US203097A - Improvement in blasting rocks - Google Patents
Improvement in blasting rocks Download PDFInfo
- Publication number
- US203097A US203097A US203097DA US203097A US 203097 A US203097 A US 203097A US 203097D A US203097D A US 203097DA US 203097 A US203097 A US 203097A
- Authority
- US
- United States
- Prior art keywords
- improvement
- blasting
- blasting rocks
- coal
- rocks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005422 blasting Methods 0.000 title description 5
- 239000011435 rock Substances 0.000 title description 5
- 239000003245 coal Substances 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 240000004658 Medicago sativa Species 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D5/00—Safety arrangements
Definitions
- My improvement in blasting consists of having an unoccupied space between the top of the powder or other explosive material and the lower end of the tamping, which enables thework to be done with much less of the explosive material, and the flash of the explosion extinguishes before the oxygenof the air can combine with it, so that it cannot ignite the gases set free from the fissures and leaders 'of coal-mines by the explosion, thus preventing the burning of the mines, ing it does not, owing to the more elastic nature of the force, break the coal so finely as when the space is not employed.
- A is the rock or coal bed, in which the hole B for the charge is drilled in the usual or any approved way.
- 0 is the charge of powder or other explosive material in the bottom of the hole; D, the unoccupied space above, and E the tamping, the latter being located as far and in coal-mim,
- the button E may be fixed on the tube F by which the fuse is inserted.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Description
T. J. WHEATLE'Y.
Blasting Books.
No. 203,097 Patented April 30, 1878.
Hi llll UNITED STATES PATENT OFFICE.
THOMAS J. WHEATLEY, O WI KHsBARRE, PENNSYLVANIA.
IMPROVEMENT I N BLASTING ROCKS.
Specification forming part offL'etters Patent No. 203,097, dated April 30, 1878 application filed i 4 y June 12, 1876.
To all whom it may concern:
Be it known that I, THOMAs J. WHEATLEY, of Wilkesbarre, in the county of Luzerne and State of Pennsylvania, have invented a new and useful Improvement in Blasting Rocks, of which the following is a specification:
My improvement in blasting consists of having an unoccupied space between the top of the powder or other explosive material and the lower end of the tamping, which enables thework to be done with much less of the explosive material, and the flash of the explosion extinguishes before the oxygenof the air can combine with it, so that it cannot ignite the gases set free from the fissures and leaders 'of coal-mines by the explosion, thus preventing the burning of the mines, ing it does not, owing to the more elastic nature of the force, break the coal so finely as when the space is not employed.
The drawing is a section of a rock or coal lead, showing a charge set according to my invention. 1
' A is the rock or coal bed, in which the hole B for the charge is drilled in the usual or any approved way. 0 is the charge of powder or other explosive material in the bottom of the hole; D, the unoccupied space above, and E the tamping, the latter being located as far and in coal-mim,
packed lightly at the beginning, so as not to drive the wad. Its own pressure against the sides of the hole will, after a certain quantity is packed in, be sufiicient to sustain the heavy packing afterward necessary. The button E may be fixed on the tube F by which the fuse is inserted.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- The method herein described of charging a I mine or blast, which consists in confining the charge or ,cartridge at a little'distance from the tamping or plug,'and leaving an air-space between the powder and tamping, all sub stantially as set forth.
THOMAS J. WHEATLEY.
In presence of- GEo. R. WRIGHT, RICHARD B. REILEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US203097A true US203097A (en) | 1878-04-30 |
Family
ID=2272502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US203097D Expired - Lifetime US203097A (en) | Improvement in blasting rocks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US203097A (en) |
-
0
- US US203097D patent/US203097A/en not_active Expired - Lifetime
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