US1003334A - Boring apparatus. - Google Patents

Description

C. CANTILLI.

BORING APPARATUS.

APPLIOATION FILED NOV. 19, 1909.

1,003,334, Pa en ed Sept. 12,1911.

Fig/t 16 54, F651. 4

UNITED sfrarns UQNSTANTIN GAIUTILLI, 0F BUCHAREST, ROUMANIA.

BORING APPARATUS.

ooaesa.

Specification of-Letters Patent.

Patented Sept. 12, 1911.

application filed November 19, 1909. Serial No. 528,922.

To all t m it may concern:

Be it 1 iown that I, GoNsrAN'rIN CAN'rILLI, a citizen of the Kingdom of Roumania, residing at Bucharest, Roumania, have invented certain new and useful Improvements in Boring Apparatus, of which the following is a full, clear, and exact description.

My invention. refers to an apparatus for effecting borings ofany dimensions and at any depth, whatever may be the nature of the ground. One of the principal features of the invention consists in the arrangement of the motor driving the tools as well as in the arrangement of the apparatus itself so that it accompanies the tool or tools in their ascending or descending movements as the Work progresses. Advantage has also been taken of centrifugal force for increasing the area worked on or rendering it larger than the boring tube itself, while at the same time permitting the said tools to pass through the latter.

I shall now describe my invention with reference to the accompanying drawing showing one form. of construction of the present apparatus, in which Figure 1 is a vertical section. along the axis of the apparatus. Fig. 2 is a detail of one of the tools. Fig. 3 an elevation of the tool s ft and a disk carried thereby. Fig. 4 is a View of the tool shown in Fig. 2 loolo ing at right angles thereto. Fig. 5 is a view of the parts shown in Fig. 3 with the cutters mounted. in the disk. Fig. 6 is an elevation of the shaft and a disk or plate with a plurality of different forms of tools. Fig. 7 is an elevation with a portion broken away showing the tubular casing. Fig. 8 is a horizontal section on the line A-A of Fig. 1. Fig. 9 is a, plan of one of the tool car-- riers.

The apparatus consists of a metal tube a the upper part of which terminates in an arch connected by a neck (Z with a ball 0 provided with a ring 6. The lower part of the tube a-is threaded at An electric motor 9 is situated at the interior of the tube a and is held in position by screws h; the current is supplied to the motor through a wire i passing through a screw plug 6 in the arch F). A plate a closes the tube at its lower portion just above the screw thread f and is held in position by screws a An opening formed in the center-of the plate a per mits the passage of the shaft 9 of the motor, which latter is completely incloscd in the tube a and thus well protected against the penetration of foreign bodies which might eventually interfere with its working. The tubular part j is screwed to the tube a at f and is of cylindrical shape throughout almost the whole of its length .but is slightly enlarged bell-shape at its lower end 3'". A door is formed in the walls of the tube j and turnson two or more hinges 70 The door is held closed at 7: 70 by means of a lock 76% A hearing Z is arranged in a support Z situated Within the tube j. The support Z is held in position by screws or rivets Z The tool carrier or borer properly speaking is shown separately in Figs. 3, 5, 6 and rind consists of a shaft m provided with a coupling sleeve m by means of which it can be fixed to the shaft 9 of the motor by tightening up screws m m. A plate or disk n shown in plan view in Fig. 9 is provided with holes n n and slots 12 for fitting the actual borer and four cutters. The central opening 11, is for borers, openings 71. are for the cutters p (Figs. 2 and 4) and the slots 11. for the cutters y shown in Fig.6. j is a short section of the well casing surrounding the tubular part j, see Fig. 1. The tools 0 and. p are rigidly fitted to the plate 77. whoreas the two cutters 1 g are mounted so as to pivot on the pins which pass through the holes Q3 in the cutters g Q and also through the openings 9 of the plate a. This method of mounting the cutter q q is for the purpose of enabling the latter to work on a larger surface than that of the apparatus and the boring tube, so to allow the lattor to permit theytools to be easily introduced into the boring tube. Figs. 5 and 6 give the projection of the surfaces acted on by the tools. A spirally arranged member such as a wire or rod 1- is arranged aroundthe shaft m and serves as guide when mounting or unmounting the same and also serves to assure the raising up of the materials removed by the tools.

The apparatus works in the following manner: The apparatus is suspended, by a cable preferably a metallic cable, by its ring 6. The cable passes over the pulley arran 'ed at the to 3 of the borin tower scaf' b b 3 folding or the like and preferably driven by means of some suitable motor force. Near at hand'is arranged the arrival of the current, the switch board and other apparatus necessary for the use of electric cur forces its cutters and borers into the ground,

retaining its vertical position. Then the current driving the motor is switched on thus causing the borer to rotate. The earth or materials broken up by the borer and cutters are raised by meansof thespiral a r ranged around the shaft of the borer. When the apparatus has descended a certain dis-- tance'the borer will be filledwith earth, the current is then switched off and the appa ratus withdrawn; then by means of the door is the earth or other material contained in the apparatus is removed. If the borer and the motorare hot, another apparatus will be placed in the boring hole and two apparatus will thus be used alternately. hen boring in a layer of very hard stone the cutters are removed and only the plate is used which is fitted to the shaft instead of the borer and is provided with diamonds; after having worked for example for a depth of about 20, centimeters the inner cuttors are added to the apparatus and again a depth of about 20 centimeters cut through, then the two other pivoting cutters are fitted to the apparatus and again 20 centimeters cut through, all these cutters being provided with diamonds. Inasmuch as it is not possible to bore into stone for any length of time without stopping and as furthermore the layer removed by the diamonds is not thick enough to reach to the spirally arranged vertically disposed wire or the like, the borer with the cutters is removed and the apparatus provided with an ordinary tubular borer such as is used when boring by hand to remove the mud; but it should be of the same diameter-as the bore, because care will always be taken to have a certain amount of water in the boring hole so as to prevent the too rapid heat'ng ot. the borer as well as the explosions that might result owing to the presence of gas; so that the apparatus will withdraw the broken residues of stonetogether with the ivatcr. When a new column of tubes are introduced into the boring hole for well known reasons when boring and the diameter of the boring hole is reduced another apparatus of the re quired dimensions will be employed.

Having thus described my invention, what I clann is:

In an apparatus for the purpose described, a tubular part having bell-shaped lower end, a tube screwed into the upper end of the same and having a closed upper end with suspending means, a motor within said tube, a plate separating the tube and tubular part, a motor shaft extended through said plate, a support within the tubular part having a bearing for said motor shaft, a tool holder carried by said shaft and-a spirally arranged vertically disposed member within said tubular part above its bell-shaped end and secured to said support within the tubular-part, said spirally arranged member serving as a guide in assembling the parts and as a means for raising the material removed by the tools.

In testimony whereof I aflix my signature in presence of two witnesses.

GONSTANTIN CANTILLI. \Vitnesses A. Rosnnsrnm,

J. I'IAFFNER.

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