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Window-Shade Raiser.
Patent for an improved way of raising, lowering, and locking window shades into place. "The operating-cord passes over a pulley located between two larger disks, one of which is screwed toward the other by a spring to clamp the folds of the cord and is screwed in the opposite direction by means of a lever, upon which the chord itself acts when drawn in the proper direction" (lines 14-20).
Date:
April 14, 1896
Creator:
McCauley, John H.
System:
The Portal to Texas History
Stock Car.
Patent for a new and improved animal stalls in stock cars. This design "has for its object to provide these stalls in such a manner that they can be readily and cheaply applied to and removed from the cars; and it also has for its further object to provide for rendering the stall-partitions laterally yielding or elastic, and yet under such a degree of tension as to withstand or resist the movements of the animals" (lines 11-18).
Date:
April 17, 1883
Creator:
Lewis, Henry A.
System:
The Portal to Texas History
Extension-Brace for Ladders.
Patent for an extension brace for ladders that improves on the inventor's previous patent (No. 416,413). The invention's parts "are positively raised and lowered by means of direct acting mechanism which is so constructed and arranged as to obtain the most beneficial results from a comparatively small application of power, the parts being strong and durable easily operated and readily understood" (lines 20-26).
Date:
April 11, 1893
Creator:
Crews, Dayton H.
System:
The Portal to Texas History
Closet
Patent for a dry closet. Illustrations included.
Date:
April 2, 1912
Creator:
Crow, Levi H.
System:
The Portal to Texas History
Well Drilling Apparatus.
Patent for a design of a compact well-drilling machine.
Date:
April 17, 1914
Creator:
Thorniley, Clarence W.
System:
The Portal to Texas History
Lavatory.
Patent "relates to improvement in wash basins, tubs, sinks, trays, and the like and especially with reference to the provision of improved means for flushing the waste pipe or duct thereof and for preventing overflow in the case the supply of faucet or faucets should be left running..."
Date:
April 6, 1915
Creator:
Kavanagh, Joseph A.
System:
The Portal to Texas History
Cut-off Valve for Pipe-Lines
Patent for cut-off valve for pipe-lines intended for oil companies.
Date:
April 30, 1918
Creator:
Hagern, Joseph F.
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.
System:
The Portal to Texas History
Truck.
Patent for an improved truck in which the load can be moved to be easily loaded or unloaded by one person, including illustrations.
Date:
April 19, 1921
Creator:
Ortgier, Walter C.
System:
The Portal to Texas History