GB503412A - Improvements in or relating to the construction of open conduits and like trenches - Google Patents
Improvements in or relating to the construction of open conduits and like trenchesInfo
- Publication number
- GB503412A GB503412A GB2690237A GB2690237A GB503412A GB 503412 A GB503412 A GB 503412A GB 2690237 A GB2690237 A GB 2690237A GB 2690237 A GB2690237 A GB 2690237A GB 503412 A GB503412 A GB 503412A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bearers
- closure
- concrete
- trenches
- relating
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/28—Installations of cables, lines, or separate protective tubing therefor in conduits or ducts pre-established in walls, ceilings or floors
- H02G3/283—Installations of cables, lines, or separate protective tubing therefor in conduits or ducts pre-established in walls, ceilings or floors in floors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
503,412. Service conduits in walls &c. BEYTS, L. S. Oct. 5, 1937, No. 26902. [Class 20 (ii)] Service conduits in walls, floors, &c. of the type adapted to be closed by a removable closure element supported on bearers on opposite sides of the conduit, have the bearers 10 supported and distanced by intermediate spacers 15 which are removed after the concrete has been cast about the bearers to form the conduit. The spacers 15 may be integral with the bearers, in which case they are broken away after the concrete has set. Keying means 14 are provided on the bearers to key them to the cast concrete 11. Seating surfaces 13 may be provided on the bearers to coact with similar seating surfaces on the closure 21, and ribs 16 on the bearers engage with corresponding recesses in the closure to prevent longitudinal movement of the closure sections.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2690237A GB503412A (en) | 1937-10-05 | 1937-10-05 | Improvements in or relating to the construction of open conduits and like trenches |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2690237A GB503412A (en) | 1937-10-05 | 1937-10-05 | Improvements in or relating to the construction of open conduits and like trenches |
Publications (1)
Publication Number | Publication Date |
---|---|
GB503412A true GB503412A (en) | 1939-04-05 |
Family
ID=10251003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2690237A Expired GB503412A (en) | 1937-10-05 | 1937-10-05 | Improvements in or relating to the construction of open conduits and like trenches |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB503412A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3521537A (en) * | 1968-03-19 | 1970-07-21 | George P Forni | Cover arrangement for large receptacles |
GB2133443A (en) * | 1982-11-23 | 1984-07-25 | Poly Bauelemente Ag | Road drainage channel |
US4582450A (en) * | 1984-10-10 | 1986-04-15 | Ronald Neil | Universal manhole adjusting ring |
GB2243638A (en) * | 1990-05-01 | 1991-11-06 | Stanton Plc | Restraining lateral movement of manhole cover |
US5221155A (en) * | 1991-09-24 | 1993-06-22 | Umar, Inc. | Vertically adjustable manhole adjusting ring section |
-
1937
- 1937-10-05 GB GB2690237A patent/GB503412A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3521537A (en) * | 1968-03-19 | 1970-07-21 | George P Forni | Cover arrangement for large receptacles |
GB2133443A (en) * | 1982-11-23 | 1984-07-25 | Poly Bauelemente Ag | Road drainage channel |
US4582450A (en) * | 1984-10-10 | 1986-04-15 | Ronald Neil | Universal manhole adjusting ring |
GB2243638A (en) * | 1990-05-01 | 1991-11-06 | Stanton Plc | Restraining lateral movement of manhole cover |
US5221155A (en) * | 1991-09-24 | 1993-06-22 | Umar, Inc. | Vertically adjustable manhole adjusting ring section |
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