Resource Type
Counties
8 Matching Results
Results open in a new window/tab.
Results:
1 - 8 of
8
Calculating-Machine
Patent for certain new and useful improvements in calculating machines. Whereby substantially correct calculations may be registered or recored without using a series of superfluous or immaterial numbers. The machine will round prices up to the nearest cent. For example, $0.024 becomes $0.02 while $0.025 becomes $0.03. Illustrations included.
Date:
March 6, 1917
Creator:
Hardgrave, Everett J.
System:
The Portal to Texas History
Counterbalancing Device for Pumps.
Patent for a counterbalancing device for windmill pumps, which reduces friction and lateral pull on the pump.
Date:
March 9, 1909
Creator:
Cotten, Charles Kavendor
System:
The Portal to Texas History
Trap-Gun.
Patent for a trap gun, which is placed in a trap and fires when bait is disturbed which will only go off when the bait is tampered with and can turn to follow an animals movements in the trap.
Date:
March 24, 1908
Creator:
Lovelace, Charles D.
System:
The Portal to Texas History
Ventilating Apparatus.
Patent for a ventilating apparatus "adapted for use in connection with buildings, storehouses, and school and other buildings, both public and private" (lines 9-12).
Date:
March 26, 1901
Creator:
Vernon, William E.
System:
The Portal to Texas History
Bed-Robe For Invalids.
Patent for certain new and useful improvements in bed robes for invalids, including instructions and illustrations.
Date:
March 27, 1900
Creator:
Sims, Mary E.
System:
The Portal to Texas History
Method of Collecting and Conveying Water.
Patent for a new and useful method of collecting and conveying water.
Date:
March 1, 1898
Creator:
Manning, James
System:
The Portal to Texas History
Tag.
Patent for an inexpensive and simple tag to label bolts of cloth that is "a convenient means for fastening the [tag] in such position upon a bolt of goods as to prevent it from becoming twisted or turned, and so that the tag will always be held or supported so as to exhibit the markings thereon" (lines 12-16).
Date:
March 19, 1895
Creator:
Winkler, Charles
System:
The Portal to Texas History
Windmill.
Patent for an improved wind wheel that has "every other blade...has a right angled extension or cup to catch the wind, the blades thus formed being set in the hub and rim of the wheel so as to have said right angled portions where they will receive the full force of the wind" (lines 17-22). A ring supports the angled portions of the windmill blades.
Date:
March 7, 1893
Creator:
Bowman, Charles R.
System:
The Portal to Texas History