Corn Grinding Mill

Join Our Community of Science Lovers!


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


A mill of an improved description, for both grinding and shelling corn by one operation, has been invented by Wm. Zimmerman, of Quincy, 111. In this improved arrangement the mill is made to consist of a revolving and stationary grinder, over which latter is placed a hopper connected with the revolving grinder, by two uprights, and made to revolve in a similar manner. The hopper is furnished with several openings, through which, as it rotates, the ears of corn are made to fall on the stationary grinder, where the shelling operation is performed. For this purpose the stationary grinder is provided with slots, into which a series of teeth, belonging to the revolving grinder, are made to fit so that the edges of the slots act against the corn as the revolving grinder turns found. Atter being released from the cob the grain falls through shelling holes at the lower part of the stationary grinder, and is ground into meal between the two grinders, which are for this purpose corrugated on their appropriate sides. The cobs, by adjusting the hopper sufficiently close to the stationary grinder, may also be ground between the two, if desired, but in this case the under side of the hopper must be likewise corrugated. The spindle that forms the shaft for the lower grinder is made hollow for facility of lubricating the step.

Scientific American Magazine Vol 8 Issue 24This article was published with the title “Corn Grinding Mill” in Scientific American Magazine Vol. 8 No. 24 (), p. 188
doi:10.1038/scientificamerican02261853-188a

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe