US2384252A - Spring arrangement for time fuses - Google Patents

Spring arrangement for time fuses Download PDF

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Publication number
US2384252A
US2384252A US400841A US40084141A US2384252A US 2384252 A US2384252 A US 2384252A US 400841 A US400841 A US 400841A US 40084141 A US40084141 A US 40084141A US 2384252 A US2384252 A US 2384252A
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US
United States
Prior art keywords
spring
balance
wheel
spring arrangement
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
US400841A
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English (en)
Inventor
Honger Guido
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.)
Mefina SA
Original Assignee
Mefina SA
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 Mefina SA filed Critical Mefina SA
Application granted granted Critical
Publication of US2384252A publication Critical patent/US2384252A/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

Definitions

  • An object of the present invention is to provide by extremely simple means an improved balance-wheel torsion spring wherein proper equalization of the operative length of said spring is achieved while the clockwork mechanism is being made or when it is subsequently regulated.
  • Another object of the invention is to provide an improved balance-wheel torsion spring which while fulfilling the first-cited object afiords substantial unsensitiveness when the projectile fitted with the clockwork fuse thus equipped is fired off from the gun.
  • Still another object of the invention is to provide a tape-shaped or wire-shaped balance-wheel spring operating by torsion and having an undulated shape, so that it can without being damaged yield to slight distortions or small longitudinal shifts of one of its securing points with respect to the other parts of the clockwork mechamsm.
  • the invention comprises the novel structur and combination or arrangement of parts that will now be described with reference to the accompanying drawing exemplifying thesame and forminga part of the present disclosure.
  • j v Figur 1 is partly an elevational view and part.- ly'aIvertical sectional view showing oneform of the improved torsionspring as associated with parts of a clockwork mechanism adaptable to a time fuse for a projectile.
  • Figures 2,13 andxl are. fragmentary detail views showing other forms that may. be taken by. the torsion spring. r
  • I0 designates the tapelike or wire-like torsion spring which has an une dulated or sinuous outline.
  • the lowerend of the spring I0 is engaged in a slot formed in the upper end of an upstanding pin H and held in said slot byya thimble-shaped bush l.2..
  • the pin II is carried in a peripherally, groovedbearing 13; it has a stepped lowerenlargement 14' and forms the axis of an underlying balance-wheel, l5which is supported at somedistancefroma subjacent hollow carrier. or base L6. forming. the lower part of the .clockwork mechanism which may be of any conventional structure.
  • the balance-wheel I5 is clear of the carrier [6 and may be held motionless during the transportation of the fuse by any conventional lock which is not shown as it forms no part of the invention. This will prevent any premature unwinding of the clockwork mechanism.
  • the bearing I3 is clamped in the apertured bottom of an upstanding tubular structure I! which forms the upper part or platen of the clockwork mechanism.
  • an upstanding tubular structure I! which forms the upper part or platen of the clockwork mechanism.
  • the smooth inner wall of this structure IT is telescopically engaged the bottom end of a carrying sleeve l8 while the outer Wall of said structure I! is screw-threaded as at Ila to match the inner screw thread of a retaining skirted nut l9 engaged over the externally screw-threaded wall 18a of the sleeve I8.
  • Said wall l8c has a shoulder I by which any undue screwing down motion of the nut I9 is precluded.
  • the top face of the sleeve [8 has a diametrical cut and a perip-heral shoulder defining a notch in which is accommodated a clamping 'ring; 24.'
  • the distance between the points at which the torsion spring [0 isheldi at its ends may be varied by more or less screwing downtheskirted nut l9 upon the screwthreaded wall l8a of the carrier sleeve 18.
  • the required degree of accuracy may be obtained by providing the screw threads Ila and 18a, of opposite or differentiated pitch. .,When proper adjustment hasbeen secured,i the parts I! and I8 may be clamped together bydriving the screw 2
  • thetorsion spring Ill may be rendered longitudinally resilient. by being looped or crooked intermediate its ends as shown byway of examples in .Figs..2; 3 and i.
  • the spring I0 is formed at any suitable position or positions intermediate its ends with a double counterelbow or S-shaped loop as shown at 25.
  • the spring in is formed at any convenient position onpositions intermediate its ends with a substantially circular loop 26 situated in a plane more or less parallel to the. general direction in which the" spring extends.
  • the spring I 0 is provided at any-convenient position or posi- 2,384,252 I I g tions between its ends with a substantially circular or polygonal loop 21 situated in a plane more or less perpendicular to the general direc tion in which the spring extends.
  • a balance wheel mechanism comprising a bearing, a balance wheel oscillatablein said bearing,- atorsion spring connected atone end to said balance wheel at the axis thereof, and a holding member mounted .inthe fuse opposite said balance wheel and to which member theother end of said torsion spring is connected, said torsion spring consisting of a. longitudinal wire having its mass lying substantially in the axis of torsion and having a configuration providing. predetermined limited longitudinal resilience greater. than that Of the wire itself.
  • a balance wheel mechanism according to claim 1 in which the torsion spring is of undulatory configuration longitudinally between its points of connection' I 3.
  • a balance wheelmechanism according to claim 1. in which thetorsion spring comprises straight portions at the ends thereof connected 0 to thebalance wheel and holding members respectively and at least one loop intermediate of said straight portions. GUIDO I-IONG'ER.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Springs (AREA)
  • Braking Arrangements (AREA)
US400841A 1940-08-26 1941-07-02 Spring arrangement for time fuses Expired - Lifetime US2384252A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH551886X 1940-08-26

Publications (1)

Publication Number Publication Date
US2384252A true US2384252A (en) 1945-09-04

Family

ID=4519691

Family Applications (1)

Application Number Title Priority Date Filing Date
US400841A Expired - Lifetime US2384252A (en) 1940-08-26 1941-07-02 Spring arrangement for time fuses

Country Status (5)

Country Link
US (1) US2384252A (de)
CH (1) CH221338A (de)
DE (1) DE740000C (de)
FR (1) FR886936A (de)
GB (1) GB551886A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860580A (en) * 1952-08-15 1958-11-18 Varaud Claude Regulating device with torsion wire for clockwork
US3299814A (en) * 1963-12-20 1967-01-24 Junghans Geb Ag Clockwork fuze

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE936140C (de) * 1950-10-01 1955-12-07 Hugo Hettich Lagerung fuer die Unruhe von Uhrwerken
NL86756C (de) * 1952-08-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860580A (en) * 1952-08-15 1958-11-18 Varaud Claude Regulating device with torsion wire for clockwork
US3299814A (en) * 1963-12-20 1967-01-24 Junghans Geb Ag Clockwork fuze

Also Published As

Publication number Publication date
FR886936A (fr) 1943-10-28
GB551886A (en) 1943-03-15
CH221338A (de) 1942-05-31
DE740000C (de) 1943-10-09

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