I,,ines (Fig. 2). 1-@igure I J.'@ in @xial sectiol-i representing tliic; f6i-ii-i in the I)osition jtist after machiiil,ti in(,. tbfit is I)efore firiii(y. Fi(YLII,e 2 is an axill section, turned rouncl bv, 180-de,(@@.- ees in @,-,,ttio to Figtii@e -t, showin 9 sai@l f oi-m 1,1(lapted to the single-,,toting explosive sliell ' The position iiidicated is that of fuse lvlien detonation would occur. l@l,-,-ure 3 is a cross-sectioii on the line A-A of Fi,ure 1, ori uppei- plate of clockwoi-k sliowidg liow the key is to drive a movable I)art of said frainc,. In this figure a dotted line also indicates the fuse balance 60 ecoi niiiodated with'n the upper plate of s id a 1 a iiiovab le part of fi-ame. Figui -c 4 is a cross-section on the line B-B of Figtire 1, Liiider the upper I)Iate of clock-ivork 'L'i-aiyie, sliowina, in plan view 65 the regtilatlii(.Y device. Fi igure 5 is a cross-section on the line C-C of Fi(,tire 1, uiider a ii-iiddle plate of cloclcwo@k fraiiie, sli6wino, liow the movable eD p t o sa d fi-ai-iie carries alon@), while re- To vo vin cr, the f Lise, di-iving sli aft. t, Fio-iii-e 6 is a cross-secti n on th line 0 e D-D of Figure 1, under the clocl@.-work barrel, 6;liowin(, hoiv the fuse driving shaft carries aloiio- an @iuxiliary sliaft foi- i-e(yulatin- 75 the firin(y tinie of the projectile. Fig ure 7 is. a cross-sectioii on the line E-E of Fi,-o;ure 1, under a steel plate set betwe en the barrel and the bottom of clockwork frame, slioaving a plan view of the con- 8o trollindevice for i-elea:sing the striker. Fi( yure 8 is a section on the axie, of the fuse of alibtlier ivorkin- forin of 'the device for starting the b,,ilance. l@' igiire 9 is a plan view showing the POSI- 85 tion of the balaiiee prior to firincr. t!l F i,,,, ti r ic 10 is a similar plan view showing the @ (t@v ce in its operativ@ position and the positio n which the balance will take at the cleparture of the projectile and whicli it con- go sei@ves duiing the coml@lete duration of the linear acceleration. Referring to the attached-drawing, it will be seen (Fiuures I ,ind 2), th,,it th e cylindrical t)ody 6f the fuse is composed of two or, p@rts 1 and 2, screwed on each 6ther. The periphery of lower part 2 shows a stead ypin 3, the head ivhereof sliglitly protrudes beyond the shell, for angularly fixin- the litter on to ,t tirning tppai@itus. 100 Axially niolinted in cap I of'the fuse, so as to be freely r6tatable, is a key 4, whicli a slanting screw 5, co-operating with the conical bottoiii of a recess 6 iii the c@ylindrical bod prevents from axial displacement. 105 y Said @key is provided, at the end opposite

1,665 899 to its driving tslot, with a transversal head irel 33, fitted with two lugs 34 and fixeci Witli7 (Fio-ure 3), the function where6f is hereinafter described. Whether shell be sincrle or double actin-, the detonatilig device i;housed -,vithin a eyrm -b6d@ lindric',Il cavity fo ed in the axis 6f 2 of the fuse In the first case (Figure 1), said detonating device includes a Primer plunger 105 stib@o jected to the action of t sprina 11 tending t, to keep the plunger doivnNvArd in the bottona of its locatiod, said plunger bein(y provided, bn its per'phery with iir I -gaps f2; a @afety stay-bolt 13, constittit6d by a sniall cylindri15 6al piston, operating in a radial aroove 14 tD , and no@Tally kept en,ao-ed -witl-i a eross bore 15 of primeiplunger 10 1.)y iiieans of a lever 16 subjected to the action of a. s]pring 17 and held in its operatiie position, till firing, ,2o by a ' n IS a primer 19, screaved into the PI axis Of- plunger 10 aiid a strik'er 20,. slidiiigly mounter@l ivltllin a Lytiide locitecl ii-i the axis of the fuse. Sa'14 @@riker is subjected to the iction of a peretission spi-iii(,y 21 resting, on, the one side, iinclei- the b6ttoiii of the clock-work frame, @aiid on the oth@r si cle, against a flange provided on stril-er bead. The said stri@e@ head is ended by the percussion point 22 norm.Illy-engaged wit!-iin a transver@,,e countersink in the sttiy bolt 13. Clolse to its' up@er eDd, tl-ii.s stril@ei@ @ is@ also provid6d with a 1,,Lteral notch 23 the f@inetion @vhereof i.@ hereinafter described. Iii the second case (Fio,,uie 2) 'thle primer. pluiiger 10, instead of teiiig eltstically ],:ept -within the bottom of its location by a spring is@ poi-i-naneiitly fa@tened tbereiii by a st@iybolt ring 24. In the axis of f uise cap 1, above the striker, 4o there is' a bore ha-@ino- a cylindrical poi-tioii 25 wherein is nioiint(@d a casing 26 confaining the clocl@-work nioveiiient. The bore i,@, ovided at its lower.611@l ivith t,vo ii-ioi-tise.,@ Pr 27, di@metrically 6pposite to e@ch otli,er, 45 Within which are j-h,,ide to fit two pi,ojections or tenons 28 of the casino, 26, so a@ to rendet-, this (@asing jointly conn@cted with the fusc body in tn6 angular@ direction. This casing, is, in t-wo seini-eylindricql ptrts i-igidly consere s 29 i,o nected by means of w diaiiietrically opposite to one aiiother, sere-wed into P,;eces constituting the barrel and the bottom ofthe clo6kwork frame respectively, which pieces are hereafter described. 30 'and 31 indicate es e ain rs whereof arE ,);5 two plat th di eto @lio@htly greater than the inner diameter of ca@inu 26 sb as to freely rotate Nvitbin t-vi-6 corre@poncling circular countersinks of said ca ing. The upper, plate 90 is liollow so as to 6o provide accommod,,ttion for the fiise balance. These iw'o plat6@ 30, 31 are jointly connE,Tted by three pillars 32, so as to foriii together a solid block capable of re-@olving witbin casing 26. Thelpowei- spi@iiig of tl-ie 05 clock-work is lo6,@tted in A drun-isbaped barin the casing at a certain distance below the lower I)Iate, 3.1; 35 shows a stleel sti:ffeiiing disl@: Avith t@vo similar Iii@-s (Figui-e 6) resting oii bottoni disk 36, ,tlso fitted with two 7i@ Itio-s 34 ivliieh constitutes th6 bottoiil of the :ctsin(y (FigLii'e 7). The lugs '04 Of druin.33@ aiid the lugs on disl,-s 35 aiid 36 are diametricall@ opposite t6 oiie anotber and supei-posed -o as, to j(?lntly eiioage, as a single 7.r) - piece, ;Avitliiii tivo@6or@espo-iidiiig niortises, diaineti,ically op osite to each other aiid located p t of casing so as t inside the loiv,er pai@ o fa the @pr(,jections or teiioiis 28. The scre",s 29 go throtiolh o eiiings drilled into saidpro-@ 80 zn p jectiolis oi, tenons 28 ti-id extend int6 the peril)l)ei@y of the bottolii of the driiin 33 and the bottoiii-disk 36, respectively. The barrel 33 aiid the t-vvo disks 35 tnd 36 qre ilso ri,-iclly fasteiied togetli6r by iiieans. of t@NO 85 stL-oii(, iD @37 (Fio-ures 6 ai;d 7). Thus it P S , @n be seen that tlie- fraine for the clockiiorlc.'iiioveiiielit is ieiitirely housed witbill ca,,iii.6,- 2@) ancl@ that it is c6lnposed of two pai@t8-@the olie nioval)le Nvithin aid 6asirig@ Di) an-d coiistittitecl by the two plates 30, 31 tl-ie otlier fixed, joii-itly coniie6te(f witl-i the'cas_@ iny ,,iid forrded by the three superposed clisl@s, 33 25 and', 36. cloelt The 1).ower sl)rillo_, 38 of -work move- 0 iiieiit is lodged within a cylindri,c,,tl ca.@ity provided in drtilii:33.,iiid closed witli tt@-barrel covei- 39., The outer@ end of :said spring is fastenecl by its usuall bridlo to clrtli-h 33 so that tl)e bridle will I)e suiik' ll]Lto a coiresponding 1 11011.0w,@in tl),c iiitei-i-ial wall @of bar].-el Nvllile tl@e spi-ing l@ loose. @ The ini'ler e I nd of the Spr,ng i-s 5,ecur . ed to@ t collet 40, liaotilitecl on t squai-@e poi,tion of ti central arbor 41 accoi-iij@-iodated i@i-i ttie axis of the casino-. This ,trboll 1(.1 serves iii tli.e fli-st pl@ce foi- wiiiding up the 38 by iiieaii,-, of @t ii,indiiio- mechaiiisiii hei-ea7ftei, d'escribecl aiid in t'lie secoii(l place, 5 for traiisii-iittiiig the iiiotive powcl,r, on the oiie side, by iiieaiis oi@ a pinion 42 @to,tlie organs 110 of the clock--@vork C.Ontrollii-ig the actioii of the ftise striker and, o,ii the otber side, to the clocIT.NA,oi@k i@eaulatina device, the different aears whereo'l are, inserted betweeii plates 30 and 31. Th'e arbor 41 pivots by 115 its lower ond whi,le restirig oii the centet o 'f' the steel disk 36 @-v@hei-ets, by its upper end iiliieh carries a ol clgeoi-i 43 fixed tbereon . ,u Avith a screw 44, it pivots iii the center of a 120 support 45 Avhich cloiistit-Lites a,beaiing for I-,lie F@an-ie.. This Su pport 45 is fixed under the lo@Alei@ pl-ate 31. Arbor 41 is provided, at the reir elid, thereof, witli the piilion 42 meshing t,ith an intermeditte wh6el 46 fastened to a siyi I all sliaft 47 ivoting, on the 123 p one side, I'n the bottoll'i of clrun-i 33 and on t'lie otl-iei, side, iii the bottoin clisk 36. This shaft 47, @vhich serves to transn-lit. the illotive pow(,r to the coi-itrollino, device releasiiithe zn --tt t 130 sti@ikei@ dui,in,,, the flig aiid to - adjus@'@th

firi-,,Rg itime of -the@;charue in ihe projecfile prior to @departute, tilso @earries a pinion 48, In @coiastant mesh -with the@ @inner teeih of ii crown 49, freely -rot-,tti-ng within a circular @t> cottiitersii-ik :50, @rovicj,,ed iii the bot@tom disk @36. Iii opeiiings of the steel disk 35 are @164 cated @three balls 51 (Figure 6) whereo-n the:upper face of crow-n 49 @can roll. In the ltj'ed-o,e rof the:cro-wn @projecti-no, parallel to the ax-is of the fuse is provided a notch ;52, wh,erein@ the nose of a - stoppingy- lever 53 of thp- @striker is made to engage -when said itriker is released (Figure 2@). This lever 15 53 @may,pivot aroiind a sholildered screw @54, screwed'@thereon through the bottom-disli: 36, so as to move olit of -notch 23 of the striker justwhen@notch52faces@thelevernose. The operating -surfaces of lever 53 ai-id of notch 20 23, which,co-operate in keepino, the strike-r bolted till detonation ocetirs. ai-e slightly slanting, so as to mtke !ultlo@king of bolt easier. The @lever 53 carries a perpendicular pin 55, agairist the free extremity ivhereof 2r> ope-rates a spring 56, located -witliin a countersiiik@in bottom of drum@'o'o, for the piirpose:df counteracti-n- tlle action iof the pern cussion sprin- 21. : Said spring 56 no@mally .1 ,D-ailist the intends- to li:ee ei7er @53 resti-noa,_, 'it, rtia pii-i 57, ntearal -with a clutch sdring e zn 58 which automatically moves away under the actio-n of inertia when the projectile is fired And said sprin- 56 -also causes the no e of lever 53 to penetrate witbin notch 52 when ,Pin 57:bas moved o'tf ind when said notch 59@ happens to face the lever nose. The :pin 57, fitted -%vith spriiig 58, operates i-n a cylinder 59, fixed uii4cler the bottom dislc 36, and eiiters a cylindrical cotintersink@ @40 fornied @in body 2 of the fuse. The crowh 49 presents a, lug 60 radially pr Qjectin,- towards the center thereof. Said lu is normally kept en-aoed (Fiatire 1), 9 Z, n - , witliiii a correspondino- notch -61 of the inzn 45 ertia pin 57 so as to p@event, on the one hand, crown 49 from mo-k,ina clock ise alid, on w the other hand,:to preient the pin 57 from premattii-ely movin- o-ff before timina of tD LI fuse has been performed; for example if the 5o shell -bappens to clrop down wllile bei na h'andled. As loii- as pin 57 is in its operatiae posiT.is durin- the whol@ tiine of transtion (tha t@ port ih,,tndlin(y and loading of the shell), 55 said @lu- 60, while remainin- in 1-iotch 61 of LI zn pin ;57, prevents th6 er6wn 49 from rotating @in a. clockwise direction and, consequently impedes en,ery accidedtal release of strilier 20. The inertia pin 57 however, does C)o not prevent the crown 49 from rotatin(r in a counterclockwise direction by 335 de(yrees or so wben it is desired to adjust tb@ @firinv tim,e of the charge in projectile, namely to time the 'fitse. Soiid @timing is per-formed @65 while@ ower sprino, 38 is being woiitid up p with ihe aid @of the key 4 hy tui@ning the, @amle clockwise with a timing apparatus at the angle required to secure the,firingrange desired By tiirning the:l@ey 4, the lower end whereoi :is guided @by tn axial cylindrical j" tenon 62, fixed in the cover of the upper plate 30, the movable rame 30, 31 is.driven with the aid of a @transverse head-stud @7 and a.mortised platel63, fastenedlon the,cover,of the holloiv plate 30, @ so as @to co-operate witli 7-1) stud 7 of @the ke3,. The movable frame 30, 31 then de cribes, in a clockwise direction, the sam-, an-le as lcey 4 Avhilefrictionilly revolvin- ivithin:the two insideiarooies located in the upper p,,trt of the @easiii- 26. 8',) In the:beai-i-.i(,- 45 fixed under the plate 31, is molinted a pinioli 64,,which constitutes the first rotatin,- ihember of the gear-train in the clock-work movement. Said pinion-as it is the edse for the wliole -ear-train-is pi-e- r., vented from revolvin- until firincr time (a@ n el liereii-lafter described) aDd is iii con.-,tant mc-sli witli the iiiiier teeth 65 of a disk 66 i-n the 2(;, 1-.)etween t-lie I(iver :Plate 31 and tl-te cover 39 of the druiii aiid oii t sqiiare I-) @,(Iiicezecl, ortion of the di-ivin(- sl,.aft 41 be'LAveen the (viidgeon 43 ,iii(I L@ tn the collet 40. @Becaiise of @t]-ils constriietioll, tli driviiig sliift 41 i-emiii-is eoiipled w'tli 0 1 tli@c ii-iovable fi-aiiie 30 31 @Ls lonu ,is the 05 I zn pinion 64 is prea,ented from rotatin-. Tlius, -when the moiable frame 30, 31 is d-riven by means of,key 4, the central shaft 41 is made to revolve in a clockwise directio-n, @wlli.eli t7, has, on the one hancl, the effect of windiii(r ion iip the power spi.-inu 3@8 and. on the otl-ier hand, simultaneously of turnino, colinterclockwise the croi@,ii 49 coiitrolling the dei@ice releasino, the stril@:er through oears 42, 46, 48. The wnii-iding position of -power spriiig aiid i (1@') of timing thus imparted to the fiise, throuoli difference between ]the movable @part aild the fixed part of the clock-",ork frame, is maintained between the momelit of timirig the projectiles ind the n-ioment. of firin(, the lat- ito ter, through friction of the plates 30, 31 withiii grooves of casino, 26. Said fi-ictioii i.,@ secured, on motiiitin- up the frame iin the r@ . casin- I so as to remain coiistaiit I dtie to a space 67, existin(r bet-ween the fixed part 33, i.@ 35, 36 of the frame, and @tbe casing 26-except at bottom of bottom 36--said space bein- sufficient for allo-wing both halves of zn casing to be properly tightened on the movable part 80, 31 :of frame, -1@NTith the aid of i f) screws 29. On firing, the movable frame 30, 31, ii-itegra.I with the l@ey 4 ., is immobilized iii the casing 26 as sooii as iiierti@t becins to prove effectual (tlirotigh a device hereinafter de12 r, sci-ibed@) whereas, simultaneously, the @gelir traiii of the clock-ivoi@k inovement and, consequentl-y, also the pinion 64 ' are rele.Lsed (thi@oiioh a device hereinafter described). Un'(Ier the action of power spring 38, the 13u

shaft 41 starts revolviilg countdr-clock*ise end,6f a smgll shaft 77 piv6ting, on the on(i drividg, on th6 onp-- liand, the whole gear- side Nvitliin t-he upper plate,30 and, on the train thro@,uh- crown 65 and, on the otlier. otlier side;, vvithin bearing 45. 78 indicates hand, the ei-oivn 49 tliro@io-h gears .42 46 "L eire-Lilar countersink.provided in the pl,,Lte and 48 cltii,ino- the coi-nple t6@tr,,tjecto@.y;of 31.securiiig fi-ee pa sage f6r pinion 64 -when to Ijectiie,-tlie -il n ie L-o 30, 31, previo sly- the apliai@attis is beina inou ted Said shhft: P' t' -n-lovable,@ as i),ell@ is 1,,ey 4, reiiiainiiig, ,ill 7,7 cari-iesj above the lower pllte 31, a,@wlieel@ th'It tiiiia iiate al@ itli,@fuse bod.), 1, 2. 79 opei-atiilb, t piiiion 80 made int gi@ w egral Witli 'Hence, the croivn 49 res-Li mes the ii-liti'll. a@@'bevel Nvlleel;.:@89- operating a; small bp-vel positioi-i -it ocetipied prior to tiiniiig, tl-i@t, is it.s:positioii jtist-- ,tfter i-iiacliiiiino;, btit, at that. very I ri-ioll-lelit, the I)ill 57 liaviiiog- withdi-awli throtio'li iiiei@tia oii projectile being fi ed, is b r no lorliger,iii the patl-i of lug 60, and besides, l,'@ the p6wer (1crived froill :tlie, polver spi-ili@, Ift S,L-ill Cll,ivill6. t-he sli, 41 alid the cro-kvii 49, tli'e latter l@eeps rotatilig iii a elockivise (,Iirecti6ii iintil jioteli 52 tliereof exa,@tly T,,tces the nose of bol@ii-iu lev(,,i, 53. Uiidei- t]-ie .iction of s@i-ing 5@ Itnd of the ceiitrifti(yil force pi-odli@ed by a-xial. i,evoltitioii@ of @tl-ie p I rojectile, the lever 53 ilisttiitl revolves y in ti.cotiiiter-clockivise,direction tlii.-otigli aii an(,Ie sufficient @for: I)ei.@illittino; its coi-iiplete 2r, Avitlidraii7l fi@oin the iiol-cli 23 of sti@iker 2.0, tl-lus causinu saicl,striker to be iiistint,,iiiebiisly elea9ed. To infuke stii.-e that on fii-iii(y, t@lie adjustinelit of tlie:fuse, is iiot likely to 1)(, destroyed, LDcl to keep the i-iiovable fraii-ie s(I 30 31 integral -k7,ritli the ftise bo(ly dtiriliu the coiyiplet-,e ti,ajectoi@.y, tlielle is a-plilnger-riii,u, 68 pr6-k,iclecl witli@foiii- stc@el poipts 69. Said rin(- is iiiotinted ii@oi-iiid th.--:1@ey 4, axially movable ivithkn a leirctilar, colintersinl( .70 in the oo,ii,e of the - fuse. This rincr is iiot,iilall@ kept in tlie bottom of. said @otilitersirilc,by.,t flat spri.ng ivith -cli,u blades 71 (Figui-e 1),.reqtlng oii tlie. iaiortisecl plate 63. Between s,,iid pl@tte ,ip(l 4ii the hollow plate, 9)0 is fix6d an ei-ribossed clisk 't2 pi.-(,,sentiii(y a liolloiv eireiil,,ir edge 73 t]@e @t@el poi.iits 69. Wlieii the pi-ojectile is fii@ed the pliinger-ring crilsl-ie@s doivil,' througli inertia, the cut blades of 45 spring 71, -vil@fle the steel poiiits 69 are drivei-i into the edge 73 (Figui-e 2) tbus inte6-ratino; the mov,,ible fraille 30, 31 witl-i the ogive I of the 71@iLlse I)OC@y. li-i oi-der toi I)revei-it the plunger-rino, 6,9 '50 fron-I "011'1(Y up again, sliould rebotii-idiiig t, occui@ on fii-in-- tliei-e ire t@vo centi-ifuutl y bo]'Ls '@4 slidino-I ' i-noiintecl@ -within a tra s vei-se b re 75.'n@ 1.@e ii cl siibj ected to the a co 1 y 4 a tioii of a sl)rijig 76, said@ action bein(r Lclded r) 5 to and coiyibiiied tlitit of the ceritrifi-i(yal force. TliesR bolts tir(@,. li6ld iii their inoperatii,e I)ositions-(Fi(,ure 1) by tli(, riii(v 08 Ulitil tlle projectile is firecl. On firin,@ sai.d bolts i-nove off aiid are iiiade to-take iil) :60 the positioii shoivi-i i.ii Figiii-e 2, Damely, the position requiied foi- pr(,veiitiiig the rin(y 68 froiyi slidii-io, -Lipwards. The Pillioii@ 64 beijl,(,y ill co,.istai-it ii-iesli -Nvitli the iniier tcetli 65 o-E the disk 66, keyed on the drivin- sllaft is carried it the lowor pii-i on 183 carried by a siyiall shaft':84 re- 75 volviii-@ in it beii-iiio85 co posed of two na pai@ts.@ In said.be-,ti,ing is 4asteiied an@.eiid1,,iece sci-eAV:SC) acti-i-l'y 'I "I,,.tipoii oiie end of shaft@ 84. Iii tlic, illicldle of this ,;Iiaft is fixed a d6iiblc- escape wlieel ST, \vliieli c6-operates 80 @\,itli i, seetoi--slial)e(l pi,llet 88 fixed on the (T i.-o(I 89 of the b@il-,ince 90.. :Tlie i-od 89 pivots axially iii reli@tion t6 the filse, I)etAveeii, tile@ ("Ov,ell, of the plate@ 30 iii(I'tlie plite 31. ']-'he IoN@ler end of s:iid@rocl 8.5 i-ei7olx,es iii 1)1,ite 31, the iippetend t-@hereof ip iiiade @to be,,ii, itgtinst the extremity of ti;ii en(II)iece,sei.-eii, 91, located i.i-i the teiion 62,giii(Iiiii)@ tlle Tlie,rbd 89.@eartt tile ell(]. t]ICi,eof, @tlie balance; -90 Nvl)i(tli tN@,o I)addlcS pi-ojectiiio- be-, yoiid e@i,eli othei,. F4,acli 1)addle is constitutecl @)y,@-,t @ tliiii flexible ii-i'etallic -bl.,tcle, t-lie free (@xti.leiility Nvliereof- is @fittecl. - vvitli a@@sitiall@ 92@ iii the forin of ,t dlslc. 95 Tli(@ vei-ge of btlaiiee 89 cai.-ries, between i lie lial@iiiee ,,iid the pallet 88, t ben,el pinioii 93 -\vhicli. iiieslies with a secoiid bevel piiiion 94 ,tt one end of. ,t si-nall i-acliil sb,,ift 95, pivotiiig oii tlle oi-ie@si(,Te, in a bi-i(Ige 96 100 oi-i the otl)ei- sicle, iii aiiotliei- bi-idge lgpllei'eii-in,fter'desci@ibed. Beliindthebevel I)inloii 94, said sliaft 9,t)@ is provided witb a po@tioi -i 97, the di'aineter of -wllich is 1,,tr-er ,tnd NATliei-ein is fixed oiae, encl of the cyllll105 di-ical balaiiee sl)rin-, 98. . The other eDd@ of .9al(l spi@illo', is fastpn@ci @ to @,t split ring 99 adjustable in ingi-ilai@ positioii on @ a Cy lindi-ical shoulder loo, foriiied by @ a, stud 101 sci,lewecl oii pltte 31. @ Saici ri@ig 99 preseiits 110 a cyliiidi-icil pi-ojection ivhelleon is fridtioiiilly'iiiounted a s@lit i,ilig 103, acting as reo-tilator and fitted @witl-i a stud 104 cros I sed y t-lie -IIst -,pire of the spir,,tl. T116 detonation device,.in the first case o f115 a dotible-actiiig sbell (Figure 1) operates as follows: ' Prior to firilig, any @ill-tiiiied percussion of is m ble thr6uoh the primer 19 , lade impossi safet st.ay-bolt 13, - accoiiin-iodated be'tween 12,o y primei- 19 tnd point. 22 of strilcei-, which stay-bolt is kept iii this operative p6sition by t lever 16 aiid a. Pii-i 18. On removiiig tl)e latter, wlien firilig, said stay-bolt- 13 is mai-nttiiied in its opei-ative 1:)osition as lono, -125 as the ,tctioi-i of linear acceleration is SUPQrior to that of aiigtilar acceleratioii, that is. at least diii-ing the c6mplete passalre tlirougli the (Ytln-bore, the lever 16 beiiig -then kept, by F@e:.force of inertia @stroiigly applied. 130.

ageinst the stay-bolt 13. Thiis, any untimely function of striker, is rendered impGsaible,,. the point 22 of said striker merely penetrating into the bottom of the countersink stay-bolt 13.. Normitlly, on leavin(, the oruii ,tTid as sooii as linear acceleration is-completed, the lever 16, and tay-bolt 13 niove off under the aeS ti6n; Of the ceiitrifugal fotee, thus liberatin1( the pei-cussion members 19 aiiZI 20,. which a-re t;lien re,,Ldy to perform their functions. While lioilnally operating as a time-shell, t,he latter bursts on release of striker 20, the poiiat 22 whereof is made to pierce the iii primer 19, tightly. kept Avithin its location by the spring 11 (Figure 2), duringi the whole trajectory. However on percussion firin@g;, the primei--plunger 10 is projected f,o-rward, at the moment of impact and in ,,o the usual. manner, on the point 22 of the striker', this against the action of spi@in(- 11. @!5 In. the case of, the sin(rle-acting shell (Fio,- ure 2), everythin is performed as in t@e preceding i-nstane xceptthat@ any axial dis2r) placenlent of, the rimerplunger is made impossible thtou t-he fixed stay-bolt 24, which@ meaiis tha e shell' can only operate as a, time-shell. I,n tlii@ -wo-r@king@ form, the balance 90, prio.r 30 to firing, i& arreste,d in its coel@ed position by a pin 105 (Figures 8 and 9) which by inertia is@@withdra-wn in an known maianer y at the momeiit.of firing. @T'he devi:ce is composed of an oscillating 35 le-ver 106-baviiig a nose 107 and a pi-vot 108 ' This@ leve-r is stibjected to, the action of a spi-iiig 109 wliieh tends io hold' it in its operative position, its free ' end then coming ta bear on the hub of the escapemeiit wheel 4o 87. The balance 90 has@ a, short arm 110 w-h-ich at. the n-loment of firing comes to bear against the nose 107 of lever 106, after the inertia pin 105 lias been withdrawn. Since dui@iino, the whole duration of the 45 linear acceleration the effect of inel-tia actIng on the lever 106 is much greater than the action of t-he centrifugal force, tl-ie said lever will be: arrested in the position as represente&i-n Fi,-ure 10. 50 Th-us.the balance 90 remains imraobilized b.y the nose 107 as long- as: the linear acceleration co-ntinues, that is say during the c'ompletepassaoe of the projectile tlirough the bore of the cannon and a few meters in r)5 adaition;a;fter having left the gun.@ However@ as@soon as the linear acceleration@ ceases, the 1'ever 106 rotates on its pivot 108, tinder the@ action of the centrif ugal force an(I takes a position in which it is ret ned ai (30 within a countersi-nk Ill of the re(rulator f@ame by means of a small spr 112 which at the @end- of the stroke of tb@, lever 106 enters a c-@ivity. Ila in the countersiiik Ill.: TheL nose 107 is- at that time out of the 85 way of the course of the balance 90, which tl-ierefoie, iiia@, describe its first oscillation i-Indet, the actioii of its spiral sprilig 98 to ivhich it is mechanically connected by the aiiqle (year 94. In ordei- that the center of gravity re- 70 iiiii.iis in the axis of the fiise, another arm I 10 is pi-ovided for s ) mmetri 'c to the first oiae. The plan(, of osei . llatioii of the lever 106 j@ii(-ht be directed so that when the lever is witlidravvil, it gii-es to the balance an im- 75 I)ulse fici.litatino- its start@. I