US3416402A - Engine launching device - Google Patents
Engine launching device Download PDFInfo
- Publication number
- US3416402A US3416402A US586721A US58672166A US3416402A US 3416402 A US3416402 A US 3416402A US 586721 A US586721 A US 586721A US 58672166 A US58672166 A US 58672166A US 3416402 A US3416402 A US 3416402A
- Authority
- US
- United States
- Prior art keywords
- percussion
- launcher
- chamber
- launching
- engine
- 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
Links
- 238000009527 percussion Methods 0.000 description 69
- 238000004880 explosion Methods 0.000 description 47
- 238000010304 firing Methods 0.000 description 38
- 230000009471 action Effects 0.000 description 15
- 239000002360 explosive Substances 0.000 description 13
- 238000006073 displacement reaction Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 9
- 230000036961 partial effect Effects 0.000 description 7
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000001141 propulsive effect Effects 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41C—SMALLARMS, e.g. PISTOLS, RIFLES; ACCESSORIES THEREFOR
- F41C27/00—Accessories; Details or attachments not otherwise provided for
- F41C27/06—Adaptations of smallarms for firing grenades, e.g. rifle grenades, or for firing riot-control ammunition; Barrel attachments therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41F—APPARATUS FOR LAUNCHING PROJECTILES OR MISSILES FROM BARRELS, e.g. CANNONS; LAUNCHERS FOR ROCKETS OR TORPEDOES; HARPOON GUNS
- F41F7/00—Launching-apparatus for projecting missiles or projectiles otherwise than from barrels, e.g. using spigots
Definitions
- a projectile launcher comprises a fixed percussion device having a cylindrical recess at its forward end and a launcher having a cylindrical outer contour at its rear end which freely but closely slidably ts within the percussion device recess.
- the launcher has an internal explosion chamber for receiving an explosive charge.
- a projectile has a cylindrical recess at its rear end that freely but closely slidably tits over the cylindrical forward end of the launcher, so that the side walls of the percussion device recess and the projectile recess between them conne and reinforce at least most of the side walls of the explosion chamber.
- the explosion chamber has a slidable piston therein so that it is expansible at the same time that it is tightly closed, so that noise and gas do not escape.
- the present invention has for its object an engine launching device, such as anti-tank grenades, tear-exciting grenades, bursting grenades, ring grenades, and so on, by means of a launching charge located in an explosion chamber.
- an engine launching device such as anti-tank grenades, tear-exciting grenades, bursting grenades, ring grenades, and so on, by means of a launching charge located in an explosion chamber.
- the two types of launching devices mentioned hereabove may have either a closed explosion chamber, or an explosion chamber communicating with an expansion and escape chamber for the explosion gases.
- the rst solution, with the closed explosion chamber is generally preferred even though it requires a stronger and thus heavier explosion chamber, since it permits to obtain an operation of the launching device which is perfectly silent.
- the present invention has for its object a launching device for a projectile, comprising a gun-carrier provided with a percussion and detent device as well as a launching charge located inside an explosion chamber char- 3,416,402 Patented Dec. 17, 1968 acterized by the fact that this explosion chamber is connected to the projectile and/or to the percussion and detent device by means of a sliding coupling in the axial direction and by the fact that the launching charge is independent as well from the projectile as from the guncarrier and of its percussion and detent device, so that after firing this launching charge is ejected but still not launched with the projectile.
- the attached drawing shows schematically and by way of example one embodiment and some variants of the launching device for engines according to the invention.
- FIGURE l is a partial longitudinal cross-section of the launching device showing more particularly the launcherin ring position.
- FIGURE 2 is a partial longitudinal cross-section of the launcher showing a variant of it.
- FIGURE 3 is a partial longitudinal cross-section of the launching device showing more particularly the percussion and detent device at the unloaded stage.
- FIGURE 4 is a longitudinal cross-section of the percussion and detent device during its loading.
- FIGURE 5 is a partial longitudinal cross-section of the launching device showing more particularly the launcher immediately after the tiring.
- FIGURE 6 is a view on a reduced scale, certain parts eing partially broken away, of the launching device provided with a projectile in firing position.
- FIGURE 7 is a partial view on a reduced scale, certain parts being broken away, of the launching device and of the projectile immediately after the firing.
- FIGURE 8 is a partial view on a reduced scale of one embodiment of the launching device comprising an orientable gun-carrier.
- FIGURE 9 shows a variant of the launching device this one being mounted on a fire-arm.
- FIGURE 10 shows a variant of the launching device which comprises a fixed gun-carrier.
- FIGURE l1 shows a variant of the launching device on a rifle butt.
- FIGURE 12 shows a variant of the launcher in partial longitudinal cross-section.
- the launching device comprises a gun-carrier or resting and sighting device, a launcher or explosion chamber, provided with its launching charge and a percussion and detent device, xed on the gun-carrier, the whole being provided for the launching of an engine, such as an anti-tank grenade, a tear-exciting grenade, an explosive charge grenade, a firing grenade, or a signalisation grenade and so on.
- an engine such as an anti-tank grenade, a tear-exciting grenade, an explosive charge grenade, a firing grenade, or a signalisation grenade and so on.
- the gun-carrier A may present different embodiments as illustrated in FIGURES 8 to 11 but it always serves as a support during the firing as well as a sighting device.
- the gun-carrier A is constituted by a base plate 1 the lower surface of which comprises formations 2 intended to enter in contact with the ground and to provide a good support enabling the absorption of recoil.
- the upper surface of this plate is for example planar and comprises a threaded blind hole intended to receive the threaded lower end of the percussion and detent device B.
- a sighting member 3 is also xed on the upper surface of the plate 1.
- the gun-carrer forms a mobile support which can be orientated.
- the rifleman lays the base plate 1 on the ground and orientates it in the desired direction. Thanks to the formations 2 of the lower face of this base plate 1, it is able to transmit the recoil of the firing to the ground even if this plate 1 forms with the surface of the ground a pronounced angle.
- the gun-carrier A is constituted by a plate 4 the surface of which is adapted to receive the percussion and detent device B as well as the sighting member 3 as in the variant shown at FIG- URE 8. But the lower face of this plate 4 is provided with a point 5 intended to be driven in the ground.
- This variant constitutes thus a gun-carrier enabling firing several times successively without proceeding to a new sighting operation. In fact the orientation of the plate 4 and thus of the gun-carrier is fixed.
- the gun-carrier or resting and sighting device A constituted by the plates 1 and 4 of the variants of the gun-carrier shown at FIG- URES 8 and 10 is replaced by a sleeve 6 on one end of which the percussion and detent device B is threaded whereas its other end presents a blind hole enabling this sleeve to be slid over the free end 7 of a 4gun for example.
- the sleeve 6 described in reference to FIGURE 9 is fixed by means of fixing members 8 on a butt 9.
- This butt 9 constituting the gun-carrier A is provided with damping members 10 and 11 of synthetic or natural rubber for example in order to damp the recoil effect during the firing.
- This last variant of the gun-carrier for the propulsion device is particularly well adapted to short-range firing.
- the percussion and detent device B is fastened by its lower threaded end 12 on the gun-carrier A so as to be solid with it but still removable. In this way a same percussion and detent device B may be used according to the needs with anyone of the types of gun-carriers described above or of the existing gun-carriers.
- This percussion and detent device comprises a support 13 the lower threaded extremity 12 of which (FIG- URE 4) is fixed to the gun-carrier A and the upper part of which forms a chamber 15 the upper front end of which is open and gives passage to the lower part 16 of a sliding member 17 of this device B.
- This lower part 16 of the said sliding member 17 presents an outside diameter which corresponds to the diameter of the chamber 15 of the support 13 and a length which is equal to that of the chamber 15.
- This sliding member 17 slides without clearance inside the chamber of the support 13.
- the upper part 18 of this sliding member 17 presents a diameter which is greater at its lower part so as to form a shoulder 19 limiting the depth of introduction of the lower part 16 in the chamber 15 of the support 13.
- the bottom 20 of the lower part 16 of this sliding member is pierced by a hole 21 opening inside a first housing of small diameter 22 giving access itself to a second housing 23 of greater diameter and extending inside the greater part of the sliding member 17.
- This second housing 23 is limited upwardly by a wall 24 driven in the bottom of a hole 25 opening in the upper front face of the sliding member 17
- This wall 24 is pierced in its center and gives passage to a percussion pusher 26 the head 27 of which is located inside the hole 25 and is of greater diameter than the hole in the wall 24 whereas its tail traversing the said wall is provided with a piston 28 the diameter of which corresponds to that of the second housing 23 provided inside the sliding member 17.
- the length of the tail of the pertcussion pusher 26 is such that this pusher may effect axial displacements along the longitudinal axis of the percussion and detent device of the order of 2 to 7 mm. for example.
- a stopping rod 14 fixed rigidly to the support 13 and extending axially through the chamber 15 traverses the hole 21 of the sliding member 17 and extends coaxially inside the housings 22 and 23 of the lower part of this sliding member 17.
- the length of this stopping rod 14 is approximately equal to the sum of the lengths of the chamber 15 and of the part of the second housing 23 located inside the lower part 16 of the sliding member 17.
- the upper end of this stopping rod 14 presents an abutment 29 constituted in the example shown by a nut threaded on the upper threaded end of this stopping rod 14.
- a sleeve 30 slides freely inside the second housing 23 and presents a height approximately equal to the length of the part of this housing 22 located inside the lower part 16 of the sliding member 17.
- the outside diameter of this sleeve 30 corresponds to the diameter of the second housing 23 whereas the inside surface of said sleeve 30 comprises an annular stop 31 the upper face of which is intended to cooperate, during the loading of the percussion and detent device, with the lower face of the abutment 29 of the stopping rod 14 which extends through this sleeve 30.
- the percussion and detent device B comprises further a detent pivoted on the sliding member 17 and comprising a retaining finger 33 which, in loaded position, extends into the housing 23a sufiicient distance, defined by a dog 34 cooperating with the outside surface of the upper part 18 of the sliding member 17, in order to be located on the path of the sleeve 30.
- This detent comprises further a control member 35 and is subjected 4to the action of a spring 36 tending to maintain it in loaded position.
- the outside diameter of the supoprt 13 is equal to the outside diameter of the upper part 18 of the sliding member 17 so that when the percussion and detent device is either in loaded or in unloaded position the outside surface of this device B is smooth and does not present any projection other than the detent 32 itself. This is important for the security of the rifieman, who does not risk in any case being hurt by the recoil of the propulsion device at the time of the firing.
- the working of the percussion and detent device is the following:
- the user displaces the sliding member 17 in the direction of the arrow f (FIGURE 4) until the annular abutment 31 of the sleeve enters in contact with the abutment 29 and the spring 32 is sufficiently compressed and the upper edge of the said sleeve 30 moves under the finger 33 of the detent.
- This detent moves immediately angularly under the action of the spring 36 so that the finger 33 is disposed in the path of the upper edge of the sleeve 30.
- the angular displacement of the detent is limited by contact of the dog 34 with the outside sur-face of the sliding member 17.
- the displacement of the sliding member 17 in the direction of the arrow f is limited by the cooperation of the lower end of the sleeve 30 with the shoulder separating the first housing 22 from the second housing 23 of this member 17.
- the respective dimensions of the rod 14, of the sleeve 30 and of the lower part 16 of the member 17 are such that at the end of the stroke the lower part 16 of the member 17 is still engaged in the chamber 15 of the support on a distance adequate to ensure the guiding.
- the user displaces the sliding member 17 in the opposite direction to the arrow j to replace it in the position which it was occupying before, that is, the position shown in FIGURE 3.
- the sleeve 30 is driven through the iinger 33 of the detent against the action of the spring 32 until it reaches its lower position inside the second housing 23, which is itself disposed inside the chamber of the support 13.
- the percussion and detent device B is loaded and it suices, to cause the firing, to displace the control member 35 of the detent against the action of the spring 36 to lfree the sleeve 30 which displaces itself under the action of the spring 32 and comes in contact with the piston 28 causing the axial displacement of the percussion pusher 26 which causes then the firing of the launcher in a manner which will be described later on.
- the launching device comprises further a launcher C comprising an expansible explosion chamber, in the example shown, as well as a pushing device cooperating with the engine D to be launched and which may be constituted iby a grenade of any known type.
- This engine D comprises a head 37 housing an explosive charge or a charge of any other nature and a tail 38 provided with guiding ilyers 39.
- the tail 38 is hollowed and presents a cylindrical housing 40. It is :to be noted that these engines are of standard dimensions in respect of their tail in any case and that different heads 37 may be adapted to a same type of tail 38.
- the diameter of the hole opening on the frontal free face of the percussion and detent device presents a diameter identical to that of the cylindrical housing 40 provided in the tail of the engine to be launched.
- the launcher C has :the shape of a cylinder having a circular cross-section and an outside diameter corresponding to the inside diameter of the hole 25 as well as to that of the cylindrical housing 40.
- the lower end of the launcher C is located in ythe hole 25, whereas its upper end is located in the cylindrical housing 40 of the engine D.
- This launcher C is thus connected on the one hand to the projectile and on the other hand to the percussion and detent device by means of axially sliding couplings.
- the outside diameter of the launcher C is such that it slides freely, still being strictly guided, inside the hole 25 and the housing 40.
- the lower part of the launcher C comprises a ring chamber 41 the diameter of which corresponds lto that of a bullet or blank cartridge of a cartridge case 42 containing launching charge.
- This firing chamber 41 comprises a hole 43 connecting it to the outside of the launcher in traversing the lower bottom of it.
- the diameter of this hole 43 corresponds to the diameter of the head 27 of the percussion pusher 26, which in ring position, is located in the said hole and enters in contact with a percussion mass 44 the diameter of which corresponds to that of the tiring chamber 41.
- This percussion mass 44 presents on its face directed towards lthe cartridge case 42 a percussion projection 45.
- the firing chamber 41 intended to receive the cartridge case 42 opens in an explosion cham-ber 46 presenting a diameter greater than that of the firing chamber 41.
- These chambers 41 and 46 are separated by means of a piston 47 :the skirt 48 of which is intended to surround either the bottom of the cartridge case 42 (variant shown in FIGURE l), or the bullet 49 or the summit of a blank cartridge case 42 (variant Shown in FIGURE 3) depending on whether the cartridge case 42 is placed in the firing chamber 41 in one direction or in the other.
- the lower free .part of this skirt 48 of the piston 47 rests on the shoulder 50 separating the firing chamber 41 from the explosion chamber 46.
- the percussion is obtained by the introduction of the percussion projection 51 or 45 in the frontal face of the bottom of the cartridge case 42.
- the distance separating the two percussion projections 51 and 45, when the percussion mass 44 rests on the bottom of the firing chamber 41 and the lower edge of the skirt 48 of the piston 47 rests on the shoulder 50, is ygreater than the length of a blank or bullet cartridge case 42, so that any unwanted displacement of the piston 47 can in no case cause the percussion and thus the iiring.
- the mass 44 being of very light weight and being able to move a very short way only, it can in no case, even under the action of violent shocks to which the launcher C could be subjected, cause the percussion of the cartridge case 42 and the tiring of the launching explosive charge.
- the upper end of the launcher C is o'bturated by means of a threaded plug 52 pierced by a hole 53 coaxial with the launcher C.
- the diameter of this hole 53 corresponds to the diameter of a pushing rod 54, the lower end of which presents a tapered chamfer intended to receive the upper surface of the piston 47, whereas the upper end emerges slightly outside the launcher through the plu-g 52 and presents a frontal tapered surface cooperating with the bottom of a blind hole provided in a pushing member 55 the frontal surface of which rests against the bottom 56 of the tail of the engine D whereas its diameter corresponds to that of the cylindrical housing 40 of this tail.
- This pushing member 55 is intended to avoid that the pushing rod 54 penetrate the engine D during the firing.
- the launcher is reloadable; it suces in fact after the firing to unscrew the plug 52 which is threaded and to replace the charge.
- the plug 52 could be driven in under heat or not in the body of the launcher which, in that case, could not be reloaded.
- the plug 52 is omitted, in this manner the explosive charge, the piston and the rod are ejected out of the launcher during the firing, even so these parts are independent from the projectile to be launched.
- the launching device is no more silient, the explosion and expansible chamber being no more closed, but on the other hand the reloading of the launcher is extremely rapidly effected.
- the piston could form itself the projectile to be launched.
- the cartridge case is completely housed inside the piston.
- This piston may in a variant be solid with the pushing rod 54 which is then connected through a sliding coupling to the projectile.
- the cartirdge case 42 comprises a special bottom 57, which constitutes directly the piston separating the iirinfg chamber 41 from the eX- plosion chamber 46.
- This bottom 57 comprises a thick wall the diameter of which corresponds to that of the explosion chamber 46 and the lower part of which cooperates with the shoulder 50 separating the chambers 41 and 46.
- the percussion projection 51 is carried by the lower frontal face of the pushing rod 54.
- a washer 58 of a supple material can be interposed between the frontal face of the bottom 57 and the percussion projection 51 to avoid any unwanted tiring.
- the operation of the engines launching device is the following:
- the -user proceeds in the above described manner, to the loading of the percussion and detent device B, through a reciprocal movement of the sliding member 17.
- the user causes the firing by displacing the control member 35 of the detent against the action of the return spring 36.
- This has for effect to withdraw the linger 33 of the detent out of the way of the sleeve 30, which, from then on, displaces itself under the action of its spring 32 in the direction of the piston 28 of the percussion pusher 26.
- this sleeve 30, thrown very quickly under the action of the spring 32 reaches the piston 28, it causes a rapid and vigorous displacement of the percussion pusher -in the direction of the launcher C.
- the cartridge case 42 containing the explosive charge as well as the piston 47, or, in certain cases, the special bottom 57 of the said cartridge case, are maintained in their location under the action of the weight of the engine D so that the firing can be effected under the action of the axial displacement of the percussion pusher 26.
- the explosive charge of the cartridge case 42 is thus tired, which causes an explosion. Gases liberated by this explosion push violently the piston 47 or the bottom 57 towards the upper extremity of the explosion chamber 46.
- This piston ⁇ 47 drives thus in its displacement the pushing rod 54 as well as the pushing member 55 and through their intermediary, the engine D.
- the explosion is effected in a closed chamber and lis extremely violent and the engine is launched at initial speeds very high, which permits the obtention of great ranges.
- the launching itself of the engine D causes the eject-ion of the launcher C from the housing 40 of the tail 38 of the engine, due to the ejection of the pushing rod 54 from the launcher.
- the only dead weight which is accelerated is that of the pushing device Ipartially housed inside the launcher and formed by the pushing rod 54 and by the pushing member 55 which, according to the clearance between this pushing member 55 and the housing 40 of the engine D, falls down to the bottom or on the contrary is taken with, through suction effect, the engine D a short distance 'before falling.
- the launcher C itself and thus the launching charge is in no case taken with the engine in its trajectory.
- Tests have also been made with launching charges of 3.2 grammes of powder, that is with cartridges of the NATO, and, always for a firing at 45 and a grenade of a weight of 570 grammes, a distance of 1100 meters has been reached.
- the ranges reached are of 600 meters to 1000 meters according to the explosive charge used.
- Another advantage of the described device resides in the tiring speed.
- the launcher C being simply placed on the percussion and detent device, it is extremely quickly taken out and replaced or ejected during the tiring, so as to be ready to receive a new charge.
- the launcher C is even automatically ejected by the inertia effect of the piston 47 arriving at the end of its stroke and/or by the suction effect during the ejection of the launcher C from the tail 38 of the engine to be launched.
- the automatic ejection of the launcher C has been obtained consistently. It sufces thus to the rieman, to place a new launcher, onto which an engine has been previously slid, on the percussion and detent device B and to reload it in order to be able to effect a new tiring.
- the launcher could present an upper opening of a diameter equal to that of the explosion chamber 46.
- the launcher is used as a conventional gun with the advantage that the launching charge 42 is ejected at the firing which enables a rapid and even instantaneous reloading of the launcher C. In this case, the launcher remains on the gun-carrier.
- the loading of the percussion and detent device B is extremely rapid since it requires only a simple reciprocal movement.
- the user when the user is trained, or if a special device is provided to this end, he may release the detent sufficiently rapidly in order to obtain an automatic reloading of the percussion and dentent device B.
- the percussion pusher under the effect of the explosion of the launching charge, the percussion pusher is violently rejected backwards, which causes the violent recoil of the sleeve 30 against the action of its spring 32.
- the detent is released in time, thus subjected to the action of its return spring 36, that is before the sleeve reaches its extreme backward position, it comes to lock itself in loaded position under the nger 33 of the detent. This enables to further accelerate the tiring, which may be of the greatest importance.
- This additional charge can be placed between the bottom 56 of the engine D and the pushing member 55, the frontal face of which would present in such a variant a percussion projection.
- the axial displacement of the pushing rod 54 and of the pushing member 55 causes the percussion and the ring of the ⁇ additional charge. Thanks to the adjunction of this Iadditional charge, it is possible, without modification of the launching device, to increase its efficiency 20 to 40%. It is however to be noted that in this case, the arm is no longer absolutely silent, since this additional charge explodes in an open chamber, which is t-he cylindrical housing 40 of the tail 38 of the engine D.
- the pushing rod 54 could be fast with the pushing member 55 and this assembly could be either taken with the engine D during its launching or maintained with the launcher C.
- the pushing rod could be realized by a staggering of washers or of parts of low dimensions.
- this rod could be constituted by a tube or even by a liquid column.
- the piston 47 could be fast with the rod 54. It is even possible to give the lower extremity of this rod -54 a shape enabling to realize the function of the piston 47.
- the lower end of the rod 54 could be made in a manner to constitute the bottom 57 of the cartridge case 42 containing the launching charge.
- Such a variant enables an instantaneous reloading of the launcher, in fact after the firing, it sufces to introduce in this launcher a new rod 54 the lower end of which contains the launching charge and constitutes simultaneously a piston.
- This reloading operation can be effected during the setting in place of a new engine to be launched if the rod 54 is fixed to this engine.
- This variant is particularly advantageous, since it permits a greater eiciency due to the fact that the rod, lixed to the engine, is directly or indirectly in contact with the propulsive charge.
- the launching charge is connected to the engine on the one hand and to the gun-carrier on the other hand by means of sliding couplings and the automatic separation of this launching charge from the engine and the gun-carrier is obtained during the firing.
- the percussion and detent device could be diiferently constituted if it permits the firing.
- the percussion could be initiated by the impact of a projectile for example by a gun-bullet in the case where the launching device would be iixed on the end of a gun, the recoil reaction of the launching charge absorbing the kinetic energy of the bullet.
- This percussion may also be obtained by the pressure of gases or by an electro-kinetic process or by an electric firing.
- cm.2 realized inside the explosion chamber. It is to be noted here that this explosion chamber can support these high pressures only during a very short time interval without deformation. However, at time of the explosion, the launcher is practically completely surrounded by the percussion and detent device, as well as by the tail of the grenade D, which gives an additional security for the user.
- Any types of engines, in particular of grendaes, may be launched with this launching device, such as for example anti-hail projectiles, projectiles for under-water fishing, perforating engines, compression engines, pneumatic motors, cannon projectiles and so on.
- a projectile launching device comprising a percussion device, alauncher having an explosion chamber for receiving an explosive charge, the percussion device having means for exploding a said explosive charge in the launcher, the percussion device having a cylindrical recess in its forward end, the launcher having a cylindrical outer contour at its rear end that freely but closely slidably ts in said cylindrical recess so that the side walls of said cylindrical recess encompass and outwardly confine the side walls of a portion of said explosion chamber, a piston slidable forwardly in said explosion charnber to apply the force of a said explosion to a said projectile, and means for limiting the forward motion of said piston in said chamber and for sealing the chamber against the escape of gases about said piston.
- a device as claimed in claim 1 said explosion chamber having a portion of relatively large inside diameter and a portion of relatively small inside diameter, said piston being reciprocable in said portion of relatively large diameter, the side walls of said explosion chamber having a forwardly directed annular abutment shoulder between said portions of the explosion chamber, said abutment shoulder limiting rearward movement of said piston.
- a device as claimed in claim 1 and a push rod extending forwardly from said piston and being slidably mounted in the forward wall of said explosion chamber for applying the force of a said explosion to a said projectile.
- a projectile launching device comprising a precussion device, a launcher having an explosion chamber for receiving an explosive charge, the percussion device having means for exploding a said explosive charge in the launcher, the'percussion device having a cylindrical recess in its forward end, the launcher having a cylindrical outer contour at its rear end that freely but closely slidably fits in said cylindrical recess so that the side walls of said'cylindrical recess encompass and outwardly confine the side walls of a portion of said explosion chamber, said percussion device having a sleeve mounted for axial sliding movement thereon, a detent carried by said sleeve, means yieldably urging said detent toward a position in which it projects into the interior of the sleeve,
- said cocking device comprising a stationary rod coaxial with said sleeve, said slida'ble member comprising a second sleeve coaxial with said stationary rod.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Toys (AREA)
- Portable Nailing Machines And Staplers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1462865A CH450228A (fr) | 1965-10-22 | 1965-10-22 | Dispositif de lancement d'un projectile |
Publications (1)
Publication Number | Publication Date |
---|---|
US3416402A true US3416402A (en) | 1968-12-17 |
Family
ID=4402466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US586721A Expired - Lifetime US3416402A (en) | 1965-10-22 | 1966-10-14 | Engine launching device |
Country Status (6)
Country | Link |
---|---|
US (1) | US3416402A (en:Method) |
BE (1) | BE688628A (en:Method) |
CH (1) | CH450228A (en:Method) |
DE (1) | DE1553866C3 (en:Method) |
FR (1) | FR1501111A (en:Method) |
GB (1) | GB1165921A (en:Method) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570365A (en) * | 1968-04-11 | 1971-03-16 | Transurvey Holding Co Inc Sa | Ballistic device comprising a projectile and its launcher |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2461920A1 (fr) * | 1979-07-18 | 1981-02-06 | Matra | Cartouche comportant une charge militaire et dispositif lanceur de charge en faisant application |
IT1216479B (it) * | 1988-02-29 | 1990-03-08 | Socimi | Lanciagranate leggero di tipo perfezionato. |
IT1216478B (it) * | 1988-02-29 | 1990-03-08 | Socimi | Lanciagranate di tipo leggero a percussione inversa. |
IT213994Z2 (it) * | 1988-03-31 | 1990-03-05 | Socimi | Lanciagranate leggero a percussione diretta. |
RU2198375C2 (ru) * | 2001-01-11 | 2003-02-10 | Войсковая часть 44239 | Выстрел с малым демаскирующим действием |
DE102008009638B3 (de) * | 2008-02-18 | 2009-09-03 | Lfk-Lenkflugkörpersysteme Gmbh | Werfer mit mindestens einem Startrohr für raketengetriebene Flugkörper |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2481546A (en) * | 1945-05-07 | 1949-09-13 | Walker Brooks | Projectile launcher |
US2499379A (en) * | 1944-12-26 | 1950-03-07 | Garrett Emil | Grenade thrower |
US3120151A (en) * | 1961-07-03 | 1964-02-04 | Hotchkiss Brandt | Ejectable tail unit for the propelling launching charge of a projectile which is loaded through the muzzle of the firing means |
US3134330A (en) * | 1961-07-20 | 1964-05-26 | Energa | Projectile |
US3306163A (en) * | 1964-05-12 | 1967-02-28 | Transurvey Holding Company Inc | Projectile firing device |
-
1965
- 1965-10-22 CH CH1462865A patent/CH450228A/fr unknown
-
1966
- 1966-10-14 US US586721A patent/US3416402A/en not_active Expired - Lifetime
- 1966-10-14 FR FR79961A patent/FR1501111A/fr not_active Expired
- 1966-10-17 GB GB46241/66A patent/GB1165921A/en not_active Expired
- 1966-10-21 BE BE688628D patent/BE688628A/xx not_active IP Right Cessation
- 1966-10-21 DE DE1553866A patent/DE1553866C3/de not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2499379A (en) * | 1944-12-26 | 1950-03-07 | Garrett Emil | Grenade thrower |
US2481546A (en) * | 1945-05-07 | 1949-09-13 | Walker Brooks | Projectile launcher |
US3120151A (en) * | 1961-07-03 | 1964-02-04 | Hotchkiss Brandt | Ejectable tail unit for the propelling launching charge of a projectile which is loaded through the muzzle of the firing means |
US3134330A (en) * | 1961-07-20 | 1964-05-26 | Energa | Projectile |
US3306163A (en) * | 1964-05-12 | 1967-02-28 | Transurvey Holding Company Inc | Projectile firing device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570365A (en) * | 1968-04-11 | 1971-03-16 | Transurvey Holding Co Inc Sa | Ballistic device comprising a projectile and its launcher |
Also Published As
Publication number | Publication date |
---|---|
DE1553866B2 (de) | 1974-09-26 |
DE1553866C3 (de) | 1975-05-15 |
GB1165921A (en) | 1969-10-01 |
BE688628A (en:Method) | 1967-04-21 |
FR1501111A (fr) | 1967-11-10 |
DE1553866A1 (de) | 1970-11-26 |
CH450228A (fr) | 1968-01-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3837107A (en) | Silent launch gun for projectiles | |
US5016536A (en) | Non-lethal practice round for automatic and semiautomatic firearms | |
US5677505A (en) | Reduced energy cartridge | |
US3738219A (en) | Recoilless firearm and cartridge therefor | |
US4154012A (en) | Expendable launcher for non-lethal ring airfoil projectile | |
US4531458A (en) | Compressed gas powered ammunition for small arms | |
US3919799A (en) | Grenade launcher and annular cartridge therefor | |
US4715139A (en) | Closed breech muzzle loader and loading tool | |
US3386381A (en) | Hypodermic projectile | |
US3169333A (en) | Projectile for firing a leakproof caseless round | |
US3981093A (en) | Gas operated launcher | |
US2415803A (en) | Cartridge | |
US3416402A (en) | Engine launching device | |
US2939449A (en) | Launching device and rocket propelled missile therefor | |
US3274936A (en) | Explosive spearhead | |
US4038903A (en) | Two stage telescoped launcher | |
US7617758B2 (en) | Firing device | |
US5129325A (en) | Ejector device for grenade projector or mortar projectiles for simulating firing | |
GB1601917A (en) | Ammunition for small arms | |
US4895064A (en) | Machine-pistol for cartridges of different types | |
US2654318A (en) | Subcaliber adapter | |
US3044363A (en) | Propulsion means for projectiles | |
US3404478A (en) | Semiautomatic grenade launcher | |
US2777391A (en) | Jet dart | |
US3306163A (en) | Projectile firing device |