52 Matching Results

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Core-Discharge Apparatus. (open access)

Core-Discharge Apparatus.

Patent for an Improvement in Core-Discharge Apparatus. It is meant to be used in connection with core drills in well or mine drilling. This improvement is meant to be carried to the surface by an air-lift pump.
Date: October 1, 1918
Creator: Carhichael, Robert E.
Object Type: Patent
System: The Portal to Texas History
Cutter-Bar Adjusting and Locking Means (open access)

Cutter-Bar Adjusting and Locking Means

Patent for "adjusting and locking the cutter bars of lawn mowers" (lines 9-11), and improve the movement of lawn mowers by adding a screw through the frame and cutter bar.
Date: October 1, 1918
Creator: Hollon, George F.
Object Type: Patent
System: The Portal to Texas History
Cement and Concrete Construction. (open access)

Cement and Concrete Construction.

Patent for improved, integrated construction materials system including, "reinforced cement, concrete or similar materials," air ventilation, lathing securing, and down spout construction, with instructions and illustrations.
Date: October 1, 1918
Creator: Parker, Barton J.
Object Type: Patent
System: The Portal to Texas History
Automatic Automobile-Top. (open access)

Automatic Automobile-Top.

Patent for an improvement on automatic automobile-tops. The primary objective is that when in inoperative positions, the actuated drum neatly appears as a weather proof roll. Another objective is to provide side curtains so that the vehicle may be closed on all sides.
Date: October 1, 1918
Creator: Montroy, Phiip A.
Object Type: Patent
System: The Portal to Texas History