5 Matching Results

Search Results

Portable Fan and Operating Machinery for Same.

Description: Patent for a new and improved fan. This design "is fluted or corrugated . . . its lines of corrugation radiating from a common point. By this peculiar formation [it is] enabled to concentrate the surrounding air during its movement, and direct and carry it in a body back and forth . . . [and a] heavy bead or bar follows the zigzag or corrugated outline of the bottom of the fan, and serves as a weight to keep it tending downward toward a position of rest. . . . The frame carrying the fan is supp… more
Date: March 16, 1886
Creator: McComas, Arthur William & Fitzhugh, Henry A.
Partner: UNT Libraries Government Documents Department

Safety Stop for Elevators.

Description: Patent for a new and improved safety stop for elevators. This design "consists in a lever pivoted to the bottom of the car, and provided with a spring for throwing it into position transversely to the car-bottom, so that the ends of the lever can catch on horizontal bars secured to the sides of the elevator-shaft. A rope or cable is secured to one end of the lever and to the car-elevating cable, and keeps the spring taut, and prevents it from throwing the lever unless the elevating-cable breaks… more
Date: March 25, 1884
Creator: Saunders, Ellison
Partner: UNT Libraries Government Documents Department

Shutter Fastener.

Description: Patent for a new and improved blind fastening. This design "relates to an improvement in fastenings for outside blinds, shutters, or the like, and the purpose of [the] device is to provide a fastening that cannot be unlocked from the outside, even though slats be cut from the blinds or shutters to which the fastening is applied and two hands or arms are thrust through within reach of the said fastening. [The] fastening has two catching-latches, one locking and holding latch, and one bolt, all t… more
Date: March 19, 1889
Creator: Bachman, Joseph A.
Partner: UNT Libraries Government Documents Department

Apparatus for the Manufacture of Ice.

Description: Patent for a new and improved ice maker. This design calls for "two or more sheets of galvanized iron or other metal set in a tank of fresh water, one on either side of the evaporation-pipes, and held in a position parallel to each other by anchors or yokes that connect them" (lines 15-20). This eliminates the need for strong (ammoniacal) brine and is a faster, more reliable, and less leaky ice-making process than previous ones that used said brine.
Date: March 2, 1880
Creator: Zilker, Andrew J.
Partner: UNT Libraries Government Documents Department

Locomotive Head-Light

Description: Patent for improvements to locomotive headlights granted to John Robert McCormick in order to make the headlights movable by levers or gears.
Date: March 31, 1885
Creator: McCormick, John Robert
Partner: UNT Libraries Government Documents Department
Back to Top of Screen