UNT Libraries Government Documents Department - 4 Matching Results

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Device for Removing Broken Screws, &c.

Patent for a new and improved device for removing broken screws. This design "is to provide a . . . bit specially designed for extracting screws, taps, screw-bolts, &c., from iron, marble, or other hard substances in case one of the said articles is broken off in the material into which it is screwed. The invention consists of a bit provided with an internal spiral cutting-thread and external cutters" (lines 7-15).

Date: September 10, 1889

Creator: Cahn, Maurice

End Gate Fastening for Vehicles

Patent for end gate fastening for vehicles.

Date: November 10, 1903

Creator: Clarke, William K.

Feed Water Heater.

Patent for a new and improved feed water heater. This design "provide[s] a system of levers and a float which will automatically regulate the feed or supply of water to such heaters and lime-extractors . . . and further, that by securing a uniform supply of water the steam acts more equally upon the water, and thus secures a more uniform deposit of the lime" (lines 22-33). This allows for fewer accidents and less damage to the engine.

Date: August 10, 1880

Creator: Annear, John Henry

Well Bucket.

Patent for a new and improved well-bucket. This design consists in "[t]he combination, with the well-bucket, having the rabbeted opening in its bottom, and provided with the apertured cross-bars of the valve-rod passing through the apertures in said cross-bars and the opening in the bottom of the bucket, and the valve secured to the lower end of said rod" (lines 56-62).

Date: June 10, 1884

Creator: Foat, Robert H.