GB332914A - Improvements in or relating to drill steels - Google Patents

Improvements in or relating to drill steels

Info

Publication number
GB332914A
GB332914A GB1142229A GB1142229A GB332914A GB 332914 A GB332914 A GB 332914A GB 1142229 A GB1142229 A GB 1142229A GB 1142229 A GB1142229 A GB 1142229A GB 332914 A GB332914 A GB 332914A
Authority
GB
United Kingdom
Prior art keywords
collar
shank
relating
drill steels
sheath
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
Application number
GB1142229A
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.)
Johannesburg Consolidated Investment Co Ltd
Original Assignee
Johannesburg Consolidated Investment Co Ltd
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 Johannesburg Consolidated Investment Co Ltd filed Critical Johannesburg Consolidated Investment Co Ltd
Priority to GB1142229A priority Critical patent/GB332914A/en
Publication of GB332914A publication Critical patent/GB332914A/en
Expired legal-status Critical Current

Links

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1042—Elastomer protector or centering means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/84—Steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/33—Elastomers, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/02—Features of shanks of tools not relating to the operation performed by the tool
    • B23B2231/0216—Overall cross sectional shape of the shank
    • B23B2231/0232—Hexagonal

Abstract

332,914. Holman Bros., Ltd., (Johannesburg Consolidated Investment Co., Ltd.). April 12, 1929. Percussive tools.-The collar on the drill shank is made wholly or mainly of flexible or resilient material, such as rubber 11, held by a metal sheath 12, or vulcanized to the shank. The sheath may be replaced by a band, and the collar may be tapered. In a modification, the collar bears against a shoulder on the shank.
GB1142229A 1929-04-12 1929-04-12 Improvements in or relating to drill steels Expired GB332914A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1142229A GB332914A (en) 1929-04-12 1929-04-12 Improvements in or relating to drill steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1142229A GB332914A (en) 1929-04-12 1929-04-12 Improvements in or relating to drill steels

Publications (1)

Publication Number Publication Date
GB332914A true GB332914A (en) 1930-07-14

Family

ID=9985926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1142229A Expired GB332914A (en) 1929-04-12 1929-04-12 Improvements in or relating to drill steels

Country Status (1)

Country Link
GB (1) GB332914A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640735A (en) * 1947-02-17 1953-06-02 Hughes Tool Co Stabilizer for drill collars and drill pipe
US2685274A (en) * 1951-04-12 1954-08-03 Phyllis E Liddicoat Pneumatic tool
US2706495A (en) * 1950-11-18 1955-04-19 Dresser Ind Spacing device for concentric tubular units
US2830792A (en) * 1954-10-13 1958-04-15 Ingersoll Rand Co Collar for drill steels
US2886291A (en) * 1955-12-05 1959-05-12 Raymond A Frisby Self-measuring carbide drills
US2889811A (en) * 1956-08-10 1959-06-09 Electro Chimie Metal Percussion tools
US2997024A (en) * 1960-01-13 1961-08-22 Lord Mfg Co Rock drill collar
DE1299577B (en) * 1966-11-16 1969-07-17 Hausherr & Soehne Rudolf Device for reducing noise on impacting tools
US3507525A (en) * 1966-12-22 1970-04-21 Donald E Sable Means for securing two members to one another
US3662855A (en) * 1970-05-04 1972-05-16 Robert D Adams Muffled tool for vibratory or impact machines
US3783970A (en) * 1972-06-07 1974-01-08 Thor Power Tool Co Sound attenuating device for a work steel or the like
US3856107A (en) * 1970-01-21 1974-12-24 Adams R Tools for use in percussive machines
DE2920139A1 (en) * 1979-05-18 1980-11-20 Ruhrkohle Ag Impact drill bit for underground mining - has additional weights arranged as collars surrounding bits

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640735A (en) * 1947-02-17 1953-06-02 Hughes Tool Co Stabilizer for drill collars and drill pipe
US2706495A (en) * 1950-11-18 1955-04-19 Dresser Ind Spacing device for concentric tubular units
US2685274A (en) * 1951-04-12 1954-08-03 Phyllis E Liddicoat Pneumatic tool
US2830792A (en) * 1954-10-13 1958-04-15 Ingersoll Rand Co Collar for drill steels
US2886291A (en) * 1955-12-05 1959-05-12 Raymond A Frisby Self-measuring carbide drills
US2889811A (en) * 1956-08-10 1959-06-09 Electro Chimie Metal Percussion tools
US2997024A (en) * 1960-01-13 1961-08-22 Lord Mfg Co Rock drill collar
DE1299577B (en) * 1966-11-16 1969-07-17 Hausherr & Soehne Rudolf Device for reducing noise on impacting tools
US3507525A (en) * 1966-12-22 1970-04-21 Donald E Sable Means for securing two members to one another
US3856107A (en) * 1970-01-21 1974-12-24 Adams R Tools for use in percussive machines
US3662855A (en) * 1970-05-04 1972-05-16 Robert D Adams Muffled tool for vibratory or impact machines
US3783970A (en) * 1972-06-07 1974-01-08 Thor Power Tool Co Sound attenuating device for a work steel or the like
DE2920139A1 (en) * 1979-05-18 1980-11-20 Ruhrkohle Ag Impact drill bit for underground mining - has additional weights arranged as collars surrounding bits

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