Патент USA US2128839код для вставки
Aug. 3o, 193s. DEVICE N. E. METHLIN 2,128,839 FOR OPERATING LAND MINES AND THE LIKE BY THE PASSAGE OF TANKS OR OTHER VEHICLES Filed NOV. 24, 1936 2 Sheets-Sheet l Aug. 30, 1938. N, E. METHLIN 2,128,839 DEVICE FOR OPERATING LAND MINES AND THE LIKE BY THE PASSAGE OF TANKS OR OTHER VEHICLES Filed Nov. 24, 1936 . v 2 Sheets--Shee'fI 2 Eig. 3. 22 23 Z2 Z3 y. Z s .5, 2.5%, Patented Aug. 3o, 1938 2,128,839 UNITED STATES PATENT OFFICE 2,128,839 DEVICE FOR OPERATING LAND MINES AND THE LIKE BY THE PASSAGE 0F TANKS OB, OTHER VEHICLES Nicolas Emilien Methlin, Paris, France, assigner to Schneider & Cle, Paris, France, a joint-stock company of France Application'Novenìber 24, 1936, serial No. 112,600 In France January 21, 1936 8 Claims. (Cl. 102-2) 'I‘he present invention relates to devices for the protection of the ground of military operations, particularly against tanks or other like vehicles, and which comprise in the known manner, a cer tain number of mines or other like appliances suitably distributed or dispersed over the ground, and the firing mechanisms of which are associ ated with control members intended to bring about the operation of the said explosive ap pliances at the moment the tanks or other like vehicles pass over the said members. The present invention relates more particu larly to the special members for controlling the ñring of such appliances, the said members be ing substantially constituted, for each appliance or for a couple of appliances, by a sheathed cable forming a iiexible unit which is disposed on or lightly buried on the ground and the sheath of 20 which is constructed so as to be capable of elon gation under the effect of a deformation` the con nection between the cable and the movable mem ber of the tiring mechanism being such that mere deformation -of the sheathed cable, at the moment of the passage of a load of predetermined magni 25 tude. produces an elongation of the sheath, re sulting in a pull being exerted on the cable, which ñnally brings about the operation of the mecha nism or mechanisms to which the latter is con nected. soV The accompanying drawings show by way of example various embodiments of the invention. Figure 1 is a longitudinal section oi’ a first form of construction of the sheathed cabled sys tem according to the invention. Figure 2 shows the same device deformed under the eil’ect of the passage of a vehicle and hence producing a pull, causing the explosion of a corresponding ap pliance. Figure 3 shows in longitudinal section a modiiication of the sheathed cable system of 40 the present invention together with one form oi’ iiring mechanism to which the system may be connected. Figure 4 is a diagrammatic view illus trating the action of a wheel or endless track of a tank in passing over ground protected by explo 45 sive devices embodying the present invention.' Figure 5 is a view. partially in longitudinal sec 13 and 14 are longitudinal sectional views of vari ous modiiications of the sheathed cable by means of which the iiring mechanisms of explosive de vices may be operated in accordance with the present invention. In the example of Figures 1 and 2, the sheath is constituted by a certain number of sleeves I threaded on the flexible but non-extensible .cable 2, the end 3 of which is secured to a shoulder 4 forming a stop for the corresponding end sleeve 10 of the sheath. Under the effect of the deforma tiony of the system. during the passage of a ve hicle of a sufllcient predetermined load, the mem bers assume a position such as that indicated in Figure 2, the deformation of the sheath produc ing an elongation due to the separation of its ele ments, the said elongation causing the end of the cable connected to the movable element of the iiring mechanism to move from 5 to 5'.As illustrative of the manner in which the zo sheathed cable system of Figures 1 and 2 may be operatively connected to the ñring mechanism of ’ an explosive appliance, reference may be had to Figure 3. As shown therein the iiring mecha nism is constructed in the form of a fuse screwed to the appliance and comprises a fuse body in two parts 6 and 'I connected by screwing together. 8 is a iixed percussion cap. 9 is the movable striker, ñtting by means of a sleeve I 0 in a striker support Il, Ato which it is fixed by means of a 30 pin I2. The striker 9 also comprises a flange I3 _bearing against a shoulder Il on the element 'I of 'the fuse body. Compressed between the edge of the rear tubu lar part of the striker 9 and the closed end of 85 the tubular striker support II is a spring I5 which, by expanding when the pin I2 is broken under the eiïect of the pull exerted on the cable 2, drives the striker 9 violently against the per cussion cap 8. ' The end 5 of the cable 2 is ñxed to the striker support I I, for example, by means of an expanded part 5a. 'I‘he end I’ of the sheath I is supported in the base of a recess I6 in the element 1 of the fuse 45 body. If, due to a deformation of the sheath I, tion, illustrating the application of the invention the pull exerted on the cable 2 is‘suilicient to rup to a pair of explosive devices. Figure 6 is a view, ture the pin I2, the striker supported on the fuse also partially in longitudinal section, illustrating 1 body is separated from the striker support and one mode of connecting a common operating is driven by the _spring I 5 towards the percussion cable to a plurality of explosive -devices. Figures 7, 8, 9 and 10 are diagrammatic illustrations of a number of different arrangements which may 55 be adapted for protecting a piece of ground by means of the present invention. Figures 11, 12, cap. , Figure 4 shows diagrammatically the action of a wheel or endless ,track I'I of a tank by its pas sage over the cable-sheath system connected to the firing mechanism of the mine I8. 2 2,128,839 Figure 5 shows the application -of the invention to a couple of mines or like appliances, at which the ends of one and the same sheathed cable taining pin) results in the operation of the ñr terminate. As shown in Figure 6, it is possible to make ing mechanism. Of course, various other forms of construction could likewise be produced in a plurality of appliances dependent upon a com which the deformation would produce, on the mon sheathed cable (I, >2). Thus, each end of part of the cable, a push capable of causing the the common cable 2 may be opened out into two said firing mechanism to operate; It will also be obvious that in all of the embodiments of the invention illustrated, with the exception of that or more sheathed elements, an intermediate sup 10 porting part o'r coupling member I9 being inter yposed between the sheath I and the sheaths of the said opened out portions to serve'both as a support for the ends of the sheaths and as-a guide for the cables. It will be appreciated at 15 once that the deformation of the common sheath I produces the simultaneous operation of the ñr ing mechanisms 1’ and 1”, the cable 2, the-> sheath I of which abutting against the part I9 has been deformed, transmitting in fact its force 20 to the’two cables 2’ and 2”, connected respec tively to the said mechanism 1’ and l". Figures 7, 8, 9 and 10 show diagrammatically _ a certain number of arrangements which may be adopted for protecting a piece of ground by 25 means of the device according to the invention. In these figures, the reference numerals denote the same members as in the preceding figures. In the right hand part> of Figure 9 the numerals 4 denote points common to two independent con l30 trols at which the cable and sheath are con nected together. Finally, Figures 11, 12, 13 and 14 represent constructional modifications of the sheathed cable by means of which the ñring mechanism 35 of the mines or other protective appliances are released. In the form _of construction shown in Figure 11, the sheath is constituted by a series of spherical beads 20, all of the same size. 40 cable, which in its turn, indirectly, through the medium of a. release device (fracture of the re g In the form of construction according to Fig of Figure 5 wherein-two mines or other explosive appliances are connected by the same sheathed cable, the ends 3 of the cables which are con nected to the shoulders ß of the sheaths are either anchored in any` suitable way or otherwise offer at least as great resistance to movement as is offered to the movement of the ends 5 which are connected to the firing mechanisms. Finally, it is also possible to consider the case in which the cable itself is rigidly connected to the device, 20 while the sheath itself at the moment» of its de formation would act on the firing mechanism, any person skilled in the art being capable of conceiving without any difficulty the detailed ar rangements necessary for carrying into effect any 25 of these various alternatives. What is claimed is: 1. An explosive device of the type adapted to A lie on or to be buried in the ground and exploded by the passage of a tank or other vehicle over 30 the ground to be protected, comprising a firing mechanism having fixed and movable elements, a cable and a sheath surrounding said cable adapted to lie on or just below the surface of the ground, said sheath being so constructed and 35 arranged as to elongate when deformed in any portion of its length and having one end ñxed relatively to the corresponding end of _said cable, the opposite ends of said sheath and cable being connected to said fixed and movable elements, 40 ure 12, a certain number of large beads 2l, respectively, of the firing mechanism of the ex ZI', . . . are separated from each other by a plosive device, whereby deformation of the sheath and cable produced by the passage of a vehicle thereover results in operation of said ñring mechanism. 2. An explosive device of the type adapted to plurality of beads 20 of a smaller diameter, this arrangement being intended to facilitate the de 45 formation and elongation of the sheath for the reason that the large beads are driven more deeply into the ground than the small beads, and before the latter, thereby producing a bending and hence an elongation of the section of sheath 50 comprised between two neighbouring large beads. In the form of construction shown in Figure 13,- a certain number of cylindrical sleeves 22, 23 of different diameters have been associated together. These sleeves, instead of terminating lie on or to be buried in the ground and exploded by the passage of a tank or other vehicle over the ground to be protected, comprising a -ñring mechanism having ñxed and movable elements, 50 and a sheathed cable adapted to lie on or just below the surface of the ground consisting of a non-extensible cable and an extensible sheath therearound, one end of said sheath being ñxed relatively to the corresponding end of said cable, the opposite ends of said sheath and cable being associated either with adjacent concave ends or connected to said fixed and movable elements, with convex ends, so as to prevent the cable in- - respectively, of the firing mechanism of the ex curring the risk of being damaged by shearing at plosive device, whereby deformation of the sheath 60 the moment of the deformation of the device. As and cable in any portion of its length by the 60. shown in the right hand part of Figure 13, the passage of a vehicle thereover produces a move 55 in faces perpendicular to their axis or convex at -both their ends„are provided with concave ends ends of the sleeves may likewise be ñtted into one another over a slight depth and with suñîcient play to allow the desired amount of bending to take place. In the form'of construction shown in Figure 14, the sheath is constituted by a kind of tube formed by a helical spring having its turns touching each other, the eventual elongation of which results directly from its being crushed. In the particular form of construction de scribed with reference to Figure 3 of the accom panying drawings, provision has been made for the deformation of the sheath at the moment 75 of the passage of a tank, to produce a pull on the ment of the last named end of said cable sufficient . to effect the operation of said firing mechanism. 3. An exploding device according to claim 2 wherein said extensible sheath is constituted by a plurality of separately formed elements of dif ferent diameters threaded on said .cable and in normally contacting relation with one another. 4. An exploding device according to claim 2 wherein said extensible sheath is constituted by 70 a plurality of separately formed beads of diifer ent sizes threaded on said cable in normally contacting relation with one another, each two of the larger beads being separated by a plurality of smaller beads. ’ 75 1 3 2,128,839 5. A common operating means for the firing mechanisms of a plurality of explosive devices of the character described comprising a non extensible cable having a main portion and a plurality of branch portions extending from said main portion to the firing mechanisms of said plurality of explosive devices. a separate section of extensible sheathing surrounding each of said main and branch cable portions, and a coupling 10 member located at each junction between said main and branch cable portions and so con structed and arranged as to both guide said cable portions and support the ends of said sheathing sections, the end of each of said branch cable 15 portions and the corresponding end of the sur rounding section of sheathing being so connected . to the ñring mechanism of the associated explo sive device that relative movement therebetween caused by cable and sheathing deformation re 20 sults in operation of said ñring mechanism. 6. A common operating means for the ñring mechanisms of a plurality of explosive devices of the character described comprising a non extensible cable having a main portion and a plurality of branch portions extending from one end thereof to the firing mechanisms of said plurality of explosive devices, a section of extensi ble sheathing surrounding said main cable por tion and having one end fixed relatively to the end of the cable opposite to its branched end, a separate section of extensible sheathing sur rounding each of said branch cable portions, and a coupling member located at the junction be tween said main and branch cable portions and so constructed and arranged as to both guide said cable portions and support the ends of said sheathing sections, the end of each of said branch cable portions and the corresponding end of the surrounding section of sheathing being so con nected to the ñrlng mechanism of the associated 40 explosive device that relative movement there between caused by cable and sheathing deforma tion results in operation of said firing mechanism. 7. Apparatus of the character described for protecting the ground of military operations com prising a plurality gf explosive devices adapted to lie on or to be buried in the ground at sepa rated points and including firing mechanisms operable by the passage over the ground to be protected of a tank or other vehicle, a non extensible cable extending to all of the said ex 10 plosive devices, and an extensible sheath around said cable, said cable and sheath lying on or just below the surface of the ground with the ends thereof adjacent each explosive device so con nected to the associated ñring mechanism that 15 the relative movement therebetween caused by deformation of said cable and sheath due to the passage of a vehicle thereover results in Voperation of said ñring mechanism. 8. Apparatus of the character described for 20 protecting the ground of military operations com prising a plurality of explosive devices adapted to lie on or to be buried in the ground at separated points and including ñring mechanisms operable by the passage over the ground to be protected of 25 a tank or other vehicle, a non-extensible cable having a main portion and a plurality of branch portions extending therefrom to said explosive devices, and an extensible sheath surrounding said main and branch cable portions, said cable 30 and sheath lying on or just below the surface of the ground with the ends of each branch cable portion and the associated section of sheath so connected to the firing mechanism of the explo sive device to which they extend that the relative 35 movement therebetween caused by deformation of said cable and sheath due to the passage of a vehicle thereover results in operation of said ñr ing mechanism. NICOLAS EMILIEN METHLIN.