File:Intensive farming and use of dynamite (1911) (14778374323).jpg

Identifier: intensivefarming00penn (find matches)
Title: Intensive farming and use of dynamite
Year: 1911 (1910s)
Authors: Pennsylvania railroad company. (from old catalog)
Subjects: Explosives
Publisher: (Philadelphia, Pa.) The Pennsylvania railroad
Contributing Library: The Library of Congress
Digitizing Sponsor: Sloan Foundation

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ing the *pnnier; that is, the cartridge in which the blast-ing cap crimped to the fuse has been placed. It is also a goodplan to load the next hole on either side of the middle one withthree cartridges instead of one. When water covers the holes, oralmost fills them, it acts as a tamping, and no other tamping isnecessary. The middle hole should be loaded last, so as notto keep the blasting cap and fuse under water longer than abso-lutely necessary. The blasting cap SHOULD BE CAREFULLYCRIMPED TO THE FUSE WITH A CAP CRIMPER, and NOT with aknife or the teeth. After the blasting cap has been crimped to thefuse, thick grease or tallow (not oil) should be spread over thefuse where it enters the blasting cap. You cannot be sure thateverything will work satisfactorily, unless you use a high-gradeof waterproof fuse and a No. 6, or stronger, blasting cap. Blast-ing caps are weakened by dampness, so it is always better to usea grade stronger than one which would only just explode thedynamite. 49
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GETTING THE FARM IN SHAPE Always cut the end of the fuse squarely across, and alwaysput the fresh cut end in the blasting cap. The iron or steel bars for punching the holes in the groundshould be a little larger in diameter than the dynamite cartridges,sharpened to a blunt point on one end and at least two feet longerthan the depth of the ditch. For making holes in dry ground,where the bar is driven down with sledges or mauls, it is a goodplan to have it only long enough to extend about four inchesabove the surface when the hole is deep enough. This short barshould have a ring or collar welded on close to the top, so thatit can be easily loosened with a crowbar if it becomes fast. Thebars should have a blunt point and not a long, tapering one, becausethe dynamite cartridge cannot get to the bottom of a hole madeby the latter. BAR FOR PUNCHING THE HOLES The labor of punching the holes may be reduced by spacingthem farther apart, but when this is done it is necessary to increaseeach cha

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