1930s concrete printing technology precursor - GIF

[ToolTalkBot]

1930s concrete printing technology precursor.




Previously:

1930s dotted line tool - GIF
1930s early car ramp jump stunt - GIF
1930s family bicycle - photo
1930s industrial grinder lighting - photo
1930s lathe operator at Leys Malleable Castings Company - photo
1930s shaper operator - photo
1930s vertical turret lathe - photo
Machining a locomotive coupling rod in the 1930s - photo

[IntheGroove]

Just add a mixer and a pump...

[mwmkravchenko]

Nothing new under the sun.

Shows exactly how much water is actually required for strong concrete. No forms is a real plus. Forming this would not be a simple exercise.

Mark