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difficulty in passing the seed cotton through any of the numerous forms 

 of cleaner feeders before it reaches the outer breast of the huller gin, 

 and this would obviate entirely the objection that has just been men- 

 tioned. In Texas nearly 7 per cent of the gins are hullers; in Louis- 

 iana, 58 per cent. 



The roller gin. — In roller gins the seed cotton is thrown into a hop- 

 per, whence it is drawn by friction between a grooved or corrugated 

 roller, made of rubber, walrus liide, or some other substance, which 

 presses against a knife. Various methods are used for removing 

 the lint from the roller, as well as for striking the seed from the 

 lint as it is drawn against the knife by the action of the revolving 

 C3'linder. It seems likely that in this system some of the weevils 

 would be killed by the doctor knife or by the beater knife used to 

 remove the seed. Nevertheless, a large percentage of them would 

 necessarily pass along with the seed and be conveyed to the seed house. 

 There would be no difficulty in using cleaner feeders to deposit the cotton 

 in a hopper, although special contrivances would be necessary on 

 account of the slow rate at which the cotton is usually ginned by this 

 process. A large portion of the effectiveness of the cleaner feeders is 

 due to the rapidity at which the spiked roller revolves. This would 

 probably result in feeding a heavy surplus into the hopper. It would 

 be an easy matter, however, to arrange a storage for the surplus. The 

 cleaner feeder might be stopped while the surplus is being ginned. 



The needle gin. — The needle gin is simply a huller gin with a system 

 of needles set upon a cylinder instead of saws. For the present pur- 

 poses it is not essentially different from the ordinary huller gin. 



HANDLING COTTON AFTER GINNING. 



Between the gin and the baling apparatus the lint is handled by two 

 separate systems, the open-condenser system and the lint-flue system. 



Open-condenser system. — In the open-condenser system all of the lint 

 from each gin drops directly upon the floor. When a sufficient quan- 

 tity has accumulated to make a charge it is drawn along on the floor 

 by hand or forks and deposited in the press. During this treatment 

 weevils in the lint, of course, have abundant opportunities for escape. 

 The condenser itself consists of a circular wire or perforated screen 

 drum inclosed in a framework of iron, wood, canvas, or other material, 

 leaving sufficient space to allow the escape of air, dust, etc. , from the 

 gin stands. In some cases there is an opening through the floor 

 through which the air escapes, while in a battery of two or more gins 

 the air discharges through double dust and air flues through the roof 

 of the building. 



The air-tight lint flue. — In modern ginneries, however, the open- 

 condenser system is being done away with, and the air-tight lint flue 



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