Ships – Towing or pushing – Coupling means
Patent
1990-08-21
1991-09-24
Basinger, Sherman
Ships
Towing or pushing
Coupling means
114248, B63B 2156
Patent
active
050505220
ABSTRACT:
An apparatus is disclosed for connecting a pusher boat and a barge, having a notch in the stern portion for receiving the hull of the pusher boat, such that a three-point supported rigid connection is formed which utilizes three axially movable connecting pins. One of the pins is mounted at the bow end of the pusher boat to form a multi-step tooth-engagement with a centerline pin-end receiving member consisting of concavities arranged along the barge's centerline at the deepest point of the notch. The other two pins are mounted on opposing sides of the pusher boat to form a combined friction- and multi-step tooth-engagement with side-pin-end receiving members defined by vertical slots, in the side walls of the notch, with concavities arranged along the centerlines of the slots' base surfaces. This is accomplished with the aid of pressing shoes which are slidably mounted on the outer end portions of the side connecting pins so that they can be pressed into the slots to realize simultaneous forced contact between the forward and rearward faces of the pressing shoes and corresponding side walls of the slots. In this way the pusher boat and the barge are so firmly connected with each other that a superior seaworthiness can be assured even in rough ocean waves.
REFERENCES:
patent: 3512495 (1970-05-01), Fletcher
patent: 3837315 (1974-09-01), Giblon
patent: 3844245 (1974-10-01), Yamaguchi
patent: 3910219 (1975-10-01), Ono et al.
patent: 3935831 (1976-02-01), Yamaguchi
patent: 4805548 (1989-02-01), Yamaguchi
Mogami Kiyoshi
Yamaguchi Takuma
Basinger Sherman
Brahan Thomas J.
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