US2116820A - Percussion fuse - Google Patents

Percussion fuse Download PDF

Info

Publication number
US2116820A
US2116820A US106033A US10603336A US2116820A US 2116820 A US2116820 A US 2116820A US 106033 A US106033 A US 106033A US 10603336 A US10603336 A US 10603336A US 2116820 A US2116820 A US 2116820A
Authority
US
United States
Prior art keywords
fuse
striker
housing
axis
detonator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US106033A
Other languages
English (en)
Inventor
Birkigt Marc
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2116820A publication Critical patent/US2116820A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
    • F42C15/26—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means using centrifugal force
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/26—Arbitrary function generators
    • G06G7/28—Arbitrary function generators for synthesising functions by piecewise approximation

Definitions

  • the present invention relates to percussion fuses for projectiles adapted to turn about their axis along their trajectory, and it is more especially, although not exclusively, concerned with fuses'ofthisv kind for projectiles of small calibre.
  • the object of the present invention is to provide a fuse of this kind which is better adapted to meet the requirements of practice than other fuses of the same kind made up to the present time.
  • the striker of the fuse is provided with a locking pin or the like which locks the striker for a certain length of time and which is ejected from its housing by the centrifugal acceleration resulting from the rotation of the pro,- jectileabout its'axis, and said locking element is kept in active position, when the projectile is in the state of rest, by elastic means the action of which upon said locking element takes place in the same direction as that of the forces of inertia developed when there are positiveaccelerations of the projectile along its trajectory.
  • Another feature of the present invention consists in interconnecting the striker and the, cover plate. of the fuse in such manner that said striker,
  • The'following description relates to the case of a percussion fuse more especially intendedfor a shell of small calibre adapted to be fired in a fire arm provided with riflings.
  • the fuse is devised in such manner that the :striker with which it is to be provided is locked for the desired period'of time by a locking pin or the like capable of being ejected from its housing, under the effect of the centrifugal acceleration resulting from the rotation of the projectile about its axis.
  • the body of the fuse consists of a metallic piece I which is provided at the rear end with a chamber 2 in which are housed a priming element 3 and-a detonator 4, this chamher being closed toward the front by thebody of the fuse itself, in whichare provided cylindrical bores 5,- preferably of increasing diameter toward 5 thenose of the fuse, so as to accommodate and guide a striker 6.
  • -I provide in the body of the fuse, in a direction at rightangles to that of the axis of said striker 6,.
  • a housing 8 capable of guiding the displacements of a safetypin 9 the center of gravity of which is in eccentric position with respect to the axis-;;of--the fuse, saidjpin further including, for 5 instance, twobranches between which said striker can move in the direction of its axis, said striker being provided withia collar II), in such manner that its point; is kept at a. suitable distance from the priming element, of, the detonator.
  • this docking pin 9 is caused to coact: with an element capable of keeping it in position qand ,subjectedqto the-action of an elastic systems
  • This elastic system keeps said element in active: position when the shell is in the position of rest, andit is arranged to act on said element in .the'same direction as the forces of inertia when there are positive accelerations of the shell along its trajectory.
  • - 'I'he element for keeping the locking pin 9 in position consists of a sliding part II, for instance of cylindrical shape, capable of moving in a bore [2 extendingin a direction parallel to the axis of the fuse, in the front part of body I, and opening into, housing 8,
  • bore I2 is located 40 in the frontv part. of the fuse, with respect to housing 8.
  • Member H is preferably, although not necessarily, fitted with an inclined portion, for instance of conical shape, l3, capable of coacting with a notch M, of corresponding shape,
  • the elastic system above referred to consists of a spring l5, for instance of the coil type, interposed between element II and the bottom of bore l2. Therefore this spring urges the locking element ll toward the rear of the projectile, by applying it into notch l4.
  • I may also, eventually, provide means for braking the displacements of said element I I in its housing and therefore for delaying the release of pin 9, said means being preferably adjustable.
  • I might cause element I l to coact with a dash-pot of adjustable restricted section.
  • this point is at a certain distance fromnthe muzzleof the gun from which .the projectilewasfired; which, for practical purposes, corresponds to a :safety of several meters.
  • the cover plate I of the fuse (which cover plate is then preferably given aconcave shape) and striker'li are interconnected, for instance by. securing one to the other.
  • a percussion fuse which comprises, in coma-binati'on; a body having a longitudinal axis, a .detonator and a striker within said body, said detonator' and said striker being movable relative :to each other-longitudinally of said body for --br'inging said striker in contact with said detonator, said body being provided with a transverse housing, a member slidable in said housing for normally preventing said relative movement, said member having its center of gravity located in eccentricpositionwithrespectto the-axis-of said body, a bore in said body extending transversely to said.
  • said-member being provided with aconical hole at the front surface thereof, a member of cylindrical: -shape having" a conical end adaptedmo slide :in said bore and to'have its conical-end engaged in said hole; said bore extending from said housing toward the front end of said fuse, and a coil spring fitted in said bore so as to urge said cylindrical membe'routwardly from said boreand toward the 'rear of said body for keeping said'conical end-engaged in said conical hole as long as the acceleration is above a predetermined Value 5.1 l
  • -A fuse for a projeetileintended'to move along its trajectory with a rotary movement'aroundits axis comprising in combination a fuse body, a detonator and a striker withi-n 'said body, said striker and said detonator being movable relative to'each'other for bringing said striker in contact with said detonaton-means for normally preventing *s'aid movement, said means i i comprising a transverse housing said body,a lockin g'member slida'blein said housing and'havin'g' its center of gravity located in eccentric positionwith respect to the axis of said body, "an'elemeritymovame in 1 said body independent of sai'd" striker anddetonator in a iongitaeinar directioir'of said body and adapted to engage said'member at lie-front side thereof and elastic means for urging said elenient against "said niemberin a'dirctionto

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Vibration Dampers (AREA)
  • Air Bags (AREA)
US106033A 1936-09-11 1936-10-16 Percussion fuse Expired - Lifetime US2116820A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE202578X 1936-09-11

Publications (1)

Publication Number Publication Date
US2116820A true US2116820A (en) 1938-05-10

Family

ID=3864680

Family Applications (1)

Application Number Title Priority Date Filing Date
US106033A Expired - Lifetime US2116820A (en) 1936-09-11 1936-10-16 Percussion fuse

Country Status (7)

Country Link
US (1) US2116820A (pl)
BE (1) BE417406A (pl)
CH (1) CH202578A (pl)
DE (1) DE672041C (pl)
FR (1) FR826520A (pl)
GB (1) GB474655A (pl)
NL (1) NL47791C (pl)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421266A (en) * 1937-11-06 1947-05-27 Mefina Sa Fuse for ordnance projectiles or bombs
US2741184A (en) * 1946-02-11 1956-04-10 Harry H Deringer Delayed arming fuze for a projectile
US2821925A (en) * 1956-04-16 1958-02-04 Ufa Universal Finanzierungs Au Double-acting percussion fuze provided with a safety device for projectiles
US3450047A (en) * 1967-11-08 1969-06-17 Us Army Spin stabilized projectile with self-destructive capability

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421266A (en) * 1937-11-06 1947-05-27 Mefina Sa Fuse for ordnance projectiles or bombs
US2741184A (en) * 1946-02-11 1956-04-10 Harry H Deringer Delayed arming fuze for a projectile
US2821925A (en) * 1956-04-16 1958-02-04 Ufa Universal Finanzierungs Au Double-acting percussion fuze provided with a safety device for projectiles
US3450047A (en) * 1967-11-08 1969-06-17 Us Army Spin stabilized projectile with self-destructive capability

Also Published As

Publication number Publication date
FR826520A (fr) 1938-04-01
CH202578A (fr) 1939-01-31
BE417406A (pl)
DE672041C (de) 1939-02-20
NL47791C (pl)
GB474655A (en) 1937-11-04

Similar Documents

Publication Publication Date Title
US3995557A (en) Base fuze for a spinning projectile
US2116820A (en) Percussion fuse
EP0068534A2 (de) Sicherungseinrichtung für Drallgeschosszünder
US2712284A (en) Delayed arming safety fuse
DE3740967A1 (de) Pyrotechnischer zuender fuer geschosse
US2076602A (en) Fuse for projectiles
US3410214A (en) Percussion fuze
DE912064C (de) Mechanischer Zerlegerzuender
US2446019A (en) Detonating or impact fuse
DE69305907T2 (de) Sicherheits- und Schärfvorrichtung für Zünder von Geschossen mit einem Erschütterungsschutzmittel
US4715282A (en) Cluster bomb grenade with means for spin rate attenuation
US2043266A (en) Fuse for projectiles
DE1155695B (de) Aufschlagzuender fuer Raketen
ES8204849A1 (es) Mejoras en la construccion de espoletas para proyectiles ra-yados.
DE3133364A1 (de) "staudruck-zuender"
US3786754A (en) Firing delay for point detonating fuze
US2335842A (en) Fuse
DE3740966A1 (de) Pyrotechnischer zuender fuer geschosse, raketen, bomblets und minen
US2427671A (en) Fuze
US2604045A (en) Missile
US2541603A (en) Fuse
US1826190A (en) Percussion fuse for bombs and other projectiles
EP0342399A1 (de) Blindgängereinsatz für einen Geschosszünder
US3511184A (en) Inertia impact firing mechanism for munitions having retarding means
US2236495A (en) Percussion fuse