Adjustable manhole frame assembly

Details Adjustable manhole frame assembly Adjustable manhole frame assembly

1975-03-18

1977-08-02

Faw, Jr., Price C.

Static structures (e.g., buildings)

With entrance for persons or objects in horizontal or...

With additional enclosure structure; e.g., manhole

52 19, 403 62, 403362, 285404, 403109, E02D 2914

Patent

active

040387895

ABSTRACT:
An adjustable manhole frame assembly for underground conduits, catch basins, or the like, in which telescoped upper and lower frames include screw fasteners engaging in vertically-angulated slots for adjusting the frames axially and angularly to orient the top frame and its cover in relation to an upper surface such as the running surface of a street, or the like.

REFERENCES:
patent: 638692 (1899-12-01), Banwell
patent: 640304 (1900-01-01), Lowe
patent: 1431612 (1922-10-01), Wittner
patent: 2749999 (1956-06-01), Schmid

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