304 MODERN MACHINERY. 



After the coffee has been passed through this machine it 

 is perfectly cleaned and graded and brings the highest 

 possible price in the market. 



In order to save time and labor on a plantation bucket 

 elevators are used, which convey the coffee from the 

 ground to the top of a machine. A bucket elevator is 

 an apparatus consisting of an endless belt running round 

 two pulleys, one of them being at the top and the other 

 at the bottom of the apparatus. On this endless belt 

 there are fastened a number of small tin cups, and as 

 these come round to the ground where the coffee is they 

 pick it up and carry it to the head of the apparatus to 

 any desired elevation, and from the head of the apparatus 

 the coffee falls by gravitation to a machine. 



A great many coffees come to market imperfectly 

 cleaned and graded, and they cannot be roasted nicely 

 unless they are previously cleaned in the green state. 

 The wholesale jobber and manufacturer, in order to 

 handle such coffees, have in operation in their mills such 

 machines as a milling or scouring machine and a sepa- 

 rator and cleaner. The scouring machine consists of the 

 polishing cylinder of the huller and polisher. The jobbers 

 and manufacturers materially enhance the value of such 

 coffees by running them through these machines. 



Coffee nowadays is sold by both the green and roasted 

 samples; that is, if anyone has a lot of coffee to sell he 

 must place before the intending purchaser both a sample 

 of it in its green state and a sample of it in its roasted 

 state. In order to do this the sellers of coffee have in 

 their offices a small sample coffee-roaster which will roast 

 from one to three pounds in from five to ten minutes. 

 Single sample roasters are manufactured to be turned by 

 hand, and they are also made in batteries of any number 

 desired to be turned by steam or electric power. 



