US547601A - Earth boring and drilling machine - Google Patents

Description

No Model.)

.W. E. E'VE-RITT.\

EARTH BORING AND DRILLING MACHINE. No. 547,6 1. Patented 001;. 8, 189 5. Fig.1 2 2? Fig.2

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I aw Attorney.

' To all whom it 72mg concern.-

NITED STATES PATENT OFFICE.

WALTER E. FVERITT, OF BUFFALO, NEW YORK.

EARTH BORING A ND DRlLLlNG MACHlNE.

SPECIFICATION forming part of Letters Patent No. 547,601, dated October 8, 18 95. v

Application filed August 2,1894.

Be it known that l, WALTER E. Evnmrna citizen of the United'Statcs, residing in Buf falo, in the county of Erie and State of New York, have invented certain new and useful Improvements in Earth Boring and Drilling Machines. of which thefollowing is a specification.

My invention relates to an improved machine for boringlongdistauces into the earth at any desired angle, or under a street-pavement, or for other purposes for which it may be adapted, and it will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of the machine complete, a vertical longitudinalsection being cut through the base in or about line aa, Fig. 4. Fig. 2 is a detached front elevation of the ratchet-gear and removable arm and ratchet-pawl for operating it. Fig. 3 is a top plan view of the machine complete, showing the upper half of the screw-bar supportingbox open. Fig.4 is a vertical transverse sec tion in or about line 17b, Fig. 1, cutting through the base and showing a front elevation of the rear vertical supporting frame-piece. Fig. 5 is a detached front elevation of the intermittingly-operating gear. Fig. 6 is an enlarged rear end view of one of the anger-bars, all parts beyond the socket being omitted, showing the open end ofthe bar and substantially its form. Fig. 7 represents a,vertical crossscction through the base of the machinein or, about line 0 c, Fig. 1, showing a'front eleva-. tion of the forward vertical supporting framepiece, the gearing and other'parts being omitted. Fig. 8 is a side elevation, of one of the auger-bars, showing a portion of another -bar connected thereto.

Referring to said drawings in detail, 1 rep: resents the base of the machine. It is .preferably constructed-0f iron and is provided with araised portion extending lengthwise at each side 2 and 2.

half-round iron 6, secured with its fiat face On the top of. the' raised portions 2 and 2 is secured bybol'tsfi a flat strip 4, thereby leaving a groove 5 in,

SerialNo. 519353. (No model.)

' down on the base by bolts or other wellknown means, the use of which will appear farther on.

Theupright-frame pieces Tand S are preferably made of wrought-iron, but any wellknown suitable material may be used. The

rear frame 7 is provided with two elongated openings 9 and 10 and with two laterallyprojecting foot-pieces 11, which project into the slideways 5 to support it in a vertical position and allow it to slide freely therein.

Near the base of the frame-piece 7 is pivoted a roller 12, which rests on the top of the half-round bar 6 and travels back and forth with the frame piece 7. The vertical front frame-piece 8 is also provided with laterallyextendingfeet 11, adapted to move in the slideways 5, and with a pivoted roller 12, resting and partly supporting the frame on the half-round bar 6. Both rollers areeach pivoted by a bolt 13,.orr which they turn easily. The object of the half-round bar 6 or raised portion' is toprovide an elevated narrow portion for the wheels 12 to travel on, and thereby avoid'the dirt or gravel which may get upon the platform.

The two framepieces 7 and S are connected I upper end and an enlarged head 22 (shown by dotted lines) at its lower end and secured in place to the box 15 by a plate 23, (see Fig. f7,).sfo ,tha.t whileit is free to turn it cannot draw away from the box. This construction enablesthe operator to raise or lower all of the ,boxesi15, 16, and17 at the same time by turning the hand-wheel 21. The screw-bar 2% is mountedin the box 17 in the frame 8,

and its-rearend passes through the hole 10 in the frame 7. The screw-threaded portion 24 of the bar 2a extends from the point 25 to the collar 26. At or near the forward end of; the base 1 is rigidly secured an .upright supporting-piece 26", in the upper end of which is mounted a sleeve formed in two halves 27 and 27 and adapted to have a slight longitudinal movement thereon, and is The interior of the sleeve 27 27 held with a yielding force by a rubberspring orcushion, also made in two halves 28 and 28. The upper half of the sleeve and its rubber half piece 28 is mounted in a cover 28, pivoted to the top of the supporting-piece 26 by a pin 29, and is kept from falling out of said cover 28 by the small flat pieces 29, which allow it to move longitudinally in said cover. '(See Fig. 3) When closed, the cover 28 is kept closed by a thumb-screw 30. (See Fig. 1.) is provided with a screw thread 31, adapted to fit the screw-thread 24". Near the rear end of the screw-bar 24 is rigidly secured a collar 32, and between the collar ber spring or cushion .33.

On the screw-bar 24 is rigidly secured a gear-wheel 34, and above the screw-bar is mounted in the box 16 of the frame 8 and'in the opening, 9 of the frame 7 a shaft 35, on which is a feather 35", and on this shaft 35 is mounted a gear-wheel 36, adapted to gear in with the wheel 34. At the rear of the gearwheel 36, and rigidly secured to or formed in one piece with it, is a mutilated gear-wheel 37.

, A stud 38 is secured to or forms a part of the box 15. On the'stud 3Sisloosely mounted a pinion 40, adapted to gear in witha gearwheel 41, mounted on the front end of the shaft 35, and to the pinion 40 is rigidly secured a crank and handle 42, by which the machine is operated.

To the top of the rear frame '7is pivoted by apin 43 the handle 44 of a hammer 45, having a forwardly-projecting bracket carrying a friction-roller 46. (See Fig. 1.

At the end of the shaft 35 is rigidly secured by a set-screw 35 (that can be easily loosened when, required) a propeller-shaped double cam, the inclined sides of the blades 48 of which, as they pass the friction-roller 46 during' their rotation, impart a reciprocating swinging motion to the hammer 45, which strikes the end 48 of the screw-bar 24, so as to drive the drill forward by a blow from the hammer when drilling through rock.

In Fig. 8 I have shown one'of the augerbars (the one having the drill at the end) as attached to a portion of one of the intermediate bars. The intermediate bars are each provided with a socket 49 atits rearend and a reduced slightly tapering projection or tongue 50 at its forward end adapted to fitin the socket 49 and is rigidly secured by apin or screw-bolt 51. The socket 49 50 are made as fiat as possible consistent-with the required strength, so as to interfere as little as possible with the'eonti screw form of the auger-bar.

The sockets 49, cut in the ends of the augerbars, conform to the spiral form of the angerbar, and as the tongues are made in substantially the same spiral form the insertion of thetongues intothe' sockets is done by giving the auger-bar having the socketediend a partial turn and then securing the two augerbars together with the pin or screw-bolt 51.

32 and the box'17 is a rub-' tnittcd to the gear-wheels 4t and 41, and from an dton guenuity of the' From this curved form of the sockets and tongues the anger-bars are securely locked to each other during the rotating of the said auger-bars in the direction used while hering. When the direction of the revolution can easily be separated by removing the pin or screw-bolt 51 and withdrawing the tongue from the socket.

If desired, the intermediate auger-bars may be plain tubes of ordinary gas-pipe; but for many uscs'the form shown in Fig. 6 answers a'good purpose.

The operation 'ofthe machine is as follows: By turning the crank 42 its motion is transthe gear-wheels 36 or 37 motion is given to the gear-wheel 34 and from that to the screwbar 24, thereby operating the drill. The screw-bar being in gear with the screw-thread edybox or sleeve 27 27 causes the drill to move forward and draw the carriage or supportingframe and its several parts along at the same time. \Vhen the full length of the auger-bar or nearly its full-length has advanced into the earth, the pin or thumbscrew 30 is removed, the upper portion 27,of'the screw-sleeve is opened, the hand-wheel 21 is then turned, so as to lift the screw-bar above the screw-threaded portion 31 sufficiently to allow the'supporting-framc to be pushed back far enough to allow another length of auger-. bar to be put on. The operation is then repeated. During the above operation the setscrew 35 has been loosened to allow the shaft 35 toturn freely without turning the cam. The hammer, therefore, does not operate in this instance; but when drilling through rock or shale it is sometimes desirable to use the hammer, which is done bytightening the setscrew 35, and thereby bringing the cam into action. \Vhen boring through soft earth, the wheel 36 may be brought into gear with the wheel 34 byloosening the set-screw.'-t7 and moving'it suflicie'ntly to'one side to bring its teeth in gear with the teeth insaid wheel and then tightening the set-screw 47. When the rock is .too hardfor the's'peed of the augeubar, the set-screw 47 is loosened and the gears 36 and 37 are moved along the shaft 35 until the mutilated gear 87 comes into gear with the wheel 34. The set-screw 47 is' then tightened. The screw-bar is then only moved intermittingly, the device being timed so -that the blow of the hammer is struck during each intermission. In Fig. 1 I have-illustrated this. position of the gear-wheels, showing the teeth of the gear-wheel 34 in engagement with one of the series of teeth on the mutilated gear-wheel 37 and adapted to turn gear-wheels bring .oue of the non-teeth-bearing faces of the mutilated gear into the posi-' tion substantially as shown in Fig. 5, when the screw-bar 27 ceasesto turn and will not again revolve until the next series of teeth on the mutilated gear are brought into en the screw-bar 24 until the revolution of the of the screw-bar is'reversed, the auger-bars the twof'portiohso f the, sleeve, the upper por-.

gagement with the gear-w eel 34. This operation is repeated during'th revolution of the screw-bar 2r while the gears34 and 37 are in engagement, thus; giving an intermittent movement to the sc1'cw-bar."The base 1 is pivoted to a fratne'52 (see Fig. 1) and is made adjustable by means of screws 53. The object of this construction is to provide the means for ad'justingjtheboringstool to any an gle it may be'desired to bore into the earth. The force of, the blow from the hammer may be increased by means of a spring54.

Tln Fig. 2 I have shown ,a front view of the gear-wheel 41. The shaft 35, on which the gear-wheel 41 is secured, projects out far enough to receive anarrn or lever 55, having a pawl 56 loosely pivoted thereto. The lever is rmovably secured'to the-shaft 35 by means ofja pin 57.. The object of this construction is that when from the nature of the .earth'or rock more power is'required to operate the machine the handle 42 is "removed and the arm 55 is put on, substantially as shownin Fig. 2, and used,-whioh construction gives the operator a lohger lever to work with.

' I claiinas m invention- 21.. In an earth boring; machine, thecombination with the screw bahthe pivoted hammer, and its operating m ejchanisrii' of two rub} ber cushions, one secured between the collar and box located i' ear the rear end of'the screw bar and theother made in two halves with tion of which is mounted in a cover pivoted to the t'opo'f the iupright supporting piece,

. substantially as described.

2; In an earth boring machine, the combinatron ofhammer, pivotallysecured to the frame,'a double cam for operating said hammer-,.a'combined-gear wheel and mutilated gear wheel; secured together so. as to. be adjusted simultaneously, and mounted on a shaft,-means f or preventing them from turning said shaft, and means for bringing and, securing one or the other gear intogear with a wheel-mou'nted'on the screw bar, forope'r atlng the said'screw bar either intermittently or continuously, substantially as, described."

3. loan earth boring machine, the combination of the hammer 45, pivotally secured to the f rja me, propellershaped cam for actuat ng the hammer, a combined gear wheel and. mut lated gear= wheel secured together so as to be adjusted simultaneously, andmounted on a sha'ft35, means-for preventing them from turning or said shaft, -and means for 'bring 'l ing and securing one or the othergea'r into gear with the'wheel 34, for operating the screw.

bar either intermittently orcontinuously,substantial'ly as described. h

4. In an earth boring machine, the combination with the platform, of two'parallel upright frame pieces, one'of said frame pieces being provided with elongated openings orfslots,

and the'other with adjustable boxes, adapted to support the rear end of the screw bar, a standard, a' box composed of two portions 27 and 27*,for securing the forward endof the said boxes together'and a screw threaded portion secured at its'lower end to the upper box so as to be capable of revolving back and forth, and ahand wheel on its upper end for turning the same, whereby when the cover 27, is opened the boxes in which the gear wheel shafts and screw bar are mounted may be raised npwardand the screw bar'rcleased from the screw sleeve 27, so that the carriages may he moved back in position to add another length of anger bar,subst antially as described. 5. In an earth boring machine, the combination with the,platform of two upright frame pieces, slots cut in one of said frame pieces, and boxes mounted in the other,- and the rear end of' the screw bar mounted insaid slots andboxes, a standard, a box composed of two hinged portions for securing the forward end of the-"screw bar, means for fastening said box portionsttogether and devices for'raising the-screw bar and its operating mechanism upwardian'd'releasing the said screw bar from the. screw ;sleeve', when the hinged box is open; asset forth. i 4 6.'Iri an;earthboring machine, the combina- I tioniiof' a vhammer pivotally secured tothe frame-ta" combined gear wheel and mutilated "ajshaft, means for preventing them from'turngear wheel or the-mutilated gear wheel into engagement with a gear wheel mounted'on theiscre'w b'ar, for operating the screw bar either-intermittently or continuously and devices for operating the hammer,flwhile the screw bar isrevolving intermittently as and for thepurposes'described.

7 m an earth borin'g machine, the combinati'onlwith the frameand the upright frame piecesthereof, of a hammer pivoted to one of said; frame pieces, a, shaft, a. double cam mounted on said shaft for operating said hammer, afcombin'ed gear wheel and mutilated gear wheel, also mounted on the said shaft, means; for. rotating the shaft, and means whereby e-i-ther the gearvwheel 'or the mutis latedgear wheel can be brought into contact and thus-allow the screw bar toremain quiet in the'intervals between'the said strokes while-the fh'ammerjis operating, or rotate con-v v. WALTER EVERITT. Witnesses: 3 JAMES SANGSTER,

l ARTHUR J SANGSTER.

screw bar, and the shafts upon which the gear wheels are mounted, means for connecting ingon said shaft, means for bringingthe said during the strokes of'the hammer and rotate 7 gear wheel secured together and mounted on withfagear wheel mounted on the screw bar,

,tinuouslywhile the hammerjs passive, sub: staintiallv as described.

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