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Refrigerating Apparatus.
Patent for a refrigerating apparatus that is inexpensive and accessible to market owners, including illustrations.
Date:
June 21, 1921
Creator:
Moore, Harrison E.
System:
The Portal to Texas History
Pipe Tongs.
Patent for pipe tongs for drilling wells using rotary systems. The tongs are designed to be securely held against the drill stem using a lever, making them simple and economical to manufacture.
Date:
June 28, 1921
Creator:
Hill, Richard D.
System:
The Portal to Texas History
Pneumatic Cushioned Tire.
Patent for improvements to pneumatic cushioned tires, including guards to protect and shield the sides against abrasion.
Date:
June 28, 1921
Creator:
Kerr, Augustus Hallawell; Smith, J.A.; Atkinson, J. M.; Dacus, J.A. & Coley, W.L.
System:
The Portal to Texas History
Puncture-Proof Auto-Tire
Patent for puncture-proof auto tires aimed at reducing (or eliminating entirely) automotive tire punctures and blowouts. The design prioritizes the protection and strengthening of tire walls for these purposes alongside a simplicity in design which lends itself toward (comparatively) low manufacturing costs.
Date:
June 14, 1921
Creator:
Fenley, Robert H.
System:
The Portal to Texas History
Washing-Machine.
Patent for a washing machine that has better water pressure for washing that prevents damage to garments. The design for the washing machine also reduces production costs.
Date:
June 14, 1921
Creator:
Latham, Minnie M.
System:
The Portal to Texas History