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Automatic Alarm Device

Description: Patent for a spring motorized automatic alarm device with an improved tripping mechanism actuated by the medium of fire severing an actuator cord "or the like".
Date: March 9, 1915
Creator: Willoughby, Alford Pervis & Bolding, William D.
Partner: UNT Libraries Government Documents Department

Cattle-Yoke.

Description: Patent for a cattle yoke which enables the yoke to be attached to a cow's head to prevent grazing from other side of the wire fence.
Date: April 27, 1915
Creator: Carr, Jessie D.
Partner: UNT Libraries Government Documents Department

Bag-Mouth-Spreading Device

Description: Patent for a device which holds open the mouth of a bag or sack so that it can be easily filled. The device works with bags hung on a post or with bags hung from the shoulder, as a cotton picker's sack.
Date: January 5, 1915
Creator: Willoughby, Alfred Pervis
Partner: UNT Libraries Government Documents Department

Collapsible Coop

Description: Patent for a collapsible coop that provides a top skeleton and also collapsible chicken coop which is simple and practical features.
Date: August 31, 1915
Creator: Willoughby, Alford Pervis
Partner: UNT Libraries Government Documents Department
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