US2807A - Attgeb for boriire babth - Google Patents

Attgeb for boriire babth Download PDF

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Publication number
US2807A
US2807A US2807DA US2807A US 2807 A US2807 A US 2807A US 2807D A US2807D A US 2807DA US 2807 A US2807 A US 2807A
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Prior art keywords
boriire
babth
attgeb
tube
plates
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Expired - Lifetime
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/44Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

Definitions

  • a center worm (o) for 'red similar to a common auger has a cross piece (d) at its upper end, with a groove 1n the upperside running its whole lengtlnthe extremities ⁇ being notched out the width ⁇ of the groove at the betteln; this cross piece is firmly riveted to the projection (a a() with the worin directly under the center of the tube; the groove being connected there with; it will thus be obvious, that whatever' the amount of the load is above the plates there will be a constant communication preserved between the superincumbent air and the under side of the plates (Z2) thus relieving the auger of the pressure of the air in drawing it out, if the tube is illed with water, the chalk, clay Ste.
  • the tube (a) is connected with the boring rods in any of the usual methods; by this ar 'angeinent a greater load may be raised, than in any other way by the same power, and the auger be made to cut much more easily.

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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)

Description

ernten.
JNO. M. COOPER, OF NEVVBERN, ALABAMA.
YAUGER FOR BORING EARTH.
Specification of Letters Patent No. 2,807, dated October 7, 1842.
` ence being had to the accompanying drawing,.maling a pr 1t ot' this Specilication, in which- Figure l, is a perspective view; Fig. 2, a section longitudinally through the center.
On the lower end of a tube (a), of any required length, are two project-ions (af a),
`on each side, at right angles to the tube, to
which` I aitix two plates (ZJ) horizontally,
. occupying a little more than a quarter of a circle on each side; one end of each of these plates is bent down and assumes a spiral form as shown at (b), the lower edges being sharpened so as to cut; a center worm (o) for 'red similar to a common auger has a cross piece (d) at its upper end, with a groove 1n the upperside running its whole lengtlnthe extremities `being notched out the width `of the groove at the betteln; this cross piece is firmly riveted to the projection (a a() with the worin directly under the center of the tube; the groove being connected there with; it will thus be obvious, that whatever' the amount of the load is above the plates there will be a constant communication preserved between the superincumbent air and the under side of the plates (Z2) thus relieving the auger of the pressure of the air in drawing it out, if the tube is illed with water, the chalk, clay Ste. which is being bored will always be kept wet at the point where the cutters are acting. The tube (a) is connected with the boring rods in any of the usual methods; by this ar 'angeinent a greater load may be raised, than in any other way by the same power, and the auger be made to cut much more easily. A
`What I claim as my invent-ion and desire to secure by Letters Patent, is-
The combination and arrangement of the hollow tube (a.) and grooved cross piece (CZ) with the boring apparatus so as to keep up a communication between the superincumbent air, or water, in the shaft, and the underside of the plate (b), all as herein described.
JOHN M. COOPER.
)Witnesses TH. R. BORDEN, ALFRED SEXTON,
US2807D Attgeb for boriire babth Expired - Lifetime US2807A (en)

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US2807A true US2807A (en) 1842-10-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060025792A1 (en) * 2004-08-02 2006-02-02 Gibson Roger A Surgical instrument attachment system
USD1073420S1 (en) * 2022-04-22 2025-05-06 Yajun Ni Planting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060025792A1 (en) * 2004-08-02 2006-02-02 Gibson Roger A Surgical instrument attachment system
USD1073420S1 (en) * 2022-04-22 2025-05-06 Yajun Ni Planting device

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