CA1119785A - Automatic manufacture of concrete building blocks - Google Patents
Automatic manufacture of concrete building blocksInfo
- Publication number
- CA1119785A CA1119785A CA000302187A CA302187A CA1119785A CA 1119785 A CA1119785 A CA 1119785A CA 000302187 A CA000302187 A CA 000302187A CA 302187 A CA302187 A CA 302187A CA 1119785 A CA1119785 A CA 1119785A
- Authority
- CA
- Canada
- Prior art keywords
- mould
- inserts
- concrete
- blocks
- floor
- 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
Links
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
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Building Environments (AREA)
- Laminated Bodies (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A machine for automatically manufacturing batches of concrete blocks incorporating foamed polystyrene inserts on mating contact with the concrete of the blocks comprises a magazine for the inserts, a mould for a batch of blocks, a bin and truck arrangement for storing then transferring concrete grout to the mould, and another truck for transferring batches of inserts from the magazine to the mould. The mould is open at the bottom and can be held in a raised position above the floor and then lowered to the floor which then closes off the bottom of the mould.
In the process using the machine, a batch of inserts is transferred to the mould when it is in its raised position and are secured within the mould by impalement on spikes mounted on the underside of a cover plate forming the top of the mould. The mould is then lowered until closed off by the floor.
A suitable quantity of grout is transferred to the lower mould where it is compressed by a ram and compacted by a vibrator.
When the concrete grout has set the mould is drawn upwards off the finished blocks leaving them on the floor which is fixed if the remainder of the machine is movable, or is movable if the remainder of the apparatus is fixed. The inserts in the block thus formed are embedded in the concrete in mating contact therewith. The machine operates respectively making a series of batches of blocks.
A machine for automatically manufacturing batches of concrete blocks incorporating foamed polystyrene inserts on mating contact with the concrete of the blocks comprises a magazine for the inserts, a mould for a batch of blocks, a bin and truck arrangement for storing then transferring concrete grout to the mould, and another truck for transferring batches of inserts from the magazine to the mould. The mould is open at the bottom and can be held in a raised position above the floor and then lowered to the floor which then closes off the bottom of the mould.
In the process using the machine, a batch of inserts is transferred to the mould when it is in its raised position and are secured within the mould by impalement on spikes mounted on the underside of a cover plate forming the top of the mould. The mould is then lowered until closed off by the floor.
A suitable quantity of grout is transferred to the lower mould where it is compressed by a ram and compacted by a vibrator.
When the concrete grout has set the mould is drawn upwards off the finished blocks leaving them on the floor which is fixed if the remainder of the machine is movable, or is movable if the remainder of the apparatus is fixed. The inserts in the block thus formed are embedded in the concrete in mating contact therewith. The machine operates respectively making a series of batches of blocks.
Description
he invention relates to automatic manufacture of building blocks having at least one heat-insulating insert of foamed plastics material, such as polyst~rene, embedded in the concrete in mating contact therewith by casting concrete grout around the heat-insulating insert.
Building blocks having heat-insulating inserts of foamed plastics material have frequently been produced heretofore by introducing the inserts subsequently by hand into hollow spaces provided in formed concrete blocks. This is not only very costly ; 10 in labour, but also technically completely inadequate, because the inserts fall out easily when the blocks are handled and because moisture forms around the insulating inserts in the gaps that are produced and very substantially reduces the insulating effect.
The invention provides a mould for making building blocks having at least one heat-insulating insert of foamed plastic, for example polystyrene, embedded in the concrete in mating contact.
; The mould is adapted for production of the blocks fully automatically ~`
by casting concrete grout around the heat-insulating insert, as a result of which not only is economic manufacture possible, but also the insulating effect and a secure hold of the insert in the building block is ensured because of the ahsence of gaps.
According to the invention, there is provided a mould for manufacturing concrete building blocks which are provided with at least one insulating insert and at least one cavity, the mould ~;
comprising a box, the bottom surface o~ which is open and the top surface of which is covered by a cover plate having apertures, prismatic element or elements projecting downwardly from the cover-plate into the interior of the mould for the purpose of formin~ the or each cavity, one or more bridge portions extending between apertures in the said plate, a piece of insulating material extend-ing the width and depth of the mould located on the or each bridge portion and being covered by the bridge portion, and being held on the bridge portion by holding means.
~- _ 3 _ 7~
A preferred embodiment of the invention will now ; be described in detail hereinafter with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figs. 1, 2 and 3 are elevations of a machine for use with the mold of the present invention, these figures showing the machine in three different working positions;
Fig. 4 is a plan view of a magazine and a feed truck for insulating inserts in the machine of Figs. 1, 2 and 3;
Figs. 5, 6 and 7 are respectively a plan view, a side view in the direction of the arrow VI in Fig. 5 and a section on the line VII-VII in Fig. 5 of a mould used in the machine of Figs.
1 to 4;
Fig. 8 is a plan view of an insulating insert, and Fig. 9 shows a finished block with an insulating insert incorporated by casting.
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DET.~ILED ~ESCRIPTION OF T~IE PREFE~RED EMBODIMENT
Figs. 1 to 4 show a machine for manufacturing batches of four concrete blocks with insulating inserts in accord~ce with the present invention. The machine has a frame 2 movable on the floor or ground 1, a block making or produc~ion mould 3 which can be raised and lowered by means of a hydraulic unit 4, a pressure ram 5, which can likewise be raised and lowered by means of a hydraulic unit 6, a hopper-shaped bin 8 with a closure 9 for the concrete grout, and a truck 10 movable along a track 10~ for ~;
supplying the concrete grout to the production mould 3. A
vibrator 7 is attached to t~production mould 3.
This apparatus permits simultaneous production of four concrete blocks 11 with an insulating insert 12, a block of this kind being shown on a larger scale in Fig.9. Of course, the repres-entations according to Figs. 8 and 9 show only one of many alter-nati~-eforms of such insulating inserts and insulating blocks. What .. i , ; is important is only that the synthetic-foam insulating insert 12 is incorporated in the concrete of the block by casting and is stuck undetachably therein through mating contact and friction and that between the insulating insert and the concrete of the block 20 there are no gaps of any kind. ~ -Features of the machine serve to introduce the insulating inserts 12 automatically into the production mould 3 will now be .: , ; described.
A holder 17 is mounted on the frame 2 by means of brackets ~-25 16 and contains a magazine 18 in accordance with Fig.4. On a per-pendicular rear wall 19 of this magazine there are mounted four pairs of perpendicular side walls 20 disposed normal to the rear wall. The shafts formed in this way are each defined at the bottom by a tongue 21 projecting from the rear wall and in each shaft there is room for four insulating inserts 12 which are inserted manually from above.
. :
.: ,~ i~, ;, So that the insulating inserts may be in the correct position, guide bars 22 (shown in Fig.4) are provided on both sides in the upper part of the walls 20, the guide bars engaging in grooves in the insulating i~lserts and ensuring perpendicular lowering thereof.
The side walls 20 do not extend downwardly as far as the tongues 21, but leave a space free in between so as to allow the action of an ~ arrangement for gripping and withdrawing the insulating inserts 12.
truck 25 serves to withdraw the four lowest insulating inserts 12 at any given time from the magazine 18, the truck running by means of a chassis with four wheels 26 on two laterally mounted rails 27, which lie parallel in the direction of travel of the production frame 2 and are arranged inwardly of the wheels 2' :~ of the production frame 2. A platform 28 is attached to the i:
chassis of the truck 25 so that it can be raised and lowered thereon : 15~ by being mounted by means of links 29 on the axles of the wheels 26.
: Mounted on the top of the platform 28 and projecting upwardly therefrom are pairs of bars 30 extend.ing parallel to the direction of travel, one bar of each pair bearing a flat steel -.
' spring 31, the distance of which from the other bar of the pair is :- ~"J`
a little smaller than the width of the insulating insert 12 to be gripped.
A swing arm 33 acts on the platform 28 on both sides via .` links 32 and is mounted by means of a pivot 34 on the holder 17 and `;i can be actuated by a hydraulic cylinder 35, whereby the truck 25 :~
. 25 can be shifted from the outer end position shown in Figs.l and 3 into the inner end position shown in ~ig.2, in which its right-hand pair of wheels strikes against a stop 36 on the rails 27, as a result of whi~h the links 29 adjust themselves in a steeper position and the pla'cform 28 is raised a little, as shown in Fig.2.
30 The mould 3 serving to make the blocks is shown in Figs.5,6 and 7. It con-sists o a box which i.s open at the.bottom and has a cover plate 40 a~d the shape and.siæe n_cessary for .Eour block-s.
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.
. : -, . . .
to be made and arranged side by side. The cover plate 40 has filling openings 41 and 41' for each block which correspond to the two concrete cross-sections of the blocks separated from one another by an insulating insert 12, eight cores 42 being inserted in each of the openings 41, these cores not extending as far as the bottom and corresponding to as many cavities in the finished block which are closed on five sides.
Above the spaces in the mould which accommodate the -~
insulating inserts 12 bridge portions 43 are fixed, extending between openings 41. As shown in Figure 7 these bridge portions are thicker than and are therefore strengthened as compared with the remainder of the cover plate 40. The portions 43 carry spikes 44 to enable the insulating inserts to be temporarily retained.
As can be seen from Figures 5 and 8, the shape of the bridge portion 43 conforms to the piece of insulating material 12, so that the bridge portion 43 covers the insulating material. Side pieces or edges 45 project from the cover plate 40 and define laterally a track 46 forming an extension of the track 10' for the concrete-grout truck 10. Finally, openings 47 are provided 20 in the side wall for inserting the insulating inserts 12, the ~ ;
openings being defined by lateral edges 48 extending obliquely towards one another in order to facilitate insertion.
The machine operates in the following manner~
The production process begins in the position according to Fig. 1, in which the four pairs of bars 30 of the feed truck 25 engage the four lowest insulating inserts 12 resting on the tongues 21. The truck 25 is thereupon moved to the right by means of the hydraulic cylinder 35 into the position according to Fig~ 2, `
the four inserts being carried alongO When the front wheels of the truck 25 strike against the stops 36, the platform 28 is raised into the position shown in Fig. 2 by the thrust of the levers 33, the spikes 44 penetrating into the insulating inserts 12. This is followed by lowering of the platform 28 by swinging the levers ,~ 7 33 in the opposite direction, the inserts remaining on the spikes, and the moving out of the feed truck 25 into the initial position shown in Figs. 1 and 3 takes place. The production mould 3 is thereupon lowered together with the inserts 12 on to the floor 1 (Fig. 3) and the truck 10, ` - ~, '' , ::
`,-` ' ' ~ .
,'1 :., ''~', . ', :
.
'~ `
;': :
: , which has meanwhile been Eilled with concrete grout, is run on to the cover plate 40, following which the hollow spaces of the mould are filled.
Pressing in of the concrete by the lowered pressure ram 5 and compacting by the vibrator 7 follow, and then after waitina for the concrete to set, the mould is drawn off upwards hydraulically from the finished blocks. The finished building blocks are left resting on the floor, whereas the frame 2 is moved on its wheels 2' to the next working station. Instead of the blocks being made on the floor, they may also be made on a removable support, the frame 2 being then designed to he stationa~y.
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!
Building blocks having heat-insulating inserts of foamed plastics material have frequently been produced heretofore by introducing the inserts subsequently by hand into hollow spaces provided in formed concrete blocks. This is not only very costly ; 10 in labour, but also technically completely inadequate, because the inserts fall out easily when the blocks are handled and because moisture forms around the insulating inserts in the gaps that are produced and very substantially reduces the insulating effect.
The invention provides a mould for making building blocks having at least one heat-insulating insert of foamed plastic, for example polystyrene, embedded in the concrete in mating contact.
; The mould is adapted for production of the blocks fully automatically ~`
by casting concrete grout around the heat-insulating insert, as a result of which not only is economic manufacture possible, but also the insulating effect and a secure hold of the insert in the building block is ensured because of the ahsence of gaps.
According to the invention, there is provided a mould for manufacturing concrete building blocks which are provided with at least one insulating insert and at least one cavity, the mould ~;
comprising a box, the bottom surface o~ which is open and the top surface of which is covered by a cover plate having apertures, prismatic element or elements projecting downwardly from the cover-plate into the interior of the mould for the purpose of formin~ the or each cavity, one or more bridge portions extending between apertures in the said plate, a piece of insulating material extend-ing the width and depth of the mould located on the or each bridge portion and being covered by the bridge portion, and being held on the bridge portion by holding means.
~- _ 3 _ 7~
A preferred embodiment of the invention will now ; be described in detail hereinafter with reference to the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
Figs. 1, 2 and 3 are elevations of a machine for use with the mold of the present invention, these figures showing the machine in three different working positions;
Fig. 4 is a plan view of a magazine and a feed truck for insulating inserts in the machine of Figs. 1, 2 and 3;
Figs. 5, 6 and 7 are respectively a plan view, a side view in the direction of the arrow VI in Fig. 5 and a section on the line VII-VII in Fig. 5 of a mould used in the machine of Figs.
1 to 4;
Fig. 8 is a plan view of an insulating insert, and Fig. 9 shows a finished block with an insulating insert incorporated by casting.
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.
,, .
.
: :
:- :
. '~' ' ' ~ : ~ ' :
8~
DET.~ILED ~ESCRIPTION OF T~IE PREFE~RED EMBODIMENT
Figs. 1 to 4 show a machine for manufacturing batches of four concrete blocks with insulating inserts in accord~ce with the present invention. The machine has a frame 2 movable on the floor or ground 1, a block making or produc~ion mould 3 which can be raised and lowered by means of a hydraulic unit 4, a pressure ram 5, which can likewise be raised and lowered by means of a hydraulic unit 6, a hopper-shaped bin 8 with a closure 9 for the concrete grout, and a truck 10 movable along a track 10~ for ~;
supplying the concrete grout to the production mould 3. A
vibrator 7 is attached to t~production mould 3.
This apparatus permits simultaneous production of four concrete blocks 11 with an insulating insert 12, a block of this kind being shown on a larger scale in Fig.9. Of course, the repres-entations according to Figs. 8 and 9 show only one of many alter-nati~-eforms of such insulating inserts and insulating blocks. What .. i , ; is important is only that the synthetic-foam insulating insert 12 is incorporated in the concrete of the block by casting and is stuck undetachably therein through mating contact and friction and that between the insulating insert and the concrete of the block 20 there are no gaps of any kind. ~ -Features of the machine serve to introduce the insulating inserts 12 automatically into the production mould 3 will now be .: , ; described.
A holder 17 is mounted on the frame 2 by means of brackets ~-25 16 and contains a magazine 18 in accordance with Fig.4. On a per-pendicular rear wall 19 of this magazine there are mounted four pairs of perpendicular side walls 20 disposed normal to the rear wall. The shafts formed in this way are each defined at the bottom by a tongue 21 projecting from the rear wall and in each shaft there is room for four insulating inserts 12 which are inserted manually from above.
. :
.: ,~ i~, ;, So that the insulating inserts may be in the correct position, guide bars 22 (shown in Fig.4) are provided on both sides in the upper part of the walls 20, the guide bars engaging in grooves in the insulating i~lserts and ensuring perpendicular lowering thereof.
The side walls 20 do not extend downwardly as far as the tongues 21, but leave a space free in between so as to allow the action of an ~ arrangement for gripping and withdrawing the insulating inserts 12.
truck 25 serves to withdraw the four lowest insulating inserts 12 at any given time from the magazine 18, the truck running by means of a chassis with four wheels 26 on two laterally mounted rails 27, which lie parallel in the direction of travel of the production frame 2 and are arranged inwardly of the wheels 2' :~ of the production frame 2. A platform 28 is attached to the i:
chassis of the truck 25 so that it can be raised and lowered thereon : 15~ by being mounted by means of links 29 on the axles of the wheels 26.
: Mounted on the top of the platform 28 and projecting upwardly therefrom are pairs of bars 30 extend.ing parallel to the direction of travel, one bar of each pair bearing a flat steel -.
' spring 31, the distance of which from the other bar of the pair is :- ~"J`
a little smaller than the width of the insulating insert 12 to be gripped.
A swing arm 33 acts on the platform 28 on both sides via .` links 32 and is mounted by means of a pivot 34 on the holder 17 and `;i can be actuated by a hydraulic cylinder 35, whereby the truck 25 :~
. 25 can be shifted from the outer end position shown in Figs.l and 3 into the inner end position shown in ~ig.2, in which its right-hand pair of wheels strikes against a stop 36 on the rails 27, as a result of whi~h the links 29 adjust themselves in a steeper position and the pla'cform 28 is raised a little, as shown in Fig.2.
30 The mould 3 serving to make the blocks is shown in Figs.5,6 and 7. It con-sists o a box which i.s open at the.bottom and has a cover plate 40 a~d the shape and.siæe n_cessary for .Eour block-s.
. .
.
. : -, . . .
to be made and arranged side by side. The cover plate 40 has filling openings 41 and 41' for each block which correspond to the two concrete cross-sections of the blocks separated from one another by an insulating insert 12, eight cores 42 being inserted in each of the openings 41, these cores not extending as far as the bottom and corresponding to as many cavities in the finished block which are closed on five sides.
Above the spaces in the mould which accommodate the -~
insulating inserts 12 bridge portions 43 are fixed, extending between openings 41. As shown in Figure 7 these bridge portions are thicker than and are therefore strengthened as compared with the remainder of the cover plate 40. The portions 43 carry spikes 44 to enable the insulating inserts to be temporarily retained.
As can be seen from Figures 5 and 8, the shape of the bridge portion 43 conforms to the piece of insulating material 12, so that the bridge portion 43 covers the insulating material. Side pieces or edges 45 project from the cover plate 40 and define laterally a track 46 forming an extension of the track 10' for the concrete-grout truck 10. Finally, openings 47 are provided 20 in the side wall for inserting the insulating inserts 12, the ~ ;
openings being defined by lateral edges 48 extending obliquely towards one another in order to facilitate insertion.
The machine operates in the following manner~
The production process begins in the position according to Fig. 1, in which the four pairs of bars 30 of the feed truck 25 engage the four lowest insulating inserts 12 resting on the tongues 21. The truck 25 is thereupon moved to the right by means of the hydraulic cylinder 35 into the position according to Fig~ 2, `
the four inserts being carried alongO When the front wheels of the truck 25 strike against the stops 36, the platform 28 is raised into the position shown in Fig. 2 by the thrust of the levers 33, the spikes 44 penetrating into the insulating inserts 12. This is followed by lowering of the platform 28 by swinging the levers ,~ 7 33 in the opposite direction, the inserts remaining on the spikes, and the moving out of the feed truck 25 into the initial position shown in Figs. 1 and 3 takes place. The production mould 3 is thereupon lowered together with the inserts 12 on to the floor 1 (Fig. 3) and the truck 10, ` - ~, '' , ::
`,-` ' ' ~ .
,'1 :., ''~', . ', :
.
'~ `
;': :
: , which has meanwhile been Eilled with concrete grout, is run on to the cover plate 40, following which the hollow spaces of the mould are filled.
Pressing in of the concrete by the lowered pressure ram 5 and compacting by the vibrator 7 follow, and then after waitina for the concrete to set, the mould is drawn off upwards hydraulically from the finished blocks. The finished building blocks are left resting on the floor, whereas the frame 2 is moved on its wheels 2' to the next working station. Instead of the blocks being made on the floor, they may also be made on a removable support, the frame 2 being then designed to he stationa~y.
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- 8 - ;
!
Claims (3)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A mould for manufacturing concrete building blocks which are provided with at least one insulating insert and at least one cavity, the mould comprising a box, the bottom surface of which is open and the top surface of which is covered by a cover plate having apertures, prismatic element or elements projecting down-wardly from the cover plate into the interior of the mould for the purpose of forming the or each cavity, one or more bridge portions extending between apertures in the said plate, a piece of insulating material extending the width and depth of the mould located on the or each bridge portion and being covered by the bridge portion, and being held on the bridge portion by holding means.
2. A mould as claimed in claim 1 in which the holding means comprise a downwardly projecting spike.
3. A mould according to claim 1, in which the bridge portion is strengthened as compared with the remainder of the cover plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT315577A AT352602B (en) | 1977-05-04 | 1977-05-04 | DEVICE FOR THE AUTOMATIC PRODUCTION OF CONSTRUCTION BLOCKS |
| ATA3155/77 | 1977-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1119785A true CA1119785A (en) | 1982-03-16 |
Family
ID=3546171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000302187A Expired CA1119785A (en) | 1977-05-04 | 1978-04-27 | Automatic manufacture of concrete building blocks |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS53137221A (en) |
| AT (1) | AT352602B (en) |
| AU (1) | AU3522778A (en) |
| BE (1) | BE866590A (en) |
| BR (1) | BR7802726A (en) |
| CA (1) | CA1119785A (en) |
| CH (1) | CH639893A5 (en) |
| DE (2) | DE7812871U1 (en) |
| DK (1) | DK147480C (en) |
| FI (1) | FI781283A (en) |
| FR (1) | FR2389470B1 (en) |
| GB (1) | GB1604687A (en) |
| IE (1) | IE46815B1 (en) |
| IT (1) | IT1107411B (en) |
| NL (1) | NL177806C (en) |
| SE (1) | SE426457B (en) |
| YU (1) | YU205277A (en) |
| ZA (1) | ZA782566B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATA186782A (en) * | 1982-05-12 | 1989-08-15 | Naegele & Co Bau | FILLER BODY ELEMENT FOR CEILING OR WALL ELEMENTS |
| AT398724B (en) * | 1983-11-03 | 1995-01-25 | Bau Innovation Gmbh & Co | Device for manufacturing building blocks having insulating inserts and method of manufacturing such building blocks |
| GB8616105D0 (en) * | 1986-07-02 | 1986-08-06 | Concrete Masonry Ltd | Building blocks |
| DK0566084T3 (en) * | 1992-04-16 | 1996-06-03 | Schwenk Baustoffwerke Kg E | Method and apparatus for making stone composite panels |
| EP1726732A1 (en) * | 2005-05-20 | 2006-11-29 | Przedsiebiorstwo Produkcyjno Handlowo Uslugowe Jacek Sukiennik | Building block |
| IT1399391B1 (en) * | 2010-04-07 | 2013-04-16 | Badin | "PROCEDURE FOR THE MANUFACTURE OF MULTI-LAYER COMPOSITE ELEMENTS FOR BUILDING CONSTRUCTION AND EQUIPMENT TO CARRY OUT THIS MANUFACTURING PROCESS" |
| CN103370180B (en) * | 2010-10-22 | 2015-09-16 | 林儿庆 | For the mobile production system of cement plate |
| US12017380B2 (en) | 2019-01-18 | 2024-06-25 | Benjamin Baader | Adjustable apparatus, system and method for constructing insulated concrete forms |
| CA3069028A1 (en) * | 2020-01-21 | 2021-07-21 | Benjamin BAADER | An adjustable apparatus, system and method for constructing insulated concrete forms |
| CN113650134A (en) * | 2021-08-17 | 2021-11-16 | 徐淑华 | Gangue building block mould for road building |
| CN114701056A (en) * | 2022-04-06 | 2022-07-05 | 王香昌 | Heat-insulation building block processing system and method for building engineering construction |
| CN114905620B (en) * | 2022-04-19 | 2024-05-14 | 湖南景辰生态环保科技有限公司 | Production equipment and production method of self-heat-preservation building block |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE502788A (en) * | ||||
| DE873062C (en) * | 1951-06-22 | 1953-04-09 | Muelheimer Bergwerks Ver Ag | Forming machine for the production of hollow stones |
-
1977
- 1977-05-04 AT AT315577A patent/AT352602B/en not_active IP Right Cessation
- 1977-08-29 YU YU02052/77A patent/YU205277A/en unknown
-
1978
- 1978-04-19 AU AU35227/78A patent/AU3522778A/en active Pending
- 1978-04-20 SE SE7804554A patent/SE426457B/en not_active IP Right Cessation
- 1978-04-24 CH CH439378A patent/CH639893A5/en not_active IP Right Cessation
- 1978-04-25 FI FI781283A patent/FI781283A/en not_active Application Discontinuation
- 1978-04-26 FR FR7812318A patent/FR2389470B1/fr not_active Expired
- 1978-04-27 DE DE19787812871U patent/DE7812871U1/en not_active Expired
- 1978-04-27 DE DE2818515A patent/DE2818515C2/en not_active Expired
- 1978-04-27 CA CA000302187A patent/CA1119785A/en not_active Expired
- 1978-04-28 GB GB17042/78A patent/GB1604687A/en not_active Expired
- 1978-04-28 BE BE6046455A patent/BE866590A/en not_active IP Right Cessation
- 1978-05-01 JP JP5078978A patent/JPS53137221A/en active Pending
- 1978-05-01 IE IE868/78A patent/IE46815B1/en not_active IP Right Cessation
- 1978-05-02 NL NLAANVRAGE7804710,A patent/NL177806C/en not_active IP Right Cessation
- 1978-05-02 DK DK189278A patent/DK147480C/en active
- 1978-05-02 BR BR7802726A patent/BR7802726A/en unknown
- 1978-05-03 ZA ZA00782566A patent/ZA782566B/en unknown
- 1978-05-04 IT IT84117/78A patent/IT1107411B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IE46815B1 (en) | 1983-10-05 |
| AU3522778A (en) | 1979-10-25 |
| DE2818515A1 (en) | 1978-11-09 |
| DK147480C (en) | 1985-03-25 |
| FR2389470A1 (en) | 1978-12-01 |
| DE2818515C2 (en) | 1984-06-20 |
| DE7812871U1 (en) | 1981-09-03 |
| DK147480B (en) | 1984-08-27 |
| IT7884117A0 (en) | 1978-05-04 |
| FI781283A (en) | 1978-11-05 |
| GB1604687A (en) | 1981-12-16 |
| ATA315577A (en) | 1978-06-15 |
| IE780868L (en) | 1978-11-04 |
| SE426457B (en) | 1983-01-24 |
| NL177806C (en) | 1985-12-02 |
| SE7804554L (en) | 1978-11-05 |
| BR7802726A (en) | 1978-12-12 |
| NL177806B (en) | 1985-07-01 |
| YU205277A (en) | 1982-10-31 |
| IT1107411B (en) | 1985-11-25 |
| CH639893A5 (en) | 1983-12-15 |
| DK189278A (en) | 1978-11-05 |
| ZA782566B (en) | 1979-04-25 |
| AT352602B (en) | 1979-09-25 |
| FR2389470B1 (en) | 1982-10-22 |
| BE866590A (en) | 1978-08-14 |
| JPS53137221A (en) | 1978-11-30 |
| NL7804710A (en) | 1978-11-07 |
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