3,991,576 



FLOATING BREAKWATER 



Sandanori Tazaki, Kodairo, and Yoio Ishida, Kunitachi, both 



of Japan, assignors to Bridgestone Tire Company Limited, 



Tokyo, Japan 



DivisionofSer. No. 398,368, Sept. 18, 1973. This application 



Dec. 27, 1974, Ser. No. 536,783 



Claims priority, application Japan, Sept. 19, 1972, 47- 



107980; Sept. 30, 1972, 47-1 13640; May 9, 1973, 48-54312 



InL CI.' E02B J/06 

 f.S. CI. 61—5 1 Claim 



A floating breakwater in which the floating body is 

 formed by housing a floating material as a floating 

 source and a weighting material as a source for in- 

 creasing weight in a hollow shell composed of a rigid 

 material and provided with a projection on the upper 

 portion. The specific gravity of the floating body is 

 made to be 0.15 - 0.75 owing to the floating material 

 and the weighting material. 



Keywords: Breakwater, floating 



3,991,581 



METHOD AND APPARATUS FOR HANDLING PILING 



AND ANCHORING AN OFFSHORE TOWER 



Alfred Reeves Kolb, Corleston on Sea, England, assignor to 



Brown & Root, Inc., Houston, Tex. 



Filed June 2, 1975, Ser. No. 582,677 



Int. CI.- E02B 17100 



L'.S. CI. 61-53.5 10 Claims 



A method and apparatus for handling piling and an- 

 choring an offshore tower are disclosed wherein sud- 

 den loading of a derrick handling the piling is avoided 

 as the piling is moved into position preparatory to 

 driving. The apparatus entails a base intended to rest 

 upon an upper end of a piling guide. A releasable grip- 

 ping means is connected to the base and serves to grip 

 and restrain an add-on piling while the add-on piling is 

 connected to a piling connected and thus suspended 

 within the piling guide and also while the suspended 

 piling is released therefrom. Releasing means are em- 

 ployed to release the grippingi means to permit con- 

 current downward movement of the add-on and sus- 

 pended piling. 



In further aspects, the apparatus and method of the 

 invention effect the connection of an add-on piling to 

 a piling suspended from an offshore tower by first at 

 least partially enclosing the add-on piling within a 

 chuck releasably gripping the add-on piling. The 

 add-on and chuck are next hung from the boom of a 

 floating derrick and the add-on piling is connected to 

 the suspended piling. The piling is thereafter 

 disconnected from the piling guide while the 

 suspension thereof is concurrently maintained by a 

 restraining engagement between the chuck and the 

 piling guide. Ultimately the piling is lowered and 

 forced into the strata underlying the floor of the body 

 of water. 



Keywords: Offshore platform, fixed; Offshore 

 platform, leg; Pile placement; 

 Pile section connection 



U.S. CI. X.R. 61-86 



Figure 13. Annotations illustrating assignment of keywords, 



42 



