166 



BULLETIN 711, U. S. DEPARTMENT OF AGRICULTURE. 



In connection with the following discussion of prices and weights, 

 the sizes of most of the loading engines used in the region are given. 

 It will be noted that there is no great range of sizes. The larger sizes 

 are, of course, used in loading the larger timber. The tendency of 

 the industry is to use large loading engines. The sizes used in connec- 

 tion with different loading methods are suggested under " Methods." 



The selling prices of loading engines are given in Table 23. The 

 prices are those of March, 1916, and it can not be said that they are 

 more than substantially correct for that time, since they were fur- 

 nished by manufacturers to be used in this publication and not for the 

 purpose of trading. The prices are on standard engines and do 

 not include any special parts. 



Table 23. — Si::es, weigJit, and prices of loading engines. 



Size. 



Type. 



Capacity of drums. 



Size and working pres- 

 sure of boilers. 



Speed 

 of lines. 



Weight, 



Selling 

 price 



f. o. b. 

 Port- 

 land, 



Tacoma 

 or 



Seattle. 



Inches. 

 6iby 8 



6iby 9 



7 by 10 



7 by 10 



7 by 10 



7 by 10 



7 by 10 



71 by 10 

 9 by 10 



9ibylO 



Twin- 

 drum. 



Double- 

 di-um. 



S i n g le- 

 drum. 



Sing le- 

 drum. 



Double- 

 drum. 



Three- 

 drum. 



Four- 

 dnun. 



Three- 

 drum. 



Three- 

 drum. 



T h rce- 

 drum. 



foOO feet 2-inch line 



\780 feet |-inch line , 



/Lower, 1,050 feet ^inch line , 

 \Upper, 1,050 feet f-tnch line 

 1,650 feet f-inch line 



2,340 feet f-inch line 



2,580 feet f-inch line 



Main, 2,580 feet J-inch line. . . 

 Trip, 2,580 feet J-inch line . . . 

 "ain, 2,580 feet J-inch line. . . 

 Trip, 1,480 feet f-inch line.. . 

 Main upper, 1,480 feet f-inch 



line. 

 Trip upper, 1,480 feet f-inch 



line. 

 1 Main lower, 1,480 feet f-inch 



line. 

 Trip lower, 1,480 feet f-inch 

 line. 

 /Main, 1,200 feet ^-tnch line. . . 



\Trip, 350 feet J-inch line 



/Main, 1,740 feet l-inch line. . . 

 \Lowcr, 830 feet -J-inch line . . 

 Main, 1,100 feet 1-inch line. . . 

 Trip, 1,890 feet f-inch line . . , 

 Car drum, 1,180 feet f-inch 

 line. 



36 by 84 inches high, 

 I 150 working pressure. 

 ,36 by 84 inches high, 

 I 150 working pressure. 

 ,42 by 84 inches high, 

 I 150 working pressure. 

 44 by 106 inches high, 



175 working pressure. 

 1 44 by 106 inches high, 

 I 175 working pressure. 

 [ii by 106 inches high, 



175 working pressure. 



44 by 106 inches high, 

 175 working pressure. 



|42 by 84 inches high, 

 r 150 working pressure. 

 1 48 by 103 inches high, 

 I 175 working pressure. 



50 by 120 inches high, 

 175 working pressure. 



Feet per 

 minute. 



275 



/Lower, 300 

 \Upper, 425 

 270 



400 



/Main, 340 



\Trip, 400 



/Main, 400 



\Trip, 400 



/Main, 

 \Trip, 



/Main, 



\Trip, 



/Main, 



\L»wer, 



Main, 



Trip, 



Car, 



400 

 400 



293 

 383 

 376 

 470 

 370 

 440 

 440 



Pounds. 

 4,300 



I 9, 100 

 8,100 



11,000 



|l4, 800 

 |l6, 400 



}u. 



11,000 

 25,500 



[24,000 



SI, 125 



1,240 

 1,295 



1,250 



1,625 

 1,800 



1,900 



1,745 

 2,825 



It was pointed out in the discussion of yarding that some oper- 

 ators use an extra yarding engine for the purpose of reducing the 

 time lost in moving from one setting to another. This means that 

 such operators have an extra loading engine also if the power used 

 in loading is furnished by a separate loading engine. 



LOADING KNGINE REPAIR PARTS AND MATERIALS. 



For the purpose of a timber appraisal the fixed investment in 

 loading engine repair parts and materials in connection with one 

 engine may be placed at about $75. 



