US2554780A - Blade protector device - Google Patents

Blade protector device Download PDF

Info

Publication number
US2554780A
US2554780A US780734A US78073447A US2554780A US 2554780 A US2554780 A US 2554780A US 780734 A US780734 A US 780734A US 78073447 A US78073447 A US 78073447A US 2554780 A US2554780 A US 2554780A
Authority
US
United States
Prior art keywords
bit
protector
elements
carrier
sheet
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
Application number
US780734A
Inventor
Charles C Goolsbee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reed Roller Bit Co
Original Assignee
Reed Roller Bit Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reed Roller Bit Co filed Critical Reed Roller Bit Co
Priority to US780734A priority Critical patent/US2554780A/en
Application granted granted Critical
Publication of US2554780A publication Critical patent/US2554780A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21B12/00—Accessories for drilling tools
    • E21B12/04—Drill bit protectors
    • 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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits

Definitions

  • This invention relates to protectors for cutter blades and refers more particularly to a protector which may bemounted upon a rotary drill bit to protect the cutter elements thereof during storage, shipping or th like.
  • Rotary drill bits obviously rely upon their cut-- ter elements for their efiectiveness' in operation. Duringstorage or shipping of such bits the cutter elements are likely to become broken, chipped orotherwise damaged thus necessitating the expense and delay of replacing the cutters of the bit.
  • An object of this invention is to provide an inexpensive protector for the cutters of a drill bit that may be readily installed upon the bit and removed therefrom.
  • Fig. 1 is a perspective View of a protector embodying this invention
  • Fig. 2 is a side edge view of the protector shown in Fig. 1;
  • Figs. 3 and 4 are side elevational views of the protector of Figs. 1 and 2 shown after installation upon a rotary drag type bit.
  • the numeral l0 designates the carrier portion of the protector.
  • This portion is preferably fabricated of sheet steel but may be made from any suitable rigid, tough material;
  • the carrier is an elongated sheet and projecting from one edge thereof are protector elements I I and I2. These elements may be curved projections and are formed in such fashionas to provide elongated openings I3 adjacent the side or edge of carrier ID.
  • openings I3 are upon opposite sides of carrier l0. These openings permit insertion of the cutter elements of a drag type bit into the hollow interior of the protector elements.
  • the elements II and i2 encase or sheath the cutters upon installation of the device upon a bit.
  • Carrier I0 has portions extending longitudinally past the protector elements and these facilitate mounting of the protector device upon a bit in such fashion that the device may be easily installed upon a' bit and removed therefrom. It is preferred that the width of the carrier be as great as the bit can accommodate so it may be frictionally secured to the bit. In order to provide extra width for the carrier a cut-away por tion Ida. may be provided in the edge of the carrier remote from the protector elements and aligned with the division between the elements.
  • a drag type bit It having removable cutter blades 15 and I6 is shown.
  • the blades l5 and [6 are of the usual form and are oppositely mounted so that the cutter edge of each blade will move in the same direction upon rotation of the bit in drilling.
  • the carrier H3 is slipped between the blades [5 and It, the cut-away portion [0a spanning the junction between the blades.
  • the end portions of carrier H) are then bent about the bit to releasably clamp the protector thereto. This may be easily accomplished manually with the aid of a hammer and provides an inexpensive and effective and readily releasable means for securing the protector device to the bit.
  • protectors may be provided for bits having more than two cutters such as for example those known as three-way and four-way bits.
  • a blade protector device adaptable for use in conjunction with rotary drill bits comprising a carrier formed of tough, rigid sheet material and being substantially rectangular in shape with its end portions adapted to be bent upon themselves and engaged around a bit to releasably mount the carrier thereon, protector elements integral with and projecting from the carrier in a curved path, said elements being disposed in offset planes on opposite sides of the carrier and having portions adapted upon installation of the device upon a bit to overlie and encompass the cutter edges of the bit blades.
  • a blade protector device adaptable for use in conjunction with drag type rotary drill bits, comprising a carrier formed of tough, rigid sheet material and being substantially rectangular in shape, protector elements integral with and projecting from one longitudinal edge of the carrier, said elements being curved and directed in opposite directions from the longitudinal edge of the carrier, said elements also being adapted upon installation of the device upon a bit to overlie and encompass the cutter edges of the bit blades, and end extensions upon the carrier, which are adapted to be bent around the blades of the bit to frictionally engage the same and thereby releasably mount the device upon a bit.
  • a blade protector device adaptable for use in conjunction with drag type rotary drill bits having a pair of cutter edges which are in offset planes relative to each other, said device comprising a sheet of tough, rigid material and hollow protector elements secured to and projecting outwardly from one edge of the sheet, said elements having openings adjacent the sheet edge, but upon opposite sides of said sheet, for receiving the offset cutter edges of a bit upon installation of the device upon the bit.
  • a blade protector device adaptable for use in conjunction with drag type rotary drill bits having a pair of cutter edges which are in offset planes relative to each other, said device comprising an elongated rigid metallic sheet, two oppositely curved protector elements projecting from one longitudinal edge of the protector, the protector elements having openings adjacent the sheet which openings are in offset planes relative to each other and are adapted to receive the cutter blade edges of a bit upon assembly of the device upon a bit, and clamping means carried by the sheet whereby the device may be releasably secured to a bit.
  • a blade protector device adaptable for use in conjunction with drag type rotary drill bits having a pair of cutter edges which are in ofi'set planes relative to each other, said device comprising an elongated rigid metallic sheet, two oppositely curved protector elements projecting from One longitudinal edge of the protector, the protector elements having openings adjacent the sheet which openings are in offset planes relative to each other and are adapted to receive the cutter blade edges of a bit upon assembly of the device upon a bit, and the sheet having end portions extending beyond the protector elements, each end portion being adapted to be bent upon itself and around one of the blades of the bit whereby said device may be releasably mounted upon a bit.

Description

May 29, 1951 c. c. GOOLSBEE 8 BLADE PROTECTOR DEVICE Filed Oct. 18, 194"! Char/e5 C Goo/s b e IN V EN TOR.
. ME. W
l ATTORNEYS Patented May 29, 1951 2,554,780 BLADE PROTECTOR DEVICE Charles C. Goolsbee, Houston, Tex., assignor to Reed Roller Bit Company, Houston, Tex., a corporation of Texas Application October 18, 1947, Serial No. 780,734
Claims.
This invention relates to protectors for cutter blades and refers more particularly to a protector which may bemounted upon a rotary drill bit to protect the cutter elements thereof during storage, shipping or th like.
Rotary drill bits obviously rely upon their cut-- ter elements for their efiectiveness' in operation. Duringstorage or shipping of such bits the cutter elements are likely to become broken, chipped orotherwise damaged thus necessitating the expense and delay of replacing the cutters of the bit.
An object of this invention is to provide an inexpensive protector for the cutters of a drill bit that may be readily installed upon the bit and removed therefrom.
Other and further objects of the invention will appear from the following description.
In the accompanying drawings which form a part of the instant specification and are to be read in conjunction therewith and wherein like reference numerals are employed to indicate like parts in the various views;
Fig. 1 is a perspective View of a protector embodying this invention;
Fig. 2 is a side edge view of the protector shown in Fig. 1; and
Figs. 3 and 4 are side elevational views of the protector of Figs. 1 and 2 shown after installation upon a rotary drag type bit.
Referring to the drawings, the numeral l0 designates the carrier portion of the protector. This portion is preferably fabricated of sheet steel but may be made from any suitable rigid, tough material; The carrier is an elongated sheet and projecting from one edge thereof are protector elements I I and I2. These elements may be curved projections and are formed in such fashionas to provide elongated openings I3 adjacent the side or edge of carrier ID. By referring to Fig. 2 it will be seen that openings I3 are upon opposite sides of carrier l0. These openings permit insertion of the cutter elements of a drag type bit into the hollow interior of the protector elements. Thus the elements II and i2 encase or sheath the cutters upon installation of the device upon a bit.
Carrier I0 has portions extending longitudinally past the protector elements and these facilitate mounting of the protector device upon a bit in such fashion that the device may be easily installed upon a' bit and removed therefrom. It is preferred that the width of the carrier be as great as the bit can accommodate so it may be frictionally secured to the bit. In order to provide extra width for the carrier a cut-away por tion Ida. may be provided in the edge of the carrier remote from the protector elements and aligned with the division between the elements.
Installation of the protector upon a bit is simple and the method of installation may be readily understood by reference to Figs. 3 and 4. In these figures a drag type bit It having removable cutter blades 15 and I6 is shown. The blades l5 and [6 are of the usual form and are oppositely mounted so that the cutter edge of each blade will move in the same direction upon rotation of the bit in drilling. The carrier H3 is slipped between the blades [5 and It, the cut-away portion [0a spanning the junction between the blades. The end portions of carrier H) are then bent about the bit to releasably clamp the protector thereto. This may be easily accomplished manually with the aid of a hammer and provides an inexpensive and effective and readily releasable means for securing the protector device to the bit.
It is contemplated that protectors may be provided for bits having more than two cutters such as for example those known as three-way and four-way bits.
From the foregoing it will be seen that this invention is one well adapted to attain all of the ends and objects hereinabove set forth together with other advantages which are obvious and which are inherent to the structure.
It will be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims.
As many possible embodiments may be made of the invention without departing from the scope thereof it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.
Having described my invention, I claim:
1. A blade protector device adaptable for use in conjunction with rotary drill bits comprising a carrier formed of tough, rigid sheet material and being substantially rectangular in shape with its end portions adapted to be bent upon themselves and engaged around a bit to releasably mount the carrier thereon, protector elements integral with and projecting from the carrier in a curved path, said elements being disposed in offset planes on opposite sides of the carrier and having portions adapted upon installation of the device upon a bit to overlie and encompass the cutter edges of the bit blades.
2. A blade protector device adaptable for use in conjunction with drag type rotary drill bits, comprising a carrier formed of tough, rigid sheet material and being substantially rectangular in shape, protector elements integral with and projecting from one longitudinal edge of the carrier, said elements being curved and directed in opposite directions from the longitudinal edge of the carrier, said elements also being adapted upon installation of the device upon a bit to overlie and encompass the cutter edges of the bit blades, and end extensions upon the carrier, which are adapted to be bent around the blades of the bit to frictionally engage the same and thereby releasably mount the device upon a bit.
3. A blade protector device adaptable for use in conjunction with drag type rotary drill bits having a pair of cutter edges which are in offset planes relative to each other, said device comprising a sheet of tough, rigid material and hollow protector elements secured to and projecting outwardly from one edge of the sheet, said elements having openings adjacent the sheet edge, but upon opposite sides of said sheet, for receiving the offset cutter edges of a bit upon installation of the device upon the bit.
4. A blade protector device adaptable for use in conjunction with drag type rotary drill bits having a pair of cutter edges which are in offset planes relative to each other, said device comprising an elongated rigid metallic sheet, two oppositely curved protector elements projecting from one longitudinal edge of the protector, the protector elements having openings adjacent the sheet which openings are in offset planes relative to each other and are adapted to receive the cutter blade edges of a bit upon assembly of the device upon a bit, and clamping means carried by the sheet whereby the device may be releasably secured to a bit.
5. A blade protector device adaptable for use in conjunction with drag type rotary drill bits having a pair of cutter edges which are in ofi'set planes relative to each other, said device comprising an elongated rigid metallic sheet, two oppositely curved protector elements projecting from One longitudinal edge of the protector, the protector elements having openings adjacent the sheet which openings are in offset planes relative to each other and are adapted to receive the cutter blade edges of a bit upon assembly of the device upon a bit, and the sheet having end portions extending beyond the protector elements, each end portion being adapted to be bent upon itself and around one of the blades of the bit whereby said device may be releasably mounted upon a bit.
CHARLES C. GOOLSBEE.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 326,661 Lane Sept. 22, 1885 1,038,896 Jolly Sept. 17, 1912 1,109,044 Conti Sept. 1, 1914 1,528,369 Fuller Mar. 3, 1925 1,652,283 Lewis Dec. 13, 1927 1,830,074 Robichaux Nov. 3, 1931 1,830,133 Rhode Nov. 3, 1981 1,882,268 Appleman Oct. 11, 1932 1,945,160 Pearce Jan. 30, 1934 2,053,707 Farmer Sept. 8, 1936
US780734A 1947-10-18 1947-10-18 Blade protector device Expired - Lifetime US2554780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US780734A US2554780A (en) 1947-10-18 1947-10-18 Blade protector device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US780734A US2554780A (en) 1947-10-18 1947-10-18 Blade protector device

Publications (1)

Publication Number Publication Date
US2554780A true US2554780A (en) 1951-05-29

Family

ID=25120508

Family Applications (1)

Application Number Title Priority Date Filing Date
US780734A Expired - Lifetime US2554780A (en) 1947-10-18 1947-10-18 Blade protector device

Country Status (1)

Country Link
US (1) US2554780A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168923A (en) * 1962-05-18 1965-02-09 Moraindustri Ab Device in ice drills
EP0066435A1 (en) * 1981-06-01 1982-12-08 Dresser Industries,Inc. Drill bit having abradable cutter protection
US5887668A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc. Wellbore milling-- drilling
US5887655A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc Wellbore milling and drilling
US6155349A (en) * 1996-05-02 2000-12-05 Weatherford/Lamb, Inc. Flexible wellbore mill

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US326661A (en) * 1885-09-22 Expanding drill-bit for artesian-well boring
US1038896A (en) * 1911-05-23 1912-09-17 Rowland W Jolly Cutting device.
US1109044A (en) * 1913-04-30 1914-09-01 Hannibal J A Conti Guard for edged tools.
US1528369A (en) * 1923-12-06 1925-03-03 Frank L Fuller Knife guard
US1652283A (en) * 1927-04-04 1927-12-13 Jay H Lewis Protector for bit points
US1830074A (en) * 1928-07-17 1931-11-03 Robichaux Sosthene Fish tail bit
US1830133A (en) * 1930-02-24 1931-11-03 Rohde Erwin Peeler attachment for knives
US1882268A (en) * 1928-03-30 1932-10-11 Boyd K Appleman Drill bit
US1945160A (en) * 1933-02-13 1934-01-30 William L Pearce Drill
US2053707A (en) * 1934-08-22 1936-09-08 Gordon C Farmer Tool guard

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US326661A (en) * 1885-09-22 Expanding drill-bit for artesian-well boring
US1038896A (en) * 1911-05-23 1912-09-17 Rowland W Jolly Cutting device.
US1109044A (en) * 1913-04-30 1914-09-01 Hannibal J A Conti Guard for edged tools.
US1528369A (en) * 1923-12-06 1925-03-03 Frank L Fuller Knife guard
US1652283A (en) * 1927-04-04 1927-12-13 Jay H Lewis Protector for bit points
US1882268A (en) * 1928-03-30 1932-10-11 Boyd K Appleman Drill bit
US1830074A (en) * 1928-07-17 1931-11-03 Robichaux Sosthene Fish tail bit
US1830133A (en) * 1930-02-24 1931-11-03 Rohde Erwin Peeler attachment for knives
US1945160A (en) * 1933-02-13 1934-01-30 William L Pearce Drill
US2053707A (en) * 1934-08-22 1936-09-08 Gordon C Farmer Tool guard

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168923A (en) * 1962-05-18 1965-02-09 Moraindustri Ab Device in ice drills
EP0066435A1 (en) * 1981-06-01 1982-12-08 Dresser Industries,Inc. Drill bit having abradable cutter protection
US5887668A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc. Wellbore milling-- drilling
US5887655A (en) * 1993-09-10 1999-03-30 Weatherford/Lamb, Inc Wellbore milling and drilling
US6155349A (en) * 1996-05-02 2000-12-05 Weatherford/Lamb, Inc. Flexible wellbore mill

Similar Documents

Publication Publication Date Title
GB2319547B (en) Drilling tool with blades with secondary cutting edges and drillings removal tunnels for drillings generated by the cutting edges
DE69333029D1 (en) DRILLING CHISEL WITH PDC CUTTING INSERT WITH THE CUTTING EDGE OPPOSITE SPARIOUS END
DE3677805D1 (en) CUTTING INSERT FOR ROTARY DRILL CHISELS.
DE59504791D1 (en) Form-locked insert
MX151243A (en) IMPROVEMENTS IN ROTATING DRILL FOR DRILLING WELLS
MX151051A (en) IMPROVED SET FOR MOUNTING A CUTTING DRILL ON A DRIVEN MECHANISM
BR7905879A (en) ROTARY CUTTING TOOL AND CRUDE PIECE FOR THE SAME
NZ185702A (en) Rotary drill bit cutting insert splay
ZA794482B (en) Means for removably affixing a cutter bit mounting lug to a base member on the driven element of a mining machine or the like
US2178388A (en) Binder canvas slat protector
AU533362B2 (en) Down the hole percussive tool
US2554780A (en) Blade protector device
ES495478A0 (en) IMPROVEMENT IN A DRILL FOR ROCK DRILLING.
BE874016A (en) BLADE STABILIZER CONTAINING AT LEAST ONE VENTURI-EFFECT SPACE AND USABLE IN PARTICULAR COMBINATION WITH A DRILLING TOOL
GB2184078B (en) Helicopter main rotor blade having a short span slot near the tip end
NO855111L (en) CUTTING ELEMENT FOR ROTATING DRILL.
BE877150A (en) FRAGMENTATION MACHINE WITH AT LEAST ONE ROTATING FRAGMENTATION TOOL
SE7603748L (en) SEAL AND TOOLS THEREFORE
ES554981A0 (en) A PROCEDURE FOR REACTIONING AN AROMATIC AMINE WITH AN OLEPHINE OR AN OLEPHINE PRECURSOR
FR2339501A1 (en) Wall tapestry hanging equipment - comprises two profiled devices snapping together and gripping tapestry between them
US2918954A (en) Drill
IT8322243A0 (en) TOOL FOR WORKING THE SOIL EQUIPPED WITH A SETTING ROLLER WITH SCRAPERS WITH MULTIPLE INSERTABLE CUTTERS.
ATE60975T1 (en) DEVICE FOR ATTACHING CENTERING BAR.
US3005479A (en) Adzing apparatus cutter for railroad crossties
JPS58452Y2 (en) vegetable cutter