THE CUBA REVI EW 



35 



Making two "V"-shaped ditches, each 30 inches wide and twenty inches deep, 

 seat allows an upright position while the machine is on an angle 



The adjustable 



The 20th Century Grading Machine at Work. 



This machine, illustrated above, can be used for road grading, ditch digging, 

 for irrigation work, also for ditch digging for drainage work, for filling, leveling, 

 railroad grading, lawn leveling, seed-bed making, and for building and repairing 

 roads. There is practically no machine in the market which has so many different 

 uses. 



It is largely used in Mexico, New Mexico and Canada in the irrigation fields 

 arnong the large farms and plantations. It will do more and neater work than 

 thirty to forty men with shovels, and requires but one man — and he need not be a 

 skilled mechanic — and a team to operate it. As they are built of wrought iron and 

 steel, they last from ten to twelve years. 



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Coaling Barges at Havana. 



The type of coaling barge shown by the illustrations has been adopted by the 

 Havana Coal Company in the work of outside coaling required for the large steam- 

 ers making port at Havana, Cuba. The improved facility brought about by the 

 introduction of these barges is due to the elasticity of arrangement which permits 

 coaling at the water level, or at deck height, 

 and in the easy access to vessels surrounded 

 by small lighters which may be receiving or de- 

 livering freight. 



The conveying apparatus, made by the Link- 

 Belt Company, Philadelphia, consists of V- 

 shaped buckets, 20x20 inches, attached at inter- 

 vals of 36 inches to two strands of steel roller 

 chain, running noiselessly in a trough 130 feet 

 long, built alongside the keelson of the barge 

 and below the level of a false deck. The con- 

 veyor travels at a speed of 120 feet per minute. 

 The_ loading of 1,200 tons in eight hours has been 

 attained. 



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