Automatic Fire-Alarm System. (open access)

Automatic Fire-Alarm System.

Patent for an automatic fire alarm system with a simple arrangement of alarm devices (positioned throughout different rooms) with sound or visual indicators for fire awareness and closer thermal circuits (assisted with spring contact and circuit closer). The automatic fire alarm system will have a more immediate reaction by making an alert noise or visual and propping open the spring contact.
Date: March 16, 1915
Creator: Ammons, John Burck; Ammons, Evander & McGaffey, Otis
System: The Portal to Texas History
Wire Stretching Device for Fence Posts. (open access)

Wire Stretching Device for Fence Posts.

Patent for a new and improved wire stretcher. This design consists in "[t]he combination of a fence-post, the coupled pulleys mounted thereon and adapted to be simultaneously rotated, independent fence-wires extending in opposite directions and attached to one of the pulleys at points thereon that are arranged close together, and binding-sleeves for preventing the rotation of the pulleys after the wires have been stretched" (lines 14-21).
Date: March 16, 1886
Creator: Priday, Henry
System: The Portal to Texas History
Fire-Alarm System. (open access)

Fire-Alarm System.

Patent for "an alarm system consisting of an electric circuit within which as thermally operated circuit closer was placed, which was adapted to sound an alarm when the circuit closer had been closed by an operation of the thermal elements of the circuit closer." (lines 78-84) including instructions and illustrations.
Date: March 16, 1915
Creator: Ammons, John B.
System: The Portal to Texas History
Rail Fastener (open access)

Rail Fastener

Patent for a rail fastener for concrete rail ties. It is a bolt receiver to be placed in concrete rail ties to allow the bolts to be held securely.
Date: March 16, 1911
Creator: Wessel, Frederick
System: The Portal to Texas History
Rotary Boring Drill (open access)

Rotary Boring Drill

Patent for
Date: March 16, 1915
Creator: Hughes, Howard R.
System: The Portal to Texas History
Door-Stop. (open access)

Door-Stop.

Patent for a door stop, which is made of metal and attaches easily to the door.
Date: March 16, 1909
Creator: Snowden, Rene Ravenel
System: The Portal to Texas History
Signal-Light. (open access)

Signal-Light.

Patent for "new and useful improvements in Signal-Lights." (lines 5-6) and "relates to improvements in signaling means." (lines 8-9) including illustrations.
Date: March 16, 1920
Creator: Thomas, Theodore G.
System: The Portal to Texas History
Scaffold-Jack. (open access)

Scaffold-Jack.

Patent for an adjustable scaffold jack with a platform.
Date: March 16, 1909
Creator: Schwilling, Jacob
System: The Portal to Texas History