2 Matching Results

Search Results

Lock Stitch Ripper.

Description: Patent for a new and improved multi-tool. This design "relates to an improved combination tool or implement designed to be used in connection with sewing-machines, and combining in a convenient form several instruments which operators on sewing-machines should always have ready at hand" (lines 9-14).
Date: April 8, 1884
Creator: Wheeler, Elijah Harvey
Partner: UNT Libraries Government Documents Department

Scale Alarm

Description: Patent for an improved scale alarm that automatically alerts the user to scales that are not balanced and is unaffected by temperature changes, including illustrations.
Date: April 8, 1913
Creator: Rice, William Jasper
Partner: UNT Libraries Government Documents Department
Back to Top of Screen