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in subjects: "screws"  
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Spindle-Nut Attachment.

Description: Patent for improvement in spindle-nut by providing “an extension to the spindle-nut, not being a washer in any sense of the word, but to all intents and purposes an integral part of said nut adapted to extend toward the outer end of the axle-box and to hold the same to its seat upon the spindle as efficiently as when the parts were new.” (Lines 35-41) Illustration is included.
Date: February 3, 1903
Creator: Carlton, Edward
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Screw-cutting Die.

Description: Patent for a screw-cutting die, including illustrations. The invention includes "a die-plate of special construction, adapted to cut either right or left hand threads" (lines 12-13).
Date: February 6, 1883
Creator: Müller, Joseph
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Letter from Daniel Webster Kempner to Willoughbys, February 12, 1954]

Description: Letter from Daniel Webster Kempner to Willoughbys mentioning about the Heiland Synchronized Flash Unit which they attached to his Rolleiflex camera that he purchased couple of years ago. He left his camera with them for repairs, and when he opened the returned camera, one of the screws was missing. So, he's requesting them to send him a screw that matches.
Date: February 12, 1954
Creator: Kempner, Daniel W. (Daniel Webster), 1877-1956
Item Type: Refine your search to only Letter
Partner: Rosenberg Library

Shears and Tension-Screw.

Description: Patent for shears with a tension spring that don't require the use of a screwdriver to fix or adjust, last longer, keep the blades more even, and don't pinch one's hands while using them.
Date: February 19, 1907
Creator: Wilkins, Willis A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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