2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Combined Pessary and Womb-Battery.
Patent for a combined pessary and womb-battery. It is inserted into a woman's vagina and is used to deliver medication "and to stimulate the genitals to a healthy and normal action both mechanically and electrically" (lines 11-13). The device is worn without discomfort and can be worn while pregnant.
Date:
July 7, 1896
Creator:
Keller, Martha Ellen
System:
The Portal to Texas History
Speed-Indicator.
Patent for a speed-indicator to be used on trolly-cars and other vehicles that informs anyone looking behind the trolly-car if that car is speeding or not. An alarm goes off when the car goes above a predetermined speed, which is activated by a governor that is controlled from the wheels. A device keeps the signal normal.
Date:
July 7, 1896
Creator:
Bateman, Talbot Owens
System:
The Portal to Texas History