a metal bar, which is attached to two This improvement wasinvented by T. Mayhew ; the massive rods, extending back from. the trunnions. patent was granted, through the Scientific American Of all plans yet suggested for closing the breech of a Patent Agency, Jan. 7, 1862, and further informa- tion… … The SCIE NTIFIC AMERICAN has the reputation, at home and abroad, of being the best weekly journal devoted to mechanical and tndustrial pursuits now published, and the proprietors are determined necessary to take hold of the chimney, or of the screw, screw. This perfect closing of the breech has…
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