GB410947A - Improvements in rock drills - Google Patents

Improvements in rock drills

Info

Publication number
GB410947A
GB410947A GB7995/33A GB799533A GB410947A GB 410947 A GB410947 A GB 410947A GB 7995/33 A GB7995/33 A GB 7995/33A GB 799533 A GB799533 A GB 799533A GB 410947 A GB410947 A GB 410947A
Authority
GB
United Kingdom
Prior art keywords
steel
rock drills
erickson
ontario
canada
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
GB7995/33A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB410947A publication Critical patent/GB410947A/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
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Abstract

410,947. Percussive drills. ERICKSON, C., Kirkland Lake, Ontario, Canada. March 16, 1933, No. 7995. Convention date, July 28, 1932. [Class 124.] A replaceable tip 15 of a drill steel is held in a dovetail slot formed in the end of the shank. Recesses 17, 18 at the base of the slot allow clearing water to pass from the central bore of the steel to clear the bore hole.
GB7995/33A 1932-07-28 1933-03-16 Improvements in rock drills Expired GB410947A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US410947XA 1932-07-28 1932-07-28

Publications (1)

Publication Number Publication Date
GB410947A true GB410947A (en) 1934-05-31

Family

ID=21914703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7995/33A Expired GB410947A (en) 1932-07-28 1933-03-16 Improvements in rock drills

Country Status (1)

Country Link
GB (1) GB410947A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614811A (en) * 1949-01-10 1952-10-21 H E Fletcher Company Drill
DE1002264B (en) * 1952-09-29 1957-02-14 Josef Dionisotti Rock drill bit with detachably inserted cutting tools
US4520881A (en) * 1982-09-24 1985-06-04 Cornelius Phaal Tool component
US6250404B1 (en) 1999-06-08 2001-06-26 The Charles Machine Works, Inc. Directional boring head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614811A (en) * 1949-01-10 1952-10-21 H E Fletcher Company Drill
DE1002264B (en) * 1952-09-29 1957-02-14 Josef Dionisotti Rock drill bit with detachably inserted cutting tools
US4520881A (en) * 1982-09-24 1985-06-04 Cornelius Phaal Tool component
US6250404B1 (en) 1999-06-08 2001-06-26 The Charles Machine Works, Inc. Directional boring head

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