FR2860019A1 - Tile assembly arranging device for angled eaves, has truncated Roman tile portions that include slant truncated portions placed symmetrically on both sides of bisecting plane of symmetry and are arranged to form mono-block assembly - Google Patents

Abstract

The device has a set of truncated Roman tile portions with slant truncated portions (41-42, 41-42) arranged symmetrically on both sides of a bisecting plane of symmetry. The slant portions located on the same side of the plane parallel to a slanting line (45) have their longitudinal edges (125) placed against each other. The Roman tile portions are arranged such that they form a mono-block assembly. The plane of symmetry is bisected by the angle formed by alignment planes (P1, P2) of the ends (127) of larger width of the slant truncated tile portions. Independent claims are also included for the following: (a) a process for fabrication of a tile assembly arranging device (b) a process for installation of a tile assembly arranging device.

Description

The present invention relates to the production of sponge cakes, and more

  particularly a device for producing a portion of sponge genoise.

  We find more particularly devices of tiles arranged in Genoise, also called abbreviated Genoese on the houses of the type of Provence, whose roofs are realized in round tiles or tiles channel.

  The round tiles have the shape of a hollow truncated cone cut in two in the direction of its length and therefore comprise two ends of different widths, one of small width and one of great width, hereinafter called "small end "and" big end ".

  Genoese are made by aligning in two superimposed rows of identical channel tiles, below the roof and around the house, whose lower row rests horizontally at the top of the walls of facade, their large end protruding.

  The top row is offset from the bottom row in the transverse direction of a tile by half the width of a tile, so that the longitudinal edges of the tiles in the top row rest on the part of the tile. curved tiles of the lower row.

  This upper row is also shifted in the longitudinal direction of a tile with respect to the lower row projecting from the wall with respect to the lower row.

  The function of these génoises was initially to preserve the facades of the houses of the run-off of the rainwater by serving as gutter. Today they have an essentially aesthetic vocation but are nonetheless indispensable as they remain a typical component of these houses.

  A row is made by placing the tiles on a layer of mortar, their large ends aligned side by side and perpendicular to the longitudinal direction of the wall.

  The tiles of the two lower and upper rows are aligned on the rear edge of the upper edge of the wall, that is to say against the vertical plane of the inner face of the wall, and cut in length so that those in the lower row exceed the vertical front face of the wall about 14 cm, and those in the upper row exceed about 5 to 15 cm, more particularly 14 cm from the lower row.

  The upper rim of the wall thus provides a sufficient contact surface and tile hooking so that they remain in place without any other holding device while the mortar dries.

  However,. the realization of genoises is problematic at the corner formed by the junction of two walls not parallel to each other.

  Indeed, for the Genoese to surround this corner, the tiles that constitute it must be cut preferably by a bevel at 45 to ensure an angle of 90 to the set, in the particular case of a corner formed by two perpendicular walls Several tiles are needed to achieve this angle, preferably at least four. They are arranged in identical numbers on both sides of the corner, on each wall, their bevelled sides contiguous.

  Therefore, because of this cutting, the contact surface with the wall is lower for these tiles constituting the Genoese corner, especially for tile portions at the corner of the wall for which the vertical projection of their center of gravity is not included in the area of wall covering by the tiles. Corner cups should then be temporarily held by a stabilizer while the mortar dries to prevent them from tipping over.

  This stabilizing device, usually made with pieces of wood and wire, requires some practice and qualified personnel. In addition, it is necessary to wait until the mortar is dry to remove the temporary holding device and continue the realization of the sponge, including the realization of the upper row. This implies a waste of time and therefore a significant cost of implementation.

  Furthermore, the cutting of the tiles constituting the Genoese corner is also problematic. Indeed, it often happens that they break under the effect of cutting. Again, this results in experienced staff and additional cost.

  Finally, when making the Genoise angle, it is necessary to tighten the different pieces of tile between them to limit the amount of mortar and enhance the stability of the whole, especially during the realization of the second row.

  This is also problematic because of the frustoconical shape of a tile. Indeed, the longitudinal edges of a tile are not parallel to each other and form a certain angle, which makes difficult the respective positioning of the different portions of truncated tiles constituting the corner sponge.

  The purpose of the present invention is to facilitate the installation of the genoise tiles corner.

  More particularly, the present invention relates to a device for producing a portion of sponge genoise comprising a plurality of truncated tile portions on the side of their end of smaller width along a line of bevel and arranged symmetrically on both sides. another of a line coinciding or parallel to said line of bevel.

  More specifically, the present invention provides a device for producing a set of sponge genoise tiles characterized in that it comprises a plurality of channel tile portions truncated on the side of their end of smaller width of which at least a number pair of said portions of tiles truncated in bevel along a line of bevel arranged symmetrically on either side of a plane of symmetry P3 parallel to said bevel lines, said plane of symmetry P3 being bisector of the angle formed by the Alignment planes P1 and P2 of the wide ends of said truncated portions of truncated bevel, said truncated portions of bevel truncated located on the same side of said bisecting plane P3 being arranged with at least one of their longitudinal edges substantially the against each other, and in that said tile portions are interconnected to form a one-piece assembly.

  The invention achieves its purpose primarily by the fact that said truncated tile portions 30 are interconnected to form a one-piece assembly.

  By this is meant that the tile portions constituting the corner sponge are integral and preferably come from material. The realization of the genoise is then done by arranging a single set of tiles connected to each other instead of so many independent tiles.

  The tiles can be interconnected for example by a metal armature arranged and glued on the concave portion of the tile portions, or deposited directly in the mold before molding them, so that they come from material.

  More particularly, the present invention provides a device which comprises a set of truncated channel tile portions whose longitudinal edges are all arranged substantially in the same base plane P4, said set of channel tile portions comprising at least a first series and a second series each comprising the same number of at least two portions of beveled truncated tiles, and those of said first series being disposed symmetrically to those of said second series with respect to said plane of symmetry P3, said truncated portions of truncated tiles in each of said first and second series being disposed side-by-side substantially edge-to-edge along one of their longitudinal edges with their substantially parallel longitudinal axial planes P51 P51 ', P52-P52', and said bevelled truncated tile portions being beveled on the side of their end of smaller width according to a li a bevel gnee substantially parallel to said plane of symmetry P3, the wide-width ends of each of said bevelled truncated tile portions of the same said series being aligned with one another along said alignment planes P1 and P2, said plane of symmetry P3; forming a plane bisecting the angle formed by said two alignment planes P1 and P2 and in that said channel tile portions forming said set are integral and form a single piece, and preferably come from material.

  It will be understood that the device according to the invention is intended to be situated at a corner situated at the junction of two walls forming an angle α between them, said portions of tiles being intended to be arranged on the top of the wall; with their longitudinal edges side by side in each said first and second series arranged horizontally on the top of the wall, the concavity of the tile portions of said first and second series being necessarily turned downwards on the side of the wall, the ends of large width of said portions in each of said first and second series aligned with each other in each series being intended to belong to the same plane P1, P2 parallel to the plane formed by the outer face of the wall on which they rest and said median plane of symmetry of the device being intended to coincide with the bisecting plane of the angle formed by the two walls.

  The production of the sponge is therefore simple and effective by arranging the particular corner tile formed of said assembly on the corner formed by the two walls, without having to perform prior cutting.

  In a particular embodiment, said channel tile portions have a shortened length relative to standard channel tiles, preferably shortened on the side of their smaller width end.

  According to a first variant embodiment, the device according to the invention comprises an even number of said portions of channel tiles truncated in bevel, said bevel line of said tile portions of each of said first and second series being a substantially common line of junction between the tile portions of said first series to that of said second series, said bevel line belonging to said symmetry plane P3, and preferably the device comprising 4 or 6 said bevel truncated tile portions, with respectively 2 or 3 in each of said first and second series.

  In this preferred embodiment, the bevel line is a common line connecting the first set of tiles to the second set of tiles of the set and the bevel line belongs to the plane of symmetry P3 of the device.

  By this is meant that the series of tiles composing the angle sponge are interconnected along the line of bevel, at their truncated portion.

  This is included in the plane of symmetry P3.

  According to a second variant embodiment, this device comprises an odd number of truncated channel tiles including an even number of said bevelled truncated tile portions and a non-bevelled central tile portion preferably transversely truncated at the end of its narrow end, so that the bevel lines of said bevelled truncated tile portions of each of said first and second series are respectively contiguous on either side of said non-beveled central tile portion against one of the longitudinal edges of said central tile portion.

  By this is meant that the device can also be made from an odd number of tiles, for example 5 tiles, while retaining its symmetrical character. On both sides of a first tile, called central, the other tiles, in equal number and symmetrically with respect to the plane of symmetry of the central tile. This is confused with the median plane at the corner of the corner formed by two walls.

  In a particular embodiment, this device comprises at least one additional lateral non-bevelled tile portion, said non-beveled lateral tile portion having longitudinal edges of equal length and equal to the length of the largest longitudinal edge of said truncated tile portions. in bevel of said first and second series, and said lateral non-beveled tile portion being disposed edge to edge with said longitudinal edge of greater length of said tapered tile portion of greater length of said assembly.

  Preferably, the device according to the invention comprises an even number of said additional non-bevelled side truncated tiles arranged symmetrically at the two lateral ends furthest from the angle of said device with respect to said plane of symmetry P3.

  Preferably, the device according to the invention comprises two said truncated beveled tiles having a single longitudinal edge.

  It is therefore a portion of truncated triangular beveled tiles capable of forming the angle of the sponge genoise device according to the invention when their bevelled portions are placed against each other.

  In a preferred embodiment, said longitudinal edges arranged substantially one against the other of said two side-by-side tile portions are joined by solid material preferably in the form of flats in the space of the angular sector resulting from the parallel arrangement of their longitudinal axial planes P5 and the non-parallel arrangement of their two longitudinal longitudinal edges, more preferably, a material identical to the constituent material of said tile portions and integral with it.

  This material ensuring the junction between the longitudinal edges of the tile portions makes it possible to fill the void resulting from putting side by side two portions of trapezoidal planar projection tiles.

  Moreover, this material allows a better stability of the device and ensures the regular character of the sponge cake.

  In; Indeed, the position of the tiles is always the same and no longer depends on the person responsible for making the sponge cake.

  Advantageously, this device can mimic old tiles. This means that it can undergo a treatment or any other operation that gives the tiles an aged appearance. This Genoise corner can easily be integrated into houses whose roof has an old appearance.

  Advantageously, this device has a square shape whose dimensions on one side are of the order of 34 cm and has a height of about 8 cm. These are the dimensions of the device made with an even number of tiles, more particularly the device initially made with 4 tiles.

  In a preferred embodiment, said angle between said alignment planes P1 and P2 of the wide ends of said tile portions is between 60 and 120. More particularly, said angle is substantially equal to 90.

  The present invention also relates to a method of manufacturing a device according to the invention, obtained by molding in one piece, preferably from terracotta.

  The present invention also relates to a method for installing a device according to the invention, at a corner at the junction of two walls forming between them a said angle α, said device being placed over the upper edge of said walls in their corner corner with the concavity of said tile portions facing down, said longitudinal edges of each tile portion being located substantially in the same horizontal base plane P4 at the top of said walls, and said plane of symmetry P3 coinciding with the bisecting plane of the angle formed by the two walls.

  Advantageously, the vertical projection of the center of gravity of the device is located in the overlap area of said upper flanges of said walls of said wall corner by the device.

  Thus, the resultant weight of the assembly, located at the center of gravity, is advantageously located in the overlap zone between said assembly forming the corner tile and the top of the adjacent walls. The corner tile does not pivot and therefore remains in place in the mortar without using additional holding device as described above.

  In a preferred embodiment, there is a first device au. the top of said walls on said corner and a second device over said first device, said first and second devices being offset from each other in each of said longitudinal and transverse directions of a tile so that the longitudinal edges of the upper device rest on the highest generatrix of said tile portions of the lower device.

  By this is meant that, when making the second row of tiles, two corner tiles each formed of a device such as the one defined above can be arranged one on the other and offset these in the transverse and longitudinal directions of a tile in order to respect on both walls the classic shape of the sponge cake.

  This offset is made according to a horizontal vector included in the plane of symmetry of the device P4 which coincides with the plane P3, so that the large end of each tile constituting the corner sponge is in the extension of the large end of the tiles aligned with, the rectilinear part of the sponge made along the top of each of the two walls forming between them the corner.

  When two sponge genoa devices according to the invention are stacked one on the other, they are preferably arranged with respect to the edge of the wall on which they rest so that the ends of small width of the largest longitudinal edge of their longer-length side tile portion is substantially aligned with the trailing edge of the upper edges of the wall on which it rests.

  The embodiment of the angle genoa forming the device according to the present invention is therefore simple and effective and does not require a skilled workforce. Moreover, the time of realization of génoises, and thus the cost of realization, are strongly reduced since it is the Genoise of angle which required a particular experiment and additional time.

  Other advantages and characteristics of the invention will emerge on reading the following description given by way of nonlimiting example and with reference to the appended drawings in which: FIG. 1 represents a round tile or standard channel tile.

  Figure 2 shows a schematic front view of a Provencal type house equipped with tiles arranged in Genoese.

  FIG. 3 shows a partial and enlarged sectional view of the house in the same view as FIG.

  Fig. 4 is a perspective view of a set of bevelled truncated tile portions forming a first embodiment of the device according to the present invention.

  FIG. 5 represents a view from above of the device corresponding to the device according to the invention of FIG.

  FIGS. 6 and 7 show two perspective views from below, respectively from the front and from the side, of a preferred variant of the device according to the present invention of FIG. 5, formed by two devices according to the invention stacked one on the other.

  Figures 8 and 9 show in plan view other schematic representations of embodiments of the device according to the present invention.

  The roof (2) of a Provencal house (1) as shown in Figure 3 is made using round tiles, or channel tiles (12), arranged in juxtaposed rows (11). The tiles overlap longitudinally in each file and tiles of the same file are turned on the same side, but alternately upwards and downwards for the rows succeeding one another in the transverse direction.

  Two successive rows in the transverse direction overlap so that the longitudinal side edges of the row tiles substantially coincide with the longitudinal axis of the tiles of the next row in the transverse direction.

  These files (11) are made on a frame not shown in a method well known to those skilled in the art, the frame being placed and fixed on the top of the walls (21) of the house, on a portion (14) of this top, leaving free another portion (13) of this vertex necessary to achieve the disposition in Genoese (3).

  The sponge (3) is obtained, in a conventional manner, by superimposing two rows (31, 32) of tiles (12) which all have the concavity facing downwards as shown in FIG. 3. The first row, or lower row (32) is performed by placing on a layer of mortar covering the portion (14). the top of the walls, the tiles (12), their long sides or longitudinal edges (124, 125) placed substantially against each other, side by side and the axial planes P5 of the tiles side by side being disposed in parallel between them and perpendicular to the vertical plane of the wall (21).

  These tiles (12), shown in Figure 1, are of standard type and are commonly used by those skilled in the art. They may be regular or irregular and their longitudinal edges (124, 125) generally have a length (123) of 35 or 50 cm, their small end (126) a width (121) of the order of 17 cm and their large end (127) a width (122) of the order of 21 cm. They have a plane of symmetry (P5) which divides them in two along their length.

  When producing the sponge (3), the tiles (12) are cut in the. Width direction at their end of small width (126) and then have a length (123) of the order of 34 cm to be adapted on walls 20 cm thick block.

  The tiles constituting the lower row (32) are thus laid horizontally on the upper edge (14) of the top of the wall (21) on 20 cm in the direction of their length (123), aligned with the inner face of the wall on the side of their small end (121), leaving a protruding portion of the order of 14cm on the side of their large end (122) relative to the vertical plane formed by the outer face of the wall (21).

  The tiles constituting the upper row (31) are laid horizontally on the lower row (32) and are offset on the one hand in their longitudinal direction so that they exceed about 28 cm from the vertical plane formed by the face outer wall (21) is about 14 cm from the outer ends of the lower row.

  On the other hand, the two lower and upper rows are shifted transversely over a distance equal to half the width of a tile, so that the longitudinal edges of the tiles which constitute the upper row rest on the curved portion of the tiles of the lower row, preferably, substantially at its axial plane P5 According to the present invention, it is the device formed of the assembly. monobloc (4, 41, 42) as shown in Figures 4 to 9 which is the sponge corner covering the corner (22) formed by two walls arranged at right angles.

  The device according to the invention substantially resumes the shape of the angle genoa such that they can be made conventionally, that is to say by producing two series (41 42 and 41 '- 42') each comprising at least two truncated bevelled channel tiles and arranged with their longitudinal edges (124, 125) side by side, the bevel line aligned. The first series of tiles (41 - 42) is placed at the top of one of the two walls (21) forming the corner (22), the large ends of the two tiles that constitute it belong to the same plane (P1) parallel and protruding from a distance of 14 cm from the vertical plane of the outer face of the wall. The second series (41 '- 42') is at the top of the other of the two walls (21) forming the corner (22) and the large ends of the two tiles which constitute it belong to the same plane (P2) parallel the plane formed by this wall and perpendicular to the plane P1 and located at a distance of 14 cm from the vertical plane of the outer face of the wall (21) on which it rests.

  The tiles constituting these two series (41 42 and 41 '- 42') are beveled on the side of their small end (126) along a common line (45) belonging to a median plane of symmetry (P3) passing through said corner (22) and are preferably distributed in equal numbers on each side thereof and symmetrically thereto.

  Figure 5 shows the embodiment of this device in one piece, in particular by molding, obtained by filling the space (44) forming an angular sector between the different tiles side by side of the same series. This space (44) filled with material according to the invention by a flat (48) allows in particular a greater surface of support on the wall first and then on a lower device (42) when two devices are superimposed ( 41, 42) (Figures 6 and 7) and improves the stability of the assembly.

  This triangular space (44) results from the frustoconical shape of the truncated tile portions on the one hand and secondly from their arrangement with their parallel axial planes P51 P52, P51 'P52' for the portions of tiles arranged side by side. one side of the plane of symmetry P3.

  In addition, one can obtain substantially the same spacing whatever the device used which improves the aesthetics of the Genoese corner and ensures the regularity thereof.

  In the embodiment of 4 tiles of Figures 4, 5 and 6, this lower device (42) is inscribed in a square (43) whose dimensions on one side are of the order of 34 cm, and has a height of the order of 8 cm.

  The center of gravity of this set (4) lies approximately at the intersection of the diagonals of the square (43), that is to say at a distance of about 17 cm from each of the edges of this one. this.

  When the lower device (42) rests on the rim (14) of the wall, the vertical projection of this center of gravity and therefore of the resultant of the weight of the assembly is thus in the area of overlap (14) of the corner ( 22) by the assembly (4), it is stable and does not rock.

  When making the upper row (31) of the sponge (3) in the corner (22) ,. two devices (41i 42) according to the invention are superimposed as shown in FIGS. 6 and 7. This offset is intentionally amplified in order to show the respective positioning of the two devices (41, 42) in an explicit manner. In general, this shift is of the order of 5 to 15 cm, in particular 14 cm.

  The assembly (41) of the upper row (31) is also fixed with mortar and respects the arrangement of the tiles (12) constituting the sponge (3), that is to say that it is shifted to the times in the longitudinal and transverse directions of a tile.

  To obtain an overshoot of 14 cm the upper device (41) may be larger and is therefore in a square of 48 cm, about the size of a standard tile.

  Figures 4, 5, 6 and 7, there is shown devices (4, 41, 42) comprising only four portions of truncated beveled tiles including two portions (42, 42 ') of triangular tiles forming the angle of the device.

  These tiles (42, 42 ') therefore have only one longitudinal edge.

  In Figure 9, there is shown a device of 6 tiles with a symmetrical assembly according to Figures 4 to 7 supplemented by two additional non-beveled side tiles (47, 47 ') but truncated transversely on the side of their narrow end (126). ) so that one of their longitudinal edges (124, 125) is pressed against the larger longitudinal edge (128) of the truncated non-triangular truncated tile portion (41, 41 '), say the beveled tile having two longitudinal edges (124, 125), and the farthest from the angle of the device. And the two non-beveled tiles (47,47 ') arranged symmetrically on either side of the plane of symmetry P3 have their narrow end (126) forming between them the same angle α as the external angle of the device formed by the longitudinal edges of the two portions of truncated triangular tiles.

  In Figure 8, there is shown a device consisting of five tiles. These are arranged symmetrically and in equal numbers on either side of a central tile (46) not bevelled but truncated transversely on the side of its end of small width and whose plane of symmetry (P5) is merged with the plane (P3) of the device.

  In FIGS. 8 and 9, the length of each truncated tile portion is smaller in the lower device 42 relative to the upper device 41.

Claims (13)

  1 - Device for producing a set of sponge genoise tiles (4, 41, 42) characterized in that it comprises a plurality of portions of truncated channel tiles (41, 42, 46, 47, 41 ', 42 ', 47') at their smaller end end (126), of which at least an even number of said bevelled truncated portions (41 41 ', 42 42') in a symmetrically arranged bevel line (45) on either side of a plane of symmetry P3 parallel to said bevel lines (45), said plane of symmetry P3 being bisecting the angle formed by the alignment planes P1 and P2 of the ends of great width ( 127) of said bevelled truncated tile portions, said truncated bevel truncated portions lying on the same side of said bisecting plane P3 (41 41 ', 42 42', 46, 47) being disposed with at least one of their longitudinal edges (124, 125) substantially against each other, and in that said tile portions (41, 42, 46, 47, 41 ', 42', 47 ') are interconnected to form a one-piece assembly.   2 - Device according to claim 1 characterized in that it comprises a set (4, 41, 42) truncated channel tile portions (41, 42, 46, 47, 41 ', 42', 47 ') whose edges longitudinal members (124, 125) are all arranged substantially in the same base plane P4, said set of channel tile portions comprising at least a first series (41, 42, 47) and a second series (41 ', 42', 47). ') each comprising the same number of at least two bevelled truncated tile portions (41 42, 41' 42 '), and those of said first set (41, 42, 47) being disposed symmetrically with those of said second set (41 ', 42', 47 ') with respect to said plane of symmetry P3, said bevelled truncated tile portions (41, 42, 41', 42 ') in each of said first and second series being disposed side by side substantially edge on board along one of their longitudinal edges (124, 125) with their longitudinal axial planes P51 P51 ', P52 - P52' sensi parallel, and said bevelled truncated tile portions (41 42, 41 '42') being bevelled at their smaller end (126) end along a bevel line (45) substantially parallel to said plane of symmetry P3, the ends of great width (127) of each of said portions of truncated tiles bevel of the same said series being aligned with each other along said alignment planes P1 and P2, said plane of symmetry P3 forming a bisector plane of the angle formed by said two alignment planes P1 and P2 and in that said channel tile portions forming said set are integral and form a single piece, and preferably come from material.   3 - Device according to claim 1 or 2, characterized in that said channel tile portions (41, 42, 46, 47, 41 ', 42', 47 ') have a length (124, 125) shortened with respect to Standard channel tiles, preferably shortened on the side of their smaller-width end (126).   4 - Device according to one of claims 1 to 3, characterized in that it comprises an even number of said portions of truncated channel tiles bevel (41, 42, 41 ', 42'), said bevel line (45 ) said portions of bevelled truncated tiles of each of said first (41, 42) and second (41 ', 42') series being a substantially common line of junction between the tile portions of said first series to that of said second series, said bevel line (45) belonging to said plane of symmetry P3 and preferably the device comprising 4 or 6 said bevel truncated tile portions, with respectively 2 or 3 in each of said first and second series.   - Device according to one of claims 1 to 3, characterized in that it comprises an odd number of truncated channel tiles including an even number of said portions truncated beveled trims (41, 42, 41 ', 42') and a non-bevelled central tile portion (46) preferably truncated transversely at its narrow end end (126), such that said bevel lines (45) of said bevelled truncated tile portions (41, 42, 41 ' , 42 ') of each of said first and second series are contiguous respectively on either side of said non-bevelled central tile portion (46) against one of the longitudinal edges (124, 125) of said central tile portion (46) .   6 - Device according to one of claims 2 to 5 characterized in that it comprises at least one portion of additional non-bevelled lateral tile (47, 47 '), said portion of lateral tile (47, 47') not beveled having its longitudinal edges (124, 125) of the same length and equal to the length of the largest longitudinal edge of said bevelled truncated tile portions (41, 41 ') of said first and second series, and a longitudinal edge of said tile portion non-beveled side edge (47, 47 ') being disposed edge to edge with said longer longitudinal edge (128) of said tapered tile portion (41, 41') of greater length of said assembly.   7 - Device according to one of claims 1 to 6, characterized in that said set comprises two said truncated beveled tiles (42, 42 ') having a single longitudinal edge (125).   8 - Device according to one of claims 6 or 7, characterized in that it has an even number of said additional non-canted side truncated tiles (47, 47 ') arranged symmetrically at the two lateral ends furthest from the corner (22). ) of the angle of said device (4, 41, 42) with respect to said plane of symmetry P3.   9 - Device according to any one of claims 1 to 8, characterized in that said longitudinal edges arranged substantially against each other of said two portions of tiles side by side are joined by solid material preferably in form of flats (48) in the space of the angular sector (44) resulting from the parallel arrangement of their longitudinal axial planes P51 P51 ', P52 P52' and the non-parallel arrangement of their two respective longitudinal edges (124, 125), more preferably, a material identical to the constituent material of said tile portions and integral with it.   10 - Device according to one of claims 1 to 8, characterized in that said angle between said alignment planes P1 and P2 of the wide ends (127) of said tile portions is between 60 and 120, preferably substantially equal at 90.   11 - A method of manufacturing a device according to one of claims 1 25 to 10, characterized in that it is obtained by molding in one piece, preferably from terracotta.   12 - Method for installing a device according to one of claims 1 to 10, characterized in that said device (4, 41, 42) is placed at a corner at the junction (22) of two walls (21 ) forming between them a same angle α, said device (4, 41, 42) being placed over the upper edge of said walls in their corner (22) with the concavity of said portions of tiles facing downwards, said longitudinal edges (124, 125) of each said tile portion being located substantially in the same horizontal plane P4 at the top of said walls, and said median plane of symmetry P3 coinciding with the bisector plane of the angle formed by the two walls .   13 - Method according to claim 12 characterized in that the vertical projection of the center of gravity of the device (4, 41, 42) is located in the overlap area (14) of said upper edges of said walls (21) at said corner of wall by the device.   14 - Method according to one of claims 12 or 13 characterized in that there is a first device (42) at the top of said walls on said corner and a second device (41), above said first device, said first and second devices being offset relative to each other in each of said longitudinal and transverse directions of a tile so that the longitudinal edges of the upper device rest on the highest generatrix of said tile portions of the lower device.