The explosive bombing machine or explosive firepower is an easily portable electric current source to the explosive cap to trigger a major explosive charge. It is widely used in mining and demolition.
The use of the term "engine" is derived from the initial design using an electric generator which is operated by rotating the rotary handle or pressing the T-handle. Modern blasting machines are battery powered and operated by key and pushbutton switches, and do not resemble old designs.
A special "capacitive" blasting machine works by filling the capacitor off the battery, then removing the capacitor through an external circuit, called the firing line, to fire the explosive cap. While the machine is idle, an "internal shunt" is connected throughout the output terminal so that any wild voltage induced in an external circuit, for example by nearby radio transmitters, does not have a short short circuit without triggering an explosive cap. The machines also usually include the "cancel" feature to remove the internal capacitor without firing the lid.
The first satisfactory magnetic induction blasting machine was built in 1878 by Henry Julius Smith of Mountain View, New Jersey. The mechanism consists of a pressed T-handle; the lower end of the handle is the rack that pushes the pinion, which in turn pushes the high voltage magneto, which produces the high voltage required to blow the blasting cap.
Video Blasting machine
References
Maps Blasting machine
External links
- Media related to Blasting machine on Wikimedia Commons
Source of the article : Wikipedia
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