Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Balls and lining plates for crushing and grinding mills and or other castings intended to withstand abrasion and repeated impact shock loads and the steels for their manufacture
Essays Concerning Iron and Steel: The First, Containing Observations on American Sand-iron: the Second, Observations, Founded on Experiments, on Common Iron-ore... on the Sort of Iron Proper to be Converted Into Good Steel, and the Method of Refining that Bar-steel by Fusion... With an Account of Mr. Reaumur's Method of Softening Cast-iron: and an Appendix Discovering a More Perfect Method of Charring Pit Coal
Pendelmuehle, in der das zu zerkleinernde Gut durch einen am Moerserring abrollendennd an einer Pendelwelle aufgehaengten Mahlring zertruemmert und vermahlen wird