GB581815A - Improvements in the manufacture of prestressed concrete sleepers and like beams - Google Patents
Improvements in the manufacture of prestressed concrete sleepers and like beamsInfo
- Publication number
- GB581815A GB581815A GB15923/43A GB1592343A GB581815A GB 581815 A GB581815 A GB 581815A GB 15923/43 A GB15923/43 A GB 15923/43A GB 1592343 A GB1592343 A GB 1592343A GB 581815 A GB581815 A GB 581815A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- wires
- head
- tension
- screws
- 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
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/06—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed for the production of elongated articles
-
- 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
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
-
- 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
- Y10S29/00—Metal working
- Y10S29/042—Tension applied during working
-
- 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
- Y10S52/00—Static structures, e.g. buildings
- Y10S52/07—Synthetic building materials, reinforcements and equivalents
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/39—Cord and rope holders
- Y10T24/3969—Sliding part or wedge
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/38—Laterally related rods independently joined to transverse surface
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)
Abstract
581,815. Reinforced concrete. DOWSETT ENGINEERING CONSTRUCTION, Ltd., BARBER, R. S. V., and LESTER, D. R. Sept. 28, 1943, No. 15923. [Class 20 (iv)] Apparatus for use in the manufacture of prestressed reinforced concrete sleepers and like beams. comprises a stout fixed pedestal 12, 13, having a head-such as pairs of short uprights 14-through which the reinforcing wires can pass, one or more brackets 15 secured to the head, and a wire anchorage plate 17 movable on each bracket and separated from the head by several adjusting screws 18. In operation, the various reinforcing wires, which may pass through a line of moulds and have their other ends suitably anchored, are passed singly or in pairs through holes 19 in a plate 17 and are subjected to tension, e.g., by hydraulic means, screw action, or by means of a winch. When the required tension has been attained the wires are fixed to the plate either by wedges 21 or by ferrules or the like. The screws 18 are adjusted to prevent movement of the plate along its supporting bracket. Concrete is now poured into the moulds and after it has set the screws 18 are turned to relieve the tension on the wires. The plates 17 shown are triangular in shape and have grooves in their bases for engaging guiding fillets 16 on the brackets 15. Specifications 581,827 and 581,828 are referred to.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2511761D US2511761A (en) | 1943-09-28 | Manufacture of prestressed | |
BE459598D BE459598A (en) | 1943-09-28 | ||
GB15923/43A GB581815A (en) | 1943-09-28 | 1943-09-28 | Improvements in the manufacture of prestressed concrete sleepers and like beams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15923/43A GB581815A (en) | 1943-09-28 | 1943-09-28 | Improvements in the manufacture of prestressed concrete sleepers and like beams |
Publications (1)
Publication Number | Publication Date |
---|---|
GB581815A true GB581815A (en) | 1946-10-25 |
Family
ID=10067972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15923/43A Expired GB581815A (en) | 1943-09-28 | 1943-09-28 | Improvements in the manufacture of prestressed concrete sleepers and like beams |
Country Status (3)
Country | Link |
---|---|
US (1) | US2511761A (en) |
BE (1) | BE459598A (en) |
GB (1) | GB581815A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511761A (en) * | 1943-09-28 | 1950-06-13 | Manufacture of prestressed |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2637895A (en) * | 1942-03-21 | 1953-05-12 | Emile Jules Lucien Blaton | Method of tensioning and anchoring wire bundles for prestressed concrete structural elements |
US2827679A (en) * | 1947-01-23 | 1958-03-25 | Blaton Armand Eugene Adolphe | Wire anchoring device |
US2689999A (en) * | 1950-05-26 | 1954-09-28 | Concrete Products Co | Apparatus for manufacturing prestressed concrete structural units |
US2763464A (en) * | 1952-07-26 | 1956-09-18 | Leonhardt Fritz | Apparatus for anchorage of concrete reinforcements |
US2863206A (en) * | 1952-08-27 | 1958-12-09 | Kirchner Ignatz Adolf | Apparatus for prestressing reinforcing wires for reinforced concrete parts in mass production |
US2820606A (en) * | 1952-10-15 | 1958-01-21 | Valenzuela Ricardo Barredo De | Tensioning system |
DE1059820B (en) * | 1952-12-29 | 1959-06-18 | Wilhelm Ludowici Dr Ing | Device for tensioning the reinforcement wires of components |
US2804893A (en) * | 1953-06-08 | 1957-09-03 | Carl F Spickelmier | Power actuated block clamping apparatus and method |
US2948042A (en) * | 1955-03-14 | 1960-08-09 | Ben C Gerwick Inc | Apparatus for making hollow reinforced concrete bodies |
US2886875A (en) * | 1956-11-14 | 1959-05-19 | Concrete Technology Corp | Apparatus and method for releasing loads on stressing beds for making prestressed concrete |
US2949655A (en) * | 1957-02-11 | 1960-08-23 | Jose A Berumen | Method and apparatus for making prestressed spun concrete articles |
US3041702A (en) * | 1957-10-15 | 1962-07-03 | United States Steel Corp | Method of making a prestressed reinforced concrete structure |
US3472031A (en) * | 1967-11-06 | 1969-10-14 | Rai B Kelso | Precast concrete body |
US3478396A (en) * | 1968-01-04 | 1969-11-18 | Emerson Electric Co | Strand chuck |
US3778869A (en) * | 1971-03-15 | 1973-12-18 | American Stress Wire Corp | Apparatus for detensioning stranded cable |
GB1478309A (en) * | 1973-08-23 | 1977-06-29 | Ccl Systems Ltd | Anchorage assembly for use in the prestressing of concrete structures |
IT1149739B (en) * | 1982-02-04 | 1986-12-10 | Ind Prefabbricati Affini Ipa S | PROCEDURE AND EQUIPMENT FOR THE PREFABRICATION OF REINFORCED REINFORCED CONCRETE MANUFACTURES EQUIPPED WITH INSERTS, IN PARTICULAR FOR THE MANUFACTURE OF RAILROADS FOR RAILWAY USE |
IT1206781B (en) * | 1987-04-29 | 1989-05-03 | Scac Spa | PLANT FOR THE MANUFACTURE OF LINEAR MANUFACTURES IN REINFORCED REINFORCED CONCRETE. |
EP4177028A1 (en) * | 2021-11-09 | 2023-05-10 | Elematic Oyj | Apparatus for prestressing reinforcement strands |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US465169A (en) * | 1891-12-15 | Wire-tightener | ||
US791041A (en) * | 1905-03-27 | 1905-05-30 | John W Myers | Molding-flask. |
US1261590A (en) * | 1917-05-24 | 1918-04-02 | Charles M Moore | Wire-stretcher. |
FR680547A (en) * | 1928-10-02 | 1930-05-01 | Manufacturing process for reinforced concrete parts | |
US2171120A (en) * | 1938-05-21 | 1939-08-29 | Edwin W Bullard | Tie wire apparatus |
US2511761A (en) * | 1943-09-28 | 1950-06-13 | Manufacture of prestressed |
-
0
- US US2511761D patent/US2511761A/en not_active Expired - Lifetime
- BE BE459598D patent/BE459598A/xx unknown
-
1943
- 1943-09-28 GB GB15923/43A patent/GB581815A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2511761A (en) * | 1943-09-28 | 1950-06-13 | Manufacture of prestressed |
Also Published As
Publication number | Publication date |
---|---|
BE459598A (en) | |
US2511761A (en) | 1950-06-13 |
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