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US805008A - Rock-drill. - Google Patents

Rock-drill. Download PDF

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Publication number
US805008A
US805008A US25419605A US1905254196A US805008A US 805008 A US805008 A US 805008A US 25419605 A US25419605 A US 25419605A US 1905254196 A US1905254196 A US 1905254196A US 805008 A US805008 A US 805008A
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United States
Prior art keywords
drill
rock
edges
dust
angular
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Expired - Lifetime
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US25419605A
Inventor
William John Ertle
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Priority to US25419605A priority Critical patent/US805008A/en
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Publication of US805008A publication Critical patent/US805008A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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

  • Figure l is a side elevation of a drill embodying my improvements.
  • Fig. 2 is a similar view at right angles to Fig. 1.
  • Fig. 3 is atransverse sectional view taken on the plane indicated by the line a a of Fig. 1.
  • the stock 1 of my improved drill is angular in cross-section, here shown as rectangular, and is provided with the base portion 2, of larger sectional area, and the shank 3, which tapers from the said enlarged portion to within a suitable distance of the point, the point 4 being widened, as shown, and being formed by converging obtuse-angled cutting edges 5 and outwardly-flared side edges 6, said edges and flared sides being coincident with the sides of the stem.
  • the tapered shank 3 being of rectangular form cross-sectionally provides angular edges 7, which extend from end to end of the drill and which act as the drill is turned when in use to keep the drill-dust in motion, prevent the drilldust from packing, and to facilitate and cause a clearing-out of the drill-dust as the drill-hole deepens.
  • the cylindrical shank 8 At the inner end of the drill is the cylindrical shank 8.
  • a drill of the class described having a base portion angular in cross-section and of larger sectional area, a tapered stem extending outwardly from said enlarged base portion and of angular form cross-sectionally, to provide correspondingly-shaped edges which extend from end to end thereof, and a broadened point having obtuse-angled converging cutting edges and outwardly-flared sides coincident with the sides of the stem, substantially as described' WILLIAM JOHN ERTLE.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

UNIT D STATES PATENT OFFICE.
W'ILLIAM JOHN ERTLE, OF KNOWLES, CALIFORNIA.
ROCK-DRILL.
Specification of Letters Patent.
Patented Nov. 21, 1905.
Application filed April 6, 1905. Serial No. 254,196.
To (Ml whom, it may cortoern:
Be it known that I, WILLIAM JOHN ERTLE,
edges throughout its length, which act to' keep the dust made by drilling loose, prevent it from becoming packed around the drill, and cause the dust to be cleaned out as the drill-hole deepens, as hereinafter described and claimed. I
In the accompanying drawings, Figure l is a side elevation of a drill embodying my improvements. Fig. 2 is a similar view at right angles to Fig. 1. Fig. 3 is atransverse sectional view taken on the plane indicated by the line a a of Fig. 1.
The stock 1 of my improved drill is angular in cross-section, here shown as rectangular, and is provided with the base portion 2, of larger sectional area, and the shank 3, which tapers from the said enlarged portion to within a suitable distance of the point, the point 4 being widened, as shown, and being formed by converging obtuse-angled cutting edges 5 and outwardly-flared side edges 6, said edges and flared sides being coincident with the sides of the stem. The tapered shank 3 being of rectangular form cross-sectionally provides angular edges 7, which extend from end to end of the drill and which act as the drill is turned when in use to keep the drill-dust in motion, prevent the drilldust from packing, and to facilitate and cause a clearing-out of the drill-dust as the drill-hole deepens. At the inner end of the drill is the cylindrical shank 8.
Having thus described my invention, I claim A drill of the class described, having a base portion angular in cross-section and of larger sectional area, a tapered stem extending outwardly from said enlarged base portion and of angular form cross-sectionally, to provide correspondingly-shaped edges which extend from end to end thereof, and a broadened point having obtuse-angled converging cutting edges and outwardly-flared sides coincident with the sides of the stem, substantially as described' WILLIAM JOHN ERTLE.
Witnesses:
WALTER JOHN BIssoN, DAVID LocKToN.
US25419605A 1905-04-06 1905-04-06 Rock-drill. Expired - Lifetime US805008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US25419605A US805008A (en) 1905-04-06 1905-04-06 Rock-drill.

Applications Claiming Priority (1)

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US25419605A US805008A (en) 1905-04-06 1905-04-06 Rock-drill.

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US805008A true US805008A (en) 1905-11-21

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US25419605A Expired - Lifetime US805008A (en) 1905-04-06 1905-04-06 Rock-drill.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202035A (en) * 1961-04-28 1965-08-24 Sarmi S A Soc D Applic De Rech Self-boring wall-plugs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202035A (en) * 1961-04-28 1965-08-24 Sarmi S A Soc D Applic De Rech Self-boring wall-plugs

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