Adjustable manhole frame and method of construction and...

Details Adjustable manhole frame and method of construction and... Adjustable manhole frame and method of construction and...

E - Fixed Constructions

02

D

94/12

E02D 29/14 (2006.01)

Patent

CA 1204317

ADJUSTABLE MANHOLE FRAME AND METHOD OF CONSTRUCTION AND INSTALLATION ABSTRACT An adjustable cast iron or ductile iron manhole frame and method of construction utilizing a formed concrete base or a base of brick and cement mortar that sup- ports both the frame and the pavement. The height and angle of the frame are determined by the method of construction which sets the height and angle of the formed concrete base. The frame is further adapted to receive and hold the manhole cover, and the frame includes an arched section to hold it securely to the con- crete base or to filler material when in a raised position.

443899

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