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12 Matching Results
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Apparatus for Testing Errors of Refraction
Patent for an eye testing device that has a movable lens, a measuring device for correction, and two different cards with test type on them which are fed into the machine during testing for astigmatism and myopia, presbyopia, and hyperopia to determine the level of correction needed in glasses.
Date:
July 2, 1907
Creator:
Bahn, Gustavus Adolphus
System:
The Portal to Texas History
Bat-Forming Apparatus.
Patent for a machine for use in making cotton batting which takes the cotton in by an air current and then distributes it evenly throughout the mold for the batting. Illustration is included.
Date:
July 2, 1907
Creator:
Haynes, Daniel
System:
The Portal to Texas History
Mechanical Movement.
Patent for a mechanical movement, which reduces the level of power needed to operate a mechanical motor pump for wells.
Date:
July 2, 1907
Creator:
Kirby, William Buckingham
System:
The Portal to Texas History
Washboard
Patent for a washboard designed to hold the soap in a manner in which the clothes will automatically be soaped while being rubbed on the board. Illustrations included.
Date:
July 2, 1907
Creator:
Wilkins, Willis A.
System:
The Portal to Texas History
System of Electrical Operation.
Patent for an electrical system, which reduces the amount of power used to run a generator when there is low usage of the generator, thereby saving fuel.
Date:
July 2, 1907
Creator:
Slaughter, Joel C.
System:
The Portal to Texas History
Method of Making Concrete Tombstones.
Patent for a method of making concrete tombstones which are waterproof and don't require wetting during the drying process to prevent cracking, reducing the drying time from 30 days in the shade to 4 days in the sun. This is achieved by adding salt to hold water which prevents cracking while drying, and a paint coat of aluminum powder and gasolene to waterproof the concrete and add a shine to it.
Date:
July 2, 1907
Creator:
Hendley, Marion Jonathan
System:
The Portal to Texas History
System of Electrical Operation.
Patent for an electrical system to power generators, which can reduce the power flow to the generator during low usage periods.
Date:
July 2, 1907
Creator:
Slaughter, Joel C.
System:
The Portal to Texas History
Fence-Post
Patent for a plastic fence post for use with wire fences that has pre-made openings for the wires to go into to and attach to the fence post.
Date:
July 2, 1907
Creator:
Crum, William H.
System:
The Portal to Texas History
Shoe-Tongue Support.
Patent for a shoe tongue with a backing support to keep it from slipping down or sideways, which is held in place by the shoelaces.
Date:
July 2, 1907
Creator:
Thomas, Robert P.
System:
The Portal to Texas History
Oil-Burner
Patent for an oil burner designed to prevent choking and corrosion, and to ensure that fluids are properly warmed for the purpose of combustion. Illustrations included.
Date:
July 2, 1907
Creator:
Swenson, Charles E.
System:
The Portal to Texas History
Planter.
Patent for a planter for planting cotton seed, which can be used with a walking or wheeled planter and automatically drops seeds when moving forward but not backward, and which can have the mechanism turned off while in transit.
Date:
July 2, 1907
Creator:
Vaughn, George Washington
System:
The Portal to Texas History
Cotton-Topper.
Patent for a cotton-topper, which attaches to a cultivator.
Date:
July 2, 1907
Creator:
Ray, Arthur Taylor
System:
The Portal to Texas History