US1650300A - Percussion fuse for projectiles, aerial bombs, and the like - Google Patents

Percussion fuse for projectiles, aerial bombs, and the like Download PDF

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Publication number
US1650300A
US1650300A US143260A US14326026A US1650300A US 1650300 A US1650300 A US 1650300A US 143260 A US143260 A US 143260A US 14326026 A US14326026 A US 14326026A US 1650300 A US1650300 A US 1650300A
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Prior art keywords
fuse
striker
impact
movement
elements
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Expired - Lifetime
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US143260A
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English (en)
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Remondy Leon Emile
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Individual
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Individual
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    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
    • F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze

Definitions

  • This invention relates to fuses for projectiles and more particularly to percussion fuses for use in projectiles of the types adapted to be fired from a gun or dropped from an aeroplane.
  • One of the objects offthe present invention is to provide an improved fuse of the type disclosed in my Patent Nos. 1359,0753, dated June 19, 1923, and 1,562,054, dated November 17 1925.
  • the fuse of the present invention is of the type embodying primer and striker elements that are'longitudinally disposed in substantial alinement in the fuse body, the forward one of said elements (preferably the striker) being normally held against movement relative tothe rearwardly disposed element (preferably the primer or percussion cap) by suitable means which imparts the movement of the projectile to said forwardly d1sposed element.
  • the said means Upon impact of the pro ectile with its objective, the said means s rendered inoperative by a suitable lmpact transmitting member and the forwardly disposed element is released and the latter now moves with the residual speed 1) of the impact transmitting member, which speed may be zero if the objective offers sufficient resistance.
  • Figure 1 is a sectionalelevation of a projectile fuse, according to the inventiomthe members being shown at rest.
  • Figure 2 is a corresponding sectional elevation showing the members in the position they occupy at the moment the mechanism operates as a result of an encounter with an obstacle.
  • Figure 3 is a sectional elevation showing the application of the invention to a projectile of the bomb type, the members being shown at rest. 7
  • Figure 4r is a corresponding elevation showing the members in'the position they occupy at. the moment of cperatien of the fuse resulting from impact with an obstacle offering little or a medium amount of resistance.
  • Figure 5 is a corresponding sectional elevat on, showing the operation of the fuse against an obstacle offering considerable resistance.
  • Figure 6 shows, in sectional elevation, a modified form of the invention applied to a bomb, the members being. shown in the position of rest.
  • Figure 7 shows the operation of this fuse against an obstacle offering little or a medium amount of resistance.
  • A is a fuse body in which the rear element B, preferably the percus- SlOIl cap, as shown in the drawing, is made to follow the movements of the said fuse body and consequently the movements of the projectile.
  • the front element of the mechanism preferably the striker C. as shown in the drawing, is normally held apart from the percussion cap B by a removable member, such as a pin C and ifdesired a spring C of the type disclosed in my prior Patent No. 1.459.- 075, or any other suitable compressible member.
  • the characteristic fe ture of this new fuse is that the mechanism is combined w th an impact transm tting member D normally retained on the fuse body or on the projectile. for example by a nin D This membar. which, until an obstacle is stru k, s tied to the. movements of the p ojectile. is released from the latter under t e e e t f t e impact against the obstacle. throuq'h the r moval or shearing of the ret inin member D and can thu .-immerliatelv or after having effected an nward movement into the fuse body transmit to the striker the action produced by the obstacle. that is to sav.
  • the impacttransmittmg member D may be very light, andmay consist, for example, of a thin metal cup presenting'to the obstacle a very wide contact surface this cup may be normally held on the fuse body A by a pin D or by a spring D causing a flange (Z provided on the said cup to bear against a shoulder a of the fuse. If desired both the pin D and a weak spring 11 ,01" any other compressible mem her, may be used.
  • the cup D Underthe action of an impact with an obstacle, even a very light one, such as the fabric of an aeroplane, the cup D, which may be made to proj ect'slightly overthe fuse A will be stopped, so that its speed which till then was the same as the speed V of the projectile, will be immediately reduced to a value '0, equal or approximately equal to zero, while the projectile continues its movement at the speed V, which causes the pin D to be sheared'and the spring D to'be compressed. As soon as the cup D, with the remaining part of the pin D or with its end, strikes the striker C, the pin C is sheared, which renders the striker C independent of the fuse body A.
  • the new fuse presents the advantage of cutting out the use of a containerfor the whole of the striker and percussion cap by substituting for this container a light impact transmitting member D.
  • the impact transmitting memher will in this case be formed by the rod E of the suspension hook;
  • any outward movement of the hook will be rendered impossible, for example-by a small screw-threaded sleeve F screwed into the fuse body A ,-while normally any inward movement such as results from impact against an obstacle, will be prevented by a washer E held by its rim between the sleeve F and a nutE screwed on to the rod E.
  • an additional safety device which will only be displaced the moment the bomb is dropped may, in the known manner consist of a collar G interposed between a project ing base 0 formed on the suspension hook and the front edge or face of thefuse body A this collar, which is made of two parts, being adapted to open for its ejection or its retention on the aircraft, either under the action of the fall of the projectile, or under, the action of a pull exerted by hand or me chanically'on the collar itself, As shown in Figure 4:, if the bomb, ejected after the disengagement of the safety'collar G, falls on to an obstacle offering a medium or'smallamount of resistance, the washer E is sheared, which enables the suspension hook and its rod, the movement of which is retardedby the shock, topenetrate into the fuse body and to strike the rod of-the striker C, thus producingthe release of the latter,
  • the front element of the mechanism which consists preferably of the striker C, is lodged in a cavity at the rear end of the rod E and is normally retained withdrawn in this cavity by a spring C lVhen an obstacle offering small or medium amount of resistance is encountered, the impact transmitting suspension member, after having sheared the retaining washer E strikes against the bottom of the lodgment a formed in thefuse body A From this moment, the said suspension member is carried along by the projectile, Whilst the independent striker compresses by its inertia, the spring C and projects out of its lodgment in the rod E, which permits the percussion cap B to strike it with a force which is a function, as in the preceding example, of m (V u) I
  • the suspension member which forms the impact transmitting member may, of course, comprise an extension which is in contact or nearly in contact with the rod of the striker, in such a manner as to render more rapid the she
  • a percussion fuse for a projectile comprising a fuse body, primer and striker elements arranged in front and rear positions in said body, the rearward one of said elements being immovably secured to said body, a resilient member intermediate said elements, means normally holding said front element from movement relative to said rearward element, said means being adapted to transmit the movement of said body to said front element, an impact transmitting member carried by said body, and means normally preventing movement of said impact member relative to said body, the impact of the projectile with an objective resulting in rendering said last named means ineffective and permitting movement of said impact member to render said first named means inoperative.
  • a fuse of thetype embodying a fuse body and primer and striker elements longitudinally disposed in substantial alinement in said body, the rearwardly positioned one of saidelements being fixedly secured to said body and the forwardly disposed one being adapted for sliding movement in the body, an impact transmitting member carried by said body, and means normally preventing movement of said impact member and the forwardly disposed one of said elements relative to said fuse body, the impact of the fuse with an obstacle acting to render said means inoperative and to produce engagement of said elements.
  • a bomb fuse of the type embodying a fuse body and primer and striker elements longitudinally disposed in substantial alinement in said body, means normally preventing relative movement between said elements, an impact transmitting member carrid by said body, means preventing movement of the impact member outwardly from the body, and frangible means for preventing movement of the impact member inwardly relative to the body, the impact of the bomb with an obstacle acting to render said first named means and the frangible means inoperative.
  • a bomb fuse of the type embodying a fuse body and'primer and striker elements longitudinally disposed in substantial alinement in said body, means normally preventing relative movement between said primer and striker elements, a suspension hook carried by said body, and frangible means normally preventing movement of the hook relative to the body, the impact of the hook with an obstacle acting to render said first named means and said frangible means inoperative and to permit relative movement between the primer and striker elements.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Fuses (AREA)
US143260A 1925-12-17 1926-10-21 Percussion fuse for projectiles, aerial bombs, and the like Expired - Lifetime US1650300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1650300X 1925-12-17

Publications (1)

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US1650300A true US1650300A (en) 1927-11-22

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Family Applications (1)

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US143260A Expired - Lifetime US1650300A (en) 1925-12-17 1926-10-21 Percussion fuse for projectiles, aerial bombs, and the like

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US (1) US1650300A (de)
DE (1) DE480272C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495550A (en) * 1944-05-26 1950-01-24 Tech Studien Ag Operating gas heater for thermal power plants
US3351018A (en) * 1964-03-26 1967-11-07 Diehl Percussion fuze

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR840035A (fr) * 1937-12-20 1939-04-18 Fusée percutante extra-sensible pour projectiles divers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495550A (en) * 1944-05-26 1950-01-24 Tech Studien Ag Operating gas heater for thermal power plants
US3351018A (en) * 1964-03-26 1967-11-07 Diehl Percussion fuze

Also Published As

Publication number Publication date
DE480272C (de) 1929-08-02

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