W. Waljee*. Improvement* in rocket gun* and kApt harpoons, and appendaoes to be used therewith. (A xununication.) ... This consists (1) in adding to any mixture of granular pig iron, cast-iron, or refined iron and pulverized iron ore, or oxides of .... covering or winding paper, cloth, tape, cotton, Ac., around the spring band, after which it is to be covered with a thin solution of .... Anew method of producing sand. 2012. J. G. Kenny, Brussels. Improvements in the manufacture of SEPTEMIlEn.
|Title||:||The Mechanics' Magazine and Journal of Engineering, Agricultural Machinery, Manufactures and Shipbuilding|