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US1890552A - Time fuse mechanism for projectiles - Google Patents

Time fuse mechanism for projectiles Download PDF

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Publication number
US1890552A
US1890552A US623192A US62319232A US1890552A US 1890552 A US1890552 A US 1890552A US 623192 A US623192 A US 623192A US 62319232 A US62319232 A US 62319232A US 1890552 A US1890552 A US 1890552A
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US
United States
Prior art keywords
crown
bolt
trigger
spring
clockwork
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
US623192A
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English (en)
Inventor
Varaud Andre
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.)
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 US1890552A publication Critical patent/US1890552A/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
    • 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
    • F42C9/045—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 and the firing-pin being activated by a spring

Definitions

  • the object of the invention is a clock work motion for mechanical time fuses.
  • FIG. 1 is an axial section of the clockwork.
  • Fig. 2 is a section on line IIII of Fig. 1.
  • FIG. 3 and 4 illustrate details.
  • FIG. 1, 1 indicates a hammer guided in a tube 2 and subjected to the action of a percussion spring 3 and can be locked in the safety position by a bolt 4 engaging in a lateral notch 5 extending over one half of the transverse section of the bolt.
  • This bolt 4 is pivotally mounted on a pivot 6 and is subjected to the action of a back-motion spring 7 acting against a pin 8 carried perpendicularly by the bolt.
  • the bolt 4 Before firing the bolt 4 is normally kept in its active position against the action of the spring 7 by a trigger 9 with spring socket 10 and shifting under the action of inertia at the moment of firing, whilst from this moment to the moment of explosion of the projectile, that is to say during the travel of the latter, this bolt is kept in this active position, against the action of its spring 7 added to that of the centrifugal force, by a toothed crown 11 with internal teeth rotating freely in an annular housing 12 provided in the casing of the clockwork.
  • a claw 13 of a bolt 4 bears during the time elapsing between the moment when the trigger 9 moves and the moment when the hammer 1 is released.
  • An opening 14 is provided in the said rim at the level of the said claw.
  • the crown further comprises a pin 15 normally engaging in a corresponding notch 16 of the trigger 9, so as to prevent any accidental displacement of the latter before the winding of the clockwork A situated in the upper part of the mechanism takes place.
  • the crown 11 rotates anti-clockwise, that is to say, in the direction of the arrow 18, through an angle varying from 0 to a little less than 360, according to the length of trajectory which it is desired to obtain, which effects the regulation of the time of firing the fuse. Whilst this movement of the crown 11 is proceeding, the bolt 4 and trigger 9 623,192, and in Switzerland July 25, 1931.
  • the trigger 9, released from the pin 15, is free to withdraw at the start of firing, at the same time that the clockwork motion is set going, causing the crown 11 to return to zero in the direction of the arrow 19.
  • the trigger 9 is in fact held in the active i position by the spring 10, and as it is necessary to provide a certain clearance, seeing that this trigger is required to draw in at the moment of firing by inertia it is clear that, under the action of the pressure exerted on it, through the pin 15, the said trigger will rock and give way more or less, according to the degree of accuracy of its adjustment in the cylinder 20 in which it is guided.
  • the crown 11 that is to say the rotary driving member, is provided with at least one abutmentco-operating with a fixed abutment integral with the base of the-clock:-
  • the position of the crown abutment in relation to that of the notch of the rotary member being such that when it comes into contact with the fixed abutment the retaining bolt of the hammer is capable of being released.
  • Fig. 3 shows the position of this abutment 21 placed a little behind the pin 15 and Fig. 4 shows a plate 22 integral with the base 23 of the clockwork A andprovided with a fixed abutment 24 for the crown abutment.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Air Bags (AREA)
US623192A 1931-07-25 1932-07-18 Time fuse mechanism for projectiles Expired - Lifetime US1890552A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1890552X 1931-07-25

Publications (1)

Publication Number Publication Date
US1890552A true US1890552A (en) 1932-12-13

Family

ID=4566665

Family Applications (1)

Application Number Title Priority Date Filing Date
US623192A Expired - Lifetime US1890552A (en) 1931-07-25 1932-07-18 Time fuse mechanism for projectiles

Country Status (4)

Country Link
US (1) US1890552A (fr)
CH (1) CH156163A (fr)
DE (1) DE586571C (fr)
FR (1) FR740109A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446745A (en) * 1941-06-20 1948-08-10 Delay Fernand Clockwork-operated time fuse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540595A (fr) * 1954-09-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446745A (en) * 1941-06-20 1948-08-10 Delay Fernand Clockwork-operated time fuse

Also Published As

Publication number Publication date
CH156163A (fr) 1932-07-31
FR740109A (fr) 1933-01-21
DE586571C (de) 1933-10-23

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