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Lock-Protecting Device.
Patent for combination lock for safes or vaults with added mechanism for dispensing a gas to deter robberies.
Date:
April 25, 1922
Creator:
Bumpass, Leonard E.
Object Type:
Patent
System:
The Portal to Texas History
Valve-Grinding Implement
Patent for improvements in Valve-Grinding implements. This improvement is applicable to practically any type of engine or motor and to the different types of valves employed therein. This valve relates to the rotating of the valves of internal combustion engines and the like when the same is being ground to effect a proper seating action.
Date:
April 18, 1922
Creator:
Hood, William S.
Object Type:
Patent
System:
The Portal to Texas History
Automatic Gas-Release Packer.
Patent for automatic gas release packer that uses constant pressure regulated by spring-controlled valves for better control when lifting oil out of wells.
Date:
April 11, 1922
Creator:
Cummings, William J.
Object Type:
Patent
System:
The Portal to Texas History
Broom.
Patent for a broom designed to allow the straw to be easily changed as often as needed and to hold the straw firmly in place even when considerable pressure is used, including illustrations and instructions.
Date:
April 11, 1922
Creator:
Boyett, Oren K.
Object Type:
Patent
System:
The Portal to Texas History
Gas Producer.
Patent for improvements to gas producers of the type in which combustible gases are evolved from coal, lignite, etc., during the incomplete combustion thereof.
Date:
April 11, 1922
Creator:
Johnston, Horace G.
Object Type:
Patent
System:
The Portal to Texas History
Photoprinter.
Patent for a photograph printer that includes a mask mechanism to create prints of different sizes. Construction is such that the person using the printer can work the printer accurately and quickly complete work.
Date:
April 11, 1922
Creator:
Lockhart, William E.
Object Type:
Patent
System:
The Portal to Texas History
Refrigerator
Patent for a refrigerator made of wood with an inner shell of reinforced concrete and vacuum chamber or metal jacket. "The inner concrete shell is divided into four separate chambers, the former containing ice and the other three being adapted to contain food." (lines 61-64)
Date:
April 11, 1922
Creator:
Knutson, William K.
Object Type:
Patent
System:
The Portal to Texas History
Well Bucket
Patent for Improvements in well buckets. The bucket has an inlet valve at the bottom and an air escape valve at the top that permits air to escape freely while preventing the entrance of dirt and extraneous matter to the interior of the bucket.
Date:
April 11, 1922
Creator:
Reese, Samuel L. & Reese, Samuel L.
Object Type:
Patent
System:
The Portal to Texas History
Wrench
Patent for an improvement in the design of wrenches, particular for heavy work such as deep well drilling, but still being able to be designed at smaller sizes to handle lighter work.
Date:
April 11, 1922
Creator:
Reed, Clarence E.
Object Type:
Patent
System:
The Portal to Texas History
Calipers.
Patent for calipers that make it easier to read measurements, by having a strip of measuring tape at the ends that allows users to determine the distance between the arms easier. The measuring tape component is also retractable.
Date:
April 4, 1922
Creator:
Miller, William James
Object Type:
Patent
System:
The Portal to Texas History
Ointment.
Patent for a general external application ointment made of chloride of zinc, powdered metallic cobalt, blood root, and glycerine.
Date:
April 4, 1922
Creator:
Mullins, Ervin L. & Collier, William R.
Object Type:
Patent
System:
The Portal to Texas History
Universal Household Grater.
Patent for a new universal grater which eliminates the risk of injury the user may gain from grating materials.
Date:
April 4, 1922
Creator:
Lambdin, William McKendree
Object Type:
Patent
System:
The Portal to Texas History
Recovery of Gasoline From Uncondensed Still Vapors
Report issued by the U.S. Bureau of Mines on the possibilities of increasing fuel production from crude oil. Methods of recovering oil that is lost by remaining uncondensed are presented. This report includes tables, graphs, and illustrations.
Date:
April 1922
Creator:
Dow, Donald B.
Object Type:
Report
System:
The UNT Digital Library