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Marking Attachment for Planters.
Patent for an attachment for agricultural machines, such as planters and cultivators, that marks off the distance between rows. The attachment consists of a marker that projects laterally from the ground to form a guide for the driver of the machine.
Date:
April 8, 1913
Creator:
Hallenbeck, Garrett L.
System:
The Portal to Texas History
Mechanical Movement.
Patent for improvements in mechanical movements by using cranks and wrist pins to “converting rotary motion, like that of a wheel or pulley, into reciprocating motion.” (Lines 12-14) Illustration is included.
Date:
April 8, 1902
Creator:
McKean, Frank
System:
The Portal to Texas History