GB524712A - Improvements in percussive fuzes for projectiles - Google Patents
Improvements in percussive fuzes for projectilesInfo
- Publication number
- GB524712A GB524712A GB3725/39A GB372539A GB524712A GB 524712 A GB524712 A GB 524712A GB 3725/39 A GB3725/39 A GB 3725/39A GB 372539 A GB372539 A GB 372539A GB 524712 A GB524712 A GB 524712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head
- striker
- fuze
- washer
- remondy
- 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
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Percussive Tools And Related Accessories (AREA)
- Air Bags (AREA)
Abstract
524,712. Projectile fuzes. ARBEY, M. L., REMONDY, G. H., and REMONDY, A. G. (Representatives of REMONDY, L. E.). Feb. 4, 1939, No. 3725. Convention date, Feb. 26, 1938. [Class 9 (i)] Relates to a percussion fuze having a fracturable striker of light weight as claimed in Specificafion 429,724 and consists in forming the striker as a simple nail having a large, thin and resilient head, the outer edge of which engages the front part of the fuze so as to close the latter more or less hermetically. As shown in Fig. 1, the head 2 of the striker 1 is applied to a shoulder 3 of the fuze body 4 and is held in place by a beading 5 of varnish or mastic, a certain space e being provided between the head 2 and the entrance of the passage 6 into which the striker projects and at the lower end of which is situated the percussion cap 7. On impact the head is deformed inwardly until it abuts against the plane surface 8 whereupon it is dissociated from the striker which thereupon advances and strikes the percussion cap. The sensitivity of the fuze may be increased by forming the head with weakening grooves or recesses or with an edge of reduced thickness. In order to increase the safety of the fuze, a compressible washer, e.g., of blotting paper or felt, may be provided in the space e, Fig. 6 (not shown) or as shown in Fig. 7 a washer 12 adapted to fuse under the heat developed by the friction between the projectile and the air during flight or to fracture under the action of centrifugal force, may be provided beween the head 2 and surface 8. Further, when it is desired to disarm the fuze automatically at the end of a certain time after discharge, the shoulder 3 may be formed as a strip 32, Fig. 7, of a readily fusible alloy. Heatconductive cores 33 of a metal, such as sodium, may also be provided to cause the heat produced by the friction of the air against the outer wall of the fuze to penetrate to the vicinity of the percussion cap so that; when this heating is sufficient, the cap will ignite automatically. When the obstacle encountered by the projectile is soft so that the reaction shock is insufficient to produce the dissociation or fracture of the striker, the striker head is given a convex shape, Fig. 8 (not shown) or is associated with a brittle auxiliary member, such as a washer, Fig. 10 (not shown), a cone, Fig. 11 (not shown) or a steel needle, Fig. 12 (not shown), or with a spring- pressed ball, Fig. 13 (not shown). Where it is desired that the fuze shall operate even in the case of low residual velocities, the weight of the stem of the striker is increased as shown in Fig. 14 by screwing or crimping an additional cylindrical or conical weight 21 on to the stem. Fig. 16 shows a simplified construction of fuze in which the striker is formed with a convex head, the edges of which rest directly on the surface 8, sufficient clearance being left between the edge of the head and the wall 25 of the fuze body to enable the head to flatten on impact. In a modification of this construction, a rigid washer is disposed in front of the striker head. Specification 456,300 also is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR720097X | 1938-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB524712A true GB524712A (en) | 1940-08-13 |
Family
ID=9091796
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3725/39A Expired GB524712A (en) | 1938-02-26 | 1939-02-04 | Improvements in percussive fuzes for projectiles |
Country Status (7)
Country | Link |
---|---|
US (1) | US2265195A (en) |
BE (1) | BE432966A (en) |
CH (1) | CH209185A (en) |
DE (1) | DE720097C (en) |
FR (1) | FR843033A (en) |
GB (1) | GB524712A (en) |
NL (2) | NL92144B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2748705A (en) * | 1952-10-28 | 1956-06-05 | Frank B Hale | Inertia and point detonation impact fuze |
US4237788A (en) * | 1978-12-18 | 1980-12-09 | Ares, Inc. | Explosive fuse for ballistic projectile |
US4242964A (en) * | 1978-12-18 | 1981-01-06 | Ares, Inc. | Explosive fuse for projectile |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2466726A (en) * | 1941-03-28 | 1949-04-12 | Wiley T Moore | Projectile |
US2495717A (en) * | 1942-07-01 | 1950-01-31 | Raymond L Graumann | Fuse |
DE960071C (en) * | 1951-07-07 | 1957-03-14 | Oerlikon Buehrle Ag | Impact fuse for projectiles |
US2812714A (en) * | 1951-10-15 | 1957-11-12 | Wheatley Samuel Edward | Firing device for a point detonating fuze |
CH328117A (en) * | 1953-11-19 | 1958-02-28 | Verga Casati Gianni | Complex trigger-torch device for igniting an exploding vehicle, notably an artillery case |
-
0
- NL NL51022D patent/NL51022C/xx active
- NL NL92144D patent/NL92144B/xx unknown
- BE BE432966D patent/BE432966A/xx unknown
-
1938
- 1938-02-26 FR FR843033D patent/FR843033A/en not_active Expired
- 1938-05-29 DE DER102447D patent/DE720097C/en not_active Expired
-
1939
- 1939-02-04 CH CH209185D patent/CH209185A/en unknown
- 1939-02-04 GB GB3725/39A patent/GB524712A/en not_active Expired
- 1939-02-25 US US258554A patent/US2265195A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2748705A (en) * | 1952-10-28 | 1956-06-05 | Frank B Hale | Inertia and point detonation impact fuze |
US4237788A (en) * | 1978-12-18 | 1980-12-09 | Ares, Inc. | Explosive fuse for ballistic projectile |
US4242964A (en) * | 1978-12-18 | 1981-01-06 | Ares, Inc. | Explosive fuse for projectile |
Also Published As
Publication number | Publication date |
---|---|
BE432966A (en) | |
DE720097C (en) | 1942-04-27 |
NL51022C (en) | |
CH209185A (en) | 1940-03-31 |
NL92144B (en) | |
US2265195A (en) | 1941-12-09 |
FR843033A (en) | 1939-06-23 |
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