US1062810A - Percussion-fuse. - Google Patents

Description

K. WIESBR. PERCUSSION FUSE. APPLICATION :FILED MAY 11, I1912.

1,062,8 1 O. Patented May .27, 1913.

, the pere tIAL QF BREDENEY,

SELLSGHFT, @E ESSEN-CLTHE-RUER, GERMANY.

cussion-Fuses, of Which the following is specification.

Thi invention relates peto issioi; fuses in Wl h all the moving paris 'are located Withinrtlhe its? housing n n-:.5 the object o' the invention is to pro Tide e. fuse. of this ltind which is distingnishol hv great sensitii' ness and by accurate noti-.ni not onlyv When the ptojectile strikes 'withthe -oint buty `also 'when it strikes with the hase. ln

accordance with the present lit'ention tlie object attained in this nninnen that one the ports carrying the ignititin inenns is actua by an ignition spying which is held bock by is. latch` 1nd that :i 'ieicnssion hninniet' is utilized for This percussion haininer can inoi'o in several directions -on account of its inertia,l atteibeing released fronizi .safety device piovided tor it. and the liannnei' is so constructed that it will operate thelntch in Whatei'ei direction it moves.

So-colled Contact nses' ifoi` sen mines are already known, tlnit is to say fuses which are piovided with n percusgion hammer et'- lng lvjfond sin one of the ontei surface of th@ the ports calin/'ing a actuated bj; in ignon heid boel; by titoli. released eitheiI e. hits the inlinebj* o). the perou. on hni'znnei; oi: in.'

i hin point. lt lies nl fuses for torpedo s. ieleziso of the lntcn cnn notti .1.

accomplished by impact with t ly only,y he percus sion hammer.

The object of the inse of. the present invention diiletentiates from that o1C the known fuses therein, that the inertia of the percussion hammer is utilized to produce o projectile fuse, which is always set autr inaticnlly in fiction, Whether the impact of the projectile be made by the point or the base.

One embodiment of the invention is illus tinted in the. accompanying dmwings Where Sp ciication of Letters Eotent.

E :dented Moy 27, NH3.

a bose percussion fuse has been shown, and

iereot'- i l l 'nre l is section along the longitudinal axis of the fuse; Fig. 2 a section on line 2 2 oic Fig. l 'troni the let't; Fig. 3 a aeetion on line 3 3 of Fig. l seen from nbove'nnd Fig. ai n section on line ll--d of lli 9 seen i'iom above. A

Che inse body consists of two hollow7 Si and B connected by vscrew threads. 'ine toi-wund bolloY part has two chainbeis lll und B2 divided byn pni'tition 7.23 (coin )zii-ev Fig. Q) und is closed np by a sci-ew plug C. which contains the fnlminato rflic chunioei B. lwhich is formed by two bores, oiiset. stepwise, contains a, cop shape-d percussion hummer D which foaclns toi'n'nid into the bore @2 of the sciew plug C. The percussion hmnniei` D is actuated by o spring E. T 'ch :ibnts with @ne end against o Washer lying on the partition o, and tends to push the perf; ssion lininniei' in the direction oit piercing the fulminnte cl. The pe tission hammer D is held in itsl tinnsport gfosition, illustrated in the drawing, b vnieans ot two double-armed pziwls tt, which are ndapted to oscillote on pins g1 Within :ipei'tui'es l* of the hollow part l, the axes of which pins tun at right angles to the longitudinal axis of the fuse. i701' this pinpose vthe pools G are at one end provided with toes g2 which engjnge with an nnntilei tiene Z2 on the percussion hfinin e: l), The o cnii'v' toes g3 which siinnl nieously l r t f iinst ai collar h1 on n. sliding bolt ti.

L. e* bolt ^i.

tends ,titli its lo nto miie)y clniinbeil` of the holl'.' nl Reaches with its i'ein'toict-,d

bote nl; closed on the ontJ the hollow".v port and I thisl slid-- t is displnceablc in both directions ends of the imi-tis C+ 4sure is so calculated that the friction caused thereby is able to exercise only a small resistance against any displacement of the y sliding bolt H. "When the projectile therefore hits a target, only a slight impact either at the point or the base Will be necessary to cause the sliding bolt H to be dis# placed on account of its inertia either toward the point or toward the base of the projectile,l as the sliding bolt H is only held by the friction' from the toes g3 after the swinging out of the dogs J. In either case the collar 71,1 of the sliding bolt H will disengage the toes g3. The ends of the paWls Gr that carry the toes g2 Will then fly apart, actuated by the centrifugal force, so that the toes g2 Willslide off the collar cl2 of the percussion hammer D, thereby setting free the percussion hammer D, which thereupon by means of the spring E Will driye its firing pin d1 into the fulminate c1 thus causing the ignition.

l. In a percussion fuse, the combination With ignition means comprising a. fulminate and a firing pin; a percussion hammer carrying one of said ignition means, a tiring spring tending to drive the hammer in the direction to fire said ignition means; arresting means for said percussion hammer, normally holding said percussion hammer retracted against said firing spring, a releasing bolt engaging said arresting means and movable on impact in various directions only by the action of inertia, said bolt being adapted to release said arresting means when moving in any direction, and a casing completely inclosing the percussion hammer, the firing spring, the arresting means and said releasing bolt.

2. In a percussion fuse having a main body inclosing 'all the moving parts of the fuse, a fulminate seated in said main body; a percussion hammer; a firing pin on said percussion hammer; a spring acting between the mainbody and the percussion hammer to drive the latter against the fulminate; arresting means normally holding said percussion hammer in a retracted osition, said arresting means comprising a ange 0n said percussion hammer, pawls mounted in said main body to oscillate in radial planes through the longitudinal axis of the fuse, each of said payvls having a long and a short arm, the long arms of the pawls normally engaging said flange; a sliding bolt, mo-unted to slide axially in both directions in the main body, a collar on said sliding bolt normally inengagement with said short arms of the pawls; releasing means for said bolt actuated by the centrifugal force.

3. In a percussion fuse having a main body inclosing all the moving parts of the fuse, a fulminate seated in said main body; a percussion hammer; alfiring pin on said percussion han'uner; a spring acting between the main body and the percussion hammer to drive the latter against the fu1- minate; arresting means normally holding said percussion hammer in a retracted posi tion, said arresting means comprising a flange on said percussion hammer, pawls mounted in said main body to oscillate in radial planes through the longitudinal axis of the fuse, each of said pawls haying a long and a short arm, the long arms of the pawls normally engaging said flange; a sliding bolt, mounted to slide axially in both directions in the main body, a collar on said sliding bolt normally in engagement with said short arms of the paiyls; releasing means for said arresting means, com rising a plurality of dogs fulcrum'ed to swing in a plane at right angles to the longitudinal axis of the fuse, a groove in said sliding bolt normally engaging said dogs; the dogs swinging out of said groove actuated by the centrifugal force leaving the sliding bolt free for displacement in any axial direction on impact, whereby said pawls Will be free to'release said hammer, the spring actuated hammer thus striking the fulminate.

The foregoing specification signed at Barmen, Germany, this25th day of April,

ALBERT Norm.

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