US1927746A - Mechanical time fuse - Google Patents

Mechanical time fuse Download PDF

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Publication number
US1927746A
US1927746A US554102A US55410231A US1927746A US 1927746 A US1927746 A US 1927746A US 554102 A US554102 A US 554102A US 55410231 A US55410231 A US 55410231A US 1927746 A US1927746 A US 1927746A
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US
United States
Prior art keywords
slide
fuse
shaft
cam
time
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
US554102A
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English (en)
Inventor
Junghans Helmut
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 FABRIC
ANONIMA ARTURO JUNGHANS FABRICA D'OROLOGERIA Soc
Original Assignee
ANONIMA ARTURO JUNGHANS FABRIC
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 ANONIMA ARTURO JUNGHANS FABRIC filed Critical ANONIMA ARTURO JUNGHANS FABRIC
Application granted granted Critical
Publication of US1927746A publication Critical patent/US1927746A/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
    • 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
    • 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
    • F42C15/184—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 slidable 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49579—Watch or clock making

Definitions

  • MECHANICAL TIME lFUSE Filed July 30.V 1951 2 Sheets-Sheet 1 Sept. 19, 1933 H. JUNGHANS MECHANICAL TIME FUSE Filed July 50, 1931 2 Sheets-Sheet 2 Patented sept. 19, 1933 1,927,746 MECHANICALTIME FUSE Helmut Junghans, Schramberg, Germany,
  • the present invention relates to mechanical time fuses and more particularly to the igniting or' detonating mechanism thereof.
  • the chief object of the present invention is to dispense with such springs, in order to thereby overcome certain disadvantages and objections concomitant with said springs. Accordingly, in my improved time fuse, ignition takes place merely by the action of centrifugal force and without the use of a spring-controlled striker, preferably a percussion cap or primer as usually provided in the fuse, being caused to strike upon a stationary detonating pin after the expiration of the time interval for which the fuse has been set.
  • the detonating cap is accommodated in a radially movable slide which is locked normally or while in condition of rest,
  • the unlocking and releasing of the slide by means of the flying-back or recoiling bolt and the setting disk is accomplished or initiated by a pawl mounted on a pivot so as to be capable of turning thereabout and adapted to catch into a recess or dwell provided in the slide, the said pawl being preferably connected with the flyingback or recoiling bolt by means of intermediate members whereof one is disengaged from the recoiling bolt upon firing of the shot, and adapted to engage, due to centrifugal action, in a recess of the setting disk so as to thereby cause the pawl to disengage from the dwell of the slide.
  • Figure 1 is a sectional view illustrating a part including the clock-work, of the regulating drive mechanism which is adapted at the same time to actuate the means for preventing premature detonation within the barrel of the ordnance;
  • Figure 2 is a similar sectional view showing the igniting device viewed from the timing disk;
  • Figure 3 is a view in 'top plan of the setting disk;
  • Figure 4 is a view in section taken on the line IV-IV in Figures 1 and 2, showing in plan view, both the drive mechanism and the disengaging device;
  • Figure 5 is a View in top plan of the lowermost or innermost plate on which the igniting device is mounted.
  • the detonating cap f is accommodated in a slide g adapted to move radially with relation to the axis of the projectile and provided with a lateral recess, catch or dwell for a pawl h to engage therein, the back of the pawl being adapted to iit in arecess of the shaft i.
  • a short lever i1 of conventional con struction adapted to permanently engage or rest 9 ona shaft k as usual in fuses of the type to which my invention belongs.
  • the upper or outer end of the shaft k is equipped with a dropping lever kl, as usual, -and a locking pin k2 adapted to engage and lie in contact with the 100 dying-back or recoiling bolt l, so that, normally or during storage and Itransportation, the said dropping or setting lever k1 will not be in contact with the setting disk m and, therefore, -will not be capable of dropping into the peripheral 105 recess m1 of the latter, see Figure 3.
  • the clock-Work further is adapted, by means of suitable transmission members, to rotate a shaft o integrally formed or otherwise rigidly connected with a cam o1 adapted to protrude 110 in the path of the, slide g and remain therein during a certain predetermined interval of time after the firing of the shot, so that the slide will be locked and cannot move until or before the said interval of time has elapsed.
  • a small at spring p serves as a means for retaining the slide carrying the detonation cap f immovable in normal position during transportation.
  • the recoiling bolt 1 Upon ring, the recoiling bolt 1 will ily back (or downwards in Figure 2) due to inertia so as to release the pin la and thereby permit the lever k1 to engage the periphery of the setting disk m due to the centrifugal action of a counter-weight attached to the one arm of the lever.
  • a mechanical time fuse for projectiles wherein ignition is eiected solely by centrifugal action comprising a movable body having a detonating member, and adapted to be moved under centrifugal action after the expiration of the time interval for which the fuse has been set, said movable body being shaped to forma radially displaceable slide, means normally locking said slide during storage and transportation, a recoil bolt and a setting disk adapted to unlock and release said slide upon ring, after the expiration of the said set time interval, and means 1 for preventing premature ignition after ring the projectile, whilethe projectile is stillwithin the barrel of the gun, said means comprising a cam -projecting normally into the path of the said slide, and mechanism to move the same. to release the slide completely, prior to the time that the same is released by the setting disc, but subsequent to the instant at which the projectile leaves thebarrel of the gun.
  • a mechanical time fuse for projectiles wherein ignition is effected solely by centrifugal action comprising a movable body having a detonating member, and adapted to be moved under centrifugal action after the expiration of the time interval for which the fuse/has been set,
  • said movable body being shaped to form a radially displaceable slide, means normally locking said slide duringstorage and transportation, a recoil bolt and a setting disk adapted to unlockA and release said slide upon ring, after the expiration of the said set time interval, a' pawl, means intermediate between and connecting the pawl and the recoil bolt, to engage and lock the said slide, one of said intermediate means being arranged to be released from the recoil bolt upon 135 ring, and arranged to subsequently engage the periphery of the setting disk due solely to centrifugal action, said disk having a recess in its margin, whereby the said means will nally engage in said recess and thereby cause the pawl to becomedisengaged from the slide.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Transmission Devices (AREA)
  • Air Bags (AREA)
US554102A 1930-08-15 1931-07-30 Mechanical time fuse Expired - Lifetime US1927746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE156485X 1930-08-15

Publications (1)

Publication Number Publication Date
US1927746A true US1927746A (en) 1933-09-19

Family

ID=5677848

Family Applications (1)

Application Number Title Priority Date Filing Date
US554102A Expired - Lifetime US1927746A (en) 1930-08-15 1931-07-30 Mechanical time fuse

Country Status (4)

Country Link
US (1) US1927746A (enrdf_load_stackoverflow)
CH (1) CH156485A (enrdf_load_stackoverflow)
GB (1) GB370766A (enrdf_load_stackoverflow)
NL (1) NL29853C (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450890A (en) * 1939-01-23 1948-10-12 Eugene J Fix Mechanical time fuse
US2453479A (en) * 1939-10-05 1948-11-09 Richard H Whitehead Time fuse
US2468053A (en) * 1941-09-20 1949-04-26 Eugene J Fix Fuse plate structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2450890A (en) * 1939-01-23 1948-10-12 Eugene J Fix Mechanical time fuse
US2453479A (en) * 1939-10-05 1948-11-09 Richard H Whitehead Time fuse
US2468053A (en) * 1941-09-20 1949-04-26 Eugene J Fix Fuse plate structure

Also Published As

Publication number Publication date
NL29853C (enrdf_load_stackoverflow)
CH156485A (de) 1932-08-15
GB370766A (en) 1932-04-14

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