Handling: hand and hoist-line implements – Hoist-line slings – Latch release
Patent
1977-02-16
1978-05-30
Marbert, James B.
Handling: hand and hoist-line implements
Hoist-line slings
Latch release
294 74, B66C 134
Patent
active
040920380
ABSTRACT:
A jacket for use in supporting an offshore platform. The jacket is of the type having a plurality of legs interconnected by a plurality of bracing members, a number of the bracing members having means for connection with the cables of apparatus for lifting the jacket during transportation and positioning thereof. The jacket has improved connection means comprising a plurality of self-aligning, reusable padeyes and a corresponding plurality of padeye mounting sites. Each mounting site comprises a cylindrical padeye receiving portion comprising a section of a bracing member, and is bounded axially by stop means. Each padeye comprises a pair of hinged, generally hemispherical clamp members which, when closed, form a cylindrical hollow sized to fit the receiving portion. An eyelet is rigidly mounted on each clamp member and defines a hole for receiving a pin and a stop surface. The axis of the hole in each eyelet is skewed with respect to the central axis of the hollow, and the stop surfaces mutually abut to limit the extent of closure of the clamp members, to maintain registration of the respective pin receiving holes, and to ensure that the padeye is free to axially rotate about the receiving portion.
In use, the padeyes are closed about padeye receiving portions spaced apart on one side of the jacket. With the stop surfaces in contact and the eyelet holes registered, the pin of a shackle is threaded through the eyelets, and cables are fixed to each shackle and to the main cable of a lift apparatus. When lifting commences, the padeyes rotate axially about the cylindrical receiving portion and become aligned such that they are subjected essentially to tensile stress only.
REFERENCES:
patent: 3451711 (1969-06-01), Carpenter
patent: 3656796 (1972-04-01), Cook
patent: 3831993 (1974-08-01), Drayton et al.
patent: 3982779 (1976-09-01), Hickey
Brown & Root, Inc.
Marbert James B.
LandOfFree
Jacket with improved lifting means does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Jacket with improved lifting means, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Jacket with improved lifting means will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-466686