US1956223A - Fuse for projectiles - Google Patents
Fuse for projectiles Download PDFInfo
- Publication number
- US1956223A US1956223A US658187A US65818733A US1956223A US 1956223 A US1956223 A US 1956223A US 658187 A US658187 A US 658187A US 65818733 A US65818733 A US 65818733A US 1956223 A US1956223 A US 1956223A
- Authority
- US
- United States
- Prior art keywords
- casing
- percussion
- fuse
- sleeve
- fuse body
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C1/00—Impact fuzes, i.e. fuzes actuated only by ammunition impact
- F42C1/02—Impact fuzes, i.e. fuzes actuated only by ammunition impact with firing-pin structurally combined with fuze
-
- 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
- F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
- F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force
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- 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
- F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
- F42C15/26—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means using centrifugal force
Definitions
- This invention relates to an improvement in percussion fuses of the Well-known type in which the percussion mechanism is constituted by a movable casing containing the whole of the mechanism and normally fixed relatively to the fuse body by means of one or more looking members such as pins.
- the well-known system above referred to is so arranged that the member or members locking the movable casing, for instance the locking pin, are exposed, on the shot being fired, to the action of inertia of the percussion system (movable casing or possibly casing and the support of the casing) but only to a given extent which can be regulated, this action of inertia of the movable casing and possibly also of its support producing, in the conditions in question, a strain on the locking members, without however this 0 strain or decrease of resistance being sufficient to bring about their breaking.
- the percussion system and its locking member or members are carried according to the present invention by an element the position of which is adjustable relative to a safety device which becomes withdrawn at the end of the acceleration, and which forms at the same time a stop or abutment for the percussion system on firing the shot.
- the adjustment of the element carrying the percussion system allows of a small inward movement of the percussion system on the firing of the shot, with the result that under the action of inertia of the said percussion system. the locking member is strained without however being broken.
- Figures 1 to 6 relate to a first construction.
- Figures 1 and 2 show the fuse in longitudinal section through the axis, in the position which the parts occupy before the shot is fired, and in the position at the end of the acceleration respectively.
- Figure 3 is a sectional plan on line III-III of Figure 1.
- Figure 4 shows separately in elevation the movable casing of the percussion system.
- Figure 5 is a plan of the winged washer used with this system.
- Figure 6 shows separately in elevation one of the elements of the centrifugal safety device with which the said system is combined.
- the percussion system of the well known type is constituted by a casing a in which are arranged the striker or needle I) and the percussion cap 0.
- the casing a is provided with windows or recesses 01, with which engage the wings h of a washer It provided with a central hole b ( Figure 5). These wings rest in front against inner projections 01 of the head element at of the fuse body de.
- the casing a is secured by a pin 7 to the fuse body which comprises according to the invention an element d which can be secured in a variable position to the complementary element 6 for the purpose of regulating the distance a: between the shoulder a of the casing a and one of the elements of the centrifugal safety device.
- the latter is constituted by a sleeve 1' and segments g of a well known type held against the sleeve by a binding 9 the sleeve 1 pressing in the position of rest on the said segments by means of a collar I under the action of a spring f one end of which rests against lugs or projections d engaging with two diametrically opposite slots f of the said sleeve.
- Figure 2 shows the position which the parts occupy when, after the acceleration is finished, the segments g have moved apart under the action of centrifugal force, which allows an inward movement of the sleeve f under the pressure of the spring I pressing against the projections al In this position the sleeve 1 forms in a well known manner an obstacle to any accidental return of the segments 9 which have been moved apart.
- the sensitiveness of the fuse on impact can be increased whilst retaining for the locking member 7' before working a strength equal to that which is given to it in well known fuses of the type under consideration, owing to the fact that at the moment of impact the locking member is in a strained or weakened condition.
- sion system in other words, the movable casing abch', is locked by a pin 7' .to a tubular part
- This tubular part is provided with windows k with which engage the extended endsof the wings h of the washer h-h and the tube forms in its upper part a guide for the casing, and at the same time its rear part forms a conduit for the transmission of fire.
- the sleeve m moves inwards and comes in a well known manner into the path followed by the segments g in moving apart.
- the inertia of the percussion system abc will also act on the pin 9' until the moment when the enlarged head of the striker a meets the front edge of the sleeve f.
- the sleeve m is driven forwards under the action of the spring f and releases the segments 9 which are moved apart by centrifugal force, which enables the sleeve 1 to be driven rearwards by the spring F.
- the mechanism is thus cooked, and its locking pin j has undergone a limited reduction of strength on the shot being fired, as in the preceding construction.
- Figures 8 to 11 show a modified construction of Figure 7 applied to; a fuse of the type of those described and illustrated in U. S. Letters Patent to Remondy, No. 1,854,669, the parts similar to those of Figure .7 being marked with the same reference letters. The only difference between this construction and that of Figure '7 is to be.
- the fuse acts by driving in of the front element in the well known manner, the parts assuming at the moment of the percussion the position indicated in Figurelo.
- a percussion fuse for projectiles comprising a fuse body adapted to be connected to a projectile, a percussion mechanism including a casing axially movable with respect to said fuse body and relatively movable striker and percussion cap members housed within said casing, means for normally retaining said casing and members in a fixed position relative to said fuse body including a supporting element secured to said fuse body and a yieldable retaining element securing said percussion mechanism to said supporting element, safety means for positively preventing movement of said striker and percussion cap members into striking position until after the projectile has been fired, said means being so constructed and arranged as to permit a relatively small axial movement of said percussion mechanism relative to said supporting element at the instant of firing due to the inertia thereof, said movement being limited by said safety means to an amplitude sufficient to deform and materially weaken said retaining element but insuificient to reduce its resistance below that necessary to balance the forces encountered in normal flight, and means for adjusting the position of said supporting element relatively to said fuse body and
- a percussion fuse for projectiles comprising a fuse body adapted to be connected to a projectile, a percussion mechanism including a casing axially movable with respect to said fuse body and relatively movable striker and percussion cap members housed within said casing, means for normally retaining said casing and members in a fixed position relative to said fuse body including a supporting element secured to said fuse body and a frangible pin passing through both said percussion mechanism and said supporting element, centrifugally actuated safety means for positively preventing movement of said striker and percussion cap members into striking position until after the projectile has been fired, said means being so constructed and arranged as to permit a relatively small axial movement of said percussion mechanism relative to said supported and the sensitivity of the fuse upon impact thereby varied.
- a percussion fuse for projectiles comprising a fuse body adapted to be connected to a projectile, a percussion mechanism including a casing axially movable with respect to said fuse body and relatively movable striker and percussion cap members housed within said casing, means for normally retaining said casing and members in a fixed position relative to said fuse body including a supporting element secured to said fuse body and a frangible pin passing through both said casing and said supporting element, a sleeve axially movable relative to said supporting element and fuse body and forming a conduit for the transmission of fire from said percussion cap member to the projectile, centrifugally actuated safety means for positively preventing axial movement of said sleeve until after the projectile is in flight, a shoulder on said percussion mechanism, said safety means and sleeve being so constructed and arranged as to leave a relatively small space between one end of said sleeve and said shoulder when said ele ments are in normal position, whereby at the instant of firing said
- a percussion fuse for projectiles comprising a fuse body adapted to be connected to a projectile, a percussion mechanism including a casing axially movable with respect to said fuse body and relatively movable striker and percussion cap members housed within said casing, means for normally retaining said casing and members in a fixed position relative to said fuse body including a supporting element threaded to and forming the nose portion of said fuse body and a frangible pin passing through both said casing and said supporting element, a sleeve axially movable relative to said supporting element and fuse body and forming a conduit for the transmission of fire from said percussion cap member to the projectile, centrifugally actuated safety means for positively preventing axial movement of said sleeve until after the projectile has been fired, a shoulder formed on said percussion mechanism, said safety means and sleeve being so constructed and arranged as to leave a relatively small space between one end of said sleeve and said shoulder when said elements are in normal position, whereby
- a percussion fuse for projectiles comprising a fuse body adapted to be connected to a projectile, a percussion mechanism including a casing axially movable with respect to said fuse body and relatively movable striker and percussion cap members housed within said casing, means for normally retaining said casing and members in a fixed position relative to said fuse body including a tubular supporting element securedto said fuse body and forming a conduit for the transmission of fire from said percussion cap member to the projectile and a frangible pin passing through both said casing and said supporting element, a sleeve axially movable relative to said supporting element and fuse body, centrifugally actuated safety means for positively preventing axial movement of said sleeve until after the projectile is in flight, both said sleeve and safety means surrounding said tubular supporting element, a shoulder formed on said percussion mechanism, said safety means and sleeve being so constructed and arranged as to leave a relatively small space between one end of said sleeve and said shoulder
- a percussion fuse for projectiles comprising a fuse body adapted to be connected to a projectile
- a percussion mechanism including a'casing axially movable with respect to said fuse body and relatively movable striker and percussion cap members housed within said casing, means for normally retaining said'casing and members in 1a fixedposition relative to said fuse body includ-- ing a tubular supporting element housed within and threaded to said fuse body, a thimble axially movable within said element on which said casing is supportedand a frangible pin passing through said thimble and said supporting element, a sleeve axially movable relative to said supporting element and fuse body, centrifugally actuated safety means for positively preventing axial movement of said sleeve until after the projectile is in flight, a shoulder formed on said percussion mechanism, said safety means and sleeve being so constructed and arranged as to leave a relatively small space between one end of said sleeve and said shoulder when said elements are in normal position, whereby at the instant of firing said percussion mechanism is permitted a limited axial
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Percussive Tools And Related Accessories (AREA)
- Toys (AREA)
- Air Bags (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR635897X | 1932-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1956223A true US1956223A (en) | 1934-04-24 |
Family
ID=8994570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US658187A Expired - Lifetime US1956223A (en) | 1932-12-20 | 1933-02-23 | Fuse for projectiles |
Country Status (6)
Country | Link |
---|---|
US (1) | US1956223A (de) |
CH (1) | CH165189A (de) |
DE (1) | DE635897C (de) |
FR (1) | FR761468A (de) |
GB (1) | GB404163A (de) |
NL (1) | NL34950C (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10337848B2 (en) * | 2016-12-23 | 2019-07-02 | Omnitek Partners Llc | Spin acceleration armed inertia igniters and electrical switches for munitions and the like |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU32537A1 (de) * | 1952-12-30 |
-
0
- NL NL34950D patent/NL34950C/xx active
-
1932
- 1932-12-20 FR FR761468D patent/FR761468A/fr not_active Expired
-
1933
- 1933-01-19 CH CH165189D patent/CH165189A/fr unknown
- 1933-01-20 DE DESCH100153D patent/DE635897C/de not_active Expired
- 1933-02-23 US US658187A patent/US1956223A/en not_active Expired - Lifetime
- 1933-03-06 GB GB6762/33A patent/GB404163A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10337848B2 (en) * | 2016-12-23 | 2019-07-02 | Omnitek Partners Llc | Spin acceleration armed inertia igniters and electrical switches for munitions and the like |
Also Published As
Publication number | Publication date |
---|---|
CH165189A (fr) | 1933-11-15 |
GB404163A (en) | 1934-01-11 |
NL34950C (de) | |
DE635897C (de) | 1936-10-01 |
FR761468A (fr) | 1934-03-20 |
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