2001 Engineering Geology
SemanticScholar ID: 133715012 MAG: 2934727528

Articulated cover element for a polygonal frame of a manhole, and corresponding manhole

Publication Summary

The cover (1), designed to fit into a polygonal e.g. square or rectangular frame (2), has hinges that can be used optionally on two or more sides of the cover. Each hinge is in the form of a fork in two sections (10, 13) engaging with a pivot (20) fixed to the frame, with one section (13) removable and made in the form of a bolt or sliding pin.

CAER Authors

Avatar Image for John Pickavance

John Pickavance

Bradford Institute for Health Research - Senior Research Fellow

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