US1523073A - Mechanical time fuse - Google Patents

Mechanical time fuse Download PDF

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Publication number
US1523073A
US1523073A US699030A US69903024A US1523073A US 1523073 A US1523073 A US 1523073A US 699030 A US699030 A US 699030A US 69903024 A US69903024 A US 69903024A US 1523073 A US1523073 A US 1523073A
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US
United States
Prior art keywords
fuse
disk
channel
barrier
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
US699030A
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English (en)
Inventor
Junghans Oskar
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.)
ANONIMA ARTURO JUNGHANS Soc
Original Assignee
ANONIMA ARTURO JUNGHANS SOC
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 to CH106801D priority Critical patent/CH106801A/de
Application filed by ANONIMA ARTURO JUNGHANS SOC filed Critical ANONIMA ARTURO JUNGHANS SOC
Priority to US699030A priority patent/US1523073A/en
Application granted granted Critical
Publication of US1523073A publication Critical patent/US1523073A/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
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • F42C15/188—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved using a rotatable carrier
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/041—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin

Definitions

  • My invention relates to a mechanical timefuse provided with a percussion fuse and which is commonly called a compound fuse, and the object of my invention is to provide a safety device in connection with said fuse for the purpose of preventing the charge of the projectile from being prematurely ignited while the latter is still withinfthe gun or ordnance or during its early flight through the air.
  • Safety-devices are, generally speaking, known 1n fuses of this kind.
  • the invention provides a specifically new means for the purpose which is of very reliable action; the said means comprising a barrier disk inserted between the carrier or support of the fulminating cap or primer and the igniting charge and adapted to turn about a pivot.
  • I rovide in the said disk a transmitting member such as an explosive pellet which' normally lies in asafe position, but, upon firing, moves together with the disk when the latter swings or turns under the centrifugal 'action exerted upon it during the iight of the projectile, so as to assume a position in line kwith the open igniting charge and in communication with the fulminating cap, so that the charge cannot ignite except when the disk has turned upon lirin owing to centrifugal action during the ight of the projectile through the air.
  • a transmitting member such as an explosive pellet which' normally lies in asafe position, but, upon firing, moves together with the disk when the latter swings or turns under the centrifugal 'action exerted upon it during the iight of the projectile, so as to assume a position in line kwith the open igniting charge and in communication with the fulminating cap, so that the charge cannot ignite except when the disk has turned upon lirin owing to centrifug
  • Figure 1 is a vertical axial section of the compound fuse with the top-cap removed
  • Figure 2 is a section taken on the line 2-2 of Figure 1 and Figure 3 is a section taken 'on the line 3 3 of Figure 2.
  • the fuse illustrated in the several figures combines a mechanical time fuse having a clockwork and a percussion fuse having an impact rod or pinv projectin into the open air from the top-cap, not s own.
  • a compound fuse of the kind is commonly known, detail description thereof is not deemed necessary.
  • a recess a is provided for the recep tion of a centrifugal barrier'constituted by a disk b mounted on a pivot c fixed in the top plate l of the'igniting charge container n,
  • the disk b is'provided with a bore or hole 1n which the transmitting member, such as a charge or pellet Z of readily ignitable nature (picric acid or the like) is embedded.
  • the transmitting member such as a charge or pellet Z of readily ignitable nature (picric acid or the like) is embedded.
  • The'disk l) is mounted intermediate between the two parts containing the fulminating cap e and the igniting charge f, respectively; that is to say between the top plate l of the container n and the main body of the fuseinwhich the cap e is located, from which, as usual in fuses of the kind, adetonating or tiring duct or channel (not shown) in said main body leads to a polnt in vertical alinement with a hole Z1 in the top plate Z of the? container n.
  • the disk b has a position of rest in which the-hole or the transmitting charge or pellet 'd therein is displaced with relation to the hole Z1 in the top-plate l of the container a and the mouth of the said channel of the main body.
  • the mouth of the firing channel is indicated by the.. letter e1 and the disk b is shown in this figure in its normal or safe position (full lines) (dotted lines). It will be seen that in the former position the cap e, inclusive of the tiring c annel, and the igniting charge f are separated from each other through the disk 7) since the hole or the pellet d therein is out of line.
  • the disk b is secured in the said normal or safe position by means of a pin g engaging in a recess in the disk and maintained 1n engagement .by means of a .so-called centrifugal lever h against the action of asprin z' coiled about the pin g.
  • the rovision 0I a securing means of this type is in itself old and needs no detailed description.
  • the lever h is controlled by a spur gear j of the clockwork so as to not be released and free to swing out of engagement with the pin g through' centrifugal actlon except after the and in its ready position.
  • clockwork hasbeen actuated for a predetermined eriod of time, as will be readily understood by those'skilled in the art.
  • the hole or the pellet d inthe disk is, in the latter position, in line with the opening Z1 of the igniting charge covering plate Zland with the'mouth e1 of the firing channel leading tothe fulminatf ing cap e.
  • the firing pin k In fuses of this klnd, the firing pin k usually is provided withV a safety device or detent of its own ',which is released at a proper time in a known manner.
  • a fuse for shells the combination of a fuse body having a firing channel.; an ig- ⁇ niting charge container attached to the fuse body and having an opening at its top in line with the firing channel; firing mechanism; a pivotally-mounted barrier interposed between the container top vand the channel mouth and provided with a hole, said barrier tending to assume auto.- matically, under thel action of force when the shell is in iii ht, a osition in which its hole directly ahnes with said :ontainer opening and channel mouth; a
  • centrifugal detent normally engaging said barrier to y hold it out of such osition; and clockwork normally holding said detent'in such engagement but releasing it automatically after a predetermined interval of flight.
  • a fuse for shells the-combination of a fuse body having a ring' channel; an igniting charge container attached to the fuse body and having an opening at its top in line with the firing channel; firing mechanism; a pivotally-mounted barrier interposed between the container top and the channel mouth and provided with a hole, said barrier tending to assume automatically, under the action of 'centrifugal force when the shell is in flight, a position in which its holedirectly alines with said'container opening and channel mouth; a.v
  • a fuse for shells the combination of a. fuse .body having a firing channel; an ig- .ni-ting charge container attached to the fuse' body and having an opening atl its top in line with the firing channel; firing mechanism; a 'pivotally-mounted barrier interposed between the container top and the channel mouth* and provided with a hole, said barrier tending to assume automatically, under the action of centrifugal force when the shell is in flight, a position in which its holedirectly' alines with said container opening 'and channel mouth; a spring-loaded pin having its inner end normally engaged ina recess in ⁇ the barrier to hold the latter out' of such position; and clockwork including a member normally vengaging the outer end of the pin to maintain the engagement of its first-named end in said recess but withdrawn automatically 'from engagement with said pin after a predetermined period of .operation of the clockwork shell.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Air Bags (AREA)
US699030A 1924-03-13 1924-03-13 Mechanical time fuse Expired - Lifetime US1523073A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH106801D CH106801A (de) 1924-03-13 1923-12-21 Mechanischer Zeitzünder.
US699030A US1523073A (en) 1924-03-13 1924-03-13 Mechanical time fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US699030A US1523073A (en) 1924-03-13 1924-03-13 Mechanical time fuse

Publications (1)

Publication Number Publication Date
US1523073A true US1523073A (en) 1925-01-13

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ID=24807646

Family Applications (1)

Application Number Title Priority Date Filing Date
US699030A Expired - Lifetime US1523073A (en) 1924-03-13 1924-03-13 Mechanical time fuse

Country Status (2)

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US (1) US1523073A (de)
CH (1) CH106801A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528823A (en) * 1944-07-03 1950-11-07 Fink Jean Mechanical time fuse
US2541082A (en) * 1945-04-21 1951-02-13 James F Mccaslin Delay arming device for projectile fuses
US2737890A (en) * 1942-11-09 1956-03-13 Robert B Brode Safety unit for explosive devices
US2825284A (en) * 1954-11-05 1958-03-04 Mefina Sa Impact fuzes with mechanical retardation
US2967483A (en) * 1955-01-31 1961-01-10 Junghans Helmut Shell fuze
US3078802A (en) * 1960-05-16 1963-02-26 Graviner Manufacturing Co Missile fuzes
US3978798A (en) * 1973-11-09 1976-09-07 Kaj Backstrom Fuze mechanism having integrated safety functions

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737890A (en) * 1942-11-09 1956-03-13 Robert B Brode Safety unit for explosive devices
US2528823A (en) * 1944-07-03 1950-11-07 Fink Jean Mechanical time fuse
US2541082A (en) * 1945-04-21 1951-02-13 James F Mccaslin Delay arming device for projectile fuses
US2825284A (en) * 1954-11-05 1958-03-04 Mefina Sa Impact fuzes with mechanical retardation
US2967483A (en) * 1955-01-31 1961-01-10 Junghans Helmut Shell fuze
US3078802A (en) * 1960-05-16 1963-02-26 Graviner Manufacturing Co Missile fuzes
US3978798A (en) * 1973-11-09 1976-09-07 Kaj Backstrom Fuze mechanism having integrated safety functions

Also Published As

Publication number Publication date
CH106801A (de) 1924-09-16

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