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Publication numberUS1661672 A
Publication typeGrant
Publication dateMar 6, 1928
Filing dateSep 3, 1927
Priority dateSep 3, 1927
Publication numberUS 1661672 A, US 1661672A, US-A-1661672, US1661672 A, US1661672A
InventorsMorrison Edgar H
Original AssigneeMorrison Edgar H
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for hydraulic drilling
US 1661672 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 6, 1928.


Patented Mar. 6, 1928.



Application filed September 8, 1927. Serial No. 217,419.

The present invention relates to hydraulic boring preliminary to driving piles in the ground for building construction.

In ordinary boring of this kind, considcrable ditiiculty is experienced in removing the loosened soil, particularly in very hard ground where the bored hole becomes barely larger than the diameter of the boring tool.

The present invention now aims at overcoming this disadvantage and to increase considerably the speed of boring at a rate of at least four to one as compared with old methods and the same kind of soil.

In order to accomplish this, a central boring tube similar to others of this kind and having a tapered nozzle atits lower end, is provided with number of downwardly directed auxiliary pipes .or hollow lingers, setat an inclination to the axis of the main tube and aside from the central nozzle openings both of the main and the auxiliary tubing, side slits are also provided, and all of them in such a manner that radial spray of water or cutting fan-shape jets .will be supplied in addition to the axial jets of each of the pipes. In this manner the soil will be loosened to a considerably greater diameter than that of the main tube, which will considerably increase the facility of the removal of the soil.

In a modified form of this invention, the main tubing fits in a core provided in a cast pile, and the nozzle and end thereof is made in the shape of a shoe which separates from the tubing and remains in the ground with the concrete pile.

In the accompanying drawing, the preferred form of the invention is illustrated, and

F ig. 1 shows a fragmentary section of the boring tube with its auxiliary tubular fingers;

Fig. 2 a transverse section along line .2-2 of Fig. 1; i

Fig. 3 is a partial vertical section showing the combination of a cast concrete pile with the boring tube, and

Fig. 4 a transverse section along line 4-4 of Fig. 3.

Reference numeral 10 in the figures represents the main boring tube, which is tapered at its lower end to form a central nozzle 11. Part way up the tapered portion, longitudinal slits 12 are provided for a purpose which will be presently described. These slits are here shown to be four in number, but any other number equally spaced circumferentially may be selected. i

The nain boring tube has several tubular fingers l3 diverging therefrom and of preferably the same number as the slits 12 and placed in alternate positions therewitlnthat is to say In this case they are shown 90 apart and placed midway between each two slits. Their lowerends'are tapered asthe main tube to form auxiliary nozzles 14 which termmate a little short or the main nozzle 11. Similar to the latter, the tubular fingers are also provided with longitudinal slits 15, which, however, point inwardly, that" is to say against the outer surface of the main nozzle and in radial planes thereon The operation of this boring orexcavati-ng tool is as follows: i Y The nozzle 11 oii the main tube is first placed on the ground where the boring is to take place. lVith water under high pressure forced down the main tube 10,41 central jet Wlll then shoot down vertically from this nozzle. Simultaneously sheets of fine spray or fan shape cutting jets are forced through the slits 12 between the tubular fingers 13, while other sheets of spray are expelledifrom the said fingers through their slits 15, but in opposlte direction, that is, inwardly, while the first ones flow outwardly. V

. D verging from the axisof'the maintube auxiliary jets of water are also forced out through the nozzles 14 of-the tubular fingers. Witlrthis boring tube as here described, there will accordingly be five downwardly directed jets of water forced out therefrom,

' and eight sheets of radial spray or fan shape cutting jets, of which four alternate ones are directed outwardly and four inwardly.

It will now be evident that as soon as the tool begins to penetrate the ground and forms a boring therein, the loosened soil mixed with water will start upwardly around the outer surface of the main tube allowing entire jet to be lowered. It will also be clear that, on account of the spreading of the tubular fingers, the cross-section of the boring will be greatly enlarged as compared with What was the case with old methods of ex cavating'with single pipe nozzle jets. This will also be augmented by the inward and outward side-spray or side fan shape jets from the slits 12 and 15, which will tend to dissolve any hard lumps of soil, allowing lingers to go down.

lv'hen sullicient depth of the bored hole ias been obtained, the tool is lifted out and the hole is ready to receive the pile.

In Figs. a and of the drawingrythe method and arrangement of driving a con crete or other pile down in the ground with the tool, the latter is built as before with a main nozzle 11, tubular diverging fingers 13 and side slits 12 and 15 furnished in the respective nozzles.

In this case, however, it preferable to build the tool in the form of a shoe for the concrete pile 17, which has been previously cast and provided with core running throughout its entire length. A shoe plate 19 now provided at the upper end of the tool and upon which the pile rests; and reinforcing flanges 20 may be furnished connecting the shoe plate with the tubular tingers 13. The central pipe is in this case detachable from the shoe and stands on the plate 19, when inserted in the core 18 of the pile.

The operation is here identical with the description earlier given, the only difference being that the concrete pile goes down with the shoe, while the latter remains in the ground with the pile after finished operation, when the central pipe 21 may be removed from the core.

The essential purpose and function of the fan-shaped jets is to displace or remove the earth between the center and outside jets which would otherwise accumulate and prevent the lowering of the device into the earth. It is understood, of course, that in the operation of this device the earth is cut away and removed, thus making an opening of appreciably greater diameter than the apparatus in its progress into the soil.

Another purpose of the invention is in connection with fire-extinguishing apparatus. In this utility, the nozzle on the end of an ordinary the hose would project a main or central stream and a plurality of spreading streams and spra vJ- thereby covering a greater area. of fire to be extine [shed than could ordinarily he accon'i 'ilished with tire hose having but a single stream.

It is to be understood that the details of construction and arrangena-nt of parts may be varied widely without departing from the spirit of the invention, and the invention is accordingly not to be limited to such teatures except as may he required by the claims.

I claim:

1. A hydraulic wicavatiirgj tool tor structural piles, (tUllllJllSlfiQ a head having a main nozzle and a plurality ol. auxiliary nozzles equally spaced circumt'erentially on the main nozzle. said nozzles beixur provided with longitiulinal slits, positioned in radial planes of the respective nozzles.

2. A hydraulic excavating tool for structural pile-t. min mising a head havin; a main nozzle and a plurality of auxiliary nozzles on the main nozzle and diverging in radial planes ther'ol', said nozzles hcin; provided with longitudinal slits, the slits in the auxiliary nozzles being 'iositioned in said planes to taco the side. .wall of the main nozzle, and the slits in the main nozzle being positioned in others of such radial planes ljictwcen said auxiliary lingers.

3. A hydraulic excavating tool for rtructural piles comprising a head having a main nozzle and a plurality of auxilary, diverging nozzles. situated in radial planes of the main nozzle, said nozzles being provided with longitudinal. slits, the slits in the auxiliary nozzles being positioned in said radial planes to face the side wall of the main nozzle. and the slits in the main nozzle being positioned in others of such radial planes; ht? tween said auxiliary fingers; said head helIlQ adapted to form a shoe for a pile.

In witness whereof, I have hereunto set my hand at Washington D. C.

EDGAR ll. M fllt ll 1.5? (l X.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3112800 *Aug 28, 1959Dec 3, 1963Phillips Petroleum CoMethod of drilling with high velocity jet cutter rock bit
US3331456 *Nov 13, 1964Jul 18, 1967Halliburton CoApparatus for straightening large diameter holes by fluid erosion
US3384192 *Dec 27, 1965May 21, 1968Gulf Research Development CoHydraulic jet bit
US3402780 *Dec 27, 1965Sep 24, 1968Gulf Research Development CoHydraulic jet drilling method
US3455515 *Dec 16, 1966Jul 15, 1969Coyne Cylinder CoFluid drilling process and apparatus
US3924698 *Apr 8, 1974Dec 9, 1975Gulf Research Development CoDrill bit and method of drilling
US4119160 *Jan 31, 1977Oct 10, 1978The Curators Of The University Of MissouriMethod and apparatus for water jet drilling of rock
US4221271 *Apr 10, 1978Sep 9, 1980The Curators Of The University Of MissouriWater jet cutting nozzle transition section
US5769164 *Jan 14, 1997Jun 23, 1998Archer; Larry DeanWellbore cleaning tool
US6189618Apr 20, 1998Feb 20, 2001Weatherford/Lamb, Inc.Wellbore wash nozzle system
US6825099Jun 25, 2002Nov 30, 2004Canon Kabushiki KaishaMethod and apparatus for separating member
US6852187 *Jun 25, 2002Feb 8, 2005Canon Kabushiki KaishaMethod and apparatus for separating member
US6946046Sep 21, 2004Sep 20, 2005Canon Kabushiki KaishaMethod and apparatus for separating member
US20030010445 *Jun 25, 2002Jan 16, 2003Kazutaka YanagitaMethod and apparatus for separating member
US20050034821 *Sep 21, 2004Feb 17, 2005Canon Kabushiki KaishaMethod and apparatus for separating member
DE1136283B *May 5, 1956Sep 6, 1962Andreas StihlErdbohrgeraet zum Herstellen von Bohrloechern fuer den Grundbau, von Pflanzloechern od. dgl.
WO2014148916A1 *Mar 18, 2014Sep 25, 2014Jarala AsSubsea device for sediment removal
U.S. Classification175/424, 37/344, 405/248, 175/67
International ClassificationE21B7/18
Cooperative ClassificationE21B7/18
European ClassificationE21B7/18