CLEARING LAND IN THE LAKE STATES. 



9 



Fig. 6.— Typical tripod stump puller. Pullers of this type must be 

 set directly over each stump pulled. 



quite an item. In pulling small, sound stumps considerable time is 

 saved in not having to dig root holes, which are necessary when using 

 a tripod , type of machine. With large stumps which are partly 

 decayed, this saving 

 of time over that re- 

 quired in the use of 

 the tripod type is 

 about offset by the 

 loss of time due to 

 stumps breaking off. 

 When this occurs, 

 each large root must 

 be dug and pulled 

 out separately. The 

 capstan machine will 

 work on steeper land 

 than the tripod, 

 though no machine 

 will do very satisfac- 

 tory work on a steep 

 hillside. By using the double and triple power arrangements of 

 lines, the capstan machines will pull any white-pine stump in the 

 Lake States. Many practical land-clearing operators using the cap- 

 stan machines do not favor the use of the double or triple power in 



connection with these 

 machines because of 

 the time lost in ad- 

 justing the blocks and 

 hauling the extra 

 cable. They prefer 

 to use a small quan- 

 tity of dynamite un- 

 der the larger stumps 

 to split and loosen 

 them. With the tri- 

 pod type of machine 

 the use of dynamite 

 to loosen the stump 

 is unnecessary, because these machines are powerful enough to pull 

 any white-pine stump. 



THE TRIPOD TYPE OP MACHINE. 



Many stumping contractors clearing white-pine land in Michigan 

 use the tripod type of machine. Any stump pulls more easily when 

 lifted vertically than when pulled from the side. No anchor stump 

 36156°— Bull. 91—14 2 



Fig. 7.— Another stump puller of the tripod type. 



