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in subjects: "water elevators"  
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Water Elevator.

Description: Patent for a new and improved water elevator. This design "is to provide each bucket with a weighted back; also, in the manner of connecting the chains thereto, so that the necessity of the employment of a weighted wheel is obviated" (lines 20-24). This means that individual buckets may be removed and replaced, and construction becomes more durable and simple.
Date: December 28, 1880
Creator: Mayfield, William D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Water Elevator.

Description: Patent for a new and improved water elevator. This design "relates to improvements in water-elevators in which water is made to perform the operations heretofore performed by steam; and it consists in the construction and arrangement of parts . . . whereby the rarefaction of heated air is employed to raise or set in motion a continuous stream of water" (lines 14-21).
Date: January 25, 1881
Creator: Smith, William A. & Smith, Robert T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Water Elevator Chain.

Description: Patent for a new and improved water-elevator chain. This design "has relation to that class of water-elevators in which the buckets are connected to an endless chain formed of wire, the several links being connected to each other by loops or eyes formed thereon; and the object thereof is to improve the construction of this class of wire chains, whereby the bearings for the links are greatly increased and strengthened and the general construction of the chain rendered more durable, also the link… more
Date: July 26, 1887
Creator: Mayfield, William Dudley
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Water-Elevator.

Description: Patent for a water elevator that is composed of a band with buckets attached that goes around the structure in a circle delivering water.
Date: September 5, 1911
Creator: Thompson, James W. & Hathaway, James F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Water-Elevator.

Description: Patent for an improvement in water elevators to raise and lower a pair of buckets, meant to be simple, inexpensive, and more efficient than other designs. In particular, it is meant "to move the buckets in either direction without necessitating the operator's changing his position with relation to the apparatus" (lines 19-22).
Date: January 1, 1901
Creator: Griffin, Walter R.; Thomas, Joseph E. & Griffin, Samuel D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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