GB2421001A - Moulding paving blocks for a circular area - Google Patents

Moulding paving blocks for a circular area Download PDF

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Publication number
GB2421001A
GB2421001A GB0426905A GB0426905A GB2421001A GB 2421001 A GB2421001 A GB 2421001A GB 0426905 A GB0426905 A GB 0426905A GB 0426905 A GB0426905 A GB 0426905A GB 2421001 A GB2421001 A GB 2421001A
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United Kingdom
Prior art keywords
course
mould
blocks
sub
block
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GB0426905A
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GB0426905D0 (en
Inventor
Calvin Jackson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tarmac Ltd
Original Assignee
Tarmac Ltd
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Filing date
Publication date
Application filed by Tarmac Ltd filed Critical Tarmac Ltd
Priority to GB0426905A priority Critical patent/GB2421001A/en
Publication of GB0426905D0 publication Critical patent/GB0426905D0/en
Publication of GB2421001A publication Critical patent/GB2421001A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C5/00—Pavings made of prefabricated single units
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2201/00—Paving elements
    • E01C2201/06—Sets of paving elements
    • E01C2201/065—Sets of paving elements specially for coverings around manhole-shafts or the like

Abstract

A method of manufacturing blocks is used for use in paving a circular area, which may consist of semicircular centre blocks 0, 0, sixteen blocks 1 in a first course surrounding blocks 0, 0, and thirty two blocks 2 of a second course surrounding the first course and thirty two blocks 3 of a third course surrounding the second course. The method comprises manufacturing at least one centre block 0, 0 for producing a centrepiece of the circular area, using one or more moulding operations of a first mould, manufacturing blocks of a first course for surrounding the centre block, using one or more moulding operations of a second mould, and manufacturing blocks of a second course for surrounding the first course and blocks of a third course for surrounding the second course, using one or more moulding operations of a third mould. Each mould may comprise plural separators to form sub-moulds. A moulding machine comprising interchangeable mould head and an interchangeable mould, maybe used. The head may have plate, which maybe textured.

Description

PATENTS ACT 1977 A 11131GB Title: Block Paving
Description of Invention
This invention relates to a method of producing blocks for use in paving a circular area.
The use of blocks for paving is well known. Many different areas can be paved, including circular areas. Conventionally, such circular areas are paved using one or more central blocks forming a centrepiece, surrounded by one or more circular courses of blocks. The paving blocks are usually manufactured using one or moulds. The moulds may be used to manufacture one block or a plurality of blocks.
The present invention seeks to provide a further method of manufacturing the blocks for paving a circular area.
According to a first aspect of the invention there is provided a method of:*..:.
manufacturing blocks for use in paving a circular area, comprising *SS* manufacturing at least one centre block for producing a centrepiece of *: : : the circular area, using one or more moulding operations of a first mould, manufacturing blocks of a first course for surrounding the centre block, using one or more moulding operations of a second mould, and manufacturing blocks of a second course for surrounding the first course and blocks of a third course for surrounding the second course, using one or more moulding operations of a third mould.
The method may comprise manufacturing two centre blocks, each of which is substantially semicircular in shape. The method may comprise manufacturing the two centre blocks together using one moulding operation of the first mould.
The method may comprise manufacturing a plurality of the blocks of the first course in the or each moulding operation of the second mould. The method may comprise manufacturing eight blocks of the first course in the or each moulding operation of the second mould. Preferably, the method comprises manufacturing eight blocks of the first course in each of two moulding operations of the second mould. The first course may therefore comprise sixteen blocks.
The second mould may comprise a plurality of sub-moulds, each sub- mould being used to produce a block. The sub-moulds may be arranged in the second mould to provide a mould which has two opposite sides which are substantially parallel to each other. Preferably, the second mould comprises eight sub-moulds, each sub-mould being used to produce a block. The sub- moulds may be arranged in the second mould in one row of eight sub-moulds, * 0*S* to form a substantially rectangular mould. The sub-moulds may be arranged in. : the row to provide a second mould which has two opposite sides which are substantially parallel to each other. Having a mould which has two opposite sides which are substantially parallel to each other, allows the blocks produced by such a mould to be easily lifted. ...
. SSS *..DTD: The method may comprise manufacturing a plurality of the blocks of the * : second course and a plurality of the blocks of the third course in the or each moulding operation of the third mould. The method may comprise manufacturing eight blocks of the second course and eight blocks of the third course in the or each moulding operation of the third mould. The method may comprise manufacturing eight blocks of the second course and eight blocks of the third course in each of four moulding operations of the third mould. The method may comprise manufacturing sixteen blocks of the second course and sixteen blocks of the third course in the or each moulding operation of the third mould. The method may comprise manufacturing sixteen blocks of the second course and sixteen blocks of the third course in each of two moulding operations of the third mould. In each case, each of the second and third courses may therefore comprise thirty two blocks.
The third mould may comprise a plurality of sub-moulds, each sub- mould being used to produce a block. The sub-moulds may be arranged in the third mould to provide a mould which has two opposite sides which are substantially parallel to each other. Having a mould which has two opposite sides which are substantially parallel to each other, allows the blocks produced by such a mould to be easily lifted.
The third mould may comprise sixteen sub-moulds, each of eight sub- moulds being used to produce a block of the second course, and each of eight sub-moulds being used to produce a block of the third course. The sub-moulds may be arranged in the third mould in two rows of eight submoulds, to form a substantially rectangular mould. The first row may comprise a sub-mould used * to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by a sub-mould used to produce a block of the second course. The second row may comprise a sub- . ". S...
mould used to produce a block of the third course, followed by two submoulds * : each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by a sub-mould used to produce a block of the third course. The sub-moulds may be arranged in the first row and the second row to provide a third mould which has two opposite sides which are substantially parallel to each other.
The third mould may comprise thirty two sub-moulds, each of sixteen submoulds being used to produce a block of the second course, and each of sixteen sub-moulds being used to produce a block of the third course. The sub- moulds may be arranged in the third mould in four rows of eight submoulds, to form a substantially rectangular mould. The first row may comprise a sub- mould used to produce a block of the second course, followed by two sub- moulds each used to produce a block of the third course, followed by two sub- moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by a sub- mould used to produce a block of the second course. The second row may comprise a sub-mould used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by a sub-mould used to produce a block of the third course. The third row may comprise a sub-mould used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed *..S by two sub-moulds each used to produce a block of the second course, followed * by two sub- moulds each used to produce a block of the third course, followed by a sub-mould used to produce a block of the second course. The fourth row S* may comprise a sub-mould used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, *.
followed by two sub-moulds each used to produce a block of the third course, * : followed by two sub-moulds each used to produce a block of the second course, followed by a sub-mould used to produce a block of the third course. The sub- moulds may be arranged in the first row, second row, third row and fourth row to provide a third mould which has two opposite sides which are substantially parallel to each other.
The blocks of the second course and the blocks of the third course may be packaged together. When the method comprises manufacturing eight blocks of the second course and eight blocks of the third course in each of four moulding operations of the third mould, all of the blocks may be packaged together in four layers, with eight blocks of the second course and eight blocks of the third course in each layer. When the method comprises manufacturing sixteen blocks of the second course and sixteen blocks of the third course in each of two moulding operations of the third mould, all of the blocks may be packaged together in two layers, with sixteen blocks of the second course and sixteen blocks of the third course in each layer.
The method may comprise manufacturing blocks of at least one further course for surrounding the third course, using one or more moulding operations of a fourth mould. The method may comprise manufacturing blocks of a fourth course for surrounding the third course, blocks of a fifth course for surrounding the fourth course, and blocks of a sixth course for surrounding the fifth course, using one or more moulding operations of a fourth mould. The method may comprise manufacturing a plurality of the blocks of the fourth course, a plurality of the blocks of the fifth course and a plurality of the blocks of the sixth course in the or each moulding operation of the fourth mould. The::.
method may comprise manufacturing eight blocks of the fourth course, eight blocks of the fifth course, and eight blocks of the sixth course in the or each moulding operation of the third mould. Preferably, the method comprises manufacturing eight blocks of the fourth course, eight blocks of the fifth *
I S S
course, and eight blocks of the sixth course in each of six moulding operations * : of the fourth mould. Each of the fourth, fifth and sixth courses may therefore comprise forty eight blocks.
The fourth mould may comprise a plurality of sub-moulds, each sub- mould being used to produce a block. The sub-moulds may be arranged in the fourth mould to provide a mould which has two opposite sides which are substantially parallel to each other. Preferably, the fourth mould comprises twenty four sub-moulds, each of eight sub-moulds being used to produce a block of the fourth course, each of eight sub-moulds being used to produce a block of the fifth course, and each of eight sub-moulds being used to produce a block of the sixth course. The sub-moulds may be arranged in the fourth mould in three rows of eight sub-moulds, to form a substantially rectangular mould.
The first row may comprise a sub-mould used to produce a block of the fourth course, followed by two sub-moulds each used to produce a block of the sixth course, followed by two sub-moulds each used to produce a block of the fourth course, followed by two sub-moulds each used to produce a block of the sixth course, followed by a sub-mould used to produce a block of the fourth course.
The second row may comprise eight sub-moulds, each used to produce a block of the fifth course. The third row may comprise a sub-mould used to produce a block of the sixth course, followed by two sub-moulds each used to produce a block of the fourth course, followed by two sub-moulds each used to produce a block of the sixth course, followed by two sub-moulds each used to produce a block of the fourth course, followed by a submould used to produce a block of the sixth course. The sub-moulds may be arranged in the first row, the second row and the third row to provide a fourth mould which has two opposite sides * : which are substantially parallel to each other. Having a mould which has two opposite sides which are substantially parallel to each other, allows the blocks produced by such a mould to be easily lifted.
The blocks of the fourth course, the blocks of the fifth course and the. *.SS
blocks of the sixth course may be packaged together. When the method * : * comprises manufacturing eight blocks of the fourth course, eight blocks of the fifth course and eight blocks of the sixth course in each of six moulding operations of the fourth mould, all of the blocks may be packaged together in six layers, with eight blocks of the fourth course, eight blocks of the fifth course and eight blocks of the sixth course in each layer.
It is therefore possible to manufacture blocks for use in paving circular areas having different radii. When the method comprises manufacturing blocks for a centrepiece and first, second and third courses, the circular area produced by the blocks will have a first radius, for example of approximately 700mm.
When the method comprises manufacturing blocks for a centrepiece and first, second, third, fourth, fifth and sixth courses, the circular area produced by the blocks will have a second, larger, radius, for example of approximately 1300mm.
It is possible to add further blocks, for example which are substantially square, to the circular area, surrounding the outermost course thereof to increase the radius of the circular area.
Each of the moulds may comprise a frame. Each of the moulds may comprise a plurality of separators to form sub-moulds within the mould. Each of the moulds may be open at a top and a bottom thereof.
The method of manufacturing the blocks may be carried out using in a moulding machine. The moulding machine may comprise an interchangeable mould head and an interchangeable mould. The mould head may comprise at least one weighted plate supported by an arm. The mould head may comprise one plate for each sub-mould of the mould. The or each plate may be textured to produce a textured block. The action of mould head may be machine controlled. :...:.
The method may comprise placing a mould on a removable base of the * moulding machine, filling the mould with material for the blocks, pressing the *: : * material into the mould using the mould head, the or each plate of the mould head pressing material into a sub-mould of the mould, removing the mould head from the mould, removing the mould from the blocks, removing the blocks on the base from the moulding machine, and allowing the blocks to set.
Each of the blocks may be manufactured from concrete. The concrete may contain one or more additives, for example to colour the concrete, and/or to change properties such as the strength of the concrete. Each of the blocks of a course may comprise first and second curved ends and substantially straight sides, which converge from the first end towards the second end. The substantially straight sides may be approximately 200mm in length. Each of the blocks of a course may comprise one or more nibs. When each of the blocks of a course comprises first and second curved ends and substantially straight sides, a nib may be provided on each end, and two nibs may be provided on each side.
Each nib may protrude from a surface of a block. Each nib may be used to provide proper separation of the blocks when used for paving the circular area.
According to a second aspect of the invention there is provided blocks for use in paving a circular area, manufactured according to the method of the first aspect of the invention.
Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a schematic representation of a first circular area paved with blocks manufactured by the method of the first aspect of the invention, Figure 2 is a schematic representation of a first embodiment of a third mould, used to manufacture blocks of a second course and a third course of the circular area of Figure 1, Figure 3 is a schematic representation of a second embodiment of a third S.... S mould, used to manufacture blocks of a second course and a third course of the circular area of Figure 1, Figure 4 is a schematic representation of a second circular area paved * : with blocks manufactured by the method of the first aspect of the invention, and Figure 5 is a schematic representation of a fourth mould, used to manufacture blocks of a fourth course, a fifth course and a sixth course of the circular area of Figure 4.
Referring to Figure 1, it can be seen that the circular area comprises two centre blocks 0, each semicircular in shape, forming a centrepiece, sixteen blocks 1 in a first course surrounding the centre blocks, and thirty two blocks 2 of a second course surrounding the first course and thirty two blocks 3 of a third course surrounding the second course.
The two centre blocks are manufactured together using one moulding operation of a first mould (not shown).
Eight blocks of the first course are manufactured in each of two moulding operations of a second mould (not shown). The second mould comprises eight sub-moulds, each sub-mould being used to produce a block.
The sub-moulds are arranged in the second mould in one row of eight submoulds, to form a substantially rectangular mould. This arrangement of the sub-moulds in the row provides a second mould which has two opposite sides which are substantially parallel to each other. Having a mould which has two opposite sides which are substantially parallel to each other, allows the blocks produced by such a mould to be easily lifted.
When the first embodiment of a third mould, as shown in Figure 2, is used, eight blocks of the second course and eight blocks of the third course are *.
manufactured in each of four moulding operations of the third mould. The *: third mould comprises sixteen sub-moulds, each of eight sub-moulds being used to produce a block of the second course, and each of eight submoulds being used to produce a block of the third course. The sub-moulds are arranged in the third mould in two rows of eight sub-moulds, to form a substantially: : : : rectangular mould, as shown. The first row comprises a sub-mould used to * produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by a sub-mould used to produce a block of the second course. The second row comprises a sub-mould used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by a sub- mould used to produce a block of the third course. This arrangement of the sub-moulds in the first row and the second row provides a third mould which has two opposite sides 4, 5 which are substantially parallel to each other. Having a mould which has two opposite sides which are substantially parallel to each other, allows the blocks produced by such a mould to be easily lifted.
The blocks of the second course and the blocks of the third course are packaged together, after their manufacture. The eight blocks of the second course and eight blocks of the third course manufactured in each of four moulding operations of the third mould, are all packaged together in four layers, with eight blocks of the second course and eight blocks of the third course in each layer.
When the second embodiment of the third mould, as shown in Figure 3, is used, sixteen blocks of the second course and sixteen blocks of the third course are manufactured in each of two moulding operations of the third mould. ... S...
The third mould comprises thirty two sub-moulds, each of sixteen submoulds: being used to produce a block of the second course, and each of sixteen sub- moulds being used to produce a block of the third course. The sub-moulds are I.....
arranged in the third mould in four rows of eight sub-moulds, to form a substantially rectangular mould, as shown. The first row comprises a sub* mould used to produce a block of the second course, followed by two sub: moulds each used to produce a block of the third course, followed by two sub- moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by a sub- mould used to produce a block of the second course. The second row comprises a sub-mould used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by a sub-mould used to produce a block of the third course. The third row comprises a sub-mould used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by a sub-mould used to produce a block of the second course. The fourth row comprises a submould used to produce a block of the third course, followed by two submoulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by two sub-moulds each used to produce a block of the second course, followed by a sub-mould used to produce a block of the third course. This arrangement of the sub-moulds in the first row, second, third row and fourth row provides a third mould which has two opposite sides 4', 5' which are substantially parallel to each other. Having a mould which has two opposite sides which are S substantially parallel to each other, allows the blocks produced by such a mould:::.
to be easily lifted.
The sixteen blocks of the second course and sixteen blocks of the third course manufactured in each of two moulding operations of the third mould, are: all packaged together in two layers, with sixteen blocks of the second course * **** and sixteen blocks of the third course in each layer. * : :: Referring to Figure 4, it can be seen that the second circular area comprises two centre blocks 0, each semicircular in shape, forming a centrepiece, sixteen blocks 1 in a first course surrounding the centre blocks, thirty two blocks 2 of a second course surrounding the first course and thirty two blocks 3 of a third course surrounding the second course, and forty eight blocks 4 of a fourth course surrounding the third course, forty eight blocks 5 of a fifth course surrounding the fourth course and forty eight blocks 6 of a sixth course surrounding the fifth course.
The centre blocks, and the blocks for the first, second and third courses are manufactured as given above for the first circular area.
The blocks of the fourth course, the blocks of the fifth course and the blocks of the sixth course are manufactured using moulding operations of a fourth mould (see Figure 5). Eight blocks of the fourth course, eight blocks of the fifth course, and eight blocks of the sixth course are manufactured in each of six moulding operations of the fourth mould.
The fourth mould comprises twenty four sub-moulds, each of eight submoulds being used to produce a block of the fourth course, each of eight sub- moulds being used to produce a block of the fifth course, and each of eight sub- moulds being used to produce a block of the sixth course. The sub-moulds are arranged in the fourth mould in three rows of eight sub-moulds, to form a substantially rectangular mould, as shown. The first row comprises a sub- mould used to produce a block of the fourth course, followed by two sub- moulds each used to produce a block of the sixth course, followed by two sub- S...
moulds each used to produce a block of the fourth course, followed by two sub- moulds each used to produce a block of the sixth course, followed by a sub- mould used to produce a block of the fourth course. The second row comprises S.....
eight sub-moulds, each used to produce a block of the fifth course. The third row comprises a sub-mould used to produce a block of the sixth course, . followed by two sub-moulds each used to produce a block of the fourth course, : . followed by two sub-moulds each used to produce a block of the sixth course, followed by two sub-moulds each used to produce a block of the fourth course, followed by a sub-mould used to produce a block of the sixth course. This arrangement of the sub-moulds in the first row, the second row and the third row provides a fourth mould which has two opposite sides 6, 7 which are substantially parallel to each other. Having a mould which has two opposite sides which are substantially parallel to each other, allows the blocks produced by such a mould to be easily lifted.
The blocks of the fourth course, the blocks of the fifth course and the blocks of the sixth course are packaged together, after their manufacture. The eight blocks of the fourth course, eight blocks of the fifth course and eight blocks of the sixth course manufactured in each of the six moulding operations of the fourth mould, are all packaged together in six layers, with eight blocks of the fourth course, eight blocks of the fifth course and eight blocks of the sixth course in each layer.
It is thus possible to manufacture blocks for use in paving circular areas having different radii. When the circular area comprises a centrepiece and first, second and third courses, the radius is approximately 700mm, and when the circular area comprises a centrepiece and first, second, third, fourth, fifth and sixth courses, the radius is approximately 1300mm.
Each of the first, second, third and fourth moulds comprises a frame, and a plurality of separators to form sub-moulds within the mould. Each of the moulds is open at a top and a bottom thereof. .....
The method of manufacturing the blocks is carried out using a plurality.
of moulding machines. Each moulding machine comprises an interchangeable mould head and an interchangeable mould. The mould head comprises one plate supported on an arm, for each sub-mould of the mould.
The method comprises placing each of the first, second, third and fourth *::: :* moulds on a removable base of a different moulding machine, filling the mould * : * with material for the blocks, pressing the material into the mould using the mould head, the or each plate of the mould head pressing material into a sub- mould of the mould, removing the mould head from the mould, removing the mould from the blocks, removing the blocks on the base from the moulding machine, and allowing the blocks to set.
Each of the blocks is manufactured from concrete. Each of the blocks of a course comprises first and second curved ends and substantially straight sides, which converge from the first end towards the second end, as shown in Figures 1 and 4. The substantially straight sides may be approximately 200mm in length. Each of the blocks of a course comprises one or more nibs (not shown), used to provide proper separation of the blocks when used for paving the circular areas.
When used in this specification and claims, the terms "comprises" and "comprising" and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.
The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof. * ** * * * **.* * * I... * *** * * * S. S

Claims (30)

1. A method of manufacturing blocks for use in paving a circular area, comprising manufacturing at least one centre block for producing a centrepiece of the circular area, using one or more moulding operations of a first mould, manufacturing blocks of a first course for surrounding the centre block, using one or more moulding operations of a second mould, and manufacturing blocks of a second course for surrounding the first course and blocks of a third course for surrounding the second course, using one or more moulding operations of a third mould.
2. A method according to claim 1 which comprises manufacturing two S.....
centre blocks, using one moulding operation of the first mould. *.S.
S S...
3. A method according to claim 1 or claim 2 which comprises) manufacturing a plurality of the blocks of the first course in the or each moulding operation of the second mould.
4. A method according to claim 3 which comprises manufacturing eight blocks of the first course in the or each moulding operation of the second mould.
5. A method according to claim 4 which comprises manufacturing eight blocks of the first course in each of two moulding operations of the second mould.
6. A method according to any preceding claim in which the second mould comprises a plurality of sub-moulds, each sub-mould being used to produce a block.
7. A method according to any preceding claim which comprises manufacturing a plurality of the blocks of the second course and a plurality of the blocks of the third course in the or each moulding operation of the third mould.
8. A method according to claim 7 which comprises manufacturing eight * blocks of the second course and eight blocks of the third course in the or each: moulding operation of the third mould. * *
9. A method according to claim 8 which comprises manufacturing eight blocks of the second course and eight blocks of the third course in each of four: : : :* moulding operations of the third mould. : *:
10. A method according to any preceding claim in which the third mould comprises a plurality of sub-moulds, each sub-mould being used to produce a block.
11. A method according to claim 10 in which the sub-moulds are arranged in the third mould to provide a mould which has two opposite sides which are substantially parallel to each other.
12. A method according to claim 10 or claim 11 in which the third mould comprises sixteen sub-moulds, each of eight sub-moulds being used to produce a block of the second course, and each of eight sub-moulds being used to produce a block of the third course.
13. A method according to claim 12 in which the sub-moulds are arranged in the third mould in two rows of eight sub-moulds, to form a substantially rectangular mould.
14. A method according to claim 13 in which the first row comprises a submould used to produce a block of the second course, followed by two submoulds each used to produce a block of the third course, followed by two sub- moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by a sub- mould used to produce a block of the second course.
S * S*
15. A method according to claim 13 or claim 14 in which the second row comprises a sub-mould used to produce a block of the third course, followed by ***..* two sub-moulds each used to produce a block of the second course, followed by two sub-moulds each used to produce a block of the third course, followed by * :: :* two sub-moulds each used to produce a block of the second course, followed by *: a sub-mould used to produce a block of the third course.
16. A method according to any preceding claim which comprises manufacturing blocks of at least one further course for surrounding the third course, using one or more moulding operations of a fourth mould.
17. A method according to claim 16 which comprises manufacturing blocks of a fourth course for surrounding the third course, blocks of a fifth course for surrounding the fourth course, and blocks of a sixth course for surrounding the fifth course, using one or more moulding operations of the fourth mould.
18. A method according to claim 17 which comprises manufacturing a plurality of the blocks of the fourth course, a plurality of the blocks of the fifth course and a plurality of the blocks of the sixth course in the or each moulding operation of the fourth mould.
19. A method according to claim 18 which comprises manufacturing eight blocks of the fourth course, eight blocks of the fifth course, and eight blocks of the sixth course in the or each moulding operation of the third mould.
20. A method according to claim 19 which comprises manufacturing eight blocks of the fourth course, eight blocks of the fifth course, and eight blocks of the sixth course in each of six moulding operations of the fourth mould. S...
S * SI
21. A method according to any of claims 16 to 20 in which the fourth mould comprises a plurality of sub-moulds, each sub-mould being used to produce a * block. S... * S S...
22. A method according to claim 20 in which the sub-moulds are arranged in: *: : the fourth mould to provide a mould which has two opposite sides which are substantially parallel to each other.
23. A method according to claim 21 or claim 22 in which the fourth mould comprises twenty four sub-moulds, each of eight sub-moulds being used to produce a block of the fourth course, each of eight sub-moulds being used to produce a block of the fifth course, and each of eight sub-moulds being used to produce a block of the sixth course.
24. A method according to claim 23 in which the sub-moulds are arranged in the fourth mould in three rows of eight sub-moulds, to form a substantially rectangular mould.
25. A method according to claim 24 in which the first row comprises a submould used to produce a block of the fourth course, followed by two submoulds each used to produce a block of the sixth course, followed by two sub- moulds each used to produce a block of the fourth course, followed by two sub- moulds each used to produce a block of the sixth course, followed by a sub- mould used to produce a block of the fourth course.
26. A method according to claim 24 or claim 25 in which the second row comprises eight sub-moulds, each used to produce a block of the fifth course.
27. A method according to claim 24, claim 25 or claim 26 in which the third *** row comprises a sub-mould used to produce a block of the sixth course, followed by two sub-moulds each used to produce a block of the fourth course, S.....
followed by two sub-moulds each used to produce a block of the sixth course, followed by two sub-moulds each used to produce a block of the fourth course, *: :: : followed by a sub-mould used to produce a block of the sixth course. . .
28. A method according to any preceding claim in which each of the blocks of a course comprises first and second curved ends and substantially straight sides, which converge from the first end towards the second end.
29. Blocks for use in paving a circular area, manufactured according to the method of any of claims ito 28.
30. A method substantially as described herein with reference to the accompanying drawings.
GB0426905A 2004-12-08 2004-12-08 Moulding paving blocks for a circular area Withdrawn GB2421001A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0426905A GB2421001A (en) 2004-12-08 2004-12-08 Moulding paving blocks for a circular area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0426905A GB2421001A (en) 2004-12-08 2004-12-08 Moulding paving blocks for a circular area

Publications (2)

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GB0426905D0 GB0426905D0 (en) 2005-01-12
GB2421001A true GB2421001A (en) 2006-06-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1131682A (en) * 1965-02-26 1968-10-23 Serbi A G Studiengesellschaft Apparatus for the manufacture of cast concrete products
DE19745081A1 (en) * 1997-10-11 1999-04-15 Sf Koop Gmbh Beton Konzepte Circular cobbled surface in pedestrian zones, and the like
GB2334044A (en) * 1998-02-10 1999-08-11 Marshalls Mono Ltd Method of manufacturing a set of paving blocks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1131682A (en) * 1965-02-26 1968-10-23 Serbi A G Studiengesellschaft Apparatus for the manufacture of cast concrete products
DE19745081A1 (en) * 1997-10-11 1999-04-15 Sf Koop Gmbh Beton Konzepte Circular cobbled surface in pedestrian zones, and the like
GB2334044A (en) * 1998-02-10 1999-08-11 Marshalls Mono Ltd Method of manufacturing a set of paving blocks

Also Published As

Publication number Publication date
GB0426905D0 (en) 2005-01-12

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