Winches electric motors

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derricks and cargo winches -ship cargo handling gears home page || deck machinery || derricks and cargo winches -ship cargo handling gears cargo handling: the duty of a deck winch is to lift and lower a load by means of a fixed rope on a barrel, or by means of whipping the load on the warp ends, to top

being lowered at a speed which will damage the motor armature; (b) stop the load running back should the power supply fail; (c) prevent the winch starting up again when the power is restored until the controller has been turned to the correct position. hydraulic winch systems are quite common but electric...

https://www.generalcargoship.com/cargo-handling-gears.html

derricks and cargo winches -ship cargo handling gears home page || deck machinery || derricks and cargo winches -ship cargo handling gears cargo handling: the duty of a deck winch is to lift and lower a load by means of a fixed rope on a barrel, or by means of whipping the load on the warp ends, to top

being lowered at a speed which will damage the motor armature; (b) stop the load running back should the power supply fail; (c) prevent the winch starting up again when the power is restored until the controller has been turned to the correct position. hydraulic winch systems are quite common but electric...

http://www.generalcargoship.com/cargo-handling-gears.html

derricks and cargo winches -ship cargo handling gears home page || deck machinery || derricks and cargo winches -ship cargo handling gears cargo handling: the duty of a deck winch is to lift and lower a load by means of a fixed rope on a barrel, or by means of whipping the load on the warp ends, to top

being lowered at a speed which will damage the motor armature; (b) stop the load running back should the power supply fail; (c) prevent the winch starting up again when the power is restored until the controller has been turned to the correct position. hydraulic winch systems are quite common but electric...

http://generalcargoship.com/cargo-handling-gears.html

derricks and cargo winches -ship cargo handling gears home page || deck machinery || derricks and cargo winches -ship cargo handling gears cargo handling: the duty of a deck winch is to lift and lower a load by means of a fixed rope on a barrel, or by means of whipping the load on the warp ends, to top

being lowered at a speed which will damage the motor armature; (b) stop the load running back should the power supply fail; (c) prevent the winch starting up again when the power is restored until the controller has been turned to the correct position. hydraulic winch systems are quite common but electric...

https://generalcargoship.com/cargo-handling-gears.html

of mooring a vessel has traditionally required the attendance of a large number of deck crew fore and aft. supervision of the moorings was also necessary to maintain correct tension through changes due to the tides and the loading or unloading of cargo. the installation of constant tension mooring winches

, which maintain tension in ropes through any rise and fall, has removed the need for constant attendance and equipment is available for tying up which is designed for operation by as few as two men. large container ships may have four mooring winches on the after deck; each of the self-tensioning type...

https://www.generalcargoship.com/deck-machinery-mooring-equipments.html

of mooring a vessel has traditionally required the attendance of a large number of deck crew fore and aft. supervision of the moorings was also necessary to maintain correct tension through changes due to the tides and the loading or unloading of cargo. the installation of constant tension mooring winches

, which maintain tension in ropes through any rise and fall, has removed the need for constant attendance and equipment is available for tying up which is designed for operation by as few as two men. large container ships may have four mooring winches on the after deck; each of the self-tensioning type...

http://generalcargoship.com/deck-machinery-mooring-equipments.html

of mooring a vessel has traditionally required the attendance of a large number of deck crew fore and aft. supervision of the moorings was also necessary to maintain correct tension through changes due to the tides and the loading or unloading of cargo. the installation of constant tension mooring winches

, which maintain tension in ropes through any rise and fall, has removed the need for constant attendance and equipment is available for tying up which is designed for operation by as few as two men. large container ships may have four mooring winches on the after deck; each of the self-tensioning type...

http://www.generalcargoship.com/deck-machinery-mooring-equipments.html

of mooring a vessel has traditionally required the attendance of a large number of deck crew fore and aft. supervision of the moorings was also necessary to maintain correct tension through changes due to the tides and the loading or unloading of cargo. the installation of constant tension mooring winches

, which maintain tension in ropes through any rise and fall, has removed the need for constant attendance and equipment is available for tying up which is designed for operation by as few as two men. large container ships may have four mooring winches on the after deck; each of the self-tensioning type...

https://generalcargoship.com/deck-machinery-mooring-equipments.html

and grabbing duties are available with lifting capacities of up to tonnes. ships specializing in carrying very heavy loads, however, are invariably equipped with special derrick systems such as the stulken (fig ). these derrick systems are capable of lifting loads of up to tonnes. although crane motors

may rely on pole-changing for speed variation, ward-leonard and electro-hydraulic controls are the most widely used. one of the reasons for this is that pole-change motors can only give a range of discrete speeds, but additional factors favouring the two alternative methods include less fierce power...

https://www.generalcargoship.com/deck-cranes.html

and grabbing duties are available with lifting capacities of up to tonnes. ships specializing in carrying very heavy loads, however, are invariably equipped with special derrick systems such as the stulken (fig ). these derrick systems are capable of lifting loads of up to tonnes. although crane motors

may rely on pole-changing for speed variation, ward-leonard and electro-hydraulic controls are the most widely used. one of the reasons for this is that pole-change motors can only give a range of discrete speeds, but additional factors favouring the two alternative methods include less fierce power...

http://generalcargoship.com/deck-cranes.html