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Automatic Alarm Device
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.
System:
The Portal to Texas History
Cotton Boll Thresher.
Patent for a cotton-boll thresher which opens the bolls and separates the cotton. This thresher tries to improve on others by making them "strong, durable, efficient, and simple and comparatively inexpensive to construct" (lines 21-23); patent includes illustrations and specifications.
Date:
May 9, 1916
Creator:
Bryan, Andrew J.
System:
The Portal to Texas History