UNT Libraries Government Documents Department - 5 Matching Results

Search Results

Results: 1 - 5

Improvement in Methods of Forming Saw-Teeth.

Description: Patent for "a rule for giving to the backs of saw-teeth such an angle as will allow the teeth to be made of proper strength and at the same time to be chambered out and pointed so that they will cut the wood like chisels instead of scraping or tearing the wood." (Lines 14-19) Includes instructions and illustrations.
Date: December 19, 1871
Creator: Littlepage, Caleb V.
Item Type: Refine your search to only Patent

Improvement in Soldering-Irons.

Description: Patent for "an apparatus to be used with the common soldering-iron, whereby the same can be heated and kept heated continually while the iron is used." (Lines 6-9) Includes instructions and illustrations.
Date: December 19, 1871
Creator: Williams, Joseph
Item Type: Refine your search to only Patent
Back to Top of Screen