ROUGH-AND-TUMBLE ENGINEER IOI 



you arc in a hole, and you are able to turn your wheels, 

 you low your wheels to 



!y lets you in deeper. If your wheels can't : 

 footing, you want to ^ive them something to hoi 

 engineers will tell you that the best thin^ 

 hca\ ic. So are gold dollars the best 



things t luy bread with, but you have not always got 

 the gold dollars, neither have you always got the chain. 

 Old hay or straw is a good thing; old rails or timber 

 of any kind. The engineer with a head spends more 

 trying to give his wheels a hold than he does try- 

 to pull out, while the one without a head spends 

 more time trying to pull out than he does trying to 

 secure a footing, and the result is, that the first fellow 

 generally gets out at the first attempt, while the other 

 fellow is lucky if he gets out the first half day. 



If yon have one wheel perfectly secure, don't spoil 

 it by starting your engine till you have the other 

 as secure. 



If you get into a place where your engine is unable 



to turn els, then you are stuck, and the only 



tiling for you to do is to lighten your load or dig out. 



under all circumstances your engine Should be 



n the benefit of your judgement. 



All traction engines to be practical must of a neces- 



be reversible. To accomplish this, the link with 



the double eccentric is the one most generally used, 



