GB640862A - An improved drilling device - Google Patents

An improved drilling device

Info

Publication number
GB640862A
GB640862A GB2425848A GB2425848A GB640862A GB 640862 A GB640862 A GB 640862A GB 2425848 A GB2425848 A GB 2425848A GB 2425848 A GB2425848 A GB 2425848A GB 640862 A GB640862 A GB 640862A
Authority
GB
United Kingdom
Prior art keywords
drill
bearing
suitably
holder
drilling device
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
GB2425848A
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
Priority to GB2425848A priority Critical patent/GB640862A/en
Publication of GB640862A publication Critical patent/GB640862A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B49/00—Measuring or gauging equipment on boring machines for positioning or guiding the drill; Devices for indicating failure of drills during boring; Centering devices for holes to be bored

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

640,862. Jigs. FLORY, T. W. Sept. 15, 1948, No. 24258. Addition to 615,918. [Class 83 (iii)] The drilling device described in the parent Specification is modified by the provision of a roller or other suitable bearing 15 for the centring device 16, a thrust bearing 21 for the spring 19, and a simplified means for holding the drill. The device comprises a tubular body 11 screw-threaded at one end to receive the drill-holder 13 and fitted at the other with the bearing 15 wherein the centring device 16 is free to slide and rotate. The drill is loosely held in its holder by a cross-pin 24 so that it may centre itself in the device 16. The free end of the device 16 may be formed with a conical, V or other suitably-shaped recess according to the work to be drilled, or a number of suitably-shaped heads adapted for selective threaded engagement with the device may be provided.
GB2425848A 1948-09-15 1948-09-15 An improved drilling device Expired GB640862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2425848A GB640862A (en) 1948-09-15 1948-09-15 An improved drilling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2425848A GB640862A (en) 1948-09-15 1948-09-15 An improved drilling device

Publications (1)

Publication Number Publication Date
GB640862A true GB640862A (en) 1950-08-02

Family

ID=10208900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2425848A Expired GB640862A (en) 1948-09-15 1948-09-15 An improved drilling device

Country Status (1)

Country Link
GB (1) GB640862A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792726A (en) * 1953-05-04 1957-05-21 Selmer E Vick Self-centering bit
US5228811A (en) * 1992-02-19 1993-07-20 General Dynamics Corporation, Convair Division Tool to assist in the removal of rivets
CN108356589A (en) * 2018-04-19 2018-08-03 郑州宇恒环保技术有限公司 Steel tube surface sizing drilling tool holder
CN110586982A (en) * 2019-10-16 2019-12-20 章晋华 Building drilling machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2792726A (en) * 1953-05-04 1957-05-21 Selmer E Vick Self-centering bit
US5228811A (en) * 1992-02-19 1993-07-20 General Dynamics Corporation, Convair Division Tool to assist in the removal of rivets
CN108356589A (en) * 2018-04-19 2018-08-03 郑州宇恒环保技术有限公司 Steel tube surface sizing drilling tool holder
CN110586982A (en) * 2019-10-16 2019-12-20 章晋华 Building drilling machine
CN110586982B (en) * 2019-10-16 2020-12-15 嘉兴市华染新能源有限公司 Building drilling machine

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