Propeller-Wheel. (open access)

Propeller-Wheel.

Patent for "a construction of propeller-wheel that will permit a large reduction in the wheel-diameter without impairing its effectiveness, and which will thereby bring the resistance nearer to the crank-range of the motive power, and also to increase the bucket or blade surface of the wheel and at the same time afford such clearance at the center of the wheel as will relieve resistance to easy operation of the engine or motive power." (Lines 18-27) Includes instructions and illustrations.
Date: December 15, 1896
Creator: Parker, Elisha J.
System: The Portal to Texas History
Improvement in Churns. (open access)

Improvement in Churns.

Patent for a butter churn.
Date: December 15, 1874
Creator: Sreeves, Charles B.
System: The Portal to Texas History
Syringe (open access)

Syringe

Patent for a syringe. Illustrations included.
Date: December 15, 1908
Creator: Hill, Hiram McClung & Farrington, Charles Oliphint
System: The Portal to Texas History
Oil Can. (open access)

Oil Can.

Patent for a new and improved oil can. This design "relates to that class of oil-cans which are used for supplying lubricating material to various kinds of machinery, and which usually consists of a can or receptacle having an orifice through which it may be filled, and a tapering spout for supplying the lubricant to the place where it is needed; and the invention has for its object to produce an oil-can which shall be specially designed for lubricating vehicle-axles, and which shall possess superior advantages in point of simplicity, durability, and general efficiency" (lines 19-30).
Date: December 15, 1885
Creator: Denton, Winfield Scott
System: The Portal to Texas History
Dry Ore Concentrator (open access)

Dry Ore Concentrator

Patent for a dry ore concentrator. Illustrations included.
Date: December 15, 1903
Creator: Sutton, Henry M.; Steele, Walter L. & Steele, Edwin G.
System: The Portal to Texas History