LOGGING IN THE DOUGLAS FIR REGION. 
159 
1 9 by 10 inch three-drum loading engine $2, 825 
1 set of guy lines 100 
1 main loading line 140 
1 trip loading line 100 
1 spotting line : 45 
2 double-sheave blocks 120 
2 single-sheave blocks 63 
Loading engine, repair parts, and materials , 75 
Loading engine, sled i 250 
Oil-burner equipment, including oil-and-water tank 375 
Miscellaneous equipment 100 
Total 4, 193 
Note. — The statement includes operating equipment as well as equipment on hand. 
In many cases two sets of crotch lines, a spreader, and a set of load- 
ing lines (figs. 63 and 64) are used instead of one set of crotcli lines, 
I2.IN AUTV-LUBRlCAT/KS CORNER BLOCK 
Fig. 64. — Overhead loading system. 
the spreader giving the engineer much better control of the log 
when it is in the air than the unmodified crotch line device (fig. 61), 
because it checks the tendency of the log to swing back and forth 
several times before it can be lowered to its position on the car. The 
spreader is about 12 feet long and is made of 45-pound railroad iron. 
The crotch lines are attached to the ends of the spreader by means of 
1 J-inch clevises, the crotch of the upper or hoisting set being about 
8 feet from the spreader, the crotch of the trip set about 10 feet 
from the spreader. The loading lines are about 18 feet long, which 
is ample for logs up to 40 feet in length. Attachments are used for 
longer logs. This device increases the fixed investment about $50. 
With this system the landing place can be made very wide, some- 
times 150 or 200 feet, since few or no landing improvements are 
necessary. No yarding time is lost because of blockecl-up landings ; 
100,000 feet or more of logs can be stored, so that the yarding crew 
can continue at work after the loading crew has been forced to stop 
