Rock Blasting a Practical Treatise On the Means Employed in Blasting Rocks for
Rock Blasting a Practical Treatise On the Means Employed in Blasting Rocks for
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In our eReader you can find the full English version of the book. Read Rock Blasting a Practical Treatise On the Means Employed in Blasting Rocks for Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Rock Blasting a Practical Treatise On the Means Employed in Blasting Rocks for
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To quickly assess the difficulty of the text, read a short excerpt:
In one kind, the electricity is excited by 56 . EOCK BLASTING.
friction, and stored in a condenser to be afterwards discharged by suitable means provided for the pur- pose. In the other kind, the electricity is excited by the motion of an armature before the poles of a magnet. The former kind are called "frictional electric " exploders ; the latter kind are known as "magneto-electric" exploders. When a magneto- electric machine contains an electro-magnet instead of a permanent magnet, it is des...cribed as a "dynamo- electric exploder.
Frictional machines act very well as exploders so long as they are kept in a proper state. But as they are injuriously affected by a moist atmosphere, and weaken rapidly with use by reason of the wear- ing away of the rubbers, it is necessary to take care that they be in good electrical condition before using them for firing. Unless this care be taken, the quantity of electricity excited by a given number of revolutions of the plate will be very variable, and vexatious failures will ensue.
What to read after Rock Blasting a Practical Treatise On the Means Employed in Blasting Rocks for?
You can find similar books in the "Read Also" column, or choose other free books by George Guillaume Andr to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In one kind, the electricity is excited by 56 . EOCK BLASTING.
friction, and stored in a condenser to be afterwards discharged by suitable means provided for the pur- pose. In the other kind, the electricity is excited by the motion of an armature before the poles of a magnet. The former kind are called "frictional electric " exploders ; the latter kind are known as "magneto-electric" exploders. When a magneto- electric machine contains an electro-magnet instead of a permanent magnet, it is des...cribed as a "dynamo- electric exploder.
Frictional machines act very well as exploders so long as they are kept in a proper state. But as they are injuriously affected by a moist atmosphere, and weaken rapidly with use by reason of the wear- ing away of the rubbers, it is necessary to take care that they be in good electrical condition before using them for firing. Unless this care be taken, the quantity of electricity excited by a given number of revolutions of the plate will be very variable, and vexatious failures will ensue.
What to read after Rock Blasting a Practical Treatise On the Means Employed in Blasting Rocks for?
You can find similar books in the "Read Also" column, or choose other free books by George Guillaume Andr to read onlineMoreLess
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