US2779990A - Supporting structure for a mould for a concrete structure - Google Patents
Supporting structure for a mould for a concrete structure Download PDFInfo
- Publication number
- US2779990A US2779990A US279745A US27974552A US2779990A US 2779990 A US2779990 A US 2779990A US 279745 A US279745 A US 279745A US 27974552 A US27974552 A US 27974552A US 2779990 A US2779990 A US 2779990A
- Authority
- US
- United States
- Prior art keywords
- bars
- lazy
- mould
- supporting structure
- supporting
- 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
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S160/00—Flexible or portable closure, partition, or panel
- Y10S160/901—Lazy-tong connected plural strips, slats, or panels
Definitions
- the present invention relates to a supporting structure for a mould for a concrete structure wherein the supporting surface can be dimensionally altered and is defined by a number of bars which are connected together in parallel relationship.
- the supporting structure according to the invention consists in a mechanism permitting movement of the parallel, laterally extending bars toward and away from each other while maintaining the same distance between the two opposite sides of the supporting structure.
- the mechanism connecting the bars to permit movement toward and away from each other consists in at least two elements of the lazy tongs type, with the centres of rotation of each set of crossing members of the lazy-tongs being connected to the parallel bars and the lazy-tong elements extending longitudinally in parallel, spaced-apart relationship.
- Figure 1 shows a plan view of a part of a supporting structure in partially drawn out position.
- Figure 2 represents a cross section along the line II--H in Figure 1.
- Figure 3 is a cross section along the line III--III in Figure 1.
- Figure 4 is a lateral view of another embodiment.
- Figure 5 is a plan view of still another embodiment.
- the bars are indicated by the reference numeral 1.
- the bars 1 extend laterally and are connected to each other by longitudinally extending lazy-tongs 2a and 2b.
- the centers of rotation 3 of the crossing members 4 and 5 forming the lazy-tongs are located on the neutral axes of the lateral bars 1.
- the members 4 and 5 extend through openings 6 in the bars 1.
- Each of the bars 1 can also consist of two or more parts arranged. against each other, and each provided with registering recesses at the inside for the passage of the lazy tongs.
- each bar 1 The head ends 7 ( Figure 3) of each bar 1 are provided with transverse recesses 8 into which the lazy-tongs of an adjacent similar oar system (not shown) can enter when the end portions of the bars in adjacent bar systems are overlapped.
- members 10 are mounted perpendicularly to the bars 1 and, if desired, pass through openings in said bars.
- These members 10 which e. g. are formed as strips, bridge over the openings between the bars 1 and give a better support to the covering material of the mould.
- the above described supporting structures can be applied in rectangular planform as well as in the form of a parallelogram. Dependent upon the resiliency of the bars and/or the lazy tongs bent faces in the moulds can also be supported with the above described structure.
- the distance between the bars can be chosen as large as possible.
- the bars When using sheet-like material the bars can be connected in such a manner that no or only slight bending of this material is to be feared.
- a supporting structure for poured concrete moulds comprising a series of spaced apart elongated bars extending laterally in the structure, and at least two laterally spaced independent lazy-tong elements extending longitudinally in the structure, each of said lazy-tong elements including sets of crossing members, and pivots connecting together said crossing members of each lazy-tong element at their opposite ends and at their intersections, the pivots of said crossing members at said intersections being also pivotally connected to said bars so that said bars are supported solely by said lazy-tong elements and can be moved toward and away from each other to vary the longitudinal dimension of the structure while maintaining a constant lateral dimension and so that the bars can be angularly displaced relative to each other to give said structure a fan-like configuration.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Description
Feb. 5, 1957 c; VAN DEN BOS 2,779,990
SUPPORTING STRUCTURE FOR A MOULD FOR A CONCRETE STRUCTURE Filed April 1, 1952 l lo INVENTOR cme/veL/a 49 249v 30$ United States atent SUPPORTING STRUCTURE FOR A. MOULD FOR A CONCRETE STRUCTURE The present invention relates to a supporting structure for a mould for a concrete structure wherein the supporting surface can be dimensionally altered and is defined by a number of bars which are connected together in parallel relationship.
Such a supporting structure is generally known. However, in the existing structures, the connection of the bars consists of other rigid bars rotatably connected therewith, and an alteration in width always accompanies each alteration in length of the structure. It has appeared in practice that this may lead to undesired complications when preparing such supporting structures.
In order to obviate this drawback the supporting structure according to the invention consists in a mechanism permitting movement of the parallel, laterally extending bars toward and away from each other while maintaining the same distance between the two opposite sides of the supporting structure.
In a preferred embodiment according to the invention the mechanism connecting the bars to permit movement toward and away from each other consists in at least two elements of the lazy tongs type, with the centres of rotation of each set of crossing members of the lazy-tongs being connected to the parallel bars and the lazy-tong elements extending longitudinally in parallel, spaced-apart relationship.
In the drawings embodiments of the supporting structure according to the invention are indicated by way of example:
Figure 1 shows a plan view of a part of a supporting structure in partially drawn out position.
Figure 2 represents a cross section along the line II--H in Figure 1.
Figure 3 is a cross section along the line III--III in Figure 1.
Figure 4 is a lateral view of another embodiment.
Figure 5 is a plan view of still another embodiment.
In the drawings, the bars are indicated by the reference numeral 1. The bars 1 extend laterally and are connected to each other by longitudinally extending lazy- tongs 2a and 2b. The centers of rotation 3 of the crossing members 4 and 5 forming the lazy-tongs are located on the neutral axes of the lateral bars 1.
The members 4 and 5 extend through openings 6 in the bars 1. Each of the bars 1 can also consist of two or more parts arranged. against each other, and each provided with registering recesses at the inside for the passage of the lazy tongs. a
The head ends 7 (Figure 3) of each bar 1 are provided with transverse recesses 8 into which the lazy-tongs of an adjacent similar oar system (not shown) can enter when the end portions of the bars in adjacent bar systems are overlapped.
ICE
In one embodiment (Figure 4) thin shields (9) are fitted on the bars 1 which shields overlap each other like tiles and so seal the openings between the various bars. it is to be understood that the bars 1 of Fig. 4 are also connected by lazy-tong elements, and that the shields 9 mer ly replace flat plates or boards that must be supported by the structure of Figs. 1 to 3 to define a mould.
In another embodiment members 10 (Fig. 5) are mounted perpendicularly to the bars 1 and, if desired, pass through openings in said bars.
These members 10 which e. g. are formed as strips, bridge over the openings between the bars 1 and give a better support to the covering material of the mould.
The above described supporting structures can be applied in rectangular planform as well as in the form of a parallelogram. Dependent upon the resiliency of the bars and/or the lazy tongs bent faces in the moulds can also be supported with the above described structure.
When using slightly resilient covering material the distance between the bars can be chosen as large as possible.
When using sheet-like material the bars can be connected in such a manner that no or only slight bending of this material is to be feared.
What is claimed is:
1. A supporting structure for poured concrete moulds; said structure comprising a series of spaced apart elongated bars extending laterally in the structure, and at least two laterally spaced independent lazy-tong elements extending longitudinally in the structure, each of said lazy-tong elements including sets of crossing members, and pivots connecting together said crossing members of each lazy-tong element at their opposite ends and at their intersections, the pivots of said crossing members at said intersections being also pivotally connected to said bars so that said bars are supported solely by said lazy-tong elements and can be moved toward and away from each other to vary the longitudinal dimension of the structure while maintaining a constant lateral dimension and so that the bars can be angularly displaced relative to each other to give said structure a fan-like configuration.
2. A supporting structure according to claim 1; wherei in said bars have slots therethrough through which said lazy-tong elements extend and wherein said lazy-tong elements are pivotally connected to said bars.
3. A supporting structure according to claim 1; further comprising shield members securedto each of said bars and spanning the gaps between the latter to overlap in one direction and define a surface of a mould for poured concrete.
4. A supporting structure according to claim 1; further comprising stiffening members extending at right angles from each of said bars and engageable with the next adjacent bar to stiifen the structure when said lazy-tong elements are extended. a
. References Cited in the file of. this patent
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2779990X | 1951-04-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2779990A true US2779990A (en) | 1957-02-05 |
Family
ID=19875705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US279745A Expired - Lifetime US2779990A (en) | 1951-04-07 | 1952-04-01 | Supporting structure for a mould for a concrete structure |
Country Status (1)
Country | Link |
---|---|
US (1) | US2779990A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081227A (en) * | 1973-09-03 | 1978-03-28 | Walter Bohmer | Slip form |
US5423503A (en) * | 1990-10-31 | 1995-06-13 | Tokyo Electron Sagami Limited | Plate-like member conveying apparatus |
FR2955877A1 (en) * | 2010-02-03 | 2011-08-05 | Alphi | Elementary module for concrete slabs formwork structure in building, has support beams connected together by transverse connection handles shifted in direction of length of beams, where each handle forms adjustable bridging unit of beams |
US20120144746A1 (en) * | 2009-08-18 | 2012-06-14 | Robert David Black | Access panel |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US655426A (en) * | 1899-01-28 | 1900-08-07 | Guy Bennett Waite | Center for fireproof arches. |
US962295A (en) * | 1909-03-09 | 1910-06-21 | Albert Arnn | False work for building construction. |
US1471387A (en) * | 1920-03-31 | 1923-10-23 | Diamond Israel | Mold for poured structures |
GB512416A (en) * | 1937-12-30 | 1939-09-15 | Fernand Edmond Gregoike | A deformable panel for use in moulding |
US2491827A (en) * | 1946-05-18 | 1949-12-20 | Morello Michael | Worktable |
US2549352A (en) * | 1946-04-01 | 1951-04-17 | Clarence J White | Floral rack |
-
1952
- 1952-04-01 US US279745A patent/US2779990A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US655426A (en) * | 1899-01-28 | 1900-08-07 | Guy Bennett Waite | Center for fireproof arches. |
US962295A (en) * | 1909-03-09 | 1910-06-21 | Albert Arnn | False work for building construction. |
US1471387A (en) * | 1920-03-31 | 1923-10-23 | Diamond Israel | Mold for poured structures |
GB512416A (en) * | 1937-12-30 | 1939-09-15 | Fernand Edmond Gregoike | A deformable panel for use in moulding |
US2549352A (en) * | 1946-04-01 | 1951-04-17 | Clarence J White | Floral rack |
US2491827A (en) * | 1946-05-18 | 1949-12-20 | Morello Michael | Worktable |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4081227A (en) * | 1973-09-03 | 1978-03-28 | Walter Bohmer | Slip form |
US5423503A (en) * | 1990-10-31 | 1995-06-13 | Tokyo Electron Sagami Limited | Plate-like member conveying apparatus |
US20120144746A1 (en) * | 2009-08-18 | 2012-06-14 | Robert David Black | Access panel |
US9540838B2 (en) * | 2009-08-18 | 2017-01-10 | Robert David Black | Access panel |
FR2955877A1 (en) * | 2010-02-03 | 2011-08-05 | Alphi | Elementary module for concrete slabs formwork structure in building, has support beams connected together by transverse connection handles shifted in direction of length of beams, where each handle forms adjustable bridging unit of beams |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2779990A (en) | Supporting structure for a mould for a concrete structure | |
FI56318C (en) | FOUNDATION FACTOR | |
US2116301A (en) | Building toy | |
ATE56068T1 (en) | AWNING ASSEMBLED IN AN ARCH SHAPE. | |
US2818945A (en) | Stair construction | |
EP0915215A2 (en) | Edge protecting border | |
DE1759246C3 (en) | Device for bridging the joint between two parts of a roof covering | |
AT344962B (en) | SPACERS FOR REINFORCEMENT MATS | |
IT1101110B (en) | ELECTRONICALLY OPERATED BUS BAR | |
US1929287A (en) | Apparatus for forming concrete floors | |
JPS6334067Y2 (en) | ||
EP2036798B1 (en) | Reinforcement system for side wall cladding | |
US1907878A (en) | Apparatus for forming concrete floors | |
DE1902816C3 (en) | Formwork form for the production of reinforced concrete rib ceilings | |
AT410646B (en) | DEVICE FOR PRODUCING CONCRETE PARTS | |
DE708978C (en) | Hook bar | |
DE859870C (en) | Formwork, especially made of metal, for the production of reinforced concrete slabs | |
DE3400344C2 (en) | ||
DE1759470C (en) | Bridging device for expansion joints in bridges or similar structures | |
DE1804776A1 (en) | Cover plate made of plastic | |
US2458303A (en) | Center joint form | |
DE1072873B (en) | Easily detachable connection between holding bars and chocolate molds | |
DE1911205U (en) | ELEMENT SET FOR THE CONSTRUCTION OF A HANGED CEILING OR. DGL. | |
FR2704824B1 (en) | Track for vehicle comprising a strip of flexible material. | |
DE2712528A1 (en) | AUXILIARY DEVICE AND METHOD FOR COVERING ROOFS WITH ASPHALT SHINGLES, SLATE SLABS AND SIMILAR ROOFING MATERIAL |