US17304A - John d - Google Patents
John d Download PDFInfo
- Publication number
- US17304A US17304A US17304DA US17304A US 17304 A US17304 A US 17304A US 17304D A US17304D A US 17304DA US 17304 A US17304 A US 17304A
- Authority
- US
- United States
- Prior art keywords
- drill
- john
- wing
- rock
- marked
- 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
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000011435 rock Substances 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/36—Percussion drill bits
Definitions
- my invention is in shaping the drill so as to cut a true round hole and also so as to clear'itself from the powdered rock. Also the improved shape strengthens the drill and renders the labor of sharpening much less and prevents great waste of steel and further the form of the cutting edge is such as to insure the greatest execution upon the rock at each blow.
- T o enable others to make and use my invention will proceed to describe its construction and operation.
Description
UNITED STATES PATENT OFFICE.
JOHN D. HOPE, OF NIAGARA FALLS, NEW YORK, ASISIGNOR TO G. A. GARDNER, OF NEW YORK, N. Y.
ROCK-DRILL.
To all whom t may concern Be it known that I, JOI-IN D. Horn, of Niagara Falls, in the county of Niagara and State of NewYork, have invented a new and Improved Form of 4Drills for Drilling Holes in Rocks; and I do hereby declare that the following is a full and eXact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.
The nature of my invention is in shaping the drill so as to cut a true round hole and also so as to clear'itself from the powdered rock. Also the improved shape strengthens the drill and renders the labor of sharpening much less and prevents great waste of steel and further the form of the cutting edge is such as to insure the greatest execution upon the rock at each blow.
T o enable others to make and use my invention will proceed to describe its construction and operation.
I construct my drill rod or shaft in the usual form and after flattening the steel forming the point of the drill I raise on two of the transverse corners a wing or ridge eX- tending up as far as the steel is ilattened or the whole length of steel where it is inserted into an iron rod, said wings being marked A in the accompanying drawings. I then bring the edges of the center and both wings to a cutting surface causing the two central corners and the corner of one wing marked B to cut an outer circle while the corner of the other wing marked C is brought in toward the center, so that the one wing makes a distinct cut from the other in turning in the hole whereby the rock is pulverized with much ,greater rapidity.
Vhat I claim as my invention and desire to secure by Letters Patent s- Not the shaping the cutting point of the drill into the shape of the letter Z as that form of drill has long been in use but it is thel formation and shaping of the wings or,
ridges on the transverse corners of the drill substantially as described.
J Ol-IN D. HOPE.
Witnesses:
SAMUEL T. CALDWELL, H. S. RANsoM.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US17304A true US17304A (en) | 1857-05-12 |
Family
ID=2079663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US17304D Expired - Lifetime US17304A (en) | John d |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US17304A (en) |
-
0
- US US17304D patent/US17304A/en not_active Expired - Lifetime
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