Патент USA US2404135код для вставки
July 16, M46. ZAWMSS P. KIANGI FUSE CONSTRUCTION Filed July 51, 1942 2 Sheets-Sheet l Piaa' ‘7X76 any , July 16, 1946. P. KIANG FUSE CONSjTRUCTION Filed July 31, 1942 ' ' 2,404,135 2 Sheets-Sheet 2' . 3. ,43 I 7 7 42 43 Pjaa W Patented July 16, 1946 ' 2,404,135 UNITED srAIae-s 2,404,135. FUSEGONSTRUCTlGN" P-iao:Ki-ang;-;Washington; n; o speneatisnrmy-sr, mrzgserramo. 453206911‘ (crime-r5)“ The. present invention: relates tora fusercone str-uctionfor explosive projectiles. the It is a principal object of my inventionytosproe vide a fuse constructiomof the_-set..-hack type espe cially adapted to be used with smooth. bore ex-. plosive projectiles of. thenon-rotating. type; such as, may be used in the smooth bore barrels of. trench mortars or the like. It. is a very important object of my invention to provide a fuse construction which is,-not. only. bore safe, but. is absolutely safe and maintained in an unarmed condition. until after the fuse :Wlth its projectile has reached its..maximum ordinate and is falling towards the ground. . It, is also an important object of. my, invention t0~proVide a. fuse construction having. two func-; tions of either super»quick.. or delayed action. especially adapted. to be used‘ with. smooth bore projectiles and havingmeans. for selectively ad. 2.. position. assumed whemtheshell eemnetmre ground; ' . ' _ :7 ' ?gure 44 15-3,, longitudinal?sectiompartly;ineelezw vation, taken. at. right. angles to Figureqle ands . showing_ the,- selecting; means- adj-ustedltq select. adelayed action-tor thef-usez, » v, . - 1 V I Figure. 5: is .l a, horizontal,-. section; takenz. on! the. line 5.—.5..ofrli’igure.4; ' . ' Eigure 6. is. a. fragmentary-V longitudinal section‘ showing thedetails vof..the. selecting; sliderwithtthe-i slide. locked; in. the. position. tolselectzi a. super quick action of the fuse;c > 1 . ~ . J ' Eigu-re 7. is, a. horizontal‘ section. taken», onethe line ;'I.'—.1f of,‘ Figure, 1',_.fi1r.then illustrating,- these?‘ l'ecti’iigplidei. ' > 1 . '. . ; Eig'ure?daa. horizontal. section takenion the; lined-+8‘oiiEigunafianm . _ . . Eigure 1.9 is. a..fragmentarya enlarged‘section, takenQonv the; line . 9.—.9; ofiFfi-gura 15; showing the justi'ng, the fuse to give either a delayed or a. 20 detailsroi the safety belt: forlocking: the fuse; super-quick action,, together with. means to. lock. the, selecting, means in the, selected. position im~ mediat'el‘y upon. the projection of- the fuse-with its projectile from. the barrel of_the projecting de.Vl'ce. against} arming, before the. pun‘ action‘ ot, the. fuse; anriitsprojectile. Y ; . V -' Reierring, to‘ Figure 7L O?the. drawingaa ~f,use body‘! is provided withethreadsrlu. ‘for-attache» ment'eto' anrexplosiveprojectiler At. the: noseen d’. It is a further. object of'thepresent invention 25 on the body .9,; a.£use=.nose__:ring. I] t of rolledlrn eta}; to provide a fuse construction of the character is. secured in placetnlretainj a .fusernose cup; 12> described‘ which is absolutely safe. for, handling. of thin .met’al.v . 'llhe ifalse'body 9. iepnovided-with; and storage purposes and". which. is positively. a longitudinal‘, bore. oivarying dimensions. At‘; locked; against‘ arming until.“ the. fuse, with. its pro. I thenose and} the -fusehody, horeis enlarged-asset; jectile‘ has been projected‘from the barrel'iof the projecting device and has passed‘ its maximum. ordinate. It is also an object of‘ the present‘ ihventionto. provide a fuse construction especially adapted? to'be used with smooth bore projectiles..and‘having selected functions of‘ delayed or: super-quick. action with a simple means for selecting either of the desired fuse actions merely by a manual; rotation. of. the fuse body. before. placing. the.» fuse with its explosive projectile in. the ‘barreLof the. projecting device. t3 toprovid'e ashoulder. IA, unon ivhichciscseatedi. the .?ringl Kiln. cup. 7 IE which.v is. retained‘ in, place. by the fuse nose cup I2' and ring ll. .- Seated: with-in thef?ring, pin, cup. ii and. secured. in any suitable; fashion is a. ?ring: pin. I 6., It, shall-Ida. be; noted;‘ that‘. the. fuse/nose.- ring; H is‘ secured to; the body, Biinsuch-mannerestO render theoper-.. atingmeclianisms within the .fusebody completelyair. andrwatertightn . , Sliiiahly- positioned within\ the bore l-T-g istrthe: body. llllknowncass a. primer adapter or. carrier... Theprimer. < adapter .body. !& is. . provided. with: as longitudhalfsbore. and‘. seated within the; bore at: a. central‘point, along ltSa16ngjJh.~. is. the. primer. L91, ing features are fully enclosed and are. rendered"; 45 Thipri'mer‘ m: is’ retained"in‘ positionj by" the}; threaded collar: 21!). The longitudinal‘ bore? ZJ-of: completely air-and watertight; the primer.» adapter. body. “his: constricted:- atitss I Further objeotsand advan’c-agesiof:v my invem rearward‘end~ to provide a seat for asaietphalli tion will be apparent by reference to thezfo-llow-r 2.2. whichnlwhenf in. position, shown» in’. Figs-uresrl ingrspeci?cation and drawingsinwhichc Eigure l is a longitudinal. section~ of1 the- fuse? 50 and, zpreventsthe, firing pin- Hi from; striking; the. primer. iii‘. to, ignite the-fuseriandt thus; ofimylinventi‘o-ni with the parts lcclsed-in-‘inopere tainstheiusein an unarmedmndition; . able position to prevent an arming ofrthe fuse; It is a still further objectof- my invention to; Drovide a fuse construction in which all operate Figure 2 is a longitudinal‘ section‘ similar- to Theprimer adapter, body. L8; Whichiis slidabhp Figure} butwit'h the-parts shown in thepositi'on 55 nositionedwvithimthebore L1,, is_»normally'lockedr. againstsliding, movementrim direction). The‘. assumed immediately upon projection ofjth'e fuse. locking: means; is. releasablewby, inentia- 'llQGIlrt‘hQ and it's projectile from the barrel of” theprojjectl projection of. the; fuse and‘ its; sheila-from; th'QiQl‘Qr ing device; Figure 3' is a longitudinal sectionpartly in ele jecting, barrel... ‘I10 preventthe- primer adapter‘. 7 body, from slidingglforwardly-e towards, the JIQSBgOf; vation of‘the fuse, showingihe partsinthearmed. 60 the. fuse" a, locking meanssisfprovideel comprise. 2,404,135 3 ing a safety ball 23 resting in a groove 24 of the primer adapter body l8 and also abutting a shoul der 25 formed on the wall of the bore I‘! in the 4 projectile from the barrel of the projecting de vice. With the fuse construction embodying the locking device of my invention, it is absolutely safe to store and handle explosive projectiles to the position shown in Figure 1 of the: drawings, Cl which the fuse has already been ‘attached in a body 9 of the fuse. With the safety ball 23 in . it will be seen that the primer adapter body l8 is prevented from sliding forwardly toward the nose of the fuse. The locking means to prevent condition which, upon placing in a projecting de vice and upon projection to a point past its max imum ordinate will result in an immediate arm ing of the fuse. a sliding movement of the primer adapter body I have also embodied in the fuse construction I 8 in a rearward direction towards the main body 10 of my invention, a means for giving either a de of explosive charge comprises a safety bolt or layed or super-quick action of the fuse for igni plunger 26 of circular cross section. The safety bolt 26 which is maintained in the position shown 1 -. tion of the explosive charge. The means for se lecting either the delayed or super-quick action in Figure 1 when the fuse is locked and unarmed is slidably positioned within a bore 2‘! of the 15 of the fuse upon impactis exceedingly simple and fool-proof and does not necessitate the use of fuse body 9' and a bore 45 in the delay casing tedious ?ne adjustments located on the outside 35. Spring ?ngers 28, as shown in detail in Figure 9 of the drawings, engage against a shoul of the fuse body. , g . _ Referring to Figures 4 through 8 of the‘ draw der formed by the ?attened surfaces 29 at the ings, which show the details of the selecting de end of the'safety bolt 26, thus holding the safety vice for selectively adjusting the fuse to} give bolt in the position shown in Figures 1 and 9 of either a delayed or super-quick action, a bore 33 the drawings and preventing any sliding move within the body 9 is provided to conduct the ment of the primer adapter body [8 toward the ?ame from the'exploded primer l9. Positioned rear of the fuse body. The thickness and the tensile strength of the spring ?ngers 28 may be 25 within an enlarged bore 34 adjacent to the bore 33 is a body 35 constituting a delay case and. varied or adjusted to the requirements of the in housing, the selecting slide and delay powder dividual fuse with its projectile. charge, as will be described hereinafter. A thin Referring to Figure 2 of the drawings, imme metal plate or safety disc 36 is interposed be diately upon the projection of the fuse and its tween the bore 33 and the delay case 35 and func projectile from the barrel of the projecting de tions as a gasket responsive to the pressure of the vice such as a trench mortor or the like, the in ?ame from the primer [9 to seal the delaycase ertia of the primer adapter body I8 will be suffi 35 with respect to the body 9 of the fuse and pre cient to overcome the pressure of the spring ?n vent a, blow-by of ?ame such as would result in gers 28 against the shoulders formed by ?attened an immediate explosion of the main explosive surfaces 29 of the safety bolt 26 and will force charge even if the fuse is set to ‘a delayed action. the safety bolt 26 to move rearwardly within the The disc 36 also is punctured, as shown in Fig bore 2'! and bore 45 to assume the position shown. Thus, the primer adapter body l8 will beslid ures 5 and 9 of the drawings, to form the spring ?ngers 28 for locking the safety bolt 26, as de.-. 40 scribed previously in connection with Figures 1 and 9 of the drawings. Slidably positionedin a. ings, and in this position will enable the safety transverse passage in the delay case 35 is the ball 23 to fall out of the groove,“ and be freed selecting’ slide 31. The selecting slide 31, as within the enlarged part 30 of the bore I‘! in shown in Figures 6 through 8 of the drawings, is the fuse body 9. Thereafter the fuse will be in a position to be armed and the primer adapter 45 provided with a bore 38 and an imperforate bore 39. When theslide 3'! is in the position shown body [8 will be free to slide forwardly towards rearwardly by inertia within the bore I‘! to as sume the position shown in Figure 2 of the draw in Figures 6 and 8 of the drawings, the bore 38 is in alignment with the bore 40 of the delay cas ing 35 to provide a direct through-passage for As the fuse and its projectile pass the peak of its trajectory or its maximum ordinate after be 50 the ?ame from the primer l9 to reach the main the nose of the fuse when such a directing force is applied. ing ?red from a trench mortar or the like and body of explosive charge. With the parts in this position providing a direct through-passage for the ?ame, a super-quick action of the fuse isob tained. primer adapter body l8, can slide forwardly For a delayed action the slide is moved to the within the bore l1 towards the nose of the fuse, 55 position shown in Figures 2, 4, and '7 of the as shown in Figure 3 of the drawings. Since the drawings, and when the slide is in this position, safety ball 22 is no longer resting within the bore the imperforate bore 39 is in alignment with 2|, the point 3| of the ?ring pin l6 can contact directly upon the casing 32 of the primer l 9 when , . the bore 48, thus blockng off a direct passage for the primer adapter body I8 has moved forwardly. to the flame in the chamber 33 to ‘the main body of explosive charge. The pressure of the ?ame and Thus the fuse will be armed and upon impact, is commencing to fall towards the earth, the safe ty ball 22 will fall out of the bore 2|, and the the ?ring pin l6 will explode the primer [9 to ignite the fuse. I have described thus far a set-back fuse which is especially intended to be used with explosive projectiles of the smooth bore or non-revolving type,rsuch as are used in the barrels of trench mortars or the like. This fusew construction which I have described is exceedingly safe, since the fuse is normally locked to maintain the fuse in an unarmed condition in which it is absolutely impossible for the ?ring pin to strike the primer. However, the locking means for the fuse con struction as described is releasable by the inertia obtained upon the projecting of the fuse and its burning gases within the imperforate bore 39 will seat the slide tightly within the delay case 35, _ thus preventing the blow-by of any ?ame such as would effect a super-quick action of the fuse. With the passage 49 blocked by the imperforate bore 39, the ?ame from the primer and in the bore 33 must pass through the charge of delay powder 4% and the relay powder 42 to reach the main body of explosive charge, thus giving arde layed action to- the fuse. As will be seen in Fig ure 4 of the drawings, the delay powder 41 is in the form of a threaded core and is threaded with in the delay case 35. The threads serve to pre ' vent the displacement of the delay powder by ‘any 2,404,135 5 rough handling of the fuse. Also, as shown in Figure 4 of the drawings, the relay powder 42 for conducting the burning ?ame from the delay powder 4| to the main body of explosive charge is held in position by the threaded collar 43. It 6 until the fuse and its projectile are projected from the barrel of the projecting device. The locking means, as shown and described, is auto matically releasable by the forces of inertia ob— tained when projecting the fuse with its pro will be seen that when this threaded collar 43 is jectile from the barrel of the projecting device removed from the body 9, the relay powder ring to permit the arming of the fuse by the turning 42 may be removed and the delay case 35 con over of the fuse with its projectile after passing taining the slide 31 and delay powder 4! may its maximum ordinate. The fuse construction 10 which I have invented is also provided with a likewise be removed for inspection or repairs. As described above, the slide 31 may be moved to the position shown in Figure 6 of the drawings means for giving either a delayed or super-quick action upon impact and with a simple and easily to give a super-quick action or may be moved operable means fOr selecting either the delayed to the position shown in Figures 2 and 4 to give or super-quick action. It will be noted that the a delayed action of the fuse. To move the slide 15 means for selecting either the delayed or super 31, it is only necessary to rotate the fuse and its quick action of the fuse is operable in response shell before placing the shell in the barrel of the to a manual rotation of the fuse body before projecting device. An indication 44 on the sur the fuse and its projectile are placed in the bar face of the fuse body 9 is provided, and it is rel of the projecting device, and since the se preferably a depression which may be felt by the 20 lecting operation is so simple, it may be done operator so that the fuse may be manipulated in without resort to ?ne adjustments and in total _ total darkness, if necessary. When the fuse is darkness, with absolute certainty as to the se- ‘ rotated so that the depression 44 is facing up lected action of the fuse. ward, the slide will move in response to gravity It should be understood that while the vfuse to assume the position shown in Figure 6 of the 25 construction which I have shown and described drawings and select a super-quick action of the is particularly adapted to be used with smooth fuse. When the fuse and projectile are rotated bore or non-rotating explosive projectiles, the to a position with the indication 44 facing down fuse construction as shown and described is also ward, the slide 31 will be moved in response to capable of being applied and used to advantage gravity to the position shown in Figures 1 and 2 30 with rotating projectiles, if desired, since the fuse of the drawings and select a delayed action for and the fuse controlling means are responsive to the fuse. the forces of inertia as obtained in any explo The selecting device, as described above, is so sive projectile immediately upon the projection designed as to be locked in the selected position of the projectile from the barrel of the projecting immediately upon the projection of the fuse and 35 device. its projectile from the barrel of the projecting de It is to be understood that the construction vice. Upon projection of the fuse and its projec shown and described is merely an illustration of tile, the set-back inertia of the primer adapter body I8 is sufficient to force the safety bolt 26 to the preferred embodiments and that such changes may be made as fall within the purview of one move past the spring ?ngers 28 within the bore 40 skilled in the art without departing from the 45 of the delay case 35, as previously described, spirit of the invention and the scope of the ap to assume either of the positions shown in Fig pended claim. ures 2 and 6 of the drawings. When the selecting I claim: slide 31 is in the position shown in Figure 6 of A shell fuse comprising a body having an axial the drawings, the safety bolt 26, when moved 45 bore, a carrier slidable in said bore, a primer car in response to the inertia of the primer adapter ried by said carrier, a rearwardly projecting ?r body l8, will be moved through the bore 45 to a ing pin in the forward end of said bore against position behind the slide 31, thus preventing any which the carrier is adapted to carry the primer, further movement of the slide 31 and locking the means normally locking said carrier against for- 7 slide in the selected position to give super-quick 50 Ward movement in said bore intermediate the action of the fuse. If the slide is in the selected ends of the latter and with the primer spaced position, as shown in Figure 2 of the drawings, from the ?ring pin, said locking means being for giving a delayed action of the fuse, the released to permit such forward movement upon safety bolt 26 will pass, when moved in response relative rearward movement of said carrier in to the inertia of member l8, through the bore 38 55 said bore due to set-back inertia, said body de in the slide to lock the slide in this selected posi ?ning a pair of axially extending ?ring paths tion of delayed action. It should be noted that behind the primer and a transverse passage in the safety bolt 26 is of circular cross section with tersecting one of said paths, control means free the exception of the ?attened end surfaces 29, ly slidable in said channel by gravity between and that when the safety bolt 23 is moved to the 60 blocking and freeing positions with respect to position shown in Figures 2 and 6 of the drawings, said one of said paths, a plunger mounted in the spring ?ngers 28 will frictionally grip the said body for relative axial sliding movement, enlarged circular cross section of the safety bolt and means holding said plunger in a normal po 26, so that the safety bolt 26 cannot thereafter sition wherein said plunger engages said carrier be moved, and thus assuring that the selecting 65 to hold said carrier in its normal position, said slide 31 will remain locked in the desired posi holding means being released due to set-back tion. inertia of said plunger and carrier so that said I have shown and described a fuse for explo plunger and carrier move relatively rearwardly sive projectiles especially adapted to be used with with respect to said body to positions wherein smooth bore or non-rotating projectiles which 70 the locking means for the carrier is released and is absolutely safe for storage and handling pur the plunger locks said control member in selected poses and which is normally locked to maintain position. the fuse in an inoperable or unarmed condition PIAO KIANG.