US1953095A - Detachable bit - Google Patents
Detachable bit Download PDFInfo
- Publication number
- US1953095A US1953095A US551685A US55168531A US1953095A US 1953095 A US1953095 A US 1953095A US 551685 A US551685 A US 551685A US 55168531 A US55168531 A US 55168531A US 1953095 A US1953095 A US 1953095A
- Authority
- US
- United States
- Prior art keywords
- threads
- thread
- bit
- construction
- detachable bit
- 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 - Lifetime
Links
- 238000010276 construction Methods 0.000 description 16
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000035939 shock Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B17/042—Threaded
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/924—Coupled nut and bolt
- Y10S411/929—Thread lock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/57—Distinct end coupler
- Y10T403/5746—Continuous thread
Definitions
- My invention relates to detachable bit constructions and has for its principal objects a screw thread arrangement therefor which will not bind and which is capable of withstanding the heavy 6 shocks resulting from drilling operations.
- Great diificulty has been experienced in finding thread constructions suitable for such use, most threads soon becoming jammed so as to prevent disassembly of the parts, or breaking off under the heavy shocks and stresses.
- the thread constructions of the present invention satisfactorily meet the requirements.
- the invention consists in providing the rear faces of at least one thread member with. a substantially straight profile. It further consists in the detachable bit construction and in the parts and combinations and arrangevnients of parts hereinafter described and claimed.
- Fig. 1 is an elevation, partly in longitudinal section, of a detachable bit construction whose threaded connections embody my invention.
- Fig. 2 is a view similar to Fig. 1 of the parts in detached position, the metal coupling member only being shown in longitudinal section;
- FIGS. 3, 4, 5 and 6 are detail sectional views of several modifications of screw threads embodying my invention. 1
- the drawing illustrates my invention as embodied in a detachable bit construction including a drill'rod 1 having a tapering threaded end portion 2., a bit member 3 having a tapering threaded shank 4 and a hollow coupling member 5 having tapering threaded-bores to cooperate with said shank 4 and with said drill rod 1.
- the front faces 6 of all of the threads are rather short and are disposed substantially flatwise to the end thrust to which they are subjected.
- the rear faces of all of the threads (indicated generally by the letter A) are comparatively long, making a comparatively small angle with the axis of the drill rod; and the rear face of at least one thread is convexly curved endwise.
- the rear face 8 of the thread of the inner member (drill rod 1 or bit shank 4) is convexly curved endwise so to have a convex section or profile.
- the rear face 9 of the thread of the coupling member 5 is substantially straight in profll
- the rear face 19 of the thread of the coupling member 5 is convexly curved, the rear face 18 of the thread ofthe inner member being substantially straight.
- the rear A space 7 is left at the crest of each faces 28 and 29 of both sets of threads are convexly curved but are provided with straight zones 25 at their middle portions.
- a detachable bit construction comprising an internally threaded coupling member and externally threaded drill rod and bit shank, the front faces of all of said threads being comparatively short and disposed substantially flatwise with respect to end thrust and the rear faces of said threads being rather long, the rear face of one of each contacting pair of said threads being convexly curved endwise.
- a detachable bit construction comprising an internally threaded coupling member and externally threaded drill rod and bit shank, the front faces of all of said threads being comparatively short and disposed substantially fiatwise with respect to end thrust and the rear faces of said thread being rather long, the rear faces of the threads of 'said coupling member being substantially straight in profile and the cooperating rear faces of the threads of said drill rod and of said bit shank being convexly curved in profile.
- a detachable bit construction comprising an internally threaded member and an externally threaded member, the front faces of said threads being comparatively short and disposed substan tially flatwise with respect to end thrust and the rear faces of said threads being rather long, the rear face of one of each contacting pair of said threads being convexly curved endwise.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Description
April 3, 1934. B E KER 1,953,095
Application July is, 1931, Serial No. 551,685
' 3 Claims. (01. 255-64) My invention relates to detachable bit constructions and has for its principal objects a screw thread arrangement therefor which will not bind and which is capable of withstanding the heavy 6 shocks resulting from drilling operations. Great diificulty has been experienced in finding thread constructions suitable for such use, most threads soon becoming jammed so as to prevent disassembly of the parts, or breaking off under the heavy shocks and stresses. The thread constructions of the present invention satisfactorily meet the requirements. The invention consists in providing the rear faces of at least one thread member with. a substantially straight profile. It further consists in the detachable bit construction and in the parts and combinations and arrangevnients of parts hereinafter described and claimed.
In the accompanying drawing,
, Fig. 1 is an elevation, partly in longitudinal section, of a detachable bit construction whose threaded connections embody my invention.
Fig. 2 is a view similar to Fig. 1 of the parts in detached position, the metal coupling member only being shown in longitudinal section; and
Figs. 3, 4, 5 and 6 are detail sectional views of several modifications of screw threads embodying my invention. 1
The drawing illustrates my invention as embodied in a detachable bit construction including a drill'rod 1 having a tapering threaded end portion 2., a bit member 3 having a tapering threaded shank 4 and a hollow coupling member 5 having tapering threaded-bores to cooperate with said shank 4 and with said drill rod 1. According to my invention, the front faces 6 of all of the threads are rather short and are disposed substantially flatwise to the end thrust to which they are subjected. The rear faces of all of the threads (indicated generally by the letter A) are comparatively long, making a comparatively small angle with the axis of the drill rod; and the rear face of at least one thread is convexly curved endwise.
' thread. In the construction shown in Fig. 3, the rear face 8 of the thread of the inner member (drill rod 1 or bit shank 4) is convexly curved endwise so to have a convex section or profile. The rear face 9 of the thread of the coupling member 5 is substantially straight in profll In the construction shown in Fig. 4, the rear face 19 of the thread of the coupling member 5 is convexly curved, the rear face 18 of the thread ofthe inner member being substantially straight. In the construction shown in Fig. 5, the rear A space 7 is left at the crest of each faces 28 and 29 of both sets of threads are convexly curved but are provided with straight zones 25 at their middle portions.
In the construction shown in Fig. 6, the rear faces 38 and 39 of both inner and outer members are convexly curved.
The convex curvature of one thread cooperating with the construction of the other thread whereby there is limited contact between the two threads makes the threads cooperate together easily and prevents jamming of the threads. Heavy shock and wear may flatten said curves; but extraordinarily long service is required to cause sufiicient flattening of the curves to permit the threads to bind. Previous curved thread constructions have included mating, closely fitting continuous curves on both thread members; and the important advantages of the present construction depend upon the absence of such mating thread surfaces.'
What I claim is:
1. A detachable bit construction comprising an internally threaded coupling member and externally threaded drill rod and bit shank, the front faces of all of said threads being comparatively short and disposed substantially flatwise with respect to end thrust and the rear faces of said threads being rather long, the rear face of one of each contacting pair of said threads being convexly curved endwise.
2. A detachable bit construction comprising an internally threaded coupling member and externally threaded drill rod and bit shank, the front faces of all of said threads being comparatively short and disposed substantially fiatwise with respect to end thrust and the rear faces of said thread being rather long, the rear faces of the threads of 'said coupling member being substantially straight in profile and the cooperating rear faces of the threads of said drill rod and of said bit shank being convexly curved in profile.
3. A detachable bit construction comprising an internally threaded member and an externally threaded member, the front faces of said threads being comparatively short and disposed substan tially flatwise with respect to end thrust and the rear faces of said threads being rather long, the rear face of one of each contacting pair of said threads being convexly curved endwise.
' JOHN B. BAKER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US551685A US1953095A (en) | 1931-07-18 | 1931-07-18 | Detachable bit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US551685A US1953095A (en) | 1931-07-18 | 1931-07-18 | Detachable bit |
Publications (1)
Publication Number | Publication Date |
---|---|
US1953095A true US1953095A (en) | 1934-04-03 |
Family
ID=24202273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US551685A Expired - Lifetime US1953095A (en) | 1931-07-18 | 1931-07-18 | Detachable bit |
Country Status (1)
Country | Link |
---|---|
US (1) | US1953095A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577895A (en) * | 1948-01-15 | 1951-12-11 | Robert L Jones | Drilling apparatus and method of cleaning plugged drill steel |
FR2083272A5 (en) * | 1970-05-04 | 1971-12-10 | Sandvikens Jernverks Ab | |
US4063837A (en) * | 1974-09-30 | 1977-12-20 | Ingersoll-Rand Company | Preselected releasable threaded coupling member |
US4304428A (en) * | 1976-05-03 | 1981-12-08 | Grigorian Samvel S | Tapered screw joint and device for emergency recovery of boring tool from borehole with the use of said joint |
US4540321A (en) * | 1978-11-16 | 1985-09-10 | Microdot Inc. | Anti-vibration thread form |
US4861209A (en) * | 1986-07-15 | 1989-08-29 | Sandvik Ab | Threaded coupling |
US5163513A (en) * | 1991-06-28 | 1992-11-17 | Bowen Tools, Inc. | Circle threadform for marine riser top joint |
US20070147973A1 (en) * | 2005-12-22 | 2007-06-28 | Cyril Laan | Dual threaded screw for composite materials |
US20080181746A1 (en) * | 2005-07-21 | 2008-07-31 | Pama Reiter Stefan | Fastener for anchoring in solid bases |
US20100172717A1 (en) * | 2009-01-06 | 2010-07-08 | Corbett Robert J | Advanced nut and bolt |
US20110008130A1 (en) * | 2009-07-11 | 2011-01-13 | Dale Van Cor | Concentric threaded fastener and fastener system |
US20120053636A1 (en) * | 2010-08-30 | 2012-03-01 | Zimmer Gmbh | Vertebral stabilization transition connector |
US20130236264A1 (en) * | 2010-11-30 | 2013-09-12 | Shingo Torii | Locking screw |
US20140086698A1 (en) * | 2012-09-25 | 2014-03-27 | Thomas E. Sisson | Drilling Tool |
US9803679B1 (en) | 2016-09-14 | 2017-10-31 | Martin Eidinger | Deformable fastening thread providing wedge-effect |
US10508677B2 (en) * | 2015-11-24 | 2019-12-17 | Yihua You | Tapered thread connection pair |
US10514055B2 (en) * | 2015-11-24 | 2019-12-24 | Yihua You | Tapered threaded bolt body and tapered threaded nut |
US10527081B2 (en) * | 2015-11-24 | 2020-01-07 | Yihua You | Tapered internal thread and threaded column connecting structure |
US10527082B2 (en) * | 2015-11-24 | 2020-01-07 | Yihua You | Connection structure for tapered male screw and threaded hole |
US10655669B2 (en) | 2013-11-26 | 2020-05-19 | Arconic Inc. | Advanced nut and bolt |
US11499585B2 (en) * | 2018-08-09 | 2022-11-15 | Sentient Design, Inc. | Fastener |
US11519452B2 (en) | 2013-11-26 | 2022-12-06 | Howmet Aerospace Inc. | Advanced nut and bolt |
-
1931
- 1931-07-18 US US551685A patent/US1953095A/en not_active Expired - Lifetime
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2577895A (en) * | 1948-01-15 | 1951-12-11 | Robert L Jones | Drilling apparatus and method of cleaning plugged drill steel |
FR2083272A5 (en) * | 1970-05-04 | 1971-12-10 | Sandvikens Jernverks Ab | |
US4063837A (en) * | 1974-09-30 | 1977-12-20 | Ingersoll-Rand Company | Preselected releasable threaded coupling member |
US4304428A (en) * | 1976-05-03 | 1981-12-08 | Grigorian Samvel S | Tapered screw joint and device for emergency recovery of boring tool from borehole with the use of said joint |
US4540321A (en) * | 1978-11-16 | 1985-09-10 | Microdot Inc. | Anti-vibration thread form |
US4861209A (en) * | 1986-07-15 | 1989-08-29 | Sandvik Ab | Threaded coupling |
US5163513A (en) * | 1991-06-28 | 1992-11-17 | Bowen Tools, Inc. | Circle threadform for marine riser top joint |
US20080181746A1 (en) * | 2005-07-21 | 2008-07-31 | Pama Reiter Stefan | Fastener for anchoring in solid bases |
US20070147973A1 (en) * | 2005-12-22 | 2007-06-28 | Cyril Laan | Dual threaded screw for composite materials |
US7255523B2 (en) | 2005-12-22 | 2007-08-14 | Prime Source Building Products, Inc. | Dual threaded screw for composite materials |
US8465240B2 (en) * | 2009-01-06 | 2013-06-18 | Alcoa Inc. | Advanced nut and bolt |
US20100172717A1 (en) * | 2009-01-06 | 2010-07-08 | Corbett Robert J | Advanced nut and bolt |
US20110008130A1 (en) * | 2009-07-11 | 2011-01-13 | Dale Van Cor | Concentric threaded fastener and fastener system |
US9080591B2 (en) * | 2009-07-11 | 2015-07-14 | Dale Van Cor | Concentric threaded fastener and fastener system |
US20120053636A1 (en) * | 2010-08-30 | 2012-03-01 | Zimmer Gmbh | Vertebral stabilization transition connector |
US8382803B2 (en) * | 2010-08-30 | 2013-02-26 | Zimmer Gmbh | Vertebral stabilization transition connector |
US20130236264A1 (en) * | 2010-11-30 | 2013-09-12 | Shingo Torii | Locking screw |
US9388845B2 (en) * | 2010-11-30 | 2016-07-12 | Nitto Seiko Co., Ltd. | Locking screw |
US20140086698A1 (en) * | 2012-09-25 | 2014-03-27 | Thomas E. Sisson | Drilling Tool |
US11519452B2 (en) | 2013-11-26 | 2022-12-06 | Howmet Aerospace Inc. | Advanced nut and bolt |
US10655669B2 (en) | 2013-11-26 | 2020-05-19 | Arconic Inc. | Advanced nut and bolt |
US10527081B2 (en) * | 2015-11-24 | 2020-01-07 | Yihua You | Tapered internal thread and threaded column connecting structure |
US10514055B2 (en) * | 2015-11-24 | 2019-12-24 | Yihua You | Tapered threaded bolt body and tapered threaded nut |
US10508677B2 (en) * | 2015-11-24 | 2019-12-17 | Yihua You | Tapered thread connection pair |
US10527082B2 (en) * | 2015-11-24 | 2020-01-07 | Yihua You | Connection structure for tapered male screw and threaded hole |
US10233963B2 (en) | 2016-09-14 | 2019-03-19 | Martin Eidinger | Deformable fastening thread providing wedge-effect |
US9803679B1 (en) | 2016-09-14 | 2017-10-31 | Martin Eidinger | Deformable fastening thread providing wedge-effect |
US11499585B2 (en) * | 2018-08-09 | 2022-11-15 | Sentient Design, Inc. | Fastener |
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