Below are a few of the machining patents that are relevant to my work and I’ll add to them as I encounter others. I would like to include foundational patents on which machining has been built, especially those that have expired, and perhaps more recent ones that have created fundamental change, but are not exotic. Please send me your recommendations.
Twist Drill
Stephen Morse’s original patent
Step Drills
Milling machine
J.R. Brown’s universal milling machine (necessary for cutting twist drills?)
Bridgeport
Corporate website (now Hardinge)
Machine tool operating at universal angles in overall locations
Aloris Tool Tech
Hardinge Brothers, Inc
Haimer
Haas Automation, Inc.
Hench Manufacturing, Inc.
Gage Blocks
Patent of machine to measure wringing (Apparatus for demonstrating the adhesion of flat surfaces)
Mitutoyo’s History of The Gage Block
Height gauge
https://patents.google.com/patent/US2700826 (Height gauge)