EP0894593B1 - Method for manufacturing mosaic tesserae with an antique appearance, and mosaic tesserae obtainable thereby - Google Patents
Method for manufacturing mosaic tesserae with an antique appearance, and mosaic tesserae obtainable thereby Download PDFInfo
- Publication number
- EP0894593B1 EP0894593B1 EP98112163A EP98112163A EP0894593B1 EP 0894593 B1 EP0894593 B1 EP 0894593B1 EP 98112163 A EP98112163 A EP 98112163A EP 98112163 A EP98112163 A EP 98112163A EP 0894593 B1 EP0894593 B1 EP 0894593B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tesserae
- mosaic
- matrix
- obtainable
- mosaic tesserae
- 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
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000011159 matrix material Substances 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004579 marble Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
- B44C3/12—Uniting ornamental elements to structures, e.g. mosaic plates
- B44C3/126—Devices for making mosaic constructs automatically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/006—Artificial ageing of stones; Providing stones with an antique appearance
Definitions
- the present invention relates to a method for manufacturing antique mosaic tesserae and to a mosaic comprising tesserae as obtainable thereby.
- tesserae are shaped by cutting a matrix which can be constituted by a slab of marble or by a glazed tile.
- Cutting is performed by using a plurality of circular blades which are all keyed on a single motorized shaft rotationally driven by an adapted motor unit.
- Said blades rotated and locked on the shaft with gaps which are preset according to the dimensions of the tesserae to be produced, cut the marble or the tile starting from the exposed surface until they cut through the entire thickness.
- Another method for forming said tesserae consists in performing pre-scoring, on both faces of the matrix, with a sort of glass cutter provided with a wheel made of diamond or equivalent material, and in then fracturing said matrix along the pre-scoring lines, which in this case are perfectly straight too.
- Another specific problem of mosaics composed of tesserae manufactured according to conventional technologies is the fact that after laying, due to the limited contact surface of the tesserae and to the consequently limited surface for gluing to the application surface, if said tesserae are stressed for example by intensive treading, some of them may detach from the laying surface, spoiling the figurative composition of the mosaic and even compromising its integrity due to the natural tendency of the effects of weather to creep through the openings left by the missing tesserae, attacking and degrading the foundation adhesive.
- the technology used i.e., the cutting of the marble or of the tiles starting from the exposed surface, causes a significant waste of valuable material due to the loss produced by the thickness of the blades when they cut into it.
- the principal aim of the present invention is to solve the above problems of the prior art by providing a method for manufacturing antique mosaic tesserae which makes them visually different from each other, as if manufactured by hand one by one, and at the same time makes them significantly more stable once they have been laid and also allows a significant saving in the material used to manufacture them.
- the reference numeral 1 generally designates a cutting unit composed of a plurality of circular blades 2 keyed on a motorized shaft 3 which is rotationally driven by a corresponding motor 4.
- the cutting unit 1 by moving downwards to a preset level, scores the back, and only the back, of said matrix 5, forming thereon lines 6 for preferential fracture caused by the reduced resisting cross-section of the thickness, at the same time saving the valuable material used for the exposed face.
- the scoring is performed usually, but not exclusively, in the two perpendicular planar directions (i.e., along the directions that form the edges of the perimeters of the tesserae to be manufactured), so as to create on the back of the matrix 5 a sort of grid which has, in the example, a square mesh.
- the matrix 5 is then passed, for example, through a fracturing machine of a conventional type, which separates the various tesserae 7 formed previously by the grid.
- the resulting tesserae 7 are all placed in a so-called “tumbling barrel", so that said irregular and sharp edges become rounded and safe.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Floor Finish (AREA)
- Road Signs Or Road Markings (AREA)
- Sampling And Sample Adjustment (AREA)
- Finishing Walls (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Description
- The present invention relates to a method for manufacturing antique mosaic tesserae and to a mosaic comprising tesserae as obtainable thereby.
- Various processes have long been used to manufacture mosaic tesserae.
- Their common characteristic is the fact that the tesserae are shaped by cutting a matrix which can be constituted by a slab of marble or by a glazed tile.
- Cutting is performed by using a plurality of circular blades which are all keyed on a single motorized shaft rotationally driven by an adapted motor unit.
- Said blades, rotated and locked on the shaft with gaps which are preset according to the dimensions of the tesserae to be produced, cut the marble or the tile starting from the exposed surface until they cut through the entire thickness.
- This process is repeated for the planar directions that compose the perimeter and the tesserae are thus produced with a perfect shape, with sharp and straight edges.
- Another method for forming said tesserae consists in performing pre-scoring, on both faces of the matrix, with a sort of glass cutter provided with a wheel made of diamond or equivalent material, and in then fracturing said matrix along the pre-scoring lines, which in this case are perfectly straight too.
- Current market trends, however, requires ceramic material for cladding, both for floors and for walls, to resemble as much as possible an antique appearance; and products which do not have a systematically repeated appearance, which unmistakably shows their origin to be an industrial process, become particularly valuable and therefore acquire a proportional commercial value; products which at least appear to be the result of almost hand-made small-batch production are particularly in demand.
- This requirement is felt even more for mosaics, which are decorative compositions of very ancient origin.
- Another specific problem of mosaics composed of tesserae manufactured according to conventional technologies is the fact that after laying, due to the limited contact surface of the tesserae and to the consequently limited surface for gluing to the application surface, if said tesserae are stressed for example by intensive treading, some of them may detach from the laying surface, spoiling the figurative composition of the mosaic and even compromising its integrity due to the natural tendency of the effects of weather to creep through the openings left by the missing tesserae, attacking and degrading the foundation adhesive.
- Finally, the technology used, i.e., the cutting of the marble or of the tiles starting from the exposed surface, causes a significant waste of valuable material due to the loss produced by the thickness of the blades when they cut into it.
- The principal aim of the present invention is to solve the above problems of the prior art by providing a method for manufacturing antique mosaic tesserae which makes them visually different from each other, as if manufactured by hand one by one, and at the same time makes them significantly more stable once they have been laid and also allows a significant saving in the material used to manufacture them.
- This aim and other objects are achieved by a method for manufacturing antique mosaic tesserae as defined in
claim 1. - These objective are also achieved by a mosaic as defined in
claim 3. - Further characteristics and advantages will become apparent from the description of a preferred embodiment of a method for manufacturing antique mosaic tesserae and of tesserae manufactured thereby, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
- Figure 1 is a schematic partial view of a preparatory step for placing an inverted slab-like matrix under a cutting unit;
- Figure 2 is a view of the same portion of matrix subjected to scoring of its laying face;
- Figure 3 is a view of some tesserae, still in the inverted position, obtained after fracturing the scored matrix;
- Figure 4 is a slightly enlarged-scale schematic sectional view of some tesserae that have been laid so as to form a mosaic;
- Figure 5 is a perspective view of a tessera obtained with the method according to the invention.
-
- With particular reference to the above figures, the
reference numeral 1 generally designates a cutting unit composed of a plurality ofcircular blades 2 keyed on a motorizedshaft 3 which is rotationally driven by acorresponding motor 4. - A slab-
like matrix 5, preferably constituted by a slab of marble or by an already-glazed tile, is placed below theblades 2. - The
cutting unit 1, by moving downwards to a preset level, scores the back, and only the back, of saidmatrix 5, forming thereon lines 6 for preferential fracture caused by the reduced resisting cross-section of the thickness, at the same time saving the valuable material used for the exposed face. - The scoring is performed usually, but not exclusively, in the two perpendicular planar directions (i.e., along the directions that form the edges of the perimeters of the tesserae to be manufactured), so as to create on the back of the matrix 5 a sort of grid which has, in the example, a square mesh.
- The
matrix 5 is then passed, for example, through a fracturing machine of a conventional type, which separates thevarious tesserae 7 formed previously by the grid. - The fracture of the
bridges 8 that join thevarious tesserae 7 produces an irregular and absolutely random shape of the edges of each tessera, making eachtessera 7 different from the others. - After fracture, the resulting
tesserae 7 are all placed in a so-called "tumbling barrel", so that said irregular and sharp edges become rounded and safe. - It should also be noted that the fracture forms, on the body of each
tessera 7, fourfaces 9 slightly recessed with respect to the corresponding parallel sides 9a of the exposed face. - This fact forms, between
multiple tesserae 7 arranged side by side so as to compose a mosaic, wider interstices which are penetrated by the adhesive material, which accordingly acts not only on the laying face but also on thelateral faces 9, considerably increasing the force with which eachtessera 7 grips the surface on which it is laid. - It has thus been found that the described invention achieves the intended aim and objects.
- The invention thus conceived is susceptible of modifications and variations, all of which are within the scope of the inventive concept as defined by the claims.
- Moreover, all the details may be replaced with other technically equivalent elements within the scope of the claims.
- In the practical execution of the invention, the materials used, as well as the shapes and the dimensions, may be any according to requirements without thereby abandoning the scope of the protection of the appended claims.
- Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the interpretation of each element identified by way of example by such reference signs.
Claims (3)
- A method for manufacturing antique mosaic tesserae (7) characterized in that it comprises the steps of:placing a slab-like matrix under a cutting unit, said matrix being upside-down so that the exposed face is directed away from said unit;scoring the laying side along at least two directions and to a preset and adjustable depth, creating preferential fracture lines;fracturing said slab-like matrix scored on the laying face;tumbling the resulting tesserae in order to round their edges, the resulting tesserae having recessed lateral faces (9) with is respect to the corresponding sides of the upper surface to be exposed.
- A method according to claim 1, characterized in that said at least two directions are determined in a planar fashion by the edges of the tesserae to be produced.
- A mosaic having tesserae (7) as obtainable by the method of claim 1 or claim 2, wherein the tesserae are arranged with interstices which are penetrated by adhesive material which acts on the laying and lateral (9) faces, and not on the exposed face.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT97MO000132A IT1294897B1 (en) | 1997-07-17 | 1997-07-17 | PROCEDURE FOR THE PRODUCTION OF MOSAIC TILES WITH AN ANTIQUE APPEARANCE AND TILES SO REPRODUCED. |
ITMO970132 | 1997-07-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0894593A2 EP0894593A2 (en) | 1999-02-03 |
EP0894593A3 EP0894593A3 (en) | 2001-01-03 |
EP0894593B1 true EP0894593B1 (en) | 2003-03-12 |
Family
ID=11386385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98112163A Expired - Lifetime EP0894593B1 (en) | 1997-07-17 | 1998-07-01 | Method for manufacturing mosaic tesserae with an antique appearance, and mosaic tesserae obtainable thereby |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0894593B1 (en) |
CN (1) | CN1094913C (en) |
ES (1) | ES2195235T3 (en) |
IT (1) | IT1294897B1 (en) |
PT (1) | PT894593E (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1321312B1 (en) * | 2000-07-06 | 2004-01-08 | Casa Dolce Casa S P A | TOZZETTO AND METHOD FOR ITS REALIZATION. |
IT1321313B1 (en) * | 2000-07-06 | 2004-01-08 | Casa Dolce Casa S P A | FRACTURABLE TILE FOR OBTAINING STRIPS OR STRIPS, AND ITS METHOD. |
WO2002007940A1 (en) * | 2000-07-20 | 2002-01-31 | Gieffevi Eurogroup S.R.L. | Method for producing mosaic tesserae and tesserae obtainable by using those tesserae |
ITMO20030231A1 (en) * | 2003-08-07 | 2005-02-08 | Itiemm S R L | APPARATUS AND METHOD FOR MANUFACTURING A DECORATOR AND DECORATOR MANUFACTURED ITEM |
EP2045097A1 (en) * | 2007-10-01 | 2009-04-08 | Iniziativa Otto S.r.l. | A process for realising mosaics in ceramic material |
FR3007683B1 (en) * | 2013-06-27 | 2015-06-19 | Wienerberger | TRIBOFINITION FOR PLATE |
CN108453907A (en) * | 2018-04-24 | 2018-08-28 | 浙江卡莎罗新型装饰材料有限公司 | A kind of mosaic production excision forming device |
IT202100019604A1 (en) | 2021-07-23 | 2023-01-23 | Studio Immagine S R L | METHOD AND EQUIPMENT FOR THE PRODUCTION OF CERAMIC PRODUCTS WITH IRREGULAR EDGES |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8908510U1 (en) * | 1989-02-16 | 1989-09-14 | Hofmann, Hermann, 6336 Solms | Paving slab or paving stone made of a natural stone material, preferably basalt |
FR2670223A1 (en) * | 1990-12-06 | 1992-06-12 | Maynadier Christian | Constructional element ready to be laid as a paving surface, its method of manufacture and the method for laying it |
US5398458A (en) * | 1992-11-19 | 1995-03-21 | Craftsman Marble, Granite & Tile Co. | Process of manufacturing stone tile mosaics and apparatus therefor |
US5586925A (en) * | 1994-04-08 | 1996-12-24 | Donato DiNorcia | Apparatus and method for processing marble |
CA2127191C (en) * | 1994-06-30 | 1999-11-23 | Robert B. Shouldice | Artificial stone and method and apparatus for producing same |
-
1997
- 1997-07-17 IT IT97MO000132A patent/IT1294897B1/en active IP Right Grant
-
1998
- 1998-07-01 PT PT98112163T patent/PT894593E/en unknown
- 1998-07-01 EP EP98112163A patent/EP0894593B1/en not_active Expired - Lifetime
- 1998-07-01 ES ES98112163T patent/ES2195235T3/en not_active Expired - Lifetime
- 1998-07-13 CN CN98115493A patent/CN1094913C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
PT894593E (en) | 2003-07-31 |
EP0894593A3 (en) | 2001-01-03 |
ITMO970132A1 (en) | 1999-01-17 |
EP0894593A2 (en) | 1999-02-03 |
ITMO970132A0 (en) | 1997-07-17 |
CN1205994A (en) | 1999-01-27 |
CN1094913C (en) | 2002-11-27 |
IT1294897B1 (en) | 1999-04-23 |
ES2195235T3 (en) | 2003-12-01 |
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