William Urschel Demonstrates his Wall Building Machine

Filmed in Valparaiso, Indiana in the late 1930’s, William Urschel demonstrates his “Wall Building” machine in this video.
According to his patent application in 1944, this invention is a machine operable to mold a solidifiable material into the form of a strip and deposit the same as a course or layer in the formation of a wall. A novel arrangement of tamping members tamp the material onto the wall. A vibratory feeder device feeds the material. Such a machine could be used to lay adobe, cob or rammed earth, either stabilized with cement or not.

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