Resource Type
10 Matching Results
Results open in a new window/tab.
Results:
1 - 10 of
10
Blade-Holder
Patent for a new and useful improvements to a blade holder. It can hold any form of razor blades can be securely held and easily released. The holder allows blades to be inserted safely and then hold blades firmly into place.
Date:
September 27, 1921
Creator:
Lightfoot, Roy L.
System:
The Portal to Texas History
Cotton-Packer
Patent for cotton packer designed for use in cotton gins.
Date:
September 27, 1921
Creator:
Williams, French B.
System:
The Portal to Texas History
Highway for Grade-Crossings.
Patent for highway-railroad grade crossing designed to slow the flow of traffic as it crosses an intersecting railway.
Date:
September 27, 1921
Creator:
Carter, Kenneth Wilson
System:
The Portal to Texas History
Incubator
Patent for an incubator designed to maintain temperature automatically.
Date:
September 27, 1921
Creator:
Kovar, Joe
System:
The Portal to Texas History
Liquid-Fuel Burner.
Patent for improvements in liquid fuel burners that can handle intense heat and can be mass-produced.
Date:
September 27, 1921
Creator:
Hosek, Charles
System:
The Portal to Texas History
Phonograph-Needle.
Patent for a phonograph needle "which is simple in construction, inexpensive to manufacture, and may be used in connection with phonograph records of different types" (lines 18-21). The needle has a flexible shank (in multiple forms) for improved audio quality, and it accommodates various tip styles for use with many brands of phonograph records.
Date:
September 27, 1921
Creator:
Fletcher, Theodore
System:
The Portal to Texas History
Pipe-Gripping Device.
Patent for a device designed to hold and sustain a string of pipe in an elevated position during the process of unscrewing and separating it into sections, primarily used for drilling operations where pipes are connected and disconnected within a borehole.
Date:
September 27, 1921
Creator:
Steen, Buford J.
System:
The Portal to Texas History
Piston Packing
Patent for an improved means of packing pistons in gas, steam, or similar engines, which reduces the likelihood of loss of compression.
Date:
September 27, 1921
Creator:
Williams, Nolan S.
System:
The Portal to Texas History
Process of Producing Barium Chlorate
Patent for a new process of making substantially pure barium chlorate that will be more expeditious and less costly to carry out than those prior.
Date:
September 27, 1921
Creator:
Schoch, Eugene P.
System:
The Portal to Texas History
Serving-Table.
Patent for "a table...which is specially adapted for use in serving cold drinks, light lunches and the like to customers seated in an automobile or other similar vehicle" and the table "is adjustable so that it may be accommodated to vehicles of different heights" (lines 11-15, 18-19). It also contains an illustration.
Date:
September 27, 1921
Creator:
Boysen, August
System:
The Portal to Texas History