GB1199707A – Improvements in or relating to a Time Fuse for Projectiles
– Google Patents
GB1199707A – Improvements in or relating to a Time Fuse for Projectiles
– Google Patents
Improvements in or relating to a Time Fuse for Projectiles
Info
Publication number
GB1199707A
GB1199707A
GB9753/69A
GB975369A
GB1199707A
GB 1199707 A
GB1199707 A
GB 1199707A
GB 9753/69 A
GB9753/69 A
GB 9753/69A
GB 975369 A
GB975369 A
GB 975369A
GB 1199707 A
GB1199707 A
GB 1199707A
Authority
GB
United Kingdom
Prior art keywords
disc
spring
clockwork
cap
coupler
Prior art date
1968-04-04
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
Application number
GB9753/69A
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.)
1968-04-04
Filing date
1969-02-24
Publication date
1970-07-22
1969-02-24
Application filed by Mefina SA
filed
Critical
Mefina SA
1970-07-22
Publication of GB1199707A
publication
Critical
patent/GB1199707A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
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
F42C9/048—Unlocking of clockwork mechanisms, e.g. by inertia or centrifugal forces; Means for disconnecting the clockwork mechanism from the setting mechanism
Abstract
1,199,707. Projectile fuzes. MEFINA S.A. 24 Feb., 1969 [4 April, 1968], No. 9753/69. Heading F3A. A time fuze for a spinning or non-spinning projectile providing transport, bore and trajectory safety comprises a movable carrier 41, Fig. 8, for bringing a primer 45 into line with a spring loaded striker 38, clockwork and escapement mechanism 2, Fig. 1, for controlling the operation of the striker and for preventing movement of the primer for a predetermined time after the projectile has been fired, a rotatable cap 6 movable with respect to the fuze body 1, a disc 3 turned by the cap, a clockwork drive spring 27, Fig. 8, a clockwork drive spindle 19 rigid with the disc 3 so as to tension the spring 27 when the cap 6 is rotated and thereafter to be subject to the torque of the spring, a retractable coupler 10, Fig. 1, for connecting the cap and disc, the coupler actively connecting the cap and disc when the fuze is not set and being movable to an inactive position when the spring 27 has been tensioned and the projectile axially accelerated. The coupler is held in its active position in a notch in the periphery of the disc 3 by a stop 5 on the body of the fuze. Weights 13 mounted on a leaf spring 12 are provided for moving the coupler into its inactive position. The clockwork and escapement mechanism comprises a cam 20, Fig. 8, rigid with the drive spindle 19, a main wheel 26 rotatably secured on the spindle by an elastic washer 25, intermediate wheels 29, 30 and an escapement mechanism 31, 32. The surface 70 of the spring loaded striker tends to drive a blocking plate 40 out of engagement with the striker, but movement of the plate is prevented by a shaft 33, Fig. 3. A bolt 36 carried by the shaft 33 is urged by a spring 35 against the periphery of the disc. The primer carrier is held in a safe position by a pin 68 and is further prevented from moving to the armed position by a finger 37 fixed to the shaft 33. A collar 48 on the pin 68 engages the balance 32 of the escapement mechanism and prevents operation of the clockwork. The pin is surrounded by inertia bushes 46 and 47 and resilient fingers 63 of the bush 46 engage in one of two grooves 61, 62 whilst the bush 46 is locked by cam 20. When the cap 6 is rotated, the motion is transmitted through the coupler 10 to the disc 3 and spindle 19 to tension the clockwork drive spring 27. Since the balance 32 of the escapement is locked by the collar on pin 68, the main wheel 26 remains stationary during rotation of the shaft 19. Rotation of the cap also moves the coupler out of engagement with the stop 5, and, rotation of the disc 3 disengages the cam 20 from bush 46. Upon firing the projectile, the weights 13 set back to lift the coupler out of the notch in the disc. Meanwhile the bushes 46, 47 set back and the fingers 63 engage in groove 62. As the projectile leaves the muzzle of the weapon from which it is fired, pin 68, Fig. 3, is lifted by spring 50, whereupon the carrier 41 is released for rotation under spring action and the balance 32 is released to permit operation of the clockwork. Rotation of the carrier to the armed position is prevented by finger 37 until the clockwork has rotated the disc 3 to a position in which the bolt 36 can enter the notch in the disc and permit rotation of the shaft 33 and thereby the finger 37. Further rotation of the disc permits deeper penetration of the bolt into the notch and further rotation of the shaft 33, whereupon a recess 34 in the shaft is aligned with the striker blocking plate 40 which then rotates to permit the striker to be driven against the primer.
GB9753/69A
1968-04-04
1969-02-24
Improvements in or relating to a Time Fuse for Projectiles
Expired
GB1199707A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH501368A
CH475544A
(en)
1968-04-04
1968-04-04
Mechanical rocket in time
Publications (1)
Publication Number
Publication Date
GB1199707A
true
GB1199707A
(en)
1970-07-22
Family
ID=4286429
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB9753/69A
Expired
GB1199707A
(en)
1968-04-04
1969-02-24
Improvements in or relating to a Time Fuse for Projectiles
Country Status (14)
Country
Link
US
(1)
US3616756A
(en)
AT
(1)
AT296089B
(en)
BE
(1)
BE724075A
(en)
BR
(1)
BR6804966D0
(en)
CH
(1)
CH475544A
(en)
DE
(1)
DE1814546C2
(en)
DK
(1)
DK133521B
(en)
ES
(1)
ES362080A1
(en)
FI
(1)
FI53629C
(en)
FR
(1)
FR1592296A
(en)
GB
(1)
GB1199707A
(en)
NL
(1)
NL164957C
(en)
NO
(1)
NO125066B
(en)
SE
(1)
SE353790B
(en)
Families Citing this family (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH549780A
(en)
*
1973-04-10
1974-05-31
Mefina Sa
TIME ROCKET.
SE391237B
(en)
*
1973-11-09
1977-02-07
Foerenade Fabriksverken
TENDROR MECHANISM WITH INTEGRATED SAFETY FUNCTIONS
CH600294A5
(en)
*
1976-04-06
1978-06-15
Mefina Sa
DE2643828C3
(en)
*
1976-09-29
1980-09-11
Gebrueder Junghans Gmbh, 7230 Schramberg
Detonator for bullets to be fired with little twist
CH635672A5
(en)
*
1980-01-29
1983-04-15
Mefina Sa
ROCKET FOR PROJECTILE.
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1693516A
(en)
*
1927-01-19
1928-11-27
Junghans Siegfried
Mechanical time fuse
BE540595A
(en)
*
1954-09-04
DE1200176B
(en)
*
1963-05-14
1965-09-02
Junghans Geb Ag
Clockwork ignition as a base ignition
CH409709A
(en)
*
1965-01-08
1966-03-15
Industrial Holding Ets
Non-rotating projectile fuze
1968
1968-04-04
CH
CH501368A
patent/CH475544A/en
not_active
IP Right Cessation
1968-11-18
BE
BE724075D
patent/BE724075A/xx
unknown
1968-11-19
FR
FR1592296D
patent/FR1592296A/fr
not_active
Expired
1968-12-09
AT
AT1197668A
patent/AT296089B/en
not_active
IP Right Cessation
1968-12-10
DE
DE1814546A
patent/DE1814546C2/en
not_active
Expired
1968-12-10
NO
NO4937/68A
patent/NO125066B/no
unknown
1968-12-12
NL
NL6817874.A
patent/NL164957C/en
not_active
IP Right Cessation
1968-12-18
BR
BR204966/68A
patent/BR6804966D0/en
unknown
1968-12-19
SE
SE17431/68A
patent/SE353790B/xx
unknown
1969
1969-01-02
ES
ES362080A
patent/ES362080A1/en
not_active
Expired
1969-01-02
DK
DK1669AA
patent/DK133521B/en
not_active
IP Right Cessation
1969-01-07
FI
FI35/69A
patent/FI53629C/en
active
1969-02-24
US
US801705A
patent/US3616756A/en
not_active
Expired – Lifetime
1969-02-24
GB
GB9753/69A
patent/GB1199707A/en
not_active
Expired
Also Published As
Publication number
Publication date
SE353790B
(en)
1973-02-12
AT296089B
(en)
1972-01-25
BR6804966D0
(en)
1973-03-20
NO125066B
(en)
1972-07-10
NL164957B
(en)
1980-09-15
ES362080A1
(en)
1970-11-01
CH475544A
(en)
1969-07-15
DE1814546C2
(en)
1983-09-22
FI53629B
(en)
1978-02-28
US3616756A
(en)
1971-11-02
NL164957C
(en)
1981-02-16
BE724075A
(en)
1969-05-02
NL6817874A
(en)
1969-10-07
FR1592296A
(en)
1970-05-11
DE1814546A1
(en)
1969-10-16
DK133521B
(en)
1976-05-31
FI53629C
(en)
1978-06-12
DK133521C
(en)
1976-10-25
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Legal Events
Date
Code
Title
Description
1970-12-02
PS
Patent sealed [section 19, patents act 1949]
1973-01-31
435
Patent endorsed ‘licences of right’ on the date specified (sect. 35/1949)
1984-10-31
PCNP
Patent ceased through non-payment of renewal fee
