GB426470A - Improvements in and relating to drills - Google Patents

Improvements in and relating to drills

Info

Publication number
GB426470A
GB426470A GB26612/34A GB2661234A GB426470A GB 426470 A GB426470 A GB 426470A GB 26612/34 A GB26612/34 A GB 26612/34A GB 2661234 A GB2661234 A GB 2661234A GB 426470 A GB426470 A GB 426470A
Authority
GB
United Kingdom
Prior art keywords
drills
steel
relating
holes
projections
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
GB26612/34A
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
Priority to US706455A priority Critical patent/US1974540A/en
Application filed by Individual filed Critical Individual
Priority to GB26612/34A priority patent/GB426470A/en
Priority to FR45541D priority patent/FR45541E/en
Publication of GB426470A publication Critical patent/GB426470A/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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

Abstract

426,470. Percussive drills. NORLEY, H. C., 551, Reid Street, Peterborough, Ontario, Canada. Sept. 17, 1934, No. 26612. Addition to 392,788. [Class 124] The steel 1 is formed with two opposing projections 3, 4, which enter holes 8, 9 in the detachable cutter 5. The holes are wider than the projections, thus permitting endwise movement to allow the tapering steel to jam in the recess 7.
GB26612/34A 1934-01-13 1934-09-17 Improvements in and relating to drills Expired GB426470A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US706455A US1974540A (en) 1934-01-13 1934-01-13 Drill
GB26612/34A GB426470A (en) 1934-01-13 1934-09-17 Improvements in and relating to drills
FR45541D FR45541E (en) 1934-01-13 1934-09-19 Removable bit drill

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US706455A US1974540A (en) 1934-01-13 1934-01-13 Drill
GB26612/34A GB426470A (en) 1934-01-13 1934-09-17 Improvements in and relating to drills
FR45541T 1934-09-19

Publications (1)

Publication Number Publication Date
GB426470A true GB426470A (en) 1935-04-03

Family

ID=8681271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26612/34A Expired GB426470A (en) 1934-01-13 1934-09-17 Improvements in and relating to drills

Country Status (3)

Country Link
US (1) US1974540A (en)
FR (1) FR45541E (en)
GB (1) GB426470A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848478A (en) * 1973-09-12 1974-11-19 Gen Motors Corp Shift lever bowl assembly
DE102007016822B4 (en) * 2007-04-05 2009-01-15 Tracto-Technik Gmbh & Co. Kg Linkage coupling with pin

Also Published As

Publication number Publication date
US1974540A (en) 1934-09-25
FR45541E (en) 1935-09-12

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