. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BRFAKAOF OF F/iflft TN TRANRTT. 17 Strength of -fillers.—The strength of various grades of strawboard fillers on the market was accurately measured in compression ma- chines, and, as indicated in Table 6, it varies with their respective weights. Table 6.—Crushing strength of fillers. Trade name. Weight per set. Crushing strength. Strength of tips. ....: Pounds. 3 3 3 2 Ounces. 12 6 3 8 Pounds. 685 595 471 325 Pounds. 57 42 38 No. 2 36 The strength of the tips of the fillers was obtained by subject- ing them to pre
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BRFAKAOF OF F/iflft TN TRANRTT. 17 Strength of -fillers.—The strength of various grades of strawboard fillers on the market was accurately measured in compression ma- chines, and, as indicated in Table 6, it varies with their respective weights. Table 6.—Crushing strength of fillers. Trade name. Weight per set. Crushing strength. Strength of tips. ....: Pounds. 3 3 3 2 Ounces. 12 6 3 8 Pounds. 685 595 471 325 Pounds. 57 42 38 No. 2 36 The strength of the tips of the fillers was obtained by subject- ing them to pressure in a like manner. The close relationship be- tween filler tips and damaged eggs is seen throughout this investiga- tion. It has been observed in field work, and amply proven in the laboratory. For example, the effect of measured blows delivered in a definite way against the end of the case did not wreck the shell of the egg until the tips of the fillers were bent so that the sides of the strawboard cell came in contact with the wood of the case. The tips of the so-called No. 1 fillers were found to protect the eggs on the ends from becoming leakers more effectively than 3-pound or medium fillers, but heavy shocks were observed to cause a light cracking before these heavy tips B T T T T T T T Fig. 9.—Longitudinal and transverse sections of an egg filler. The strips which form the cell Avails of an egg filler are solid (B) on one side and slit (A) on the other (fig. 9). When the filler is com- pleted, half of the solid sides are upward in the filler, and the other half, running in a transverse direction, are downward. Added safety is gained by placing the upper solid side next to the end and center board of the case, as this prevents the egg from toppling over against the Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not p
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