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Acetylene-Gas Generator.

Description: Patent for an acetylene-gas generator that consists of “a suitable frame, a receptacle positioned within said frame, and a gas-bell” (lines 11-13), as well as a gasometer and carbide feed. As a result, the gas generator “will continually furnish dry, cool gas and at a substantially even pressure at all times” (line 22-24). Illustrations included.
Date: June 4, 1907
Creator: Hays, Parx Orr
Item Type: Refine your search to only Patent

Acetylene-Gas Machine

Description: Patent for a acetylene gas machine that automatically controls the flow of carbid or gas producing material into the generator "by means of a float and lever connection with the valve of the carbid hopper" (lines 19-21).
Date: May 7, 1907
Creator: Ricketts, James R.
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Acetylene-Gas Machine

Description: Patent for an acetylene gas machine designed to " automatically feed different grades of carbid successfully in variable quantities according to the amount required" (lines 9-11).
Date: August 27, 1907
Creator: Wallace, William A.; Bosley, Lee Wooden & Bosley, Daniel O.
Item Type: Refine your search to only Patent

Animal-Poke

Description: Patent for an animal poke worn on the head of cattle to prevent jumping outside the field which allows the cow to graze freely while wearing the poke.
Date: July 16, 1907
Creator: Seay, Mark Machel
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Animal-Trap

Description: Patent for an animal trap that requires the animal to fully enter the jaws of the trap to reach the bait and that reliably springs the trap upon the entrance of an animal but not when refilling the bait in the trap.
Date: March 26, 1907
Creator: Dubois, James Madison
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Apparatus for Testing Errors of Refraction

Description: 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
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Audiphone

Description: Patent for a audiophone which reproduces sounds at their original volume and timbre through the use of diaphragms vibrated by an electric signal.
Date: October 15, 1907
Creator: Baker, John A.
Item Type: Refine your search to only Patent
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