CH141824A - Retractable manhole cover. - Google Patents
Retractable manhole cover.Info
- Publication number
- CH141824A CH141824A CH141824DA CH141824A CH 141824 A CH141824 A CH 141824A CH 141824D A CH141824D A CH 141824DA CH 141824 A CH141824 A CH 141824A
- Authority
- CH
- Switzerland
- Prior art keywords
- manhole cover
- retractable
- section
- manhole
- cover
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination
Description
Versenkbare Schachtabdeckung. Bei Neuanlagen von Strassen sind die fertig versetzten Schachtabdeckungen, deren Oberseite in Strassenhöhe liegt, beim Walzen ein grosses Hindernis, da denselben immer auszuweichen ist, und infolgedessen die Walzarbeit mit Zeitverlust vorgenommen werden muss. Überdies kann unmittelbar rings um den Schacht gar nicht gewalzt wer den. Bei fertigen Strassen kann fast ohne Ausnahme das Nichtübereinstimmen von Strassenhöhe und Schachtdeckeloberseite kon statiert werden.
Gegenstand vorliegender Erfindung ist nun eine versenkbare Schachtabdeckung, wo durch obige Übelstände vollständig behoben werden. Beiliegende Zeichnung stellt ein Ausführungsbeispiel dar, und zwar zeigt Fig. 1 einen Schnitt A-B, während Fig. n einen Schnitt C-D darstellt. Wie aus den Figuren ersichtlich, besteht die dargestellte Schachtabdeckung aus einem festen, untern Teilstücke a, das auf der Betonschachtwand H- aufliegt , und einem in dasselbe versenk- baren, obern Teilstück b.
Beim Bau der Strasse sind die beiden Stücke zuerst voll ständig ineinander geschoben, das heisst der obere Schachtdeckelrand steht auf X, wobei die Strasse ohne Schwierig keit gewalzt werden kann. Dann wird das obere Stück b herausgezogen, und die Aus sparung c im untern Stück a mit Sand oder anderem verwendbaren Material so gefüllt, dass das wieder eingeführte obere Stück mit seinem obern Rand auf Strassenhöhe H steht. Um die Schachtabdeckung später regulieren zu können, kann das Füllmaterial durch Öff nungen<I>d</I> des untern Stückes<I>a</I> abgelassen werden.
Zur Abschliessung dieser dienen Ver- schluss:bl@eche e, die in Führungsrinnen laufen und an ihrem umgebogenen Kopf stücke g gehoben werden können. Das Füh rungsblech h, das fest mit dem obern Teil stück b verbunden ist, verhindert die Auf füllung des Hohlraumes i durch das den Schacht umgebende Material. Zwecks leich ter Verschiebbarkeit des Bleches h wird un mittelbar um den Schacht Sand eingebracht. Das Deckelwiderlager ist in der Figur mit 1 bezeichnet.
Retractable manhole cover. In the case of new systems on roads, the completed manhole covers, the top of which is at road level, are a major obstacle during rolling, since they always have to be avoided, and as a result the rolling work has to be carried out with loss of time. In addition, it is not possible to roll at all directly around the shaft. In the case of finished roads, almost without exception, the mismatch between the height of the road and the top of the manhole cover can be established.
The subject of the present invention is a retractable manhole cover, where the above inconveniences are completely eliminated. The accompanying drawing shows an embodiment, namely Fig. 1 shows a section A-B, while Fig. N shows a section C-D. As can be seen from the figures, the shaft cover shown consists of a fixed, lower part a, which rests on the concrete shaft wall H, and an upper part b, which can be lowered into the same.
When the road is being built, the two pieces are first pushed completely into one another, i.e. the upper edge of the manhole cover is at X, whereby the road can be rolled without difficulty. Then the upper piece b is pulled out, and the recess c in the lower piece a is filled with sand or other usable material so that the re-introduced upper piece is at street level H with its upper edge. In order to be able to regulate the manhole cover later, the filling material can be drained through openings <I> d </I> of the lower part <I> a </I>.
These are closed by closures: bl @ eche e, which run in guide channels and can be lifted at their bent head pieces. The guide plate h, which is firmly connected to the upper part piece b, prevents the filling of the cavity i by the material surrounding the shaft. In order to make the sheet easier to move, sand is introduced directly around the shaft. The cover abutment is denoted by 1 in the figure.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH141824T | 1929-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH141824A true CH141824A (en) | 1930-08-31 |
Family
ID=4398635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH141824D CH141824A (en) | 1929-11-25 | 1929-11-25 | Retractable manhole cover. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH141824A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930295A (en) * | 1957-11-07 | 1960-03-29 | Nathan C Hale | Adjustable manhole frame |
DE1609096B1 (en) * | 1965-02-18 | 1971-01-21 | Guss Und Armaturenwerk Kaisers | Round cast iron manhole cover consisting of frame and cover |
EP0715028A1 (en) * | 1994-11-29 | 1996-06-05 | Frederick George Newman | Road gully/inspection cover assembly |
WO1997037086A1 (en) * | 1996-03-29 | 1997-10-09 | Csr Limited | Device for mounting an access cover |
-
1929
- 1929-11-25 CH CH141824D patent/CH141824A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2930295A (en) * | 1957-11-07 | 1960-03-29 | Nathan C Hale | Adjustable manhole frame |
DE1609096B1 (en) * | 1965-02-18 | 1971-01-21 | Guss Und Armaturenwerk Kaisers | Round cast iron manhole cover consisting of frame and cover |
EP0715028A1 (en) * | 1994-11-29 | 1996-06-05 | Frederick George Newman | Road gully/inspection cover assembly |
WO1997037086A1 (en) * | 1996-03-29 | 1997-10-09 | Csr Limited | Device for mounting an access cover |
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