US3231032A - Apparatus for drilling in earth covered rock - Google Patents

Apparatus for drilling in earth covered rock Download PDF

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Publication number
US3231032A
US3231032A US23120A US2312060A US3231032A US 3231032 A US3231032 A US 3231032A US 23120 A US23120 A US 23120A US 2312060 A US2312060 A US 2312060A US 3231032 A US3231032 A US 3231032A
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United States
Prior art keywords
drill
adapter
tube
drill rod
rotary
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Expired - Lifetime
Application number
US23120A
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English (en)
Inventor
Genberg Bengt Rune
Hjalsten John Anders
Lindgren Carl Olov
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.)
Santrade Ltd
Atlas Copco AB
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Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Priority to US23120A priority Critical patent/US3231032A/en
Priority to GB11308/61A priority patent/GB946697A/en
Priority to BE602124A priority patent/BE602124A/fr
Priority to DK137861AA priority patent/DK109251C/da
Priority to FI0632/61A priority patent/FI41523B/fi
Application granted granted Critical
Publication of US3231032A publication Critical patent/US3231032A/en
Assigned to SANTRADE LTD., A CORP. OF SWITZERLAND reassignment SANTRADE LTD., A CORP. OF SWITZERLAND ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SANDVIK AKTIEBOLAG, A CORP. OF SWEDEN
Anticipated expiration legal-status Critical
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    • 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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Definitions

  • This invention relates to apparatus for drilling in earth covered rock. For various purposes it desirableto be able to drill rock without first removing the soilcap which often covers the rock.
  • the apparatus according to the present invention may be used in connection with building of water ways, harbors, water power plant d ains and canals, geological investigations, stabilizing of ground and injection of cement or other material in the ground, in rock or in darn structures, piling for building structures, and for other work.
  • Diamond drills and percussion drills of various types have been suggested for work of the above type but have proved expensive or slow in operation.
  • One object of the invention is to provide an apparatus for the above purpose which is capable v of penetrating an earth layer of very varying composition which may contain hard clay, moraine, boulders, more or less solid rock or the like.
  • the apparatus according to the invention provides a means for drilling through such an earth layer down to and into the underlying rock and for obtaining a clean hole all the way down which may be charged for blasting the rock and any large boulders or stiff earth layers covering the rock or used for other purposes, for instance for taking out samples of the ground or rock, for anchoring piles, for injection of cement or other stabilizing material or the like.
  • FIG. 1 is a side elevation of apparatus embodying the invention .partly broken away in order to make possible the illustration of the complete apparatus on one sheet of drawing.
  • FIG. 2 is a vertical section partly broken away of a completed hole through earth and a boulder and in the underlying rock.
  • FIG. 3 is a vertical longitudinal section on a larger scale of a drill forming a part of the apparatus according to FIG. 1 and
  • FIG. 4 is a longitudinal section of an adapter and of a drill rod and drill tube assembly used in connection with an apparatus of FIG. 1.
  • FIG. 5 is a detail cross section on line VV in FIG. 3
  • FIG. 6 is a cross section on line VIVI in FIG. 3.
  • FIG. 7 is a section on line VII-VII in FIG. 3
  • FIG. 8 is a section on line VIIIVIII in FIG. 4.
  • numeral 1 indicates the upper surfaceof the soilcap covering a rock formation 2 which may have any irregular contour. It is sometimes convenient before starting a drilling operation with the apparatus according to the invention to remove a suitable part of the soilcap with conventional earth removing machines and to plane the earth, if desired, with bulldozers or other suitable machines to provide a fairly even surface on which the apparatus according to the invention may be mounted in a convenient manner according to the conice ditions of the work and the depth and number of holes to be drilled. Naturally, such preparations of the ground are usually not necessary when the holes to be drilled are far apart, or when it is not desired to remove the soil as, for instance, in connection 'with investigation drilling and various types of injection drilling.
  • the illustrated apparatus is an example of an apparatus 'used for drilling in connection with the building of a canal.
  • the upper part 3 of the soilcap may consist of comparatively soft ground and the deeper portions 4 may consist of hard clay or moraine which may contain large boulders as indicated at 5 FIG. 2. It also often occurs that the rock cove-red by the earth is of a very poor quality so that it is necessary to drill down through loose rock a considerable distance before the solid rock is encountered.
  • the illustrated apparatus consists of a number of steel channels 6 provide on the ground parallel to each other and forming a track on which a frame '7 of suitable steel channels is movable on wheels 8.
  • the transverse members of the frame 7 form a track for a frame 9 which is movable on wheels 10 on the frame ,7 perpendicular to the direction in which the frame 7 is movable on the channel 6.
  • the frame 9 carries a drill post comprising a drill guide and feed structure which is generally indicated by it and which may consist of 2 parallel steel channels 12 welded together with longitudinal steel members 13 by means of transverse stiifeners or webs 14 to form the rigid drill post, the length of which may, for instance, substantially be the same as the desired depth of the holes to be drilled.
  • the drill post 11 is pivotally supported in a suitable way as at 15 on the frame and two steel struts of suitable frame work 16 are provided for supporting the drill post 11 about halfway from the frame 9 to the top.
  • the struts 16 may preferably be hingedly connected to a bracket 17 on the a drill post by bolts 18 and to two brackets 1d clamped to the opposite side members of the frame 9 by suitable screw clamps 20, the brackets 19 supporting the members 16 by means of bolts 21.
  • the drill post it carries a drill feed motor 22 which may consist of a reversible pneumatic motor supplied with compressed air through a hose 23 and containing a driving sprocket wheel :24 for a drill feed chain 25 which is car-- ried over the sprocket wheel 24, idlers 26 in the feed motor housing, and over large idler wheels 27 and 28 at the bottom and top of the drill post 11,
  • a drill feed motor 22 which may consist of a reversible pneumatic motor supplied with compressed air through a hose 23 and containing a driving sprocket wheel :24 for a drill feed chain 25 which is car-- ried over the sprocket wheel 24, idlers 26 in the feed motor housing, and over large idler wheels 27 and 28 at the bottom and top of the drill post 11,
  • One of said idle sprocket wheels, preferably the wheel 27 may be provided with means for tensioning the chain 25 which means are well known in the art and are therefore not illustrated.
  • the chain 25 is connected to a slide
  • the slide '29 carries a percussion drill comprising a percussion motor 31 and a reversible separate drill steel rota tion' motor 32.
  • the percussion motor is provided with compressed air through a hose 33 and with flushing water through a'hose 34- and the rotation motor is provided with compressed air for ahead and reverse rotation through two hoses 35.
  • the percussion motor 31 contains in conventional manner a cylinder 36 accommodating a hammer piston 37 the reciprocation of which is controlled by a distributing valve 38 in the back head 39 of the motor in conventional manner.
  • a conventional rifle bar 49 cooperates with a rifle nut 41 in the piston 37 to rotate the piston in order to avoid uneven wearing of the piston.
  • the cylinder 36 is clamped together with a chuck casing 42 by means of side bolts 43 and the chuck casing 42 and cylinder 36 are rigidly secured to the slide 29
  • the chuck casing contains a front bushing 44 and rear bushings 45, 46 in which an adapter 47 is mounted with cylindrical portions '48 and 49, respectively.
  • the adapter 47 is rotatable in the rear bushings 45, 46 and has an intermediate portion 58 between the cylindrical portions 48, 49 of non-circular cross section, for instance as obvious from FIG. 5, which fits into a chuck 51 rotatably mounted in the chuck casing 42.
  • the chuck 51 has a non-cylindrical bore 52 through which the intermediate portion 50 is axially slidable but non-rotatable.
  • the bushing 44 is provided with an opening 53 through which the portion 58 is axially slidable and which may .be made to register with the opening 52 by suitable turning of the bushing 44.
  • a lock nut 54 is screw threaded on the chuck 51 at 55 and the bushing 44 has projections or claws 57 cooperating with recesses 56in the chuck 51 so that upon tightening of the nut 54 the bushing 44 may be locked in a position in which the opening 53 does not register with the opening 52. The bushing 44 thereby prevents the adapter 47 from being removed from the chuck 51.
  • the portion 58 of the adapter forms a rear shoulder 58 and a front shoulder 59 cooperating with corresponding shoulders 60 on the bushing 45 and 61 on the bushing 44 and permitting axial forces to be transmitted from the feeding motor through the drill to the adapter for feeding or retraction of the drill rod assembly, respectively.
  • Flushing water is supplied through the adapter through a flushing water tube 62 extending into a flushing water passage 63 in the adapter and sealed in the adapter by a suitable packing 64 so that a high flushing water pressure may be maintained.
  • the hose 34 is connected to the flushing Water tube 62 in conventional manner.
  • the chuck For rotation of the chuck 51 and the adapter 47 the chuck carries a sprocket wheel 65 driven by a chain 66 from a driving sprocket wheel 67 provided on a shaft 68 mounted in bearings in a casing 69 which contains a reduction gear transmission 70 driven by a reversible compressed air operated motor 32.
  • the casing 69 is carried by a housing 71 forming a part of the chuck casing 42 and covered at the front end by a removable cover 72 which upon removal allows inspection and adjustment of the chain transmission 65, 66, 67.
  • the chain 66 is carried over an idle sprocket wheel 73 mounted on a shaft 74 carried by a slide 75 which by means of a nut 76 may be adjusted in order to adjust the tension of the chain 66.
  • the illustrated design makes it possible to replace the sprocket wheels 65 or 67 by other sprocket wheels in order to change the transmission ratio or the torque or speed of rotation of the chuck.
  • the drill rod assembly consists of the adapter 47 and a train of drill rods 77 provided with externally screw threaded ends with rounded screw threads and coupled together by means of coupling sleeves 78 provided with correspondingly rounded screw threads 79, said type of screw threads being commercially known under the trademark Rope Thread.
  • the adapter 47 provides a socket 80 which is provided with internal rounded screw threads as obvious from FIG. 4 to fit the end of a drill rod 77.
  • a drill bit 81 provided with hard metal inserts and with a screw threaded shank 82 is connected to the extreme drill rod 77 by a similar coupling sleeve 78 having rounded screw threads.
  • a train of drill tubes 83 is connected by means of sleeves 84 to each other and by means of a sleeve 85 to the adapter 47 and at the lower end of said train of tubes an annular drill bit 86 having a sleeve portion 87 is screw threaded on to the lower end of the extreme drill tube 83.
  • the drill tubes 83 are provided with screw threaded ends 88 with rounded screw threads of the type known under the trademark Rope Thread and the engaging sleeves 85, 84 and 87 are threaded correspondingly.
  • the sleeve 85 has a screw threaded portion 89 which may be of the same type but which is illustrated as a trapezoid screw thread engaging a corresponding screw thread on the outside of the socket 88 formed by the adapter 47.
  • the sleeve 85 has a hexagonal external grip portion 91 and the rods 77 are provided with flats 92 close to the screw threaded ends tofacilitate turning of municating with the passage 63 in the adapter 47 and terminating in flushing medium openings 94 in the central bit 81.
  • the percussion waves produced by the hammer piston 3'7 are transmitted to the adapter 47 and through a shoulder 95 in the socket end of the adapter to the end face 96 of the rear drill rod 77, further through the drill rods over the abutting end faces 98 of the various drill rods of the drill rod train and through the end face 99 of the drill bit bit shank 82 to the ground or rock.
  • a control panel 105 is provided on the drill post 11 and furthermore an air hoist 106 provided with a cable 107 carried over a wheel 188 at the top of the drill post is provided for manipulating the drill tubes when it is not desired or convenient to use the feeding motor for this purpose.
  • Said hoist may, of course, also be used during the erection of the drill post and when the drill post is taken down.
  • a hose 189 compressed air is supplied to the hoist motor 186.
  • the control panel 105 carries control valves not illustrated in the drawing and operated by handles 110, 111, 112, 113 and 114 controlling the reversible feed motor 22, the percussion motor 31, the flushing water, the reversible rotation motor 32 and the hoist 186.
  • Drilling of earth covered rock with the apparatus according to the invention is carried out in the following manner:
  • the central drill bit 81 preferably extending a short distance ahead of the ring drill bit 86.
  • the combined train of drill rods and drill tubes are forced down through the earth by means of the feeding motor 22 and with the rotation motor 32 in operation and flushing water turned on through the train of drill rods.
  • the percussion motor 31 is started and operated.
  • the assembled train has been driven down as long as possible, the .percussion motor and the rotation motor are stopped and flushing is interrupted and the sleeve 85 is uncoupled from the uppermost drill tube 83.
  • the uppermost drill rod 77 is gripped by means of a suitable wrench so as to prevent it from turning and the rotation motor 32 is reversed which unscrews the adapter from the uppermost drill rod 77.
  • the drill is then retracted a suitable distance by means of the feeding motor 22.
  • a sleeve 78 and a further drill rod 77 are screwed unto the end of the previously uppermost drill rod 77 and a section of the drill tube 83 with a pertaining sleeve 84 is slipped over the drill rod and coupled together with the uppermost drill tube 83.
  • the adapter 47 is then again lowered and the uppermost drill tube 83 is connected to the socket 8t) and the sleeve 85 by rotating the rotation motor 32 in ahead direction.
  • Drilling may then be continued with the central drill bit and the ring drill bit as before.
  • the above procedure is continued until the assembled trains of drill bits and rods and tubes has started to penetrate the rock 2 below the loose ground.
  • Drilling is'then usually continued until the ring drill bit has entered the solid rock a short distance, as indicated in FIG. 1 and at 115 inFIG. 1.
  • the ring drill bit 86 has entered the solid rock, for instance 5-10 inches, the
  • the train of drill rods may then be lifted by means of the feed motor 22 and a further drill rod may be assembled and drilling continued by means of the central drill bit 81 only as indicated at 116 in FIG. 1, and such drilling is continued until it is obvious that the material encountered is the solid rock and not only a large boulder or the like.
  • the train of drill rods 77 and the central bit 81 are lifted by means of the feeding motor 22 which is then reversed.
  • the train of drill tubes 83 is, however, left in the hole to protect the hole against earth and other material that would be likely to fill the hole.
  • a smooth clean hole is now available all through the train of drill tubes 83 to the bottom of the hole 116 drilled by means of the central drill bit 81.
  • a tube 117 of artificial resin or other cheap material and provided with a simple sealing ring 113 close to its lower end is pushed down through the train of tubes 83 into the hole 116 where the sealing ring 118 forms a seal with the walls of the hole 116 preventing sand and clay et cetera from entering the drill hole.
  • the cable 107 may be attached to the upper end or slide d0 of the train of drill tubes 83 in any suitable manner and the hoist 106 is then operated to pull the train of drill tubes 83 out of the ground leaving the plastic tube 117 or the like in the ground to provide a suitable hole for the provision of a charge of dynamite or other explosive.
  • the whole drill rig is moved to the next position on the wheels It? or 8 as the case may be, whereupon drilling is continued as hereinabove described.
  • the combination which comprises percussion motor means for providing said axial percussive drilling movement, means for supporting said motor means for axial advancing and retracting movements toward and away from said earth covered rock to be drilled, rotary motor means for imparting said rotary movement and mounted on said support means for movement with said percussive motor means, a driving chuck coaxially aligned with said percussion motor means and in driven engagement with said rotary motor means to be rotated thereby, a drill rod and tube connecting adapter releasably engaged in said chuck but for axial movement with respect thereto, means on said adapter for receiving and transmitting axial percussive forces from said percussion motor means, additional means on said adapter in rotary driving engagement with said chuck for transmitting therefrom said rotary movement, first threaded connecting means on said
  • Apparatus as recited in claim 2 which also includes a plurality of threaded sleeves for joining said segments of said drill rod and said drill tube, said threaded sleeves engaging correspondingly threaded ends of two adjacent segments forming connections therebetween for transmitting said rotary movement, and adjacent said segments each including abutment surfaces substantially perpendicular to the axis of said segments and in direct abutting engagement for transmitting percussive forces from .one said segment to the next substantially independently of said sleeves, the outside diameter of said sleeves interconnecting segments of said drill rod being less than the inside diameter of said drill tube segments.
  • Apparatus as recited in claim 1 which also includes hoist means operating on said support means and operating independently of said motor means thereon for engaging and retracting said drill tube when disengaged from said adapter.
  • Apparatus as recited in claim 1 in which all the elements recited therein are supported on a moveable carriage and including means for selectively positioning said supporting means for addressing said earth covered rock to be drilled at a variety of positions.
  • both said drill tube and said drill rod comprising a plurality of segments, and including motor means for driving both said drill tube and drill rod for both rotary and axial percussive drilling movements
  • the combination which comprises chuck and adapter means for transmitting both said rotary and axial percussive movements to said drill tube and drill rod and for releasably and independently connecting said drill tube and drill rod into driving engagement with said motor means
  • said adapter means including releasable threaded connections for separately engaging said drill tube and drill rod and for transmitting said rotary motion thereto, cooperating abutment surfaces on said adapter means and said drill tube and said drill rod substantially perpendicular to the axes thereof and disposed in direct abutting relation when said drill tube and said drill rod are engaged by said threaded connections for transmitting said axial percussive movement from said adapter means directly to said drill tube and drill rod through said abut
  • said drill tube and drill rod each comprises a plurality of axially extending segments joined in end-to-end arrangement, and a plurality of threaded sleeve connectors for joining said segments in said end-to-end arrangement, and in which each of said segments includes abutment surfaces substantially perpendicular to the axis thereof and in direct abutting relation for transmitting axial percussive forces from one said segment to the next substantially independently of said sleeve connectors.
  • said threaded connection for engaging said drill rod with said adapter means includes an axial threaded recessin the lower end of said adapter means for receiving said drill rod therein, and in which said threaded connection for said drill tube includes a threaded sleeve around said adapter means for receiving a threaded end of said drill tube therein, and in which said abutment surfaces for transmitting said percussive forces are formed at the upper end of said threaded recess for said drill rod and in the upper portion of said threaded sleeve for said drill tube.
  • a connecting adapter assembly for releasably connecting successive drill tubes and drill rods separately into driving engagement with said drive chuck and motor means, which comprises in combination a shank portion on said adapter for releasably engaging said chuck for substantial axial movement with respect thereto during said percussive drilling movements, means on said shank portion forming a driving engagement with said chuck for rotary driving movement therewith, a body portion on said adapterfor receiving said drill tubes and drill rods, first connecting means adjacent the axis of said body portion for engaging one end of a drill rod therein for transmitting rotary movement to said drill rod, an annular abutment on said body portion substantially perpendicular to the axis thereof and adjacent said connect ing means for directly engaging cooperating abutment surfaces
  • said first connecting means for said drill rod includes an axial recess in said body portion for receiving said drill rod therein and including said abutment disposed for directly engaging the upper end surface of said drill rod
  • said second connecting means comprises an internally threaded sleeve in threaded engagement with said body portion and around the outside thereof for receiving the upper end of said drill tube and having a radially inwardly extending annular abutment directly engaging said body portion and the end surface of said drill tube for providing said direct transmission of percussive forces.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
US23120A 1960-04-05 1960-04-05 Apparatus for drilling in earth covered rock Expired - Lifetime US3231032A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US23120A US3231032A (en) 1960-04-05 1960-04-05 Apparatus for drilling in earth covered rock
GB11308/61A GB946697A (en) 1960-04-05 1961-03-28 Improvements in apparatus for drilling in earth covered rock
BE602124A BE602124A (fr) 1960-04-05 1961-03-31 Appareil pour faire des forages dans du rocher récouvert de terre
DK137861AA DK109251C (da) 1960-04-05 1961-04-04 Apparat til boring i klippegrund under jord.
FI0632/61A FI41523B (es) 1960-04-05 1961-04-05

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Application Number Priority Date Filing Date Title
US23120A US3231032A (en) 1960-04-05 1960-04-05 Apparatus for drilling in earth covered rock

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US3231032A true US3231032A (en) 1966-01-25

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US (1) US3231032A (es)
BE (1) BE602124A (es)
DK (1) DK109251C (es)
FI (1) FI41523B (es)
GB (1) GB946697A (es)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490549A (en) * 1968-08-13 1970-01-20 Westinghouse Air Brake Co Hydraulic percussive drill
DE2343080A1 (de) * 1972-11-15 1974-05-22 Boehler & Co Ag Geb Bohrverfahren und vorrichtung zu seiner durchfuehrung
US4003440A (en) * 1974-09-17 1977-01-18 Tidril Corporation Apparatus and process for drilling underground arcuate paths utilizing directional drill and following liner
US4852672A (en) * 1988-08-15 1989-08-01 Behrens Robert N Drill apparatus having a primary drill and a pilot drill
US5289887A (en) * 1991-02-02 1994-03-01 Tracto-Technik Paul Schmidt Spezialmaschinen Kg Method of operating an earth boring machine
US5355966A (en) * 1991-11-08 1994-10-18 Mathis Andrea L Drilling method and an assembly for performing the method
US6047771A (en) * 1995-10-20 2000-04-11 Roeynestad; Tom Toralv Method and a device for hauling a casing or the like up from a bore hole and for inserting the same down to a bore hole
US20020084110A1 (en) * 1999-07-02 2002-07-04 Jarmo Heinonen Rock drilling and mounting frame
US6651754B1 (en) * 2002-01-28 2003-11-25 Richard Hampton Apparatus for moving earth boring machines
US20080011516A1 (en) * 2004-12-07 2008-01-17 Juha Piipponen Method for Casing Drilling, Drilling Unit and Adapter Device
US20140079492A1 (en) * 2011-03-23 2014-03-20 Spinnanker Gmbh Alpine anchor for anchoring threaded rods in soil or rock
US9212974B2 (en) * 2011-12-02 2015-12-15 Lewis Australia Pty Ltd Self contained sampling and processing facility
CN111119883A (zh) * 2020-03-02 2020-05-08 中国矿业大学 一种露天煤矿端帮开采钻车
US20230193698A1 (en) * 2020-05-12 2023-06-22 Bauer Maschinen Gmbh Drill rod coupling and method for actuating the drill rod coupling

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Publication number Priority date Publication date Assignee Title
CN110130831B (zh) * 2019-06-24 2024-03-01 重庆科技学院 顶驱下套管装置

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US1079836A (en) * 1912-12-19 1913-11-25 Roger H Canfield Apparatus for boring wells.
US1507986A (en) * 1921-12-21 1924-09-09 Cavender Walker Tully Rotary well-drilling machine
US1628033A (en) * 1923-06-12 1927-05-10 Francis Harley Davis Drilling apparatus
US1882906A (en) * 1929-11-07 1932-10-18 Cleveland Rock Drill Co Tool for fluid actuated machines
US2292867A (en) * 1940-01-15 1942-08-11 Gas Tool Patents Corp Drilling apparatus
US2536971A (en) * 1949-03-02 1951-01-02 Syntron Co Rotary tool on electric hammer
US2598454A (en) * 1950-06-02 1952-05-27 Raymond Concrete Pile Co Drilling apparatus
US2599770A (en) * 1947-05-12 1952-06-10 Sonapar Soc De Participation S Tool for drilling rocks and the like and drilling device comprising such tools
US2684229A (en) * 1951-09-06 1954-07-20 Frank S Bergstrom Apparatus for exploration drilling
US2701122A (en) * 1951-08-25 1955-02-01 Donovan B Grable Method and apparatus employing compressed gas for drilling wells
US2784942A (en) * 1955-01-11 1957-03-12 California Research Corp Apparatus for simultaneously drilling and casing shot holes
US2830795A (en) * 1956-11-30 1958-04-15 Jr Edwin B Center Well drilling bit
US2903242A (en) * 1956-09-21 1959-09-08 Jr Albert G Bodine Suspension system for sonic well drill or the like
US2948514A (en) * 1955-05-17 1960-08-09 Gebhard J Long Rotary earth drilling apparatus and method
US3023820A (en) * 1956-05-16 1962-03-06 Desvaux Jacques Bore-hole drilling including tubing of the drilled hole

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1079836A (en) * 1912-12-19 1913-11-25 Roger H Canfield Apparatus for boring wells.
US1507986A (en) * 1921-12-21 1924-09-09 Cavender Walker Tully Rotary well-drilling machine
US1628033A (en) * 1923-06-12 1927-05-10 Francis Harley Davis Drilling apparatus
US1882906A (en) * 1929-11-07 1932-10-18 Cleveland Rock Drill Co Tool for fluid actuated machines
US2292867A (en) * 1940-01-15 1942-08-11 Gas Tool Patents Corp Drilling apparatus
US2599770A (en) * 1947-05-12 1952-06-10 Sonapar Soc De Participation S Tool for drilling rocks and the like and drilling device comprising such tools
US2536971A (en) * 1949-03-02 1951-01-02 Syntron Co Rotary tool on electric hammer
US2598454A (en) * 1950-06-02 1952-05-27 Raymond Concrete Pile Co Drilling apparatus
US2701122A (en) * 1951-08-25 1955-02-01 Donovan B Grable Method and apparatus employing compressed gas for drilling wells
US2684229A (en) * 1951-09-06 1954-07-20 Frank S Bergstrom Apparatus for exploration drilling
US2784942A (en) * 1955-01-11 1957-03-12 California Research Corp Apparatus for simultaneously drilling and casing shot holes
US2948514A (en) * 1955-05-17 1960-08-09 Gebhard J Long Rotary earth drilling apparatus and method
US3023820A (en) * 1956-05-16 1962-03-06 Desvaux Jacques Bore-hole drilling including tubing of the drilled hole
US2903242A (en) * 1956-09-21 1959-09-08 Jr Albert G Bodine Suspension system for sonic well drill or the like
US2830795A (en) * 1956-11-30 1958-04-15 Jr Edwin B Center Well drilling bit

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3490549A (en) * 1968-08-13 1970-01-20 Westinghouse Air Brake Co Hydraulic percussive drill
DE2343080A1 (de) * 1972-11-15 1974-05-22 Boehler & Co Ag Geb Bohrverfahren und vorrichtung zu seiner durchfuehrung
US4003440A (en) * 1974-09-17 1977-01-18 Tidril Corporation Apparatus and process for drilling underground arcuate paths utilizing directional drill and following liner
US4852672A (en) * 1988-08-15 1989-08-01 Behrens Robert N Drill apparatus having a primary drill and a pilot drill
US5289887A (en) * 1991-02-02 1994-03-01 Tracto-Technik Paul Schmidt Spezialmaschinen Kg Method of operating an earth boring machine
US5355966A (en) * 1991-11-08 1994-10-18 Mathis Andrea L Drilling method and an assembly for performing the method
US6047771A (en) * 1995-10-20 2000-04-11 Roeynestad; Tom Toralv Method and a device for hauling a casing or the like up from a bore hole and for inserting the same down to a bore hole
AU775489B2 (en) * 1999-07-02 2004-08-05 Sandvik Tamrock Oy Rock drill and mounting frame
US6705407B2 (en) * 1999-07-02 2004-03-16 Sandvik Tamrock Oy Rock drilling and mounting frame
US20020084110A1 (en) * 1999-07-02 2002-07-04 Jarmo Heinonen Rock drilling and mounting frame
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Also Published As

Publication number Publication date
GB946697A (en) 1964-01-15
DK109251C (da) 1968-04-08
BE602124A (fr) 1961-07-17
FI41523B (es) 1969-09-01

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