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Publication numberUS1841302 A
Publication typeGrant
Publication dateJan 12, 1932
Filing dateMay 18, 1927
Priority dateMay 18, 1927
Publication numberUS 1841302 A, US 1841302A, US-A-1841302, US1841302 A, US1841302A
InventorsSimmons Richard P
Original AssigneeSimmons Richard P
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Well drilling apparatus
US 1841302 A
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Description  (OCR text may contain errors)

Jan. 12, 1932.

R. P. SIMMONS WELL DRILLING APPARATUS INVENTOR Q I ATTORNEY 5 Sheets-Sheet 1-71 Jar/747,90 J? JJMMOMS' Original Filed May 18. 1927 Jan.

12, 1932. R. P. SIMMONS 1,841,302

.WELL DRILLING APPARATUS Original Filed Ma 18,. 192-1 5 Shets-Sheet 2 Ric/$.3-

.18 A, 1 2@ I 27 z? Q t i a 5 {Z5I i M 47' l in I it 51: a r W 9 i 5 5 1 g 1'1 Q .l 1 21 D x; 52 H Q T C I I x RZ'GJ.J. Y i g f g l I 62 0, J9 g3 10 1 "*0 {0 1% 11 55 g: 5 1 Q I 1 x 55 k i; E i: %A 4 i z filCf/AIQD P. Ji MMq/{i 'Jan. 12, 1932. SIMMONS 1,841,302

WELL DRILLING APPARATUS Original Filed May '18, 192! 5 Sheets-Sheet 3 INVENIOR TNE ATTORNEY Jan. 12, 1932.

R. P. SIMMONS WELL DRILLING APPARATUS Original Filed May 18, 192! 5 Sheets-Sheet 4 ATTORNEY Jan. 12 '1932. v R. P. SIMMONS 1,841,302

- WELL DRILLING APPARAT'US Original Filed May 18, 1927. 5 Sheets-Sheet 5 INVENTOR ATTORNEY Patented Jan. 12, 1932 UNITED STATES,


WELL DRILLING APPARATUS Application filed May 18, 1927, Serial No. 192,449. Renewed March 14, 1930.

This invention relates to improvements in well drilling apparatus and has for its primary object, theprovision of a means for removing the drilled substance from the well 5 to the surface of the earth during the drilling operation to greatly reduce the time and expense now required to drill a well.

Another object of the invention is to lift the drilled earth and rock a predetermined l distance by the use of a system of conveyors,

crush the drilled earth and rock into disintegrated articles and simultaneously dry the particles by passing the crushed mass through a heater, and lifting the dried particles to .15 the surface of the well by air, water or steam.

Another object is the provision of a well drilling machine having an electric motor driven rotary drill, the speed of which may be varied to suit the strata of rock or dirt 'being drilled through, and which speed is controlled from the surface of the well.

With these and other objects in view, the invention resldes 1n certain novel construc-v tion and combination and arrangement of it parts, the essential features of which are 1 Figure 5 is an enlarged detail vertical sec;

tion through the current distributor mechanism. r

the line 6'-6 of Figure 1.

Figure 7 is a horizontal sectional .view on the hue 7-7 of Figure 1.

' Figure 8 is a horizontal sectional view on the l ne 8-8 of Figure 1.

Fi re 9 is A. horizontal sectional view on the hue a 9 of Figure 1.

Figure 6 is a horizontal sectional view on Figure 10 is a horizontal sectional view on the line 1010.o'f Figure 1.

Fi ure 11 is a horizontal sectional view on the line 11-11 of Figure 4;.

Figure 12 is a horizontal sectional view on the line 1212 of Figure 4.

Figure 13 is a sectional elevational view showing the latch actuating device.

' Figure 14 .is a vertical longitudinal sectional view of a slight modified form of my 00 invention.

Figure 15 is a horizontal sectional view on the line 21-21-of Figure 14.

Figure 16 is a horizontal sectional view on the" line 2222 of Figure 14.

Like reference characters refer to like parts throughout the several figures of the drawings. 1

Referring more particularly to the drawings, the reference character 'A designates a 79 non-rotatable tubular housin head including an inner cylinder wall 10 aving beveled seats 11 provided adjacent the top thereof for the reception of an electric motor 12, which motor has flat beveled portions 13 for co-action with the seats 11. The motor is inserted into the tubular housing head by low ering the same by a cable 14 havin connection with an eye 15 provided on t e top of the motor casing. When lowered into the 3 tubular housing head, the motor automatically seats itself and therefor the same cannot pass a predetermined point. I

The tubular housing head'section A also r includes an outer cylinder wall 16 which is integral with the inner cylinder wall 10' but spaced therefrom to provide air ocketstherebetween. The opposed ends of t e casing A are respectively threaded to an up r tubular housing head casing section B an a lower tubular housing head casing section C both of which have 1111161 and outer s aced walls disposed in vertical alignment wit the inner and outer walls of the section A.

Enclosed within the inner cylinder 10 and disposed below the motor is a speed transmission 17 for varying the speed from the motor driven shaft to the driven shaft 18 {which lattershaft extends downward and termnates adjacent the bottom of the casing A casing 19 fits snugly within the inner cylinder wall 10 and is closed at opposite ends to provide a bearing for thedriven shaft 18. The casing 19 is div :led by spaced partitions 20 and 21 into three separate compartments 22, 23 and 24 and which I shall refer to as a pulverizer compartment, crusher compart ment, and conveyor compartment, respectively. The compartment 22 houses a pulverizer 25 which comprises a stationary ring 26 and an eccentric rotor 27 fixed to the shaft 18. An inlet 28 is provided in the partition 20 for the passage of the dirt and rock to be pulverized after passing through the crusher now to be described. An electric heating coil 29 surrounds the ring'26 for heating the same whereby the pulverized particles are thoroughly dried as they pass therethrough for a purpose to be hereinafter mentioned.

Fixed to the shaft 18 and housed within the compartment is a crusher 30, having outwardly extending spirally arranged teeth or lugs 31 extending from the periphery thereof. The crusher is also eccentrically mounted with respect to the walls of the housing so that the mass to be crushed enters through the inlet 32 provided in the partition 21 and is carried around and crushed against the side wall of the housing.

Fixed to the shaft 18 and disposed in the compartment 24, is a spiral conveyor 33 which lifts the drilled substance from the lower end of the casing 19, the end wall of which is provided with an inlet 34. The crusher 30 and the conveyor 33 are surrounded by an electric heating coil 35 which dries the drilled mass as it is lifted therethrough.

The shaft 18 terminates just below the conveyor 33 and depending from the end wall of the casing 19 is a stationary collar 36 within which the lower end of the shaft 18 extends. Slidable but non-rotatable within the collar 36 is a sleeve 37 which overlaps the end of the shaft 18 and a stub shaft 38 provided on a screw conveyor 39. The lower end of the shaft 18 is provided with a square socket 40 for receiving the squared reduced shank 41 extending from the stub shaft 38. The conveyor 39 is keyed for rotation with the driven shaft 18 but is reciprocal with respect thereto to lift the drilling tool 42 a slight distance from the bottom of the well hole during the drilling operation. The tool 42 is detachably associated with the lower end of the conveyor 39 by providing a reduced threaded stud 43 thereon for threading engagement in a socket pil'pvided in the bottom of the conveyor 39.

e drilling tool 42 is provided with diverging passages or jets 44 which communicate with a compartment 45 within the body of the conveyor for the passage of "compressed air or its equivalent used in blowing the.

drilled substance to the surface of the well. An air line or conduit 46 leads from the chamber45 to the air inlet duct 47 provided in the wall of the casing 19, and to which a flexible hose 48 is connected, which hose leads to a compressed air pump or tank (not shown) and which is disposed on the surface.

For imparting a periodical reciprocating movement to the grinding tool 42, I provide a cam shape or irregular groove 49 in the lower end of the shaft 18 andwhich co-acts with a groove 50 provided in the inner wall of the sleeve 37 to form a ball race for the reception of a loose ball bearing 51. It will be obvious that when the high spot of the cam groove passes over the ball, the conveyor 39 and drilling tool will be moved upward, dur ing which movement, the drilling tool will have a biting, slicing and chipping elfect also an opportunity to cool as it is lifted from engagement with the substance being drilled. Slidably mounted on inclined tracks 52 provided in the body of the conveyor 39, are expansible and contractible bits 53 which are adapted to cut the walls of the well beyond the plane of the drilling tool 42. The upper faces of the bits are provided with spaced teeth 54 for co-action with a worm shaft 55. The inner ends of the worm shafts are pro vided with beveled gears 57 for constant mesh with a ring gear 57 carried by the driven shaft 58 of an electric motor 59 disposed within a compartment 61 provided in the conveyor 39. The conveyor 39 is constructed of two separate sections fixedly connected together in order to facilitate the insertion of the mo tor 59 and its operating parts.

In order to supply current to the electric heaters and motor 59,1 pass a cable 62 through the casing 19 to the surface of the well to a suitable source of supply and certain of the wires within the cable lead to the motor 12 and heating coils hereinbefore mentioned. Two conductor wires 62 lead to contacts 63 provided in a stationary collar 64 which encircles the stub shaft 38. To cause a. contact to be constantly effected between the conductor wires'62 and the wires 65 leading to the motor 59, during rotation and reciprocation of the stub shaft 38, I connect the wires 65 to contact rings 66 which are insulated apart and engage the respective contacts 63 during the upward movement of the stub shaft 38. The rings 66 are sufficiently wide enough to accommodate for the slight up-' wardmovement of the stub shaft, whereby current may pass to the motor 59 without interruption.

From the description thus far, the operation of the apparatus is as follows :In starting to drill a well, it is first necessary to provide a hole of a width and depth to receive the tubular housin head sections A and C, which may be dug y the use of a drill now employed for this nurpose. When the desired depth is reached, the sections A and C are lowered therein and the drill unit is lowered into the sections for a distance to cause the'motor 12 to come to rest oil itsseat 11. The drilling tool 42 and bits53 conthct with the'bottom of the partially drilled well and the motor 12 turned on.' Rotati will then 5 be imparted to' the driven shaft 8 through the; transmission 17 which will turn' the drill tool 42, to bore into the earth, and rotate the bits 53 to cut that portion of the earth not touched by the drill 42 whereby to produce a hole of a size equal to the diameter of the sections A, B'and C. The weight'of the unit causes the boring tools to automatically move downward under .the control of the cable 14' as the drilling operation proceeds. The tu-' bular housing head and its following-section's are suspended from the surface of the well in any suitable manner to prevent the bot-;

tom of the same from dropping down upon the bits 53. However, the tubular head is gradually lowered as the depth of the well increases. Either air, water ,or steam under pressure passes. from a suitable .source of sup ply down through the hose 48, inlet 47,-conduit 46 to the chamber from where it passes through the jets or ducts 44 to the end of the drilling tool and thence upward about the conveyor 39, through the'passage 34, chamber 24, opening 32, chamber 23, opening 28,.

chamber, 22, and thence to a discharge or return hose 'leading to the surface ofthe well. The air tends to lift the-lo0se dirt and rock inits travel from the bottom of thewell, but itsIprimary purpose is to blow or puinp the pulverized material to the surface. The drilled material is lifted upward by the conveyors 39 and 33 to the crusher 30, through the openings 34 and 32, and which crusher reduces the density of the particles of material after which the'colum'n of air or water passing through the, crusher, carries the same into the pulverizer 25 through the opemng 28. The materialis reduced to-powderedform by the pulverizer and is blown upward. through the discharge pipe 60 to the surface. 45

will be rotatedat a slower speed when drill- I in through rock, thanif thesam'e were drilling through sand or soft dirt. The transmission comprises a casing 61f within which 60 the shaft 62' of the motor 12 extends and a which shaft carries a gear 473 which constantly meshes with a larger gear 64 fixed to a counter-shaft 65 which .is journalled in the casing. -A'stub shaft 66' also jour- 5 nalled in the casing and is'disposed in axial will be appreciated that the drilling tools.

end of the stub shaft having a 'gear.67 fixed thereto for constant meshing engagementwith another gear-68 fixed toithe countershaft 65', anda gear 69 providedonthe other end'of s'aid stub shaft. The gear 69- constantly meshes with'a gear 70 on the alignment with the shafts 62f and 1 8, one

counter-shaft fof impartingajreduced speed thereto. The counter-shaft 65 also has a gear 71 thereon for obtaining an intermediate speed, a gear 72 for low speed and a gear 73 meshing with an idler gear. 74 for producing a reverse rotation of the driven shaft 18 when the sliding gearsnow to be described are respectively engaged therewith. I

A double acting gear 7 5'is slidably mounted on the top end of the driven shaft 18 and.

when in neutral osit-ion,-the same isdis- "posed in the position shown in Figure 2 of the drawings. "A larger gear 76 is also mounted on the driven shaft 18 and is adapted to engage with the low gear 7 2 orthe idler gear 74 depending upon the direction of movement of the same; The gear is actuated by a yoke 77 fixedly mounted on a sliding counter-shaft 78while the gear 76 is'actu .ated by. a yoke 79 fixed on a sliding countershaft 80. The yokes 77 and 79 are held in I a neutral position by equalizing springs 81 which encircle the shafts 78 and and abut opposite sides-of the yokes. Whenthe yoke 77 is actuated'in one direction, it will-movethe gear 75 into co-acting engagement with the gear 71 to drive the shaft 18:a't an,inter mediate speedbut if moved in an opposite direction it will cause the said gear to mesh 1 with the gear 69'which will-rotate'the shaft- 18 at high speed.

The gears 75 and 7 6 are selectively controlled from the surface of the well by electric means which includes solenoids '82 antl 82 'for receiving therespective ends of the counter-shaft 78 and which acts as the core of the solenoids. The solenoids 82 are arranged in separate electric circuits 83 and 84 with a battery 85 and a knife switch 86 having contacts 87 and 88 for engagement by a switch arm 89. It will be observed that if the switch'arm is'r'nov'ed to'engage the.

contact 87 the solenoid'82 will be energized and'willmov'e the core or 'countersshaftto cause the glen-'7 5 to mesh with the intermediate gear, 1 against the action of the e ualizing springs 81. .Whenthe circuit is bro en,

the springs tend to move the core or countershafttoneutralposition. However, if the switch armis moved to engagg-ithe contact 88, the circuit 83 is closed andwill'causeth'c gear 75 to engage gear 69 to drixe-shaft18 at high speed.

lar manner by soleno'ids89 and 90'which' are -ar ranged in circuits 91 and 92 with an electric switch 93 and the battery 85. The switch 93 comprises contacts 94 and-95 and a. switch '12s P i a The con" ter-shaft80'1sactuated m 8. 811111 arm 96'. Whenthe switch arm is engaged with contact 94, the circuit 91 is closed to energize the solen0id'89 to put the gears in low speed, and when engaged with contact 95, a reverse speed is obtained by reason of the energizing of the solenoid 90. High speed is obtained by shifting the gears in a manner now employed in automobiles, that is, by first going through the low and intermediate gear.

After the well has been drilled, the drill: ing apparatus is hoisted to the surface of the well by pulling upward upon the cable 14, but the sections A, B and C are left at the bottom of the well. The concrete after being poured into the wall form is left to dry, after which the shell sections 111 and 112 are lifted to the surface and uncoupled as the screw joints appear. However, in order to release the catch device 108 from the lower shell section, it is necessary to lower a separate dog alignment with the tails of the dogs 109 and openings 110, so as to engage and retract the bills of the dogs from the slots 113 and 114. The blocks are expanded by a conical shaped head 123 which engages beveled faces 124 on the blocks, and'which head is slidably and non-rotatably mounted within the casing 119. The conical head is provided with a tubular extension 125 having internal screw threads for coaction with a screw 126 which is driven by an electric motor 127 mounted in the base 118. A cable 128 containing the wires leading to the motor extends upward through the casing 119 to the surface of the well. An eye 129 is provided at the top of the casing'119,

to which acable is attached for facilitating the lowering and lifting of the device into and out of the well. To expand the blocks 121, the motor 127 is turned on which rotates the screw shaft 126 causing the upward movement of the head 123 to set up a wedging action between the same andthe blocks. This action expands the blocks outward beyond the casing and into engagement with the tails of the locking dogs to retract the same. The lowermost shell sections 111 and 112 are now released and are free to be lifted out of the well. When the shell sections have been removed, the device 118 is lifted to the surfacev by'actuating the motor in an opposite direction to lower the head 123-to permit the springs 122 to retract the blocks within the casing 119.

In Figure 14of the drawings, I have shown a slightly modified form of my invention wherein the use of the crusher and pulverizer are dispensed with and also the pneumatic means for blowing the drilled material to the surface. In this form, the material is lifted to the top of the apparatus by a system of conveyors which will now be described. The inner wall- 10 of the casing section-A is prov ded with outlet openings 143 disposed .above the level of the motor and inlet open ings 144 disposed above the conveyor 33 and tary motion is imparted to the conveyor 145 by the motor 12, whose drive shaft extends above the motor and has a gear 146 mounted thereon. Two gear trains 147 are respectively disposed on=opp0site sides of the axis of the motor shaft and which impart rotation .to the conveyor 145 through an annular series of gear teeth 148 provided on the top of the conveyor internally thereof. The cylindris cal conveyor 145 is also shown in the pre ferred form for operation with such a unit now being described when the necessity arises.

The top of the motor shaft is journalled in a spider 149 having an eye 150 to which a cable is attached for lowering and raising the apparatus into and out. of the well. A

spiral conveyor 151 is fixed t0 the motor shaft and picks up the drilled material as it passes up through the openings 143. The drilled 'material accumulates above the conveyor 151' but the same tends to force the accumulated mass to the surface. be used when drilling through soft dirt and also when a geologist desires to obtainanuntouched specimen of the earth or rock.

From the foregoing description, it will be appreciatedthat the advantages of my invention over the present method of drilling a well are numerous, as it is unnecessary to.

remove the apparatus from the well after the drilling operation is begun, other than for replacing the drilling tools or bits as they become worn. The drilled 'material is automatically removed from the well and a concrete casing formed about the walls ofthe well during the drilling operation. By this apparatus a well may be drilled in decidedly less time-now than the method now followed and which is well known to one skilled in the 'art.

The principle embodied in this invention may be slightly changed to work in a horizontal position instead of vertical, and will be found most useful in digging subways, tunnels under rivers and wherever a horizontal passage is desired. The onl changes necessary would be in increasing t e size'of This form of unit may the units to facilitate the boring of holes of housing all operatively connected to said larger diameters.

While I have described what I deem to be .eration thereby.

the most desirable embodiment of myinvention, it is obvious that many of the details may be varied without in any way departing from the spirit of my invention, and I therefore do not limit myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claims.

-What is claimed as new is 1. In an apparatus of the class described, the combination of a tubular housing head, drilling means extending from the lower end of said tubular housing head, pulverizin means, conveyor means for lifting the drille material from the bottom of a well to said pulverizer means, and pressure means for lifting the pulverized material to the surface of a well.

2. In an apparatus of the class described, the combination of a tubular housing head, drilling means extending from the lower end of said tubular housing head, pulverizer means, conveyor means for lifting the drilled material from the bottom of a well to said pulverizer means, and pressure means for lifting the pulverized material to the surface of a well and heating means for drying the drilledmaterial during its travel to said pulverizing means.

3. In an apparatus of the class described, a tubular housing head adapted to move downwardly into a well during the drilling of the same, a driven shaftjournalledfor rotation within said housing head, a drill element carried by the end of said driven shaft and extending beyond the lower end of said housing head, and means for lifting the' drilled material from the bottom of a well to the surface thereof, said means including a series of screw conveyors, crushing and pulverizing means, and pressure means for lifting the drilled material after being pulverized.

4. In an apparatus of the class described, well drilling means, pulverizer means, lifting means for raising the drilled material from the bottom of a Well to said pulverizer means, and pressure means for lifting the pulverized'material to the surface of the well.

5. In an apparatus of the class described, well drilling means, pulverizer means, heating means, and lifting means for successively raising the drilled material from the bottom of a Well and passing it through said pulverizer means and said heating means to the surface of a well.

6. In a well drilling apparatus, a tubular housing, a driven rotatable shaft jouri nalled in said housing, a drill extending beyond the lower end of said housing, a spiral 55 conveyor, and a pulverizer Within said tubular driven rotatable shaft for simultaneous op- In testimony whereof I aflix my signature.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2915288 *Jul 26, 1955Dec 1, 1959Edmond Crapez LeonMethods of and apparatus for boring wells, drifts and the like
US3173501 *Apr 19, 1960Mar 16, 1965Carpac Invest LtdUnitary high frequency impact and rotary drilling apparatus
US3565190 *Mar 6, 1969Feb 23, 1971Sanwa Kizai Co LtdAuger-type boring machines
US3661218 *May 21, 1970May 9, 1972Brown Cicero CDrilling unit for rotary drilling of wells
US3934660 *Jul 2, 1974Jan 27, 1976Nelson Daniel EFlexpower deep well drill
US4258805 *Aug 27, 1979Mar 31, 1981Dresser Industries, Inc.Low cutter load raise head
US5959380 *Sep 3, 1996Sep 28, 1999Camco Drilling Group Ltd.Prevention of particle accumulation between rotatable components of an electrical machine
EP0762606A2 *Sep 4, 1996Mar 12, 1997Camco Drilling Group LimitedImprovements in or relating to electrical machines
U.S. Classification175/17, 175/315, 175/406, 175/286, 175/106, 175/104, 175/394, 175/324, 175/323, 175/102
International ClassificationE21B4/00, E21B4/04, E21B21/00
Cooperative ClassificationE21B4/04, E21B21/00
European ClassificationE21B4/04, E21B21/00