Resource Type
Counties
Month
Day
7 Matching Results
Results open in a new window/tab.
Results:
1 - 7 of
7
Power-Hammer.
Patent for a power hammer that can utilize any power source and only needs one person to operate it. The design also uses less parts, making it more affordable.
Date:
December 13, 1921
Creator:
Karlson, Eric Fritjof
System:
The Portal to Texas History
Viscoscometer.
Patent for a device that accurately determines the viscosity of different liquids, particularly oils, and is able to be kept at a uniform temperature.
Date:
June 13, 1916
Creator:
Lorenz, Charles O.
System:
The Portal to Texas History
Velocipede
A patent for a quadrucycle, or bicycle with four wheels, adaptable for use on railroads.
Date:
June 13, 1882
Creator:
McCombs, Paul
System:
The Portal to Texas History
Portable Press for Hay
Patent for a portable press for hay. "My invention relates to portable hay and other presses, and has for its objects, first, an improved power-transmission and lever device for pressing or forcing the hay or other material into th box or frame of the press" (line 8-13). Illustration included.
Date:
October 13, 1903
Creator:
McKean, Frank
System:
The Portal to Texas History
Rotary Drilling Apparatus.
Patent for a rotary drilling mechanism for drilling wells, which has better vertical movement than other models.
Date:
August 13, 1907
Creator:
Wiggs, James A., Jr.
System:
The Portal to Texas History
Journal-Bearing
Patent for a self-lubricating journal bearing that is protected from foreign matter. Illustrations included.
Date:
April 13, 1909
Creator:
Lanaux, Alfred A.
System:
The Portal to Texas History
Percolator.
Patent for a percolator that has a storage tank where the water may be heated and stored for later use to make coffee. The device also features a cylinder, where ground coffee is placed, that can be removed for easy cleaning.
Date:
June 13, 1916
Creator:
Duke, Holmes
System:
The Portal to Texas History