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Popular science monthly . as arule, when fall wheat was being threshed,and very rarely occurred dur-ing the threshing of springwheat. The discharge fromthe machines, while smuttywheat was being threshed,was more noticeable thanwhen clean wheat wasgoing through the process.l-all wheat, as a rule, con-tained much more smut thanspring wheat. The thcor-was advanced that the smallparticles of smut easily be-came electrified when thekernels were broken up bythe cylinder teeth and thateach particle became chargedwith static electricity. From a study of conditions, severalmethods have been developed

Popular science monthly . as arule, when fall wheat was being threshed,and very rarely occurred dur-ing the threshing of springwheat. The discharge fromthe machines, while smuttywheat was being threshed,was more noticeable thanwhen clean wheat wasgoing through the process.l-all wheat, as a rule, con-tained much more smut thanspring wheat. The thcor-was advanced that the smallparticles of smut easily be-came electrified when thekernels were broken up bythe cylinder teeth and thateach particle became chargedwith static electricity. From a study of conditions, severalmethods have been developed Stock Photo
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The Reading Room / Alamy Stock Photo

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2AJG7EX

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7.1 MB (213.9 KB Compressed download)

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2494 x 1002 px | 21.1 x 8.5 cm | 8.3 x 3.3 inches | 300dpi

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Popular science monthly . as arule, when fall wheat was being threshed, and very rarely occurred dur-ing the threshing of springwheat. The discharge fromthe machines, while smuttywheat was being threshed, was more noticeable thanwhen clean wheat wasgoing through the process.l-all wheat, as a rule, con-tained much more smut thanspring wheat. The thcor-was advanced that the smallparticles of smut easily be-came electrified when thekernels were broken up bythe cylinder teeth and thateach particle became chargedwith static electricity. From a study of conditions, severalmethods have been developed for prevent-ing explosions and fires. The investigatorsbelieve that a system of electrical con-nection between all of the moving parts anda common wire, and a thorough groundingof this common wire, will prevent a largepercentage of the fires that are due to thepresence of static electricity and an explo-sive mixture of smut-dust and air. Severalmethods of wiring are recommended, thesystem varying with the type of machine.. »^i Pulhng a threshing machine away from a straw-stack afteran explosion and fire, to avoid a greater conflagration 835 836 Popular Science Monthly A Mechanical Printer forFac-Simile Letters SOME years ago H. P. Hansen, of vYork city, was the pub-lisher of a newspaper. Hehad occasion to mail largequantities of far-simile let-ters ad-ertising his publicationbut he found the printing (jfthe letters ex])ensie. Finalh-he invented an instrumentthat appears to be as revolu-tionary in its line as theMergenthaler Linotype is inthe newspaper field. He callshis creation Autotype. It is a machine about six feetin height, providedwith a magazine thatcontains the type, which is released bymeans of a universalkeyboard. There is agreat advantage in this, since the office ste-nographer can composethe type without anyprevious experience.The composed type istransferred directly toa printing device by an operationthat resembles the movementof a typewriter-carriageWhen the m

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