276 
LOGGING 
diagonally through the block to the upper rear end.* The slide 
timbers were spaced 5 inches apart and the cable ran in this 
space underneath the turn of logs. An automatic dump was 
installed at the foot of the slide by cutting a rectangular section 
15 by 60 inches in size from the slide timbers."^ A turn of logs 
was made up at the head of the slide behind the hold-back block 
_fl^^ 
Fig. 
Adapted from The Timberman. 
95. — A Snubbing Device for lowering Logs down a Chute. 
and then lowered by gravity, the speed being controlled by 
means of a friction brake. When the hold-back block reached 
the automatic dump the pressure of the logs behind it caused 
it to turn downward into the slot in the slide and the logs passed 
over it. The friction was then thrown into gear and as the dnun 
reeled in the cable the hold-back block was pulled up to the head 
1 See Fig. 95o. ^ See Fig. 956. 
