h it has been in the ground less than two A screwdriver which will clamp the head of a screw .. < ( t I » years. and hold it in fixed position while it is being driven has AN IMFBOVED DEVICE FOB FELLING TBEE& been patented by Mr. Charles G. Teubner, of Lexington, The accompanying illustration… … position shown in dotted lines in Fig. 1. A third rope TETTBNEB'S SCBEWDBIVEB. BBOWN'S DEVICE FOE FELLING TEEES. has one end fastened to a bar of the sliding frame, the rope passing thence over a pulley on the top sup- is designed that an ordinary cross-cut saw may be the body of the device is…
Patents · Dickerson · Apparatus · Scientific American · Device · Sir william · Sewing machine · Horse power · High pressure · Electric light · American supplement · Low pressure · Pressure cylinders · Gas engine
Internet Archive · Public domain (published before 1931). Free to use for anything.
