atch into the piece of wood blesome and expensive. Samuel M. Perkins, truss hoops. ed, by being set in an inclined position, con- to be turned, and the said fore-centre is then of Springfield, Bradford Co., Pa., has invented prevented from moving back when the foot is improvements in the… … tions, but we believe it will not require to be ——— SS used. With good grates over our culverts, the square socizet in the screw, E, and F beside it This improvement was secured by patent The Carbonic Gas Engine. improvement will enable the sewers to be self- is the key to fit into the said socket…
Internet Archive · Public domain. Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten20unit-1191-532.webp)
