Show H herco erco blasting powder for H Herco erco az blasting as ting 1 A I new blasting method od Coole 09 A more compact load ean can be made with herco blasting powder than with other granulations this is an advantage for Herco blasting in which black powder is column loaded in well drill holes and fired with cordeau bickford under certain conditions this new method reduces blasting costs 30 percent herco blasting powder contains grains of various sizes when it is poured into the hole the finer grains fill the spaces between the larger ones as is shown in the drawing g below six hundred pounds of herco blasting powder loaded in a hole six inches in diameter makes a column approximately thirty five feet high as against about forty feet for FF granulation the greater density of herco a I 1 blasting powder makes it possible to concentrate a faw heavier explosives charge at the toe where it is 40 01 i 1 usually most needed aff ays fys herco blasting powder is also well suited for pocket g 0 loading in chambered holes A i wf aa for further information about Herco blasting and herco blantin blasting powder write to the hercules powder company king st wilmington del 34 BIOT IC six hundred pounds pound of F six hundred pounds of or FF blasting blast ipg powder herco blasting powder loaded in a six inch hole loaded in a six inch hole makes a column about 40 makes a column about 35 feet high FF granulation herco powder feet high actual size actual size zm louisville ky pittsburgh pa salt lake city utah pa pa chicago III hazleton birmingham ala denver colo va new york city Potts spottsville pottsville ville pa san Fian francisco cisco calif wilkes barre pa st louis mo pa buffalo N Y duluth minn joplin n mo del wilmington WI Wil mingon chattanooga v tenn los angles calif pittsburg kan |