LOGGING IN THE DOUGLAS FIE REGION. 
71 
Fig. 23. — Butt chain. 
run from the main-line drum across the middle of the landing, some 
of the angles formed being a little larger than a right angle. This 
difficulty is generally 
overcome by leading the 
main line through a butt- 
chain block (fig. 22) hung 
to a stump standing in 
line with the yarder and 
landing and 50 feet or 
more from the approach end of the landing. In operation the log is 
yarded to the butt-chain block, the chokers are all unhooked from 
the butt chain, permitting the butt chain to 
be passed through the block. The chokers 
are again hooked to the' butt chain and the 
log continues on its way to the landing. 
OPERATION. 
After the ground around the landing has 
been freed of large chunks of waste mate- 
rial, the butt chain (fig. 23) attached to the 
main line is run out to the first log on the 
new road. The choker men put the chokers 
(figs. 24 and 25) around the end of the logs. 
After the load has been connected to the 
butt chain, the hook tender or head-rigging 
slinger signals for the engineer to haul in 
on the cable and the load starts down the 
road. When it reaches the butt-chain block, 
as it will in most cases, the chaser signals 
for the engine to stop, unhooks the chokers from the butt chain, pulls 
the butt chain through the butt-chain block, rehooks the chokers to 
the butt chain, and signals 
for the engineer to go ahead. 
The load is then dragged 
to the landing, where it is 
disconnected by the chaser. 
or in rare cases, by one of 
the loaders. 
Where the logs are large, 
only one is hauled at a trip. 
In other cases it may be 
practical to yard as many 
as six. In general, the number depends on the volume of the logs, 
the size of the equipment, and the ground conditions. 
Fig. 
!4. — Choker with 
socket. 
Fig. 25.— Choker with eye. 
