US2801081A

US2801081A - Removable and folding barrier element forming barbed wire entanglements for military and other purposes

Info

Publication number: US2801081A
Application number: US630978A
Authority: US
Inventors: See Jacques Leon Alexandre
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-07-06
Filing date: 1956-12-27
Publication date: 1957-07-30
Anticipated expiration: 1974-07-30
Also published as: DE1047677B; FR1103850A; CH339091A; CH326208A; US2801080A; BE553713A; BE539546A; FR66136E; GB773262A; FR68898E; GB837820A

Description

y 1957 J. L. A..SEE 2,801,081

REMOVABLE AND FOLDING BARRIER ELEMENT FORMING BARBED WIRE ENTANGLEMENTS FOR MILITARY AND OTHER PURPOSES Filed Dec. 27, 1956 2 Sheets-Sheet 1 I /ygn/Tak JJcQiIEsTLASEE BY July 30, 1957 J. L. A. SEE 2,801,081

REMOVABLE AND FOLDING BARRIER ELEMENT FORMING BARBED WIRE ENTANGLEMENTS FOR MILITARY AND OTHER PURPOSES Filed Dec. 27, 1956 2 Sheets-Sheet 2 mfrewmk "J4c uEsZ. 4,S E

United States REMOVABLE AND FOLDING BARRIER ELEMENT FORIVHNG BARBED WIRE ENTANGLEMENTS FOR MILITARY AND OTHER PURPOSES The present invention relates to removable and folding barrier elements forming barbed wire entanglements that can be employed for various purposes and more particularly for military requirements.

These entanglements are frequently made up of a certain number of cross-shaped elements which are lined up one behind the other for forming the framework of the barrier, these elements comprising a ring at their middle part, and sometimes, near to their periphery, a second ring intended to impart great rigidity to each element; these various framework elements are connected by barbed wires extending in a longitudinal direction, in a transversal and diagonal direction, according to various combinations.

. The present invention deals with improvements applied to the forming of entanglements, which greatly facilitate manufacture and also make them easier to mount on the carrier members of an apparatus intended to position them on the spot where they are to be utilized.

According to the present invention, the removable and folding barrier element forming a barbed wire entanglement for military and other purposes comprising framework elements delimiting a square and having four branches turned according to the diagonals of this square, these branches being joined by a middle ring and a peripheric ring contained in said square, is characterized in that each framework element is formed by two rods which are bent before being joined, so as respectively to delimit two straight parts joined to each other by an open ring, these rods being, after shaping, attached to each other by engaging the straight parts of one of them in the open ring of the other, until these two rings come together for delimiting the middle ring of the framework element Which is locked, by the peripheric ring fixed to the straight parts of the rods.

Various other characteristics of the invention will moreaver be revealed by the detailed description which follows.

One form of embodiment of the purpose of the invention is shown, by way of example, in the attached drawing.

Figure l is a perspective View illustrating one form of embodiment of an entanglement which is the subject of this invention.

Figure 2 is a perspective view, on a larger scale, of one of the elements of Figure 1.

Figure 3 is a partial perspective view illustrating a particular method of mounting some of the members forming the entanglement.

Figure 4 is a perspective view similar to Figure 3 showing the connection existing between two of the 6 members of the entanglement, after mounting.

Figure 5 is a perspective view of a clamp for eifecting the connection between the various members of the entanglement.

The entanglement comprises framework elements forming branches whose ends are pointed so that some of these branches can possibly partly enter the ground for ate'nt ()3 ensuring the anchoring of the entanglement when it is opened out. The branches 4 are shaped so that they approximatelyvfollow the direction of the diagonals of a square in order thatthe entanglement can be properly seated, whatever the branches of the framework elements that bear upon the ground. Rings 5 hold the various branches 4 together of each framework element.

As shown in Figure 2, each framework element is pref erably made as follows: 7

Two metal rods arerespectively bent so that each forms two

branches

4a, 4b and 4c, 4d, these two branches being,

2, this method of mounting only requin'ng, once said rods have been shaped as explained, to engage each of the

straight parts

4a, 4b and 4c, 4d respectively in the open ring formed by the joined parts of these straight parts of the rods. 7

Owing to the resilience of the metal of which the bent rods are made, as explained above, the open rings formed by the joined parts of the

straight parts

4a, 4b and 4c, 4d are held firmly against each other; this tightening is further increased when the ring 5 is fixed to the, straight parts 4a to 4d by means of 'welds 15, for example, or binding wire that may replace these welds.

The framework elements described above are joined together by wires 11 extending betweentwo non-adjacent framework elements. These wires are fixed near to the ends of the branches 4, as may be seen by the solid line inFigure 1, then pass and extend appreciably in diagonals of the framework element A to the framework element C. These Wires go through the cavities 14 that are delimited as explained above.

The wires used for eifecting this join are, according to a preferred form of embodiment, twisted wires held together by small plates 16, particularly visible in Figure 4, which are shaped so as to expose sharp-pointed parts.

Owingto the existence of these. small plates, it would be difiicult, if not impossible to pass the wires 11 directlyinto the cavities 14, but owing to the particular shape. of these cavities, the positioning of the wires is greatly facilitated as may be seen in Figure 3, seeing that it is only necessary, by regarding the wire 11a, to engage the latter in the ring delimited by the open rings 4 4 then to slip this wire between the foot of the branch 40 and the open ring 4 so that it comes itself into the cavity delimited at that spot.

The displacement movement that may possibly take place with the wires 11 engaged in the cavities 14 is limited by the small plates 16 which form abutrnents.

In certain cases, for further facilitating the joining of the wires 11 and the framework elements of the entanglement, it is possible to use clamps, as shown in Figure 5, in the housing 17 in which the wires are engaged before the jaws 18 of these clamps have been put into position in the cavities 14 in which they are locked, owing to the resilience of the material of which they are made.

As will be seen in Figure l, the framework elements are also joined together by longitudinal wires 7, of the same kind as those described above, which are attached near to the ends of the branches 4 (the wires 7 are shown by broken lines).

Wires 6, also similar to those described above, are also attached to the ends of the branches 4, so as to join all the latter together while delimiting a parallelogram in which the rings 5 are contained.

Another set of wires 19 are attached so as diagonally Patented July 30, 1957 to join the branches of the various adjacent framework elements: Contingently, other wires (not shown) could also be included in the entanglement, so that, for example, they join together the ends of the

branches

4a, 4d and 4c, 4d of two adjacent framework elements. I

The length of the wire 7 between each framework element is preferably equal to the length of each wire 6 joining the branches of each framework element and the length of the diagonal wires 19 is preferably equal to '/2 the length of these latter wires, which enables, for piling the various framework elements one against each other, to turn them at an angle of 90 without running the risk of entangling the wires, seeing that they are constantly under' tension. This rotation of the framework" elements has the effect of also staggering the notches 12 13 of each adjacent element by 90", which then makes it possible to position the entanglement by means of a simple apparatus revolving the framework elements by'w/ 2 after positioning each of them.

In order to facilitate the mounting of thewire's that must be fixed near to the ends of the branches 4, it is advantageous to shape the latter so that they have loops 20 obtained by bending, thus making it possible to put thewires in place without requiring welding or binding wire, seeing. that it is only necessary to engage them in the loops 20, their stop being obtained on account of the existence of the small plates 16 that they carry. It is alsopos'sible' for the loops 20 to act for fixing the wires by means of clamps'such as those described in Figure 5.

The invention is notrestricted to the form of embodi ment shown and described in detail for various modifications can be applied to it without going outside of its scope.

I claim:

1. Removable and folding barrier element forming barbed wireentanglement for military and other purposes comprising framework elements delimiting a square and having four branches turned according to the diagonals of this square, these branches being joined by a middle ringand a peripheric ring contained in said square, characterised in that each framework element is formed by two rods which are bent before being joined, so as respectively to delimit two straight parts joined to each other by an open ring, these rods being, after shaping, attached to each other by engaging the straight parts of one of them in the open ring of the other, until these two rings come together for delimiting the middle ring of the framework element which is locked, by the peripheric' ringfixed to the straight parts of the rods.

2. An element according to claim 1, characterised in that notches are made by bending in the connecting parts in the shape of an open ring joining the straight parts of each rod forming the framework elements, these notches delimiting, with the parts facing each other of the adjacent open ring of the other rod, closed cavities.

3. An element according to claim 1, characterised in that the straight parts of the rods forming the framework elements are bent near to their ends so as to delimit loops.

4. An element according to claim 1, characterised in that the framework elements are joined together by wires attached near to the ends of the straight parts of the rods forming them, these wires passing through cavities delimited in the middle ring of the following framework elemeilt, then being fixed near to the ends of the straight parts of the rods formingthe following framework element by the cavities from which said wires pass.

5. An element according to claim 1, characterised in that the framework elements are joined by wires extending longitudinally right along the entanglement, these wires being fixed near' the ends ofthe straight parts of the rods forming said framework elements.

6. An element according to claim 1, characterised in that the framework elements have their ring which acts for locking'the rods forming them, contained in a square delimited by the wires fixed near to the ends of the straight parts of the rods.

7. An element according to claim 1', characterised in that the adjacent framework elements are connected by wires extending diagonally from one element to another.

8. An element according to claim 1, characterised in that the parallelepiped delimited by two adjacent framework elements compn'ses wires extending to the interior of this parallelepiped in a diagonal direction.

9. An element according to claim 1, characterised in that the wires acting to jointhe frameworkelements are twisted wires comprising small plates with sharp-pointed parts.

- 10. An element according to claim 1, characterised in that the wires are fixed to the ends of the straight parts of the rods forming the framework elements for passing into the loops made by these straight parts.

11. An element according to claim 1, characterised in that the wires are connected to the framework elements by means of clamps.

No references cited.