US2130720A - Centrifugal fuse - Google Patents

Centrifugal fuse Download PDF

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Publication number
US2130720A
US2130720A US57992A US5799236A US2130720A US 2130720 A US2130720 A US 2130720A US 57992 A US57992 A US 57992A US 5799236 A US5799236 A US 5799236A US 2130720 A US2130720 A US 2130720A
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US
United States
Prior art keywords
centrifugal
jaws
ignition pin
jaw
pin
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
US57992A
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English (en)
Inventor
Junghans Helmut
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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 US2130720A publication Critical patent/US2130720A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the centrifugal jaws are locked in the rest position owing to the fact that the ignition pin holds them together by means of a locking arrangement.
  • the locking arrangement consists of a projection arranged von the ignition pin
  • the surface of the ignition pin recess whichvlies opposite the projections is provided with an inclination.
  • resilient means may be arranged on the centrifugal jaws so that the latter must over- 25 come anrincrease resistance in their movement in the outward direction.
  • Figure l is a longitudinal section of the detonator with the parts in the safety position
  • Figure 2 is a plan view of the detonator parts according to Figure 1, the cap being removed,
  • Figure 3 is a longitudinal section of the det- B5 onator according to Figure l, the ignition pin lying in the position ready for operation, and
  • Figure 4 is a plan View of the detonator parts according to Figure 3.
  • theignition pin c adapted to slide in the axial direction.
  • Two Ycentrifugal jaws d and e are arranged in a recess in the base and are adapted to carry out pivotal movements about pins f. While in lthe inoperi5 ative position, these centrifugal jaws lieV under a collar C1 on the ignition pin and thus ensure it against axial movement in the direction of the primer (not shown).
  • a recess is produced byan annular i0 flange c2 having a cam surface c3 in which the centrifugal jaws d ande engage.
  • On the upper VVsides of the centrifugaljaws are situated seg- -inents diV and e1 engaging behind the flange of the ignition pin, so that the centrifugal jaws 55 are prevented from swinging out.
  • the collar of the ignition pin therefore carries out a double function: flrst, by the placing of the centrifugal 1 jaws under this collar the ignition pin is prevented from moving into the ring position, and thereupon the collar holds together the centrif- 5 ugal jaws by its special construction according to the invention, so thatthey are locked in the inoperative position of the parts by the weight of the ignition pin.
  • a helical spring s may l be provided for. this purpose, which is mounted about the ignition pin or collar ci.
  • centrifugal jaws with respect to one another is such that although the jaws both press against the inner edge of the 1 recess of the ignition pin under the action of centrifugal force, onlyone of the centrifugal jaws d can rock out wheny the ignition pin is lifted,
  • the safety device according to the invention operates in the following manner:
  • the ignition pin a presses with its annular flange ci ⁇ against the groove of the centrifugal jaws d and e under the force of inertia acting during the drive, and holds them together until the acceleration of the projectile 40 upon leaving the barrel ceases.
  • the pressure of the ignition pin is overcome by the centrifugal force which has meanwhile been set up, the centrifugal jaws lifting the ignition pin'until the pro- 45 jections d1, el are released. by pressing against the inclined surface of the ignition pin recess.
  • centrifugal jaw d At rst only the centrifugal jaw d can move outwards, the centrifugal jaw e being locked by the lug en in its movement until the jaw d has completely'traversed its path. Not until then does the centrifugal jaw e swing outwards, whereby the ignition pin is released for the sensitive percussion action.
  • a direct impact percussion fuse according to claim 1, in which a base is provided in which the centrifugal Jaws are pivotally mounted, and in which a spring is provided in the base for each jaw to force said jaws inwardly around their pivot pins.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Gripping On Spindles (AREA)
US57992A 1935-01-18 1936-01-07 Centrifugal fuse Expired - Lifetime US2130720A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE188362X 1935-01-18

Publications (1)

Publication Number Publication Date
US2130720A true US2130720A (en) 1938-09-20

Family

ID=5720835

Family Applications (1)

Application Number Title Priority Date Filing Date
US57992A Expired - Lifetime US2130720A (en) 1935-01-18 1936-01-07 Centrifugal fuse

Country Status (5)

Country Link
US (1) US2130720A (enrdf_load_stackoverflow)
CH (1) CH188362A (enrdf_load_stackoverflow)
FR (1) FR798334A (enrdf_load_stackoverflow)
GB (1) GB448760A (enrdf_load_stackoverflow)
NL (1) NL42013C (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554586A (en) * 1943-09-11 1951-05-29 Robert D Miller Detent
US2586437A (en) * 1943-11-13 1952-02-19 Us Navy Powder train interrupter
US2712791A (en) * 1942-07-09 1955-07-12 Bieakney Robert Max Switch
US2741185A (en) * 1950-07-10 1956-04-10 Mefina Sa Locking mechanism for a clockwork movement of a mechanical time fuse for a projectile
US2826146A (en) * 1943-12-15 1958-03-11 Henry H Porter Safety device for contact fuzes
US2869464A (en) * 1954-10-11 1959-01-20 Northrop Aircraft Inc Friction type fuse device
US2925777A (en) * 1947-01-10 1960-02-23 William D Crozier Ampule breaker mechanism
USB403140I5 (enrdf_load_stackoverflow) * 1973-10-03 1975-01-28
US4534292A (en) * 1982-12-24 1985-08-13 Diehl Gmbh & Co. Self-destruct device for spin-stabilized projectile detonators

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419981A (en) * 1942-06-09 1947-05-06 Leo F Young Fuse

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712791A (en) * 1942-07-09 1955-07-12 Bieakney Robert Max Switch
US2554586A (en) * 1943-09-11 1951-05-29 Robert D Miller Detent
US2586437A (en) * 1943-11-13 1952-02-19 Us Navy Powder train interrupter
US2826146A (en) * 1943-12-15 1958-03-11 Henry H Porter Safety device for contact fuzes
US2925777A (en) * 1947-01-10 1960-02-23 William D Crozier Ampule breaker mechanism
US2741185A (en) * 1950-07-10 1956-04-10 Mefina Sa Locking mechanism for a clockwork movement of a mechanical time fuse for a projectile
US2869464A (en) * 1954-10-11 1959-01-20 Northrop Aircraft Inc Friction type fuse device
USB403140I5 (enrdf_load_stackoverflow) * 1973-10-03 1975-01-28
US3913486A (en) * 1973-10-03 1975-10-21 Us Army Automatic delay graze sensitive fuze
US4534292A (en) * 1982-12-24 1985-08-13 Diehl Gmbh & Co. Self-destruct device for spin-stabilized projectile detonators

Also Published As

Publication number Publication date
GB448760A (en) 1936-06-15
FR798334A (fr) 1936-05-14
NL42013C (enrdf_load_stackoverflow)
CH188362A (de) 1936-12-31

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