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Chapter 27 



M 148 580 

 Figure 27-1 6A. — No. 1 Common — Predicted yield of 1 -inch-wide cuttings when lumber 

 is processed by gong ripping first. (Drawing after Hallock 1980.) 



longest cutting, locate the intersection of the 60-inch cutting length and the 1 .5- 

 inch rip width curve. Project this point horizontally to the left-hand scale labeled 

 "Yield Adjustment" to obtain a value of -I- 0.3 percent. Repeat this procedure for 

 the 48-, 26-, and 12-inch cutting lengths. These yields are found to be +1.3 

 percent, +4.5 percent, and +7.5 percent, respectively. Enter all adjustment 

 values in the calculation form, table 27-121. Adjusted yield values are now 

 entered and are the sum for each cutting length of the basic value from the 1-inch 

 nomogram and the width adjustment value. 



The net yields for each cutting length can now be derived from the adjusted 

 yield values. Since the values shown in the adjusted column are cumulative 

 totals (the indicated length and all longer cuttings) the predicted yield for each 



