Figure V-6. The sacks of viscera 

 are loaded onto the elevator and 

 are hand-winched frcm the plat- 

 form up to the dock level. 



the draining table where they had 

 to be picked out from the visceral 

 portion. The only remedy for the 

 above problem, without interfering 

 with the cannery operation, was to 

 periodically clean off the fin grate. 

 This solution was not ideal. (2) 

 Separation of the soft vi3cer?>l por- 

 tions made disposal of the remainder 

 of the trimmings more difficult. 

 Ordinarly, the v*iole waste flowed 

 easily from the gurry bin into the 

 scow. Since approximately 85 per- 

 cent£/of the viscera, or soft por- 

 tions, were diverted for the collec- 

 tion operation, very little of this 

 material entered the cannery* s gurry 

 bin. The mass of heads, tails, and 

 fins were difficult to remove from 

 the bin. This difficulty required 

 the use of additional personnel to 

 empty the bin and then to dvunp the 

 scow; normally, one man carried out 

 the entire operation. This problem 

 could possibly be solved by building 

 more slope into both bin eind gurry 

 scow. 



Under optimum conditions (when 

 this particular cannery was running all three iron chinks steadily), a 

 maximum of thirty-five 65-po\md sacks of viscera were collected in an hour. 

 These conditions were seldom attained because most of the collection was 

 made during the first half of the season at a time when the cannery was 

 not operating at full capacity. An average of 120 sacks per day (range of 

 90 to 150) was collected with the facilities used. 



During an eight-hour shift, only one-half to three-fourths of the 

 time of the workers was spent in actual collection of the material. The 

 remainder of the time was spent in taking the material to the cold-storage 

 plant, emptying the gurry bin and dumping the gurry scow, and making minor 

 adjustments to and cleaning the equipment. Also, the collection was car- 

 ried out over only a portion of the season, and only until the desired 

 quota of 100,000 pounds was reached. Had operations continued for the 

 final ten days of the season, the prorating of certain fixed costs and cap- 

 ital investments for a larger production would have resulted in a smaller 



2/ It is estimated that 60 to 70 percent of the theoretical yield of 



viscera was collected. This value was based on the estimate of 25 

 pounds of vdiole waste per case of salmon. The viscera represent 29 

 percent of the irfiole waste or 7.3 pounds of viscera per case of sal- 

 mon. Seme of the loss of viscera, probably up to 15 percent of the 

 total amount, occiirred at the draining table where the small portions 

 fell through the slots. 



55 



