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1203results about "Slipways" patented technology

Winch assembly for a lift structure supportive of a recreational boat and related watercraft

An improved winch assembly adaptably configured for use with a new or existing lift structure suitably dedicated for short- and long-term storage of a recreational boat and related watercraft. The winch assembly comprises three drive assemblies housed and mounted within a chassis. The first drive assembly comprises a first plate sprocket and a pair of cable guards collectively mounted onto a cable hub to form a spool assembly for accepting and winding thereon a predetermined length of cabling. The second drive assembly comprises a stepped hub having three discrete cylindrical surfaces to form first and second annular walls for mounting thereagainst primary and secondary plate sprockets and an inner bore extending therethrough for receiving therein an intermediate axle having ends affixed to the chassis, wherein the primary plate sprocket is connectively coupled with the first plate sprocket by a drive chain. The third drive assembly comprises a motor hub mounted to the chassis by means of a mount plate and having primary and secondary cylindrical surfaces each of differing diameter to form an annular wall for mounting thereagainst a plate sprocket connectively coupled to the secondary plate sprocket by a motor drive chain and first and second elongate bores extending longitudinally through the primary and secondary cylindrical surfaces for receiving and housing therein an output shaft of either a 110 / 220- or 12 / 24-volt electric motor and an axle having a hex-shaped head positioned externally to the mount plate for manual turning of the drive assemblies in the event of the electric motor's failure, respectively.
Owner:LEDFORD MICHAEL PAUL

Mobile operation platform device for ship

The invention discloses a mobile operation platform device for ships, in particular to an operation platform device which is provided to personnel for ship structure examination, maintenance and repair, cleaning and sweeping hold operation and other operations and can conveniently move along the cargo hold wall or the operation surfaces of other places to reach specific location and work in cargo holds and other high places. The mobile operation platform device is mainly composed of a crane rail, a cradle crane, a lifting mechanism, an operation cradle and other members. The invention aims to provide operation personnel with an operation platform which has convenient installation, convenient use and safe operation and can conveniently move along the cargo hold wall or the operation surfaces of other places in the high places for close-up inspection, maintenance and repair and cleaning and sweeping hold operation so as to greatly lower the labor intensity of operators, save operation time and ensure operation safety. Meanwhile, the device conforms to the requirement of other available paths specified in the mandatory documents, such as the II-1/3-6 of the SOLAS (Safety of Life at Sea) convention, technical requirements and the like, can replace the permanent path required by the document and can lower the construction cost for the detection path.
Owner:张楚

Fabricated scaffold and using method thereof

The invention discloses a fabricated scaffold and a using method thereof. The fabricated scaffold comprises a plurality of fixing parts, bearing parts and a plurality of scaffold platforms, wherein the plurality of fixing parts are vertical to a mounting surface; one bearing part is arranged on each fixing part; and the plurality of scaffold platforms are paved between two or among more than two bearing parts. The using method thereof comprises the following steps of: a ship segment stage, namely vertically and fixedly arranging the plurality of fixing parts on the mounting surface at preset intervals; and a general assembly and carrying phase, namely arranging one bearing part on each fixing part and arranging one scaffold platform on the adjacent bearing part. In the invention, a conventional operating mode that a tubular scaffold is needed to be erected in a whole cabin space so as to help a worker reach a higher operation point is changed, a method for extendedly arranging the scaffold clung to the mounting surface is adopted so as to release most of the space in the cabin, shorten the construction period, improve the use ratio of a dock, and reduce the hazard index of workersbelow the scaffold; and the fabricated scaffold has very obvious effect on backing construction in the ship building.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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