UNT Libraries Government Documents Department - 3 Matching Results

This system will be undergoing maintenance May 23rd between 9:00AM and 12:00PM CDT.

Search Results

Gas-Vent for Molds.
Patent for a gas-vent for molds. Its object is "to provide a simple and cheap construction whereby free escape of the gas or air is permitted form the mold into which molten metals...are to be poured for the purpose of forming a casting" (lines 12-18). Construction of the vent may vary.
Rail Bond For Electric Railroads
Patent for improvement to rail-bonds for electrical railroads to aid in maintaining electrical contact, which will then reduce the loosening of parts which results in broken contact. Illustrations and instructions are included.
Thread-Cabinet.
Patent "...relates to cabinets for spooladapted to contain spools of thread of different sizes and from which the spools may be easily extracted one at a time" (lines 7-11) including illustrations and descriptions.
Back to Top of Screen