US3106160A - Electrical projectile priming device - Google Patents

Electrical projectile priming device Download PDF

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Publication number
US3106160A
US3106160A US67068A US6706860A US3106160A US 3106160 A US3106160 A US 3106160A US 67068 A US67068 A US 67068A US 6706860 A US6706860 A US 6706860A US 3106160 A US3106160 A US 3106160A
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United States
Prior art keywords
capacitor
projectile
priming
circuit
charge
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
US67068A
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English (en)
Inventor
Harnau Hans-Dieter
Renner Hermann
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.)
Rheinmetall Industrie AG
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Rheinmetall GmbH
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 Rheinmetall GmbH filed Critical Rheinmetall GmbH
Application granted granted Critical
Publication of US3106160A publication Critical patent/US3106160A/en
Anticipated expiration legal-status Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C11/00—Electric fuzes
    • F42C11/06—Electric fuzes with time delay by electric circuitry
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/06—Electric contact parts specially adapted for use with electric fuzes

Definitions

  • This invention relates to an electrical projectile priming device for several successive priming operations, in particular for projectiles with separate priming of their pro pellant section and their operative section.
  • the device of the invention is distinguished from hitherto known electrical projectile priming devices mainly by an impulse generator, preferably incorporated in the firing weapon, and by a firing circuit of special design, located in the projectile and coupled to the impulse generator, for the triggering of the two half-waves which are being inductively generated in the coupling coil of the firing circuit of the projectile upon actuation of the impulse generator.
  • the projectile priming device proposed by the present invention offers the advantage of a very high degree of safety in transit and safety against premature actuation shortly in front of the bore of the weapon.
  • the priming device comprises two section, i.e. the section I incorporated in the weapon and the firing circult lI located in the projectile. In this way, absolute safety in transit is achieved.
  • the section I incorporated in the weapon comprises an impulse generator 1 to which are connected a capacitor 2 and a coupling coil 3 via a rectifier 22.
  • he firing circuit It comprises a coupling coil 4. Both sections I and II are inductively coupled to one another after loading, by means of the coupling coils 3 and 4.
  • the coupling coil 3, together with the capacitor 2 forms a parallel resonant circuit coupled to the output of impulse generator 1.
  • This resonant circuit is tuned to the characteristic frequency of the generator for the purpose of an improved transmission of energy.
  • a pulse is transmitted to the coupling coil 3 whereby an oscillation with a positive and a negative half-wave is induced in the coupling coil 4.
  • these two hallfovaves are utilized for two successive priming operations.
  • the first positive half-wave charges the pre-storage condenser 6 by way of the rectifier 5.
  • the second negative half wave ignites the propellant section of the projectile by way of the rectifier 7 and the primer 8.
  • the acceleration switch 9 closes the resonant circuit comprising the condensers 6, 1d and the inductance 11 which leads to an oscillating discharge of the condenser 6, said discharge being already interrupted, however, after a quarter cycle by means of the rectifier 12, so that the intermediate storage condenser 10 retain-s nite .1' States atent ice 2 maximum charge potential.
  • the inductance 11 and the rectifier 12 transfer intensifier
  • almost the entire energy is transferred from the condenser 6 to the condenser Ill, with the exception of small losses in the inductance 11, and only a very short-duration contact in the acceleration switch 9 is required to effect this transfer, since the resonant circuit may be tuned for high-frequency operation.
  • the upper limit of the frequency is defined by the switching capacity of the rectifier .12. It is chosen in such a way, however, that upon closing of the switch 9 the pre-storage circuit 4-, 6 which is tuned to the frequency of the initial resonant circuit 2, 3, is being de-tuned such that the priming capacitor 14 can under no circumstances receive a potential sulficiently high to effect priming.
  • the condenser 10 discharges with delay into the condenser 14 via the resistance 13.
  • the primer 15 will only have been prepared when the condenser 14 has attained its (full priming potential.
  • a rectifier 18 which only passes current through the primer 15 when the condenser 14 begins to act as a potential source (ignition by impacting on target). The device is safeguarded against any faults which may occur in the following way:
  • the condenser 6 is short circuited via the two nose halves 16, 17 and the rectifier 2t In this case the projectile leaves the barrel as a dud.
  • the timing operation can only be triggered by the inductive transmission of a potential impulse originating in the impulse generator 1, which is located in the weapon, the transport safety of the projectile is guaranteed in any case.
  • every priming device Prior to being assembled in the projectile, every priming device can be accurately tested for functioning in a simple manner, since the circuit points required for testing have been made accessible from without to enable the operational elements (contact hoods and primer connections) to be connected.
  • the second half-wave (connections made at -8) prompts a short mechanical impact which actuates the acceleration switch 9.
  • the behaviour of the primers in the case of premature contacting of the hoods may for example be ascertained by means of a timed switch, not shown in the drawing, which is connectedto the leads of the contacting hoods 16, 17.
  • An electrical priming device for a projectile having a propellant section connected to an operative section comprising means for receiving a signal having an alternating waveform, a signal storage and transfer circuit and a firing circuit for theoperative section, said storage and transfer circuit including a first capacitor and means for transferring charge from the first capacitor to said firing circuit, a priming device for said propellant section, means for routing the positive half-wave of said signal to charge said first capacitor, and means for routing the negative half-wave of said signal to actuate said propellant section priming device.
  • An electrical priming device for a projectile in which the operative section storage and transfer circuit includes a second capacitor and acceleration responsive means for connecting said first and second capacitors for transfer of charge from the first capacitor to said second capacitor.
  • An electrical projectile priming device in which the operative section storage and trans fer circuit includes a third capacitor and a resistor, said third capacitor and said resistor being connected in series across the second capacitor.
  • said firing circuit includes a priming means and an impact contactor, first and second contacts for said contactor closable in response to an impact, said contactor and priming means connected to said storage and transfer circuit for the receipt of an actuating signal therefrom upon closure of said first and second contacts.
  • a firing device including an impulse generator and an input oscillator circuit coupled to said impulse generator, said generator and oscillator circuit being located in said operative section.
  • An electrical priming device for a projectile having a propellant section and an operative section said device including means for receiving a signal having an alternating waveform, an electrical charge storage and transfer circuit and a firing circuit for said operative section, said charge storage and transfer circuit having first, second and third charge storage means, acceleration responsive means for transferring charge from said first to said second charge storage means, said second and third charge storage means being connected via charge transfer delay means, said firing circuit including a priming means connected in series with an impact contactor, first and second contacts for said contactor closable in response to an impact, said series connected contactor and priming means connected to said third charge storage means for discharging said discharge storage means to actuate said firing device upon closure of said first and second contacts, and means for routing the positive half-cycle of the received signal to charge said first charge storage means, a propellant section priming means and means for routing the negative half-cycle of the received signal to actuate said propellant section priming means.
  • An electrical projectile priming device including first means connected between said impact contactor and said first'charge storage means to permit discharge thereof upon closure of said first and second contacts prior to operation of said acceleration responsive means, and second means connected between said impact contactor and second storage means and providing a discharge path there-for upon closure of said first and second contacts.
  • An electrical priming device for a projectile having a propellant section coupled to an operative section including a coil for receiving a signal having an alternating waveform, :an electrical charge storage and transfer circuit and a fining circuit for said operative section, said charge storage and transfer circuit including first, second and third capacitors, acceleration responsive means for connecting said first and second capacitors to permit transfer of charge from said first capacitor to said second capacitor, a delay resistor connected in series with said third capacitor, said series connected delay resistor and third capacitor connected across the second capacitor, said firing circuit including a primer, a rectifier and an impact contactor having first and second contacts, said primer being connected in series with said first and second contacts and with said rectifier, the third capacitor being connected to said rectifier, said rectifier being poled to permit discharge of said third capacitor through 7 said primer upon closure of said first and second contacts, said primer being actuable only if said third capacitor is charged above a predetermined level, a second primer connected in said propellant section, first and second routing rectifiers, said coil connected in series with" said first routing
  • An electrical projectile priming device including an acceleration responsive switch, an inductance and a rectifier all connected in series and between one side of said first capacitor and one side of said second capacitor, so that closure of said switch allows charge to be transferred from said first to said second capacitor.
  • An electrical projectile priming device including a resistor connected in parallel with said first capacitor, a first capacitor discharging rectifier connected in series with said first and second contacts across said first capacitor and poled to permit discharge of said first capacitor on closure of said first and second contacts prior to operation of said acceleration responsive means to transfer charge from said first to said second capacitor, 3. second capacitor discharge rectifier connected in series with said first and second contacts across said second capacitor and poled to permit discharge of said second capacitor on closure of said first and second contacts.
  • An electrical projectile priming apparatus comprising an impulse generator, a resonant circuit including a capacitor and an inductor connected in parallel, a rectifier, said impulse generator connected in series with the rectifier to said parallel resonant circuit to supply unidirectional impulses thereto, the resonant circuit forming an alternating signal having a frequency equal to the frequency of the impulse generator in response to a pulse from said generator, a receiving coil coupled to said parallel resonant circuit inductor, a second capacitor connected in parallel with said receiving coil to define a signal receiving parallel tuned circuit having a resonant frequency equal to that of the signal generating resonant circuit and an acceleration responsive switch coupled to said receiving coil, said resonant circuit comprising a first and a second charge storing capacitor and having a resonant frequency such that it is strongly detuned relative to the signal receiving tuned circuit upon closure 5 of said acceleration responsive switch, the combination funfiher including a rectifier connected in series between said first and said second charge storing capacitors whereby closure of said acceleration responsive

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US67068A 1959-11-06 1960-11-03 Electrical projectile priming device Expired - Lifetime US3106160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER26672A DE1116116B (de) 1959-11-06 1959-11-06 Elektrische Zuendeinrichtung fuer Geschosse

Publications (1)

Publication Number Publication Date
US3106160A true US3106160A (en) 1963-10-08

Family

ID=7402254

Family Applications (1)

Application Number Title Priority Date Filing Date
US67068A Expired - Lifetime US3106160A (en) 1959-11-06 1960-11-03 Electrical projectile priming device

Country Status (6)

Country Link
US (1) US3106160A (de)
BE (1) BE596613A (de)
CH (1) CH387495A (de)
DE (1) DE1116116B (de)
GB (1) GB961201A (de)
NL (2) NL125215C (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291260B (de) * 1965-09-03 1969-03-20 Rheinmetall Gmbh Notabfeuerung fuer Geschuetze
US3958510A (en) * 1973-04-05 1976-05-25 Diehl Arrangement for variably arming a projectile as it emerges from a weapon barrel
US4116133A (en) * 1975-11-25 1978-09-26 Mefina S.A. Electronic firing device for missiles
FR2545207A1 (fr) * 1974-06-25 1984-11-02 France Etat Armement Dispositif de programmation et de transfert d'energie pour systemes d'arme et projectile pour systemes d'armes munis d'un tel dispositif
USH1476H (en) * 1991-09-26 1995-09-05 The United States Of America As Represented By The Secretary Of The Army Circuitry for igniting detonators
US6105504A (en) * 1969-06-30 2000-08-22 The United States Of America As Represented By The Secretary Of The Navy Contact exploder
WO2000055570A1 (de) * 1999-03-17 2000-09-21 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Sicherungs- und verzögerungsschaltung für einen aufschlagzünder
US6598533B1 (en) * 1999-08-31 2003-07-29 Honeywell Ag Electronic time-fuse for a projectile
US6675715B1 (en) * 2000-02-02 2004-01-13 Honeywell Ag Electronic projectile fuse

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1288657A (fr) * 1961-05-08 1962-03-24 Armes De Guerre Fab Nat Interrupteur pour circuit électrique
DE3336534A1 (de) * 1983-10-07 1985-04-25 Diehl GmbH & Co, 8500 Nürnberg Elektronische zuendsteuerschaltung

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514359A (en) * 1945-12-28 1950-07-11 Malcolm G Allison Proximity fuse
US2737890A (en) * 1942-11-09 1956-03-13 Robert B Brode Safety unit for explosive devices
DE1056970B (de) * 1958-04-05 1959-05-06 Diehl Fa Elektrischer Zuender
US2900910A (en) * 1943-08-27 1959-08-25 William W Small Unshorter
US2903534A (en) * 1942-07-09 1959-09-08 Robert M Bleakney Switch
US2921981A (en) * 1954-04-26 1960-01-19 Rca Corp Simplified two-channel multiplex system
US2926610A (en) * 1951-08-01 1960-03-01 Ruehlemann Herbert Ernst Electric time fuze
US2998773A (en) * 1954-10-15 1961-09-05 Herbert E Ruehlemann Selectively variable timing fuze

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE530348C (de) * 1930-04-27 1931-07-28 Rheinische Metallw & Maschf Elektrischer Zuender
DE581491C (de) * 1931-04-11 1933-07-28 Rheinische Metallw & Maschf Elektrischer Zuender mit Mehrfachwirkung
FR864373A (fr) * 1939-09-18 1941-04-25 Materiel Telephonique Systèmes à constante de temps électriques utilisables notamment pour les détonateurs
US2459854A (en) * 1946-04-18 1949-01-25 Jr Willard E Swift Grenade projector
US2640417A (en) * 1946-12-18 1953-06-02 Us Sec War Ignition safety device for induction fired rockets
CH280530A (fr) * 1948-04-30 1952-01-31 Nat D Etudes Et De Rech Aerona Projectile destructeur d'objectif aérien.
LU32256A1 (de) * 1953-06-29

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903534A (en) * 1942-07-09 1959-09-08 Robert M Bleakney Switch
US2737890A (en) * 1942-11-09 1956-03-13 Robert B Brode Safety unit for explosive devices
US2900910A (en) * 1943-08-27 1959-08-25 William W Small Unshorter
US2514359A (en) * 1945-12-28 1950-07-11 Malcolm G Allison Proximity fuse
US2926610A (en) * 1951-08-01 1960-03-01 Ruehlemann Herbert Ernst Electric time fuze
US2921981A (en) * 1954-04-26 1960-01-19 Rca Corp Simplified two-channel multiplex system
US2998773A (en) * 1954-10-15 1961-09-05 Herbert E Ruehlemann Selectively variable timing fuze
DE1056970B (de) * 1958-04-05 1959-05-06 Diehl Fa Elektrischer Zuender

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1291260B (de) * 1965-09-03 1969-03-20 Rheinmetall Gmbh Notabfeuerung fuer Geschuetze
US6105504A (en) * 1969-06-30 2000-08-22 The United States Of America As Represented By The Secretary Of The Navy Contact exploder
US3958510A (en) * 1973-04-05 1976-05-25 Diehl Arrangement for variably arming a projectile as it emerges from a weapon barrel
FR2545207A1 (fr) * 1974-06-25 1984-11-02 France Etat Armement Dispositif de programmation et de transfert d'energie pour systemes d'arme et projectile pour systemes d'armes munis d'un tel dispositif
US4116133A (en) * 1975-11-25 1978-09-26 Mefina S.A. Electronic firing device for missiles
USH1476H (en) * 1991-09-26 1995-09-05 The United States Of America As Represented By The Secretary Of The Army Circuitry for igniting detonators
WO2000055570A1 (de) * 1999-03-17 2000-09-21 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Sicherungs- und verzögerungsschaltung für einen aufschlagzünder
US6598533B1 (en) * 1999-08-31 2003-07-29 Honeywell Ag Electronic time-fuse for a projectile
US6675715B1 (en) * 2000-02-02 2004-01-13 Honeywell Ag Electronic projectile fuse

Also Published As

Publication number Publication date
GB961201A (en) 1964-06-17
NL257675A (de)
BE596613A (fr) 1961-02-15
DE1116116B (de) 1961-10-26
NL125215C (de)
CH387495A (de) 1965-01-31

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