4 Matching Results

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Liquid-Indicator for Tanks. (open access)

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 (open access)

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
Pencil Attachment. (open access)

Pencil Attachment.

Patent for a pencil attachment that holds a picture that is designed to have a picture mounted in an opening of the pencil. When the opening is held close to the viewer's eye, the image is magnified. The main purpose of the device is to be used for advertising or souvenirs.
Date: June 10, 1919
Creator: Tippit, Thomas Oland
System: The Portal to Texas History
Agricultural Machine (open access)

Agricultural Machine

Patent for improvements to certain components of agricultural machines, particularly the plow, planter, and stalk cutter attachments.
Date: April 15, 1919
Creator: Johnson, O. J.
System: The Portal to Texas History