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Grease-Trap.
Patent for a grease-trap that improves on a patent previously granted to the inventor (No. 506,690). The improvement includes providing "a strainer device for sewer traps, and the like, which will prevent any solid matter passing therethrough, and at the same time capable of being removed for the purpose of cleansing, repairs or other purposes" (lines 22-26).
Date:
May 8, 1894
Creator:
Heffron, Isaac
System:
The Portal to Texas History
Indicator For Bottles
Patent for an indicator to show the amount of liquid removed and the amount remaining for bottles or other liquid packages of different dimensions and will help improve the process of refilling the bottle after liquid has been removed.
Date:
May 8, 1906
Creator:
Frkovic, Frank Andre
System:
The Portal to Texas History
Reinforcement For Concrete Railroad Ties
Patent for railroad ties reinforced by concrete. Illustrations included.
Date:
May 8, 1906
Creator:
Percival, Herbert E. & Key, Brewer W.
System:
The Portal to Texas History
Rotary Engine
Patent is for a rotary engine. The design of this rotary engine includes an inlet and exhaust that also prevents internal leakage of working fluid under pressure.
Date:
May 8, 1912
Creator:
Bennison, Samuel
System:
The Portal to Texas History