Collection
States
Counties
6 Matching Results
Results open in a new window/tab.
Results:
1 - 6 of
6
Improvement to Elevator Signal Systems
Patent for an improvement to an elevator in which “to provide an elevator signal system that will permit a party at any landing to indicate his desire to go up or down to the elevator operator by pressing one of two buttons” (lines 10-15). Instructions and illustration included.
Date:
February 2, 1915
Creator:
Johnson, Charles S.
System:
The Portal to Texas History
Paper-Guide for Printing-Presses.
Patent for improved paper guides for printing presses (particularly stop cylinder printing presses).
Date:
November 2, 1915
Creator:
Garlick, Mark J.
System:
The Portal to Texas History
Oil-Burner.
Patent for an improved oil burner design "for use where high efficiency and greatest economy are desired in burning low grade oil" (lines 14-16), such as coal and crude oil. Includes illustrations.
Date:
November 2, 1915
Creator:
Wright, John F.
System:
The Portal to Texas History
Sealing Device for Cocks.
Patent for a device that seals or locks valves or cocks when in operation and not in operation to prevent connection interference.
Date:
November 2, 1915
Creator:
Caldwell, Charles A.
System:
The Portal to Texas History
Automatic Stop Device for Printing-Presses.
Patent for improvements to safety devices (springs, belt shift levers, guide members, rock shafts) that can be attached to a printing press to create automatic stops. These safety devices can be used to address possible accidents or emergencies by fastening down on a specific section of a printing press.
Date:
March 2, 1915
Creator:
Brown, John Walter R. & Otey, George S.
System:
The Portal to Texas History
Cotton-Boll Separator.
Patent for "cotton boll threshing machines." "Obejct of the inventions is provide means for crushing, agitating, and opening the dry cotton bolls and removing the fiber of seed cotton,,, without breaking the fiber and lowering the grade of the staple."
Date:
March 2, 1915
Creator:
Patterson, Warren A.
System:
The Portal to Texas History