The Artizan . h a square part, on which is a brass pinion wheel W,which works into a geared portion of working cylinder A at Y, and so causes itto rotate with the piston and tool by the ratchet U aforesaid. On end of shaftV, the brass pinion slides along the square part of shaft V, as the cylinder A,advances by the cams F F, slipping over the notches. It, is, however, preferred, as aforesaid, to turn the shaft V by hand, either bymeans of a hand-wheel and mitre-wheel working into a mitre-wheel on shaft V,or b3 double levers with palls, giving a continuous motion to the two ratchet-wheels on sh
The Artizan . h a square part, on which is a brass pinion wheel W,which works into a geared portion of working cylinder A at Y, and so causes itto rotate with the piston and tool by the ratchet U aforesaid. On end of shaftV, the brass pinion slides along the square part of shaft V, as the cylinder A,advances by the cams F F, slipping over the notches. It, is, however, preferred, as aforesaid, to turn the shaft V by hand, either bymeans of a hand-wheel and mitre-wheel working into a mitre-wheel on shaft V,or b3 double levers with palls, giving a continuous motion to the two ratchet-wheels on shaft V. At the end ot the two slide-bars E E, are two screws withsteel points Z Z, for the purpose of steadying the end of machine against therock. The end of the tool is steadied in a bearing J J, accross the end of thetwo slide-bars, in order to compel the tool to bore straight, and it is so arrangedthat upon turning the lever C, the top bearing or step can be easily lifted outwhen the tool requires %w^ Fig; 6.
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Keywords: ., bookcentury1800, bookdecade1840, booksubje, booksubjecttechnology
