Ditching Plow — Patent #500
Invention Improved Excavating-Machine
Filed Friday, 1st December 1837
Published Friday, 1st December 1837
Inventor Thomas Claton
My 500th online patent needs to be patent US500CPC Classification:
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To all whom it may concern:
Be it known that I, Thomas Claton, of Shelbyville, county of Shelby, and State of Indiana, have invented a new and useful Improvement in the Machine Used for Excavating Canals, &c., and answering the ordinary purpose of plow and scraper, and which machine I term the “Excavating-Plow;” and I do hereby declare that the following is a full and exact description of my said improvement.
In order to facilitate the description, I will describe one of my plows, which I have found to answer perfectly well in practice. It consists of the ordinary beam and colter, with a broad flat share, from the back of which share, and attached to the handles of the plow, extends a box having its floor or bottom even with the share. The mold-board is dispensed with, and the front of the box is opened to receive the earth as it passes over the share. The bottom of the plow, which includes the box from the point of the colter to the handles, is not made straight, but descends so much toward the center that the weight of earth in the box, when it is full, is sufficient to bear down the back part of the plow and run the colter up out of the ground, and to pass some six or seven inches above it when it is out.
In the accompanying drawings,
The sloping end of the side
I do not claim the employment of a box to receive and carry off the earth; but
What I do claim is—
The form of the bottom of the plow, being made with two plane surfaces, instead of curved, as is usual, the line forming the angle of these two planes being so situated that the weight of the earth, when the box is full, will throw the front of the plow up, as herein set forth.
Clement T. Foote.