ELECTRIC AUXILIARIES ON MERCHANT SHIPS. 



161 



Special Deck Machinery. — There are many special applications of electricity to machin- 

 ery for shipboard not normally included as part of the regular equipment of a cargo ship 

 wherein the use of electricity is particularly well suited. By the proper application of prin- 

 ciples already worked out, it will be found that towing engines, mooring winches and other 

 special pieces of machinery can be built to operate electrically in a very simple manner and 

 with as great, or greater, reliability than steam machinery already developed. 



The following is a table of deck machinery which, with slight modification, would be 

 applicable to ships of any tonnage between 8,000 and 10,000 tons dead-weight. It should 

 be borne in mind that the size of the cargo winches is based upon the best practice for general 

 cargo and therefore does not vary greatly with the size of the ship. The number of winches, 

 however, has to be modified to suit the number of hatches and derrick booms of the differ- 

 ent ships. 



Types Developed (Electric Deck Machinery.) 



BELOW-DECK MACHINERY. 



It should not be necessary to emphasize the importance of fitting equipment of proper 

 design and of the highest grade material, particularly pumps vital to the operation of the 

 ship and which must be relied upon to operate continuously day and night for weeks at a 

 stretch. 



