IL32071A - Container for a target and target for shooting practice to be towed by an aircraft - Google Patents

Description

CONT INER FOB A TARGET A HP GET FOR SHOOTING PRACTICE TO BE BY AK AIRCRAFT The present invention relates to a new industrial product constituted by a device destined to be fixed below the wings of an aeroplane for transport in space and being adapted to be deployed and towed at a determined as well as to a target being adapted to serve for practice both shooting to and to and to be recovered after the Such a device is essentially characterized in that it is constituted of a container closed in front by a hood and having two superposed compartments delimited by a longitudinal The upper compartment comprises a removable plate which supports a supple towing conveniently coiled and means for preventing the untimely coiling while the lower compartment is divided into two juxtaposed One o these quarters receives a target panel provided with an elective explosive controlled This target is attached to one of the ends of the above mentioned towing The second compartment can receive in certain cases a preferably made of on an appropriate and connected to the other end of said towing In front of the container is disposed a plate for electric connections permitting to fire from the seat explosive bolts or other necessary contrivances for the unwinding of the towing for the the deployment and the expansion of the target One embodiment of the invention will now be described for better understanding in detail and by way of example with reference to the attached showing perspective view of the with some parts a view of a detail of the electric switch for firing the explosive bolt which bilizes the target a perspective view showing the coiling of the towing a side view of a part of the target panel a perspective with parts showing the manner in which the target is fixed to its a view in showing constituting a which can be used tageousl to assure the expansion of the target ready to be on the of a a view of the device shown in mounted and ready for a view of the device for uncoiling the towing a view of a device destined to in case a towing cable composed of two elements is the ends of these two the container according to the invention installed on an the start of the uncoiling of the cable the mounting of the rope cutter of the target a schematic view of the deployment of the target the target panel after drawn by the the operation of the expansion of the target according to the invention denoted in the drawing as a whole by the numeral its removable hood by la and its two superposed compartments by 2 and partition limiting these two comprises on its longitudinal edges two slide rails 5 and on which is slidingly mounted a plate This partition is extended in front by a board supporting various elements of an electric circuit connected to the as well as a switch 9 for firing an explosive holt destined to the ejection of the target panel later Plate 7 is made integral with partition by means of an intermediate fixed to the partition by a floating nut 13 Each end of the plate 7 is pierced by a coarse of orifices 10 destined to receive the teeth of a of the supple towing The mentary orifices provided on the extreme rear end of the permit to draw the plate out from compartment 2 by manual Along the longitudinal edges of the plate two assemblies are destined for fixing a series of canvasses whose edges are provided with reinforced by canvasses are garnished with elastic bands and their function is to render independent from each other the superposed layers of a supple towing cable coiled above in a manner described and to prevent their entanglement during their lower compartment of the container comprises on the one hand an emplacement 17 destined to receive the target panel and on the other hand a lateral holding space 18 receiving a 19 on can be coiled longitudinally an intermediate cable preferably made of fixed at point 21 of the aeroplane Cable 20 is fixed by appropriate mean 22 to the supple cable 16 which is ferably made of synthetic known as It is provided with a device for preventing constituted of a 23 enclosed in a casing 25 by means of a shutter The spool is rotatably mounted on an axle to the lower part of said The shutter is maintained in closed position by an explosive bolt 24 and The supple cable 16 is coiled on plate 7 in the following After having placed in holes 10 the teeth of the rack of the carriage mentioned the canvasses 14 are fixed on one of the sides of plate 7 by meane of screws and nuts provided for this Then the cable is alternately ed around the teeth of the racks to constitute the Thereafter the canvas 14 is pulled down and fixed to the other edge of the the same operation is repeated for forming the following layers of the Once the coiling is the teeth of the racks are withdrawn and the two ends of the cable are left to hang It may be observed that the elastic bands 15 of canvasses 14 assure tight assembly of the layers of the The target panel 26 consists of a rectangularly shaped preferably made of whose meshes are of the type to limit the deterioration of the network when a hole is made therein by passage of a The edge attack of the target panel comprises a constituted of a rigid tube 27 made for example of glass To one of the ends of this tube is screwed an explosive bolt and fixed a mass which assures the stability in vertical Static radar sensitive devices 29 are lodged in the interior of tube These sensitive devices permit radar reception by increase of the visible surface of the On 27 is fastened a rope assembly by means of clamps composed for example of six straps 30 whose ends are These straps are fixed to a metallic ring 31 to which the free end of supple cable 16 is The so constructed target panel is connected to a starte amounted on one side of the towing ing aeroplane 5 and A casing 33 two spring mounted shutters is fixed to this In the interior of this casing is lodged a parachute 35 compressed by a spiral spring To position the target panel in its housing 3 it is necessary to fold This can done or preferably by folds shown in In the latter after having fixed the 42 of supple to ring of straps the target is folded longitudinally in the center of its length in such a that the rear end comes into contact with the stem This operation is until the folding has a width of about Thereafter this width of the target is rolled around the stem 27 and the whole target tightened by means of the straps Then a rope and a pyrotechnical rope cutter is placed on the assembled The rope is constituted of a strap 39 which passes through the towing ring 31 tightens the target The rope denoted as a whole by 12 consists of a 37 of the type for ignition by which after a delay of some seconds ignites a detonator 38 having a hollow load crossed by a strap 39 which latter is thereby The firing of the assembly is obtained with the aid of an igniter whose pull string 40 is fixed to a part of the The so constructed rope cutter is preferably on a plate 41 safeguarding the target panel The container 1 according to the invention is provided with an expansible grip 47 and means 46 being rigidly below the wings of an aeroplane equipped with bomb This container is prepared in the following After fixing the container rigidly below the wings of the 9 and its grip 47 is connected to the electric connecter of the bomb The supporting plate being equipped with the supple cable coiled in the above described manner is introduced into compartment 2 b sliding it on slide rails 5 and 6 and is immobilized on angle piece 4a by means of nuts Thereafter a traction is exerted on end 16a of cable 16 to disengage thereof a length of about On the third layer of the coiled for is a bolting device of the electric contact assuring the firing of explosive elective bolt which the target panel Then one of the ends of the steel cable 20 is fixed to the starter 34 5 and the spool 23 for preventing uncoiling is placed on cable Cable 20 is then coiled on bar 19 which is introduced into its lodging where it immobilized by a The target prepared in the manner shown in 11 is fixed to the end 16a of cable 16 by tt e cou in 1 Pull string 40 of the igniter of the technic rope cutter is stowed on support 43 of explosive bolt 9a and The spool preventing uncoiling of steel cable is immobilized in its lodgings by means of an explosive bolt and the free end of cable 20 is connected to a loop 16b by a shackle 22 which is to the of the Then the folded target panel is inserted into its emplacement 17 according to 11 the explosive bolt is screwed on the threaded end of stem 27 which has been placed into a provided in a support 43 situated at the front end of said lodging Now the electric circuits have to be tested and the explosive bolts to be The operation of the so prepared device is as When the aeroplane arrives at the zone of the pilot switches on the electric circuit of explosive bolt The spool 23 is thereby freed and by aerodynamic effect the towing cable 16 is uncoiled from the At 150 from the end of the the bolting device of contact 9 is entrained by cable contact olosee electric circuit of explosive bolt which provokes the ejection of the target panel and the automatic function of The target still in folded freed and falls immediately by free When it arrives a the end of its trajector tically in about 10 seconds after its the incorporated in the fires the hollow charge of detonator The strap 39 is broken and the target panel expands and by action of the counterweight 28 assumes automatically a vertical After the the target panel is released by the pilot by electrical or mechanical unbolting of the starter mounted on the It will be understood that the hereabove described embodiment of the invention has no limitative character and may undergo all desirable within the scope of the insufficientOCRQuality

Claims (5)

WHAT IS CLAIMED IS:

1. Target practice device destined to be fixed below the wings of an aeroplane, comprising a container closed in front by a removable hood and having two superposed compartments, delimited by a longitudinal partition, the upper compartment comprising a removable plate supporting a supple towing cable, conveniently coiled, the lower compartment being divided into two juxtaposed emplacements, one of these being adapted to in folded state receive a target panel/provided with an ejective, explosive, electrically controlled device* attached to one of the ends of the above mentioned supple towing cablet

2. A device as claimed in Claim 1, characterized thereby that in the second emplacement is placed a steel cable, coiled on an appropriate support and connected to the other end of said supple towing cable, this steel oable being provided with means destined to prevent its untimely uncoiling and consequently the uncoiling of the supple cable to which is is connected.

3. 5. A device as claimed in Claim 1, characterized thereby that the supple cable is directl connected to the towing aeroplane and the spool, preventing the uncoiling, is mounted on the supple cable*

4. A device as claimed in Claim 1, characterized thereby that in front of the container is disposed a board for electric connections, permitting to fire from the pilot's post explosiv bolts or other contrivances* necessary for the uncoiling of the supple towing cable at the ejection, deployment and expansion of the target panel*

5. A device as claimed in any of preceding claims, characterized thereby that the target panel is constituted of a rectangularly shaped network, pre* ferably made of Hylon, whose meshes are of the self-locking type. COHEN ZEDEK AND SPISBACH P.O. Box 1169 Tel Aviv Attorneys for Applicants