METHOD OF AND APPARATUS FOR ADJUSTABLY LEVELING MANHOLE COVERS, GRATES AND THE LIKE

An adjustable leveling structure for manhole covers, grates and the like within ground and similar structures which comprises an annular-walled ring for supporting a cover, grate and the like near its upper edge and mechanically compressible resilient layer means shaped to conform to the wall of the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LEBARON, FRANCIS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	An adjustable leveling structure for manhole covers, grates and the like within ground and similar structures which comprises an annular-walled ring for supporting a cover, grate and the like near its upper edge and mechanically compressible resilient layer means shaped to conform to the wall of the annular ring and disposed in the space between the outer wall of the annular ring and the ground or similar structure when the annular ring is vertically displaced.