Access tower for manufacture of tunnel tubes

Details Access tower for manufacture of tunnel tubes Access tower for manufacture of tunnel tubes

1981-04-23

1983-12-27

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Traversing, track-mounted

182 625, 182223, E04G 115, E04G 136

Patent

active

044225261

ABSTRACT:
An improved access tower for use in the manufacture of tunnel modules and tunnel sections for building underwater tunnel tubes is provided. The tower is positioned at one end of the tunnel module shells when they are placed on pedestals for rotation and further processing. Assembly of the support framework around the shell is conducted from the top position on the shells. A moveable bridge extends from the tower for access to the top of the shell.

REFERENCES:
patent: 619439 (1899-02-01), Riecke
patent: 849222 (1907-04-01), Fleming
patent: 1348872 (1920-08-01), Gulich
patent: 3031027 (1962-04-01), Mitchell
Wiley Manufacturing Co., Brochure, dated 1973.
Construction Method and Equipment, dated Sep. 1973, McGraw-Hill Publication.

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