Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1974-04-22
1976-03-09
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29241, 29452, 52230, 254 1, B23P 1904
Patent
active
039422380
ABSTRACT:
A method of reinforcing structures by means of tensioned steel cables is disclosed. A hollow conduit or duct is positioned in the structure and secured therein and made a part thereof by pouring concrete in a form surrounding the conduit. A specified number of steel strands, wires or cables are inserted and pushed through the conduit one-by-one by a mechanical strand pusher. A nose guide is positioned on the end of each of the strands if required to enable them to pass easily through the conduit. When the required amount of strands are positioned in the conduit and the concrete has set to a predetermined strength, the strands are stressed thereby putting the structure under compression.
REFERENCES:
patent: 2550898 (1951-05-01), Youngblood et al.
patent: 2958126 (1960-11-01), Shaw et al.
patent: 3225499 (1965-12-01), Kourkene
patent: 3513532 (1970-05-01), Lambert
patent: 3719982 (1973-03-01), Tindal
patent: 3785617 (1974-01-01), Friedrich
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