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Guard-Rail Clamp.

Description: Patent for guard rail clamps to securely clasp guard rails with the main rail with features such as spikes and braces.
Date: March 12, 1912
Creator: Akers, Harry R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Switch-Stand

Description: Patent for a switch stand with a switch signal light to indicate whether a railroad switch is open or closed.
Date: November 12, 1912
Creator: Phillips, Smith F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Rotary Churn.

Description: Patent for a manual rotary churn with two dasher blades, including instructions and illustrations.
Date: March 12, 1912
Creator: Martin, Harry T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spike

Description: Patent for spikes for securing rails to railroad ties. Illustrations included.
Date: November 12, 1912
Creator: Riggins, William R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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