US2348024A - Earth boring apparatus - Google Patents

Description

May 2, 1944. A. J. PARRlsH EARTH BORING APPARATUS 6 Sheets-Sheet 1 Filed Oct. 21, 1940 Zara @@yzpff@ i Wamnw May 2, 1944. A. J. PARRlsH EARTH BORING APPARATUS Filed' Oct. 2l, 1940 6 Sheets-Sheet 2 May 2 1944- A. J. PARRISH V2,348,024

EARTH BORING APPARATUS May 2, 1944. A. J. PARRlsH EARTH BORING APPARATUS Filed Oct. 21, 1940 6 Sheets-Sheet lil' May 2, 1944 A. J. PARRlsH 2,348,024

EARTH BORING APPARATUS Filed Oct. 21. 1940 6 Sheets-Sheet 5 May 2, 1944 A. J. PARRISH 2,348,024

. EARTH BORING APPARATUS Filed O :l',.A 2l, 1940 6 Sheets-Sheet 6 4 ff fi ff oooooo ooooo 'fz f /aj/ i/ 942 WZ i NIH Sum@ Patented May 2, 1944 UNITED sTAres miam vori-"Ici:

2,348,024 EARTH BORING APPARATUS E-Alan Jay Parrish, Paris, Ill.

Application October 2l, 1940, Serial No. 362,139

9 claims. (el. Z55-21) vThis invention relates to portable earth boring apparatus vand more particularly to kapparatus for effecting rapid and accurate earth borings at controlled angles in respect to a mobile support.

One of the objects of the invention is the provision of an apparatus for making accurate earth borings atco-ntrolled angles from a transport vehicle for demolition work, for borings along highways and for general boring operation accessible to the machine.

Another object of the invention is the provision of a boring machine and supporting base structure providing vertical swinging adjustments to desired angles for drilling operations.

A further object of the invention is the provision of a boring machine and cooperating base assembly carrying said machine in a retracted loaded position or in a forward pivotal drilling position.

A further object isthe provision of a controlled angle drilling apparatus having self-adjusting driving means.

Further objects include the provision of manually operable means for moving the machine on its base and an improved adjustable motor mounting means.

In carrying out these objects, and others which will become apparent from the description of the invention, there is provided apparatus which will be better understood from the following detail-ed description having reference to the accompanying drawings wherein.

Fig. 1 is a view in side elevation of an embodiment vof the invention with the drilling unit shown by full and dotted'lines in dierent positions of adjustment.

Fig. 2 isa view in side elevation of the apparatus of Fig. 1, with the boring unit in retracted or loaded position.

Fig. 3 is a broken end view showing Ain plan the machine mounting and base.

Figs. 4 and 5 are sectional views, respectively, taken on lines 4-4 and 5-5 of Fig. 3.

Fig. 6 is a rear broken persepective oi the machine and-its mounting in the dottedline position oi Fig. 7.

Fig. 7 is a detail longitudinal section showing mounting details of the machine base and subbase, and Fig. 8 is a perspective View of the dei tachable mounting plate.

Fig. 9 is a central vertical section of the cable winding device of Figs. l and 2.

l is a transverse end view partly in section illustrating the boring unit and base 55.

assembly details, and Fig. 1l is a vertical section taken on line II-II of Fig. 10.

Figs. 12 and 13 are enlarged fragmentary views in side and end elevation, respectively, illustrating motor base and mounting details.

Fig. 14 is a view on liner Ill-I4 of Fig. 12, showing the top plan of the motor support, and Fig. l5 is a transverse section on line I5I5 showing roller and king bolt details.

Fig. 16 is a detail sectional view taken on line lt-I of Fig. 12.

Referring to the drawings, there is illustrated in Figs. 1 and 2 thereof in particular, earth boring apparatus for controlled angle earth borings y in an arc extending over 90 from a substantially 2, havingnxed thereto in overhanging relationship at one side or another, an inclined boring machine supporting base 3. I This base, for economy of construction and strength, consists of the'parallel :formed` standard channel sections :i and 5 having inwardly facing anges and depending portions overlying the sides of the vehicle support. Portions of the channels overlying the vehicle support have weldedA thereto cross tie plate S extending laterally beyond the channels. these extensions being apertured to receive the fastening bolts 1. The upper ends of the channels are each closed by a welded plate 8 supporting aligned pivot bearings 9 for the machine supporting removable pivotal pin i I8 and the channels are apertured in alignment to receive the removable fastening pin I I. Horizontal rearwardly extending parallel angles I2 and inclined angles I3v have their meeting ends tted together and Welded, these ends being maintained in spaced parallel relationship by the underlying tie plate I4 with lateral extensions for fastening bolts l5. The angle members are secured by Welding to the channel members. .inclined angles I3 have inwardly facing flanges which, at a predetermined distance from the pivot bearings, are provided with seating depressions I5 to receive Wheels on the earth boring unit mounting means presently to be described.

The earth boring unit il is movably mounted on base 3 to occupy a retracted or loaded positionas shown in Figure 2, or an advanced or pivoted position supported by pin Ill, as shown in Figure l. The boring unit is of the typedescribed and claimed in my `copending applica- The boring unit includes a frame 25 andbase 21 of welded structural members. Thebase isof less width than the distance between inwardly directed flanges of the base to permit fr'eelon-v bottom sides of the box structure. Sides of the box member of the sub-base are apertured in alignment at spaced positions to receive the removable supporting pivot pin l0, removable pins 41 and 48, and shaft 49 carrying on opposite sides of the box structure flanged wheels 50 and 5|, so spaced as to engage and ride on inclined angle members I3 of the base 3 when the machine is swung on supporting pivot pin l0. A series of verticallyaligned apertures 52 through the web portions of the channel members 45 and 46 are adapted to register with cen- -tral apertures in the base tie channel 2| and base in'such manner as to allow a lateral swinggitudinal movement of the u'nit in theftrackway. Horizontal flanges 28 welded to the base are slidi,

ably received in the trackway for adjstably supporting the. unit, the. fits between the flanges being such as to provide free but accurate longitudinal movement of the unit 'along the base. A boring toolV drive shaft 29 extends longitudinally of the unit base driven by chain sprocket 39 and carries a combined chuck and flexible coupling 3| having detachable driving connection with auger I8. The boring tool shaft has power transmission connection vwith flexible drive shaft 32 through reduction gearing including a series of chains and sprockets. The gearing is such as to provide a largegear reduction ratio for transmission of substantial power from the flexible drive shaft.

Sliding movement of the boring unit longitudinallyof the base is accomplished only by manually operated feed means. Movement of the unitisproduced by rotating pinions 23 fixed to pinion shaft 33 carrying sprocket 34 fixed to the shaft and combined worm gear and clutch 35V rotatably'mounted on the shaft but selectively engageable with clutch member 35 through manually operable lever'means 31. Sprocket 34 is connected through low ratio chain and sprocket Y connection to shafts 38 and 39 adapted to receive hand wheel 4|), rotationof which'provides for rapid movementfof the unit along the base when the worm gearclutch is disengaged. Shafts 38 and 39 are connected by gear reducing sprockets and cooperating chain to provide two optional gear reductions usable in different positionsfof The feed mechanismis so sensitive and easily manipulated and the unit is so accurately guided that an operatorr is enabled to accurately vfeel drilling conditions throughout a'drilling operation. Y This is not possiblewith machines having automatic feed arrangements.

The boring machine hereinbefore described is mounted on base 3 for retractible and swinging'movement by a sub-base 44. This base consists 'of a box 'structure of interiltted standard channel members 4 5 and 46 welded together with their flanges in overlapped position and with web portions of the "channels 'forming'top and ing. or pivotal movement of the machine on bolt 55. Clamping plate 54 overlies cross-tie channel 2| Yand is provided at its ends with depending ears 53 which areapertured and Straddle the channel memberbox frame to receive the removable pins y41 and 48. By this arrangement the machine is securely mounted on' the sub-base but is capable of swinging movement in a direction at right angle to that provided by the pivotal support of the sub-base on pivot pin |0. The forward end ofthe machine is supported on the sub-base by arcuate angle member 51 having its'flange portions `connected by welding to the sub-base box frame, vfiller piece 58 forming the supporting welded connection between the horizontal .flange portion and the .base frame. The ends of the angle'memberare provided with a series of spaced apertures 59 adapted to receive manually releasable spring pressed latch bolts 63 fixed to the sides of the machine base channels. These latch bolts serve to x the machine` in a position of adjustment when swung about the bolt 55 and wear plate 53 accommodates base channel 2| in the swinging movement. The arcuate angle member has pivotally mounted thereon on its under or rear. side spaced supports 6| positioned to slidably engage opposite sides ofthe base 3. These supports are provided with a series of spaced apertures adapted to receive the removable pin for angular adjustment of the machine when tilted on pivot pin IB. In the arrangement described, the machine can be angularly adjusted in two directions about pivot pin I9 and bolt 55; Wheels 5U and 5| are so spaced with respect to pivot pin I0 that when the machine is swung downwardlyl at its rear end to engage base 3 the wheels enter depressions IG in the inclined channels. With the machine in this position, pivot pin l0 can be. removed to; allow the machine to move-rearwardly of the base on wheels 50 and 5| to the retracted or loaded position shown in Fig.l 2. Conversely, when the machine is advanced upwardly of the inclined base to a position where the wheels engage the depression it is accurately positioned to permit passage of the pivot pin l0 through the bearings and ,sub-base. chine with respect tothe sub-base support iis readily accomplished by movement of the boring unit in its base.

Means controlling swinging movement of the machine on pivot pin I0 consists of cable 62 hav-` ing one end fixed 'to the sub-base at 63 from whence it passes downwardly around sheave S4 rotatably mounted onbase '3 and rearwardly over sheave 65 at the rear e'nd of the sub-base and then downwardly around a winding drum 66 on shaft 61 journaled in parallel spaced up- Balancing of the maright channel members 68 and 69. The shaft 61 also carries toothed Wheel TU and chain sprocket H driven by 'chain 12 trained over a driving sprocket 13 on shaftl carrying at one end hand wheel 15. Rotation of the toothed wheel in one directionl is normally preven-tedby the manually operable pivoted dog 'I6 on shaft 11 journaled in bearings' xed to the angesl of the channels.l The dog is so designed and positioned that its weight tends to swing it downwardly into engagement with the periphery of the toothed wheel.

The structural arrangement described provides for adjustment 'of the boring unit with its base and sub-base to a retracted or loaded position as .illustrated in Fig. 2 or to a forward or controlled angle pivotal position on. pivot pin I as shown in Figs. 1 and 6 in particular. When the boring machine is in the position shownv in F'ig. 6 or in thedotted. line position of Fig. 1, Vit' occupies a position permitting substantially perpendicular boring operations or those provided for by the lateral swinging movement of the machine on the king bolt 55 and the xation of the machine in a position of adjustment by the latch bolts 60 detachably engaged in the receiving apertures of member 51.

Controlled angle adjustment on pivot pin I9 at right angles to the swinging adjustment permitted by bolt V55,A and from the vertical position shown in Fig. 6, is eiected by the removal of pin I` and by winding the cable 62 on the drum 66 by operation of hand wheel 15. The tension applied to cable 62 serves to swing the machine downwardly from the vertical and angular positions shown in Fig. l to an inclined position wherein the wheels 5l)v and 5l on the subbase engage in the depressions I6 in the inclined upper angles of base 3. The machine can be i-xed at controlled angles irl-this swinging movement by restoring the locking pin Il by passing it through selected ones of apertures 18 in the arms 6I and aligned holes in. the base. This provides positioning of the machine for controlled angle boring operations from a position inclined above the horizontal to a. substantially vertical position as illustrated in Figs. l and 2. and in an intersecting arc provided byv lateral swinging adjustment on the boit 55 and locking engagement of the latch bolts Ell.

Extremely accurate progressive earth borings may be made in any selected positioning of the machine by the power driven boring unit Hand auger I8, under Asensitive manual control afforded by the feeding means previously described. The auger f8 is preferably of the self-clearing type described and claimed in my copending ap,- plication Serial No. 288,237, filed Aug. 3, 1939, having a detachable cutter head 19 and one or more auger sections 8u with spaced spiral nights' having reaming cutters at their forward end. However, the auger structure forms no ,part of the novelty in this invention except as a4 neces.- sary element and other augers may obviously be employed. At the commencement of a drilling operation the boring unit is in a retracted position-in its guiding base, from which position it is advanced as drilling conditions .permit by operation of the hand wheel 43 until it becomes necessary to add 'another anger section. Successive auger sections may be `added by disconnecting the boring unit from already inserted tool sect-ions and feedingitrearwardly of theA base to receive an interposed tool section, after' which the progressivedrilling may be resumed.'

l chine.

Tool sections are withdrawn in areverse of these operations.

When the boring machine occupies the positionl with wheels 5i) and 5| engaged in the dcpressions I6 of the base, the pivot pin Ill can be withdrawn or inserted. Thus, when the machine is swung downwardly with the wheels in engagement with the base, the pivot pin can be withdrawn to release the machine for rearward movement down the inclined base to the retracted or loaded position shown in Fig. 2. Conversely, when the machine is advanced from its retracted position to the point where the wheels engage the base depressions inthe sub-base it is in the proper position for insertion of pin Hl to provide pivotal movementof the Vmachine in controlled angle drilling operations. The controlV cable 62 and its cooperating sheaves may be so arranged that forward movement of the' machine from its retracted position can be accomplished to a certain point by tension applied toY the cable.

The structural arrangement is such that the power driven boring unit must have considerable latitude of movement in its swinging andV reciprocating positions. In order to permit this movement, the boring unit is driven by an automatically adjustable independent motoror power plant 8l pivotally and adjustably supported in elevated position on the mobile support 2. The illustrated embodiment consists ofthe motor 8|,- clutchV and gear transmission 82 and ilexible drive shaft 32, the latter aording power transmission between the motor and the boring ma- The motor is pivotally supported on a wheeled base 83 consisting of rear wheels 8l! rotatably mounted on the base consisting of spaced channel members 85, deck 86 welded thereto, and the `front welded inverted tie member 81. Tie member 81 carriesat its central point the rotatably mounted yoke 88 which in turn rotatably supports front Wheel 89. The yoke 88 has fixed thereto the second yoke 99 detachably associated with handle 9|. The deck or top 8B is centrally apertured to receive king pin 92 and carries anti-friction rollers 93 mounted in bearings on the under side oi the deck. Peripheral portions of the rollers extend through apertures 95 in the deck so as to lie slightly above the deck to provide contact bearing support for a base plate 96 on the motor, said base plate being centrally apertured to accommodate king pin 92.

The motor and its pivotally associated Wheeled base, by which the motor can be transported when separated fromthe machine assembly, is detachably mounted in elevated position with respect to base 2 on the adjustably mounted supporting frame .91 consisting of parallel longitudinally extending channels t8, upright angle members 99, and angle tie members Ili, having inwardly facing flanges to receive theV wheeled base which is detachably connected therewith by the pins or bolts I Gl. The elevated supporting frame is receivable tor longitudinal adjustment between the spaced parallel angles |02 ixed to the movable support. The angles are provided with a line of apertures to receive anchor pins |03 which pass through the angles and apertures vin the channels 98f to fix the supporting frame in the :desired position of adjustment. In this arrangement, the elevated pivotal support of the motor allows automatic swinging adjustment oi the motor and flexibleshait in all of the extensive movements of the boring machine.

In the described structural organizatiom'the boring machine unit and power connections,are required tohave considerable latitude of movement to accommodate the swinging movement of the machine in intersecting planes and its re.- ciprocating movement in the channel trackway. The motor automatically. adjusts itself' angu.- larly in response to movements of the boring machine for proper application of power through the flexible drive. The wheel base for the motor alfords means of transportation when it is found necessary to dismountV the motor from its structural organization supported'by the vehicle. The machine base is illustrated in position at the rear side ofthe vehicle support. It will be obvious that this base can be shifted 90 in overlying relation to the adjacent side Vof the vehicle support.

The operation of the apparatus is as follows. The boring machine is normally carried in the retracted or transporting position shown in Fig. 2. With the positioning of the transport Vvehicle for a drilling operation, the drilling machine'is forced upwardly along the inclined surface of the base until the wheels 50 and 5I engage in the base depression. Forward .movement of the machine may be attained by tension applied'to the cable. Such forward movement by the cable is possibleuntil the sheave at the end of theisubbase engages the underside of the cable. When the machine is in the position with the wheels engaged in the base depressions, it is in the exact position to be pinned to the front end of the base by passing the/pivot pin through the sub-base frame and thefbearingsron the base. In the pinned position'the machine and its sub-base can be swung downwardly from its position inclined above the horizontal toa substantially vertical position for eiecting substantially perpendicular drilling operations. The machine automatically adjustsfitseli to a perpendicular position by means of its pivotal support on the sub-basel It can be iixed in this or an adjusted angular position by the latch bolts. VThe machine may be further anchored against a transverse swingingv movement by xing the adjustable arms 6I to the base by the through pin I I. vAdjustment of the machine fordrilling operations in inclined positions above the horizontal is obtained by removing the locking pin l| and by swinging the machine and its sub-base by the manually operated cable winding mechanism. When a desired position of adjustment is reached, the pin Il is again passed through the selectedvapertures in the supporting arm and'that in the base.l

' The boringunit is advanced or retracted in its base bythe manually loperated feed means previously described. Thisffeed means allows also for balancing the machine in adjustment operation.y When a boring operation is completed; the machine *and its sub-base'ris swung downwardly bythe cable tensioning means until the wheels againoengage the depressions in the base. In this position, the pivot pin l0 can be removed toy allow the machine and sub-base to be retracted downwardly ofthe inclined baseto the loaded Position i Y yThe structural organization provides for'controlled angle drilling alongthe highways, under existing structures and wherever points are ac#-V asgispag borngunt, provide a' largeiield of operations.

yWhile the invention has been describedin connection with the preferred embodiment thereof, itis to be understood that the words which have been used are vwordsof description rather than of limitation, and that practice of theinvention within. the scope of the appended claims, may be resorted to without departing fr qrn'thetrue scope and spirit of theinvention in all its aspects.v

I claim: i

1. In combination with a mobile carrier having a substantially horizontalfplatformsupport, a machine base xed to said support in overhanging relation at one side thereof,l an earth boring machine comprising a channel guide support and a boring unit connected therewith'for Y longitudinal movement in the channel support',

means movablebetweenia rear position on said base -and a forwardv pivotal position for supporting said machine on`said'base for .compound pivotal movementfwith respect to' sai'd base, where; by said machine =can vbe adjustedv for angular drilling operations, means including a manually operable feed mechanism for reciprocating said 4 machine 'with respect to said base in` drilling operations, and meansforfdrivingsaid machine, said driving means being soy constructed and arranged as to be self adjustable in response to movements of the boring machine.

2. In combination with a self propelled vehicle having a substantially `horizontal support, an earth boring machine pivotally mounted on said support at 'one' side thereof for vertical swinging adjustment in relationr to the support, meansfor driving said earth boring machine, and means adjustably mounting said driving means in elevated position withv respect Vto ksaid support, said last mentioned means including a pivotal connection ifor'automatic adjustment o'f said driving means`in response to movements of the boring machine. i A' V 3. In combination with' a vehiclehaving a substantially horizontal platform support, an earth boring machine, means for mounting the machine onsaid support at one side'thereof for ver.- tical swinging adjustment in relation to `said support, said means including a base iixed to said support land an intermediate base movably connected therewith means for driving said machine, and means pivotally mounting said driving means on said support inv elevated position for automatic angular adjustment in, response to movements of the boring machine.

4. In' earth boring apparatus of .the character l' described.af, horizontal supporting base, a mavangular adjustment, means for locking said machine and frame in a desired position of adjustment, and meanspivotally -mountedon a vertical axis for driving said machine, said driving means being self adjustingA in responseto movements of said machine. L. V

5., In earth boringapparatus o f Vthe character described,`a substantially horizontal base support, an intermediateframe pivotally mounted for vertical swinging movement at one end of said support, adjustable 'means forlocking gether with the reciprocatingmovement of .the` 7 57 said vframe andf support in-ajdesuirel positionjof angular adjustment, an earth boring machine pivotally connected with said frame for swinging angular adjustment thereon transversely ofthe plane of said vertical swinging movement, releasable means for locking said machine and frame in a desired position of adjustment, means for driving said machine, and means for pivotally supporting said driving means for angular adjustment in response to movements of the boring machine.

6. In earth boring apparatus of the character described, a substantially horizontal base support, an intermediate frame pivotally mounted for vertical swinging movement on said support, adjustable means for locking said frame in relation to said support in a desired position of angular adjustment, an earth boring machine pivotally connected with said frame for swinging angular adjustment thereon, releasable means for locking said machine and frame in a desired position of adjustment, a manually operated mechanism for effecting a vertical swinging motion of said frame and earth boring machine on the base support from a substantially vertical position to a position upwardly inclined with respect to said support, and driving means for said machine pivotally mounted to follow movements of the machine.

7. In combination with a vehicle support, a machine base fixed to said support, said base having spaced parallel upwardly inclined members having aligned depressions therein spaced from the ends of the members, a machine supporting base frame having spaced wheels adapted swinging of said base frame to effect an angular adjustment thereof with respect to the machine base, and adjustable means for xing said base frame in the desired position of adjustment.

8. In combination with a vehicle support, a machine base xed to said support, said base having spaced parallel upwardly inclined members having aligned depressions therein spaced from the ends of the members, a machine supporting base frame having spaced wheels adapt- 'ed to ride onsaid inclined members, connecting means including a removable pivot pin for pivotally mounting said base frame for vertical yswinging movement at one side of said machine base, said wheels and said depressions being equidistant from the pivot pin so as to engage when the wheels are swung downwardly to engage the base, manually operable means for effecting swinging of said base frame to eect an angular adjustment thereof with respect to the machine base, adjustable means for fixing said base frame in the desired position of adjustment, a boring machine pivotally connected with said base frame for lateral swinging adjustment with respect to the base frame, and releasable means on said machine and base frame for anchoring the machine in the desired position of adjustment.

9. In combination with a mobile carrier having a substantially horizontal platform support, a machine base fixed to said support having an end thereof at one side of the support, an earth boring machine comprising a channel support and a boring unit connected therewith for slidable longitudinal movement in the channel support, means supporting said boring machine on the machine base for pivotal movement at the end thereof, means for driving said machine, and means providing automatic angular adjustment of said driving means in response to movement of the boring machine.

ALAN JAY PARRISH.

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