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Check-Book.
Patent for a checkbook holder that includes a special binder for check stubs, with instructions and illustration. When a new set of checks and binder are inserted into the holder, the old binder of stubs can be easily removed and saved, for receipt purposes.
Date:
July 11, 1916
Creator:
Bennett, Paul H.
System:
The Portal to Texas History
Liquid-Indicator for Tanks.
Patent for a liquid indicator to determine if the supply of oil has been depleted in the crank case of an automobile's internal combustion engine. Further purposes of this patent include the closing of an electrical circuit when the oil in the crank case becomes low in order to sound an audible noise that alerts the driver that more oil is needed. The patent intends to make the invention durable, easy to use, and inexpensive to manufacture.
Date:
July 29, 1919
Creator:
Pippin, William R.
System:
The Portal to Texas History
Safety-Crank
Patent for a new Safety-Crank for starting auto vehicle engines, which is capable of effectively imparting the necessary forward movement to an engine for starting, but having means conjoined with it, whereby it will be automatically released from positive engagement with the starting shaft on any retrograde movement of the engine.
Date:
July 1, 1919
Creator:
Farley, Bert T.
System:
The Portal to Texas History