Sunday, May 4, 2008

A Monster Plow

1895

The Farmer Who Made It Overlooked Some Mechanical Principles.

Few people are aware of the fact that what is very likely the largest single share plow in the world was made in California and is at present on one of the ranches of the Kern County Land company, near Bakersfield. It is not in use, however, but is simply kept as a curiosity in a little yard all by itself.

It is over 15 years since the idea of the plow was conceived by J. Thompson, a ranch foreman. He was tired of preparing a 3,000 acre wheatfield for crops with the ordinary nine or twelve inch plows worked by two horses then in use. He made his calculations very carefully, but not being a mathematician made a great mistake.

He figured that if two horses could pull a 12 inch plow six horses could pull a 36 inch one, and that eight horses could pull a 48 inch one. It seemed natural enough to figure that way when in fact he should have "cubed" the capacity of his 12 inch plow every time he doubled the width of it. A 12 inch plow, when it is pulled the distance equal to its width, displaces one cubic foot of soil, and a 36 inch plow will displace 27 cubic feet instead of 3, as Mr. Thompson figured.

After all the calculations and drawings were made a blacksmith came out from Bakersfield, and in due time the monster plow was ready to go to work in the field. The share was made to cut a 50 inch furrow, and the top of it reached about five feet from the ground. The beam was over a foot thick, and the handles were 10 feet long, but of course did not slope at the same angle as in the ordinary plows. To enable the plow to be turned around easily it was suspended between two 8 foot wheels, on the axle of which was a seat for the driver. It made a huge, ugly contrivance that looked like a nightmare.

When the plow was taken to the field, ten horses were fastened to it. The handles were raised and the horses started, but as soon as the share was about half way into the ground they stopped. More horses were brought out and sunk it a little deeper, but not until 50 had been hitched to the plow did it move through the soil at any sort of speed. At best it moved slowly, and it took four men to hold the handles and make it stay in the furrow.

Horses were cheap in Kern county at that time, and feed cost nothing, so the plow was a little saving after the men had learned how to handle it so it did not cut more than 18 or 20 inches deep. The next season it was tried with oxen, and it took 75 of them to do the work. On the whole, the plow was not a success, and after being tinkered at for a few years was finally discarded and at last given a place in the stable yard, where it could be preserved as a curiosity. — San Francisco Call.

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