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US Patent: 138,166
Improvement in grain-drills
Patentee:
Jacob King - Indianapolis, IN

USPTO Classifications:
38/36, 74/423

Tool Categories:
agricultural machines : crop planters

Assignees:
Jacob King - Indianapolis, IN
Berner, English & Over - Indianapolis, IN

Manufacturer:
Not known to have been produced

Witnesses:
Daniel W. Knepler
O. F. Mayhew

Patent Dates:
Applied: Feb. 15, 1873
Granted: Apr. 22, 1873

Patent Pictures:
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"Vintage Machinery" entry for J. King & Co.
"Vintage Machinery" entry for Berner, English & Over
Description:
"Two iron side boxes vertically pivoted to a central one, the whole formed of upper and lower halves bolted together; in each is a pinion on a horizontal axis; the device to be placed at the apex of a triangular frame. Motion given to the central pinion by a rod passed into it from gearing on a front bearing-wheel. Other rods passed into the side pinions give rotation to the seed-cup boxes on the side of the frame and permit angular adjustment."

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