Road structure – process – or apparatus – Pavement – Vault cover-closure
Patent
1991-11-01
1994-07-12
Dorner, Kenneth J.
Road structure, process, or apparatus
Pavement
Vault cover-closure
249145, E02D 2914, B22C 924
Patent
active
053282949
ABSTRACT:
A manhole casting setting fixture includes a pair of spaced parallel frame rails connected by a plurality of transverse struts. Four loop handles are secured at opposite ends of the frame rails to facilitate manual manipulation and transportation of the fixture. A pair of clamp mounting blocks are positioned in juxtaposed relation centrally on bottom surfaces of the frame rails. A pair of lead screws extend through respective threaded coaxial bores in the mounting blocks and include handle portions to facilitate manual loosening and tightening of the lead screws. A pair of arcuate clamping jaws are rotatably mounted on oppositely directed end portions of the lead screws. In use, a manhole casting is positioned level with the bottom surfaces of the parallel frame rails and the clamping screws are manually adjusted to engage the arcuate clamping jaws with diametrically opposed interior side wall portions of the manhole casting, thereby clamping the casting into proper level alignment with respect to the parallel frame rails. The setting fixture and attached manhole casting are then carried to the manhole and properly positioned relative thereto. The setting fixture maintains the manhole casting in proper position until the casting is permanently set in position by the application of cement, asphalt or other roadway paving material.
REFERENCES:
patent: 645254 (1900-03-01), Forker
patent: 1852928 (1932-04-01), Helling
patent: 3847339 (1974-11-01), Farrell
patent: 4177229 (1979-12-01), Moore
patent: 4318880 (1982-03-01), McIntosh et al.
patent: 4536103 (1985-08-01), Prescott
patent: 4637585 (1987-01-01), Picollo
patent: 4685650 (1987-08-01), Ditcher
patent: 4867411 (1989-09-01), Dorsey et al.
Connolly Nancy P.
Dorner Kenneth J.
Kearns Jerry T.
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