US2073250A - Percussion fuse - Google Patents

Percussion fuse Download PDF

Info

Publication number
US2073250A
US2073250A US27246A US2724635A US2073250A US 2073250 A US2073250 A US 2073250A US 27246 A US27246 A US 27246A US 2724635 A US2724635 A US 2724635A US 2073250 A US2073250 A US 2073250A
Authority
US
United States
Prior art keywords
shutter
striker
detonator
fuse
pin
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
US27246A
Other languages
English (en)
Inventor
Morpeth William
Heseltine John Chapman Whaley
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.)
Vinters Armstrongs Ltd
Original Assignee
Vickers Armstrongs Ltd
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 Vickers Armstrongs Ltd filed Critical Vickers Armstrongs Ltd
Application granted granted Critical
Publication of US2073250A publication Critical patent/US2073250A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F42C15/34—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/606—Accessories therefor
    • E05Y2201/61—Cooperation between suspension or transmission members
    • E05Y2201/612—Cooperation between suspension or transmission members between carriers and rails
    • E05Y2201/614—Anti-derailing means
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/688—Rollers

Definitions

  • W Afurther object is tofiprovide a safety device -for:ensuring a greater time interval before arm- ..i-ng of thefuse occurs after the shock of discharge.
  • the striker shutter and the element which-masks the prime detonator will hereinafter be referred to as the "detonator shutter.
  • the shutters ⁇ must operate successively and one of said shut- ,,.ters can only move after the other shutter has reached ,a predetermined position, thus affording a long time interval before arming.
  • the detonator shutter or'the striker shutter may. comprise .two inter-locking elements as hereinafter referred to.
  • Figures 2 and 3 are cross-sectional views 'of :..Fi'gure l taken along the lines 272 and 3-3 of Figure '1 respectively;
  • Figure 4 is an'enlarged diagrammatic perspective view of the striker shutter and detonator Figure 5 is. a longitudinal.cross-sectional View '1 iof 13110131181.
  • Figures 6 and '7 are cross-sectional views 50f Figure-5* taken along' the lines 6 6 and
  • Figure. 8 is a longitudinal sectional viewof an- 1 otherzconstruction according-to the invention.
  • Figure 14 is a viewsimilar to Figure 13, but with the parts in a different position.
  • Figure 14a is: cross sectional View of a modified form of the construction Shown in Figures 11-14 taken along a linecorresponding to l2-l2 in 5 Figure 11 but looking from above.
  • Figure 15 is a longitudinal section of a fuse embodying a further construction of the invention.
  • Figures 16 and 17 are cross-sectional views of Figure taken along the lines 16-46 and 11-17 respectively of Figure 15.
  • the reference numeral l8 indicates the body of the fuse; the reference numeral t9 the striker which in 15 the example shown is of the direct action type; the reference numeral 26 the prime detonator,
  • the detonator shutter 22 comprises a pivotally mounted plate or the like adapted "to be partially rotated in a plane at right angles to the axis of fuse.
  • the said plate has an aperture 23 which is nor- 25 mally disposed out of the pathor out of line with the prime detonator 20, but which is moved into line therewith as shownin dotted lines in Figure 3 by centrifugal force after discharge of the projectile and after thelatter has attained a predetermined angular velocity so that the prime detonator can communicate with the main deto- -nating element or elements-in the member 2
  • the striker shutter 25 comprises a plate orthe like pivoted on a pin 26 disposedparallel with the axis ofthe fuse, the pivot .pin 26 and thepivot pin:24 of the detonator shutter preferably -being disposed-symmetrically about the-axis of thefuse. as shown. ;'-I'he striker I9 is normally held ;in ant-unarmed position by being supported on thefsaid striker shutter'25 as shown, the pin on the striker passing through a slot 2'
  • the semi-circular projection engages the arcuate recess as shown in Figures 2 and 4 so that before the striker shutter 25 can rotate to a position in which the striker is armed as shown in dotted lines in Figure 2, the detonator shutter 22 must first rotate the pivot pin 24 so as to move the semi-circular projection 24 out of the path of the said recess 28.
  • the detonator shutter 22 and the striker shutter 25 are normally maintained in the positions in which they respectively mask the prime detonator and support the striker, by means of suitably disposed springs 30, 3!, such springs preferably comprising torsion springs surrounding the respective pivot pins 24 and 26 and located in slots in the shutters and having legs or arms abutting against the shutters and the inner wall of the fuse body. Movement of the detonator shutter 22 under the action of its associated spring may be limited, due to the engagement of the said detonator shutter with the pivot pin 26 of the striker shutter 25 as shown.
  • the detonator shutter 22 is first rotated under the action of centrifugal force and when it reaches a predetermined position the striker shutter is released or freed to enable it to be rotated about its pivot pin to release the striker.
  • the above described arrangement may be reversed as shown in Figures 5 to 7.
  • the striker shutter 32 is keyed to a pivot pin 33, the latter having a semi-circular projection 34 which is normally disposed in the path of an arcuate recess '35 on the detonator shutter 36.
  • the arrangement is such that after discharge of the shell the striker shutter is first moved to the position shown in dotted lines in Figure 6 leaving the striker in an armed condition, movement of the striker shutter 32 releasing the detonator shutter 36 so that the latter can thereafter move by centrifugal force to the dotted line position shown in Figure 7.
  • the striker shutter and the detonator shutter and the pivot pins are housed in recesses in the fuse body I8 whilst in a modified construction shown in Figures 8, 9 and 10 the detonator shutter and the striker shutter, which are formed similarly to the construction shown in Figures 5, 6 and 7, are housed in a block 31 which is disposed in an axial bore in the fuse body I8.
  • the detonator shutter 36 is located in a recess 38 on the lower surface of the block 31 as shown in Figures 8 and 10, whilst the striker shutter 32 is housed in a recess 39 in the upper surface of the block 31.
  • the detonator 20 is secured in an axial hole in the block 31' and as shown is received in a cap 48 screw threaded into an aperture in the block 31.
  • the detonator shutter may comprise two associated pivoted elements. Such a construction is shown in Figures 11 to 14.
  • of the detonator shutter is pivotally mounted on a pivot pin 5
  • the elements of the detonator shutter are normally urged into the unarmed positions by suitably disposed springs similar tothose described above.
  • the detonator shutter may comprise a single pivoted plate as shown by 36 in Figure '7 and the striker shutter may comprise two interlocking elements designated by 58 and 59 in Figure 14a.
  • the element 58 is keyed to the pivot pin which at its lower end is formed with a semicircular projection normally disposed in the path of an arcuate recess on the detonator shutter as shown in Figure '7.
  • the element 59 is provided with a radial locking face 60 which prevents movement of the element 58 until the element 59 has moved to a predetermined position.
  • the elements 58 and 59 are each provided with an open ended slot BI and 62 respectively so that on being moved into the armed position the striker will be freed.
  • the elements of the striker shutter are normally urged into their unarmed positions by suitably disposed springs similar to those described with reference to the other embodiments.
  • FIG. 15 A further embodiment of the invention is shown in Figures 15, 16 and 17, the construction shown in these figures being different from those previously described in that the striker shutter 52 is radially disposed in the fuse body and is capable of sliding outwardly by centrifugal action to release the striker l9.
  • the inner end of the striker shutter 52 has a slot or is bifurcated at 53 to engage the inner end of the striker I9 as shown in Figure 15.
  • the bolt 52 is normally held in the position shown in Figure 16 in which it holds the striker l9 in an unarmed position by means of a pin 54 disposed parallel to the axis of the fuse, the said pin being rotated by the detonator shutter 55,
  • the striker l9 in the examples shown is normally held after arming in a projecting position by a suitable pin (or pins) which is sheared on impact of the projectile.
  • a suitable pin or pins which is sheared on impact of the projectile.
  • the shear pin is indicated at 51.
  • a percussion fuse including a striker and at least two centrifugally operated shutters one of which is adapted normally to maintain the striker in an unarmed position and the other of which normally masks another element, a pin coupled to one of said shutters, a semi-circular shaped boss at one end of said pin, the other shutter being formed to provide a semi-circular shaped recess with which said semi-circular shaped boss normally engages to prevent movement of said other shutter, the said pin and boss being adapted to be rotated out of the path of said other shutter when the shutter carrying the said pin moves to a predetermined position after which said other shutter is capable of movement.
  • a percussion fuse comprising a striker at least two centrifugally operated shutters, pivot pins disposed parallel to the axis of the fuse and on opposite sides of said axis and on which said shutters are mounted for angular movement, said shutters being disposed transversely to the axis of the fuse, one of said shutters being adapted normally to maintain the said striker in an unarmed position and the other of which masks another elementof the fuse, one of said pins being coupled to one of said shutters so as to be angularly movable therewith, saidpin being normally disposed in the path of the other shutter to prevent movement of the last menstriker element in an unarmed position, said bolt being radially disposed with respect to the axis of the fuse and capable of sliding outwardly by centrifugal action to release said striker, a shutter for masking an element of the fuse, said shutter comprising a pivotally mounted plate, having a 7 slot at one end thereof for supporting said striker, said locking element comprising a pin having a. flat
  • a percussion fuse comprising a striker, at least two centrifugally operated members, one of which is adapted to maintain said striker in an unarmed position and the other of which normally masks another element of the fuse, a pin coupled to one of said members so as to be angularly movable therewith, a locking element on one end of said pin, the other member being provided with a slot or recess with which said looking element engages to prevent movement of said other member, the locking element being adapted to be moved out of engagement with said other member when the member coupled to the pin moves to a predetermined position after which said other member is capable of movement.
  • one of said centrifugally operated members comprises a pair of elements having interlocking surfaces whereby one of said elements must first move before the movement of the other element which is coupled to the pin can occur each of said elements being formed to provide an aperture, the apertures in said elements being normally disposed out of alignment with one another but being moved into alignment after the elements are moved to predetermined positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuses (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
US27246A 1934-06-19 1935-06-18 Percussion fuse Expired - Lifetime US2073250A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB187151X 1934-06-19
GB50934X 1934-09-05
GB110635X 1935-06-11

Publications (1)

Publication Number Publication Date
US2073250A true US2073250A (en) 1937-03-09

Family

ID=27254566

Family Applications (1)

Application Number Title Priority Date Filing Date
US27246A Expired - Lifetime US2073250A (en) 1934-06-19 1935-06-18 Percussion fuse

Country Status (6)

Country Link
US (1) US2073250A (de)
BE (1) BE409977A (de)
CH (1) CH187151A (de)
DE (1) DE676246C (de)
FR (1) FR791386A (de)
GB (1) GB440338A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741183A (en) * 1945-05-26 1956-04-10 Raymond L Graumann Centrifugal projectile fuze
US2817295A (en) * 1953-08-14 1957-12-24 Harold B Wylie Firing pin for rocket fuze
US2900908A (en) * 1949-10-07 1959-08-25 Burrell Ellis Centrifugal safety device for a projectile fuze
US3119337A (en) * 1958-08-12 1964-01-28 Przychowski Siegfried Duni Von Percussion fuze, particularly for unrifled shells, primarily hollowcharge shells
US3190227A (en) * 1964-09-04 1965-06-22 Marquardt Corp Fluid device
US3368488A (en) * 1965-10-22 1968-02-13 Magnavox Co Arming and firing mechanism
US3613594A (en) * 1958-02-13 1971-10-19 Us Army Antishock spin device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE633870A (de) * 1962-06-21

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2741183A (en) * 1945-05-26 1956-04-10 Raymond L Graumann Centrifugal projectile fuze
US2900908A (en) * 1949-10-07 1959-08-25 Burrell Ellis Centrifugal safety device for a projectile fuze
US2817295A (en) * 1953-08-14 1957-12-24 Harold B Wylie Firing pin for rocket fuze
US3613594A (en) * 1958-02-13 1971-10-19 Us Army Antishock spin device
US3119337A (en) * 1958-08-12 1964-01-28 Przychowski Siegfried Duni Von Percussion fuze, particularly for unrifled shells, primarily hollowcharge shells
US3190227A (en) * 1964-09-04 1965-06-22 Marquardt Corp Fluid device
US3368488A (en) * 1965-10-22 1968-02-13 Magnavox Co Arming and firing mechanism

Also Published As

Publication number Publication date
CH187151A (fr) 1936-10-31
BE409977A (de)
GB440338A (en) 1935-12-19
FR791386A (fr) 1935-12-10
DE676246C (de) 1939-05-31

Similar Documents

Publication Publication Date Title
US2586437A (en) Powder train interrupter
US2073250A (en) Percussion fuse
US2537953A (en) Powder train interrupter
US3118379A (en) Fuze for a gyratory projectile
US3058422A (en) Wing assembly for missiles
US2718850A (en) Clockwork movement for a projectile
US1561687A (en) Point-detonating fuse
US2801589A (en) Fail-safe catch
US4691634A (en) Electro-explosive safety and arming device
US1229669A (en) Sensitive percussion-fuse.
US3049999A (en) Hand grenade
US1142375A (en) Exploding device for projectiles.
US1792631A (en) Fuse for projectiles
US3352241A (en) Projectile impact fuze
US2427671A (en) Fuze
US1802422A (en) Automatic firearm
US2711695A (en) Safety device for a fuze
US2362987A (en) Fuse
US2168482A (en) Mechanical detonator
US2362122A (en) Fuse
US860354A (en) Fuse for projectiles.
US1550978A (en) Fuse for projectiles
US3730101A (en) Low spin arming fuze for autorotating munitions
US1131164A (en) Projectile.
US2503519A (en) Fuse