GB190820611A - A New or Improved Drilling Tool - Google Patents

A New or Improved Drilling Tool

Info

Publication number
GB190820611A
GB190820611A GB190820611DA GB190820611A GB 190820611 A GB190820611 A GB 190820611A GB 190820611D A GB190820611D A GB 190820611DA GB 190820611 A GB190820611 A GB 190820611A
Authority
GB
United Kingdom
Prior art keywords
new
drilling tool
boring
drill
drilling
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
Inventor
Julius Erlebacher
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
Application granted granted Critical
Publication of GB190820611A publication Critical patent/GB190820611A/en
Expired legal-status Critical Current

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  • Drilling And Boring (AREA)

Abstract

20,611. Erlebacher, J. Sept. 30. Boring and drilling. - Curved holes are bored in metal, wood, leather, or the like by means of a drill or boring-bit mounted on a curved guide-tube. The drill is driven by a flexible shaft, operated by hand or otherwise. Fig. 3 shows one arrangement in which the guide-tube consists of two quadrants connected at 15. The tubes are slotted to permit the passage of the shaft 14, or may be a framework merely. The front quadrant may be arranged to slide in the rear one ; it is then pushed out during the drilling of the first part of the hole.
GB190820611D 1908-09-30 1908-09-30 A New or Improved Drilling Tool Expired GB190820611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190820611T 1908-09-30

Publications (1)

Publication Number Publication Date
GB190820611A true GB190820611A (en) 1909-04-29

Family

ID=32636770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190820611D Expired GB190820611A (en) 1908-09-30 1908-09-30 A New or Improved Drilling Tool

Country Status (1)

Country Link
GB (1) GB190820611A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565794A (en) * 1945-10-02 1951-08-28 Signal Oil & Gas Co Directional drilling of deviated boreholes
US4240512A (en) * 1978-03-06 1980-12-23 Haglund Mats T Arrangement for guiding a bore-crown or bit along a given path
US4265231A (en) * 1979-04-30 1981-05-05 Scheller Jr Arnold D Curved drill attachment for bone drilling uses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2565794A (en) * 1945-10-02 1951-08-28 Signal Oil & Gas Co Directional drilling of deviated boreholes
US4240512A (en) * 1978-03-06 1980-12-23 Haglund Mats T Arrangement for guiding a bore-crown or bit along a given path
US4265231A (en) * 1979-04-30 1981-05-05 Scheller Jr Arnold D Curved drill attachment for bone drilling uses

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