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US1711693A - Electric fuse for projectiles - Google Patents

Electric fuse for projectiles Download PDF

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Publication number
US1711693A
US1711693A US244932A US24493228A US1711693A US 1711693 A US1711693 A US 1711693A US 244932 A US244932 A US 244932A US 24493228 A US24493228 A US 24493228A US 1711693 A US1711693 A US 1711693A
Authority
US
United States
Prior art keywords
condensers
fuse
composition
current
condenser
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
US244932A
Other languages
English (en)
Inventor
Ruhlemann Herbert
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.)
Rheinische Metallwaaren and Maschinenfabrik AG
Original Assignee
Rheinische Metallwaaren and Maschinenfabrik AG
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
Priority claimed from DER69907D external-priority patent/DE486942C/de
Application filed by Rheinische Metallwaaren and Maschinenfabrik AG filed Critical Rheinische Metallwaaren and Maschinenfabrik AG
Application granted granted Critical
Publication of US1711693A publication Critical patent/US1711693A/en
Priority claimed from DER78325D external-priority patent/DE492862C/de
Priority claimed from DER78400D external-priority patent/DE502303C/de
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
    • 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
    • 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
    • F42C11/04—Electric fuzes with current induction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C17/00—Fuze-setting apparatus
    • F42C17/04—Fuze-setting apparatus for electric fuzes

Definitions

  • the invention relates to an electric fuse intended for projectiles and in which the discharging energy of an electric condenser is used to ignite thecomposition.
  • the inven- 6 tion has for its object to make the fuse safe in the gun barrel by means of a special connection ofthe condenser, all mechanical safety appliances being obviated.
  • the fuse com- 10 prises two condensers, the equally-loaded Q coatings being connected with each other and two thereof to the composition, which condensers are loaded up from a source of ourrent to equal voltage, one of them discharg- 16 ing, after the projectile has been fired,
  • the composition may be heated up to the degree of heat required for the ignition either by means of a heating wire embedded therein and through which the current flows, or by the spark of a spark gap formed between two poles, arranged at a distance apart from one another, of the conduit leading to the condensers.
  • a permanent magnet arranged in known manner in the fuse may serve as source of current, which magnet, according to the fuse is a time fuse or impact fuse, generates an induction current, in a coil connected with the condensers, by its movement relatively to this coil provoked due to the shot is being fired or the target being hit.
  • the condensers may also be loaded by a source of power arranged separately from the projectile, which measure may also be adopted with all condenser fuses, of other design and affords a very simple electric fuse that occupies but little space.
  • Figure 1 is a diagrammatic view showing the electric connections of a fuse, the source of current is formed by a permanent magnet, Figure-2 indicates the curves of voltage and time,
  • Figure 3 is a view of a fuse the condenser the shot being fired 244,932, and in Germany January 14, 1927.
  • the permanent magnet a is ada ted to be shifted in the longitudinal axis 0 the projectile in the coil 6.
  • the one end of coil 12 is connected 'to the conduit e that interconnects one coating of each of the two condensers c and d.
  • the two coatings of the condenser d are further connected through a high ohm-resistance
  • the magnet a When the projectile is fired,-the magnet a is forwarded through the coil 6 due to the inertia of its mass and generates an induction current in the coil, by which current the two condensers c and d are loaded with equal voltage.
  • magnet on opens the contact f and g whereby the loaded condensers are disconnected from coil 6
  • the condensers c and d are loaded in parallel to one another, no difference of potential exists at the points 70 and Zimmediately after the load.
  • the composition m may also be ignited by means of a spark gap formed in the conduit 0.
  • the conduit 0 including the composition m is interrupted.
  • a spark can be produced in the composition after the contacter p, 1;, has been closed, only after a determined potential difierence has arisen between .the points Jo and Z after the discharge ofcondenser d through the resistance q.
  • the resistance 9 through which the con,- d'enser d is discharged may further be designed so as to be regulated. In this manner the discharge time of condenser d is made adjustable and a barrel-safe fuse is obtained, as thus the voltage required to ignite the composition arises after a shorter or longer lapse of time according to the amount of resistance,-
  • a spark gap is advantage'ouslyar ranged in this case-in the composition m in the conduit 0 leading to the condensers.
  • the impact contacter p, 1), arranged in conduit 0 is then dispensed with, but the wiring in o l is closed from-the first, except said spark gap.
  • the impact fuse the wiring diagram of which is illustrated in Figure 3, is loaded from a source of current arranged separately from the projectile, the other electric equipment and mode of operation of the fuse corresponding to that of the first embodiment.
  • a separate generator or a cell may serve as source of current.
  • conduit 0 that immediately connects one coating ofeach-of the two condensers c and d, is connected to the minus pole, and the: wires h and 2' leading to the other coatings of the condensers are connected to the plus pole of the source of current.
  • loading of the condensers may take place upon the projectile being introduced in the gun barrel. or, with a suitable connection of said contact pieces with the trigger mechanism. only when the projectile is fired.
  • a switch is arranged in the conduit connecting the condenser d of the fuse through the resistance g, which switch connects the condenser automatically only upon the shot being fired, in order to obviate that the condenser d, eventually loaded before theshot, already discharges likewise before the shot.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Elimination Of Static Electricity (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Direct Current Feeding And Distribution (AREA)
  • Toys (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Fuses (AREA)
US244932A 1927-01-14 1928-01-06 Electric fuse for projectiles Expired - Lifetime US1711693A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DER69907D DE486942C (de) 1926-06-26 1927-01-14 Elektrischer Zuender
DER78325D DE492862C (de) 1929-06-06 1929-06-06 Ladevorrichtung fuer elektrische Zuender
DER78400D DE502303C (de) 1926-06-26 1929-06-14 Elektrischer Geschosszuender

Publications (1)

Publication Number Publication Date
US1711693A true US1711693A (en) 1929-05-07

Family

ID=31950195

Family Applications (3)

Application Number Title Priority Date Filing Date
US244932A Expired - Lifetime US1711693A (en) 1927-01-14 1928-01-06 Electric fuse for projectiles
US414498A Expired - Lifetime US1776796A (en) 1927-01-14 1929-12-16 Electrical projectile igniter
US414496A Expired - Lifetime US1795972A (en) 1927-01-14 1929-12-16 Charging device for electrical fuses

Family Applications After (2)

Application Number Title Priority Date Filing Date
US414498A Expired - Lifetime US1776796A (en) 1927-01-14 1929-12-16 Electrical projectile igniter
US414496A Expired - Lifetime US1795972A (en) 1927-01-14 1929-12-16 Charging device for electrical fuses

Country Status (7)

Country Link
US (3) US1711693A (fr)
BE (1) BE347829A (fr)
CH (2) CH130926A (fr)
ES (1) ES116456A1 (fr)
FR (2) FR646614A (fr)
GB (3) GB283585A (fr)
NL (1) NL27635C (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485887A (en) * 1944-04-06 1949-10-25 Us Navy Projectile
US2514434A (en) * 1941-07-24 1950-07-11 Stephen L Windes Electrical detonator
US2809586A (en) * 1943-10-07 1957-10-15 Richard B Roberts Safety delay circuit
US2892412A (en) * 1953-01-08 1959-06-30 Elwood H Mullins Generating device
US2972946A (en) * 1950-07-07 1961-02-28 Thomas C Poulter Bomb cluster
US2981190A (en) * 1953-09-24 1961-04-25 Albert S Will Bomb fuze
US2991716A (en) * 1956-08-14 1961-07-11 Dorman D Israel Electrically operated fuze
US3035520A (en) * 1955-01-24 1962-05-22 Robert E Koeppen Inertia actuated electric unit
US3732823A (en) * 1967-07-06 1973-05-15 Bolkow Gmbh Electrical igniter or fuse
EP1925320A2 (fr) 1998-03-27 2008-05-28 Prolume, Ltd. Luciférases, protéines fluorescentes, acides nucléiques codant pour les luciférases et protéines fluorescentes et leur utilisation pour le diagnostic, le criblage à haut rendement et articles nouveaux

Families Citing this family (14)

* 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
US2465351A (en) * 1943-03-26 1949-03-29 Standard Telephones Cables Ltd Projectile timing
US2545474A (en) * 1943-08-12 1951-03-20 Jerome J Kurland Delayed detonating means for projectiles
US2900909A (en) * 1943-08-20 1959-08-25 James D Jordan Centrifugal switch
US2685008A (en) * 1943-09-15 1954-07-27 Us Navy Centrifugal force operated switch
US2455620A (en) * 1944-09-12 1948-12-07 Jules H Sreb Centrifugal switch
US2710578A (en) * 1944-12-30 1955-06-14 Rabinow Jacob Arming device
US2728296A (en) * 1945-02-27 1955-12-27 Leo T Meister Instantaneous detonator for hollow charge projectiles
US2506587A (en) * 1947-07-15 1950-05-09 Frank C Gibson Vibrator type multiple-shot blasting unit
US3417354A (en) * 1947-07-23 1968-12-17 Army Usa Magnetic circuit closer
US2696103A (en) * 1951-07-24 1954-12-07 Laurence B Heilprin Photoflash indicator of air-burst fuse function
US2919627A (en) * 1953-05-05 1960-01-05 Mcculloch Motors Corp Projectile ignition device
US3181466A (en) * 1957-02-04 1965-05-04 Czajkowski Norman Spin compensating switch for a projectile fuze
DE3002824C2 (de) * 1980-01-26 1983-09-22 Fr. Sobbe Gmbh, 4600 Dortmund Elektrischer Zünder für Pioniersprengmittel

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514434A (en) * 1941-07-24 1950-07-11 Stephen L Windes Electrical detonator
US2809586A (en) * 1943-10-07 1957-10-15 Richard B Roberts Safety delay circuit
US2485887A (en) * 1944-04-06 1949-10-25 Us Navy Projectile
US2972946A (en) * 1950-07-07 1961-02-28 Thomas C Poulter Bomb cluster
US2892412A (en) * 1953-01-08 1959-06-30 Elwood H Mullins Generating device
US2981190A (en) * 1953-09-24 1961-04-25 Albert S Will Bomb fuze
US3035520A (en) * 1955-01-24 1962-05-22 Robert E Koeppen Inertia actuated electric unit
US2991716A (en) * 1956-08-14 1961-07-11 Dorman D Israel Electrically operated fuze
US3732823A (en) * 1967-07-06 1973-05-15 Bolkow Gmbh Electrical igniter or fuse
EP1925320A2 (fr) 1998-03-27 2008-05-28 Prolume, Ltd. Luciférases, protéines fluorescentes, acides nucléiques codant pour les luciférases et protéines fluorescentes et leur utilisation pour le diagnostic, le criblage à haut rendement et articles nouveaux

Also Published As

Publication number Publication date
GB340764A (en) 1931-01-08
NL27635C (fr)
US1776796A (en) 1930-09-30
CH130926A (de) 1929-01-15
ES116456A1 (es) 1930-02-16
FR646614A (fr) 1928-11-14
US1795972A (en) 1931-03-10
BE347829A (fr)
CH145628A (de) 1931-02-28
FR37770E (fr) 1931-01-17
GB341664A (en) 1931-01-22
GB283585A (en) 1928-08-30

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