PRUNING TOOLS 



301 



mental trees which are difficult to climb. The 

 Waters 7 tree-pruner, which is very useful for 

 heading -in outlying limbs, works upon the prin- 

 ciple of the knife in h, Fig. 211. 

 A tool of the same principle, but 

 looking upward instead of down- 

 ward, is shown in Fig. 212. 



Other shear tools are shown 

 in Figs. 209, 210, 213, 214, 215, 

 216. An exchange describes the 

 tool shown in Fig. 216 as follows: 

 "Anyone can make pruning shears 

 like those here illustrated for his 

 own use. The movable shear, 

 to which the pitman rod is at- 

 tached, does most of the cutting. 

 Both shears are made of thin, 

 hardened steel. From the bolt- 

 hole in the movable shear, a rod 

 (the pitman) longer or shorter, to 

 correspond with the length of the 

 pole used, runs to the lever shown 

 at the bottom of the cut. In 

 pruning trees and vines, the 

 handle of the lever is raised, 

 which forces up the bar and 

 opens the jaws of the shears.* * 212. A gooa 

 * * The jaws of the shears t001 for h eading-in 



outstretching limbs 



must be ground at an angle some- and removing small 

 what more acute than that com- branches. 



