US712887A - Centering and guiding device for deep-boring apparatus with eccentric boring-tool. - Google Patents

Description

No. 7l2.887 v Patented Nov.-4, I902. v

, J. WYCZYNSKI.

CENTERING AND GUIDING D EVICE FDR DEEP BORING APPARATUS WITH ECCENTBIC BORING TOOL.

(Application filed May 9, 1900.)

um Model.)

2 Sheets-Sheet I.

N0. 7l2,887. Patented Nov. '4, I902.

J. WYCZYNSKI. CENTERING AND GUIDING DEVICE FOR DEEP BORING APPARATUS WITH ECCENTRIC BORING TOOL.

(Application filed May 9, 1900.)

zsheetwsheet 2.

(.No Model.)

. JQ A a UNITED. STATES- PATENT OFFICE.

JOSEF WYCZYNSKI, OF TRUSKARVIEO, NEAR DROIIOBYCZ, AUSTRIA- HUNGARY.

CENTERING AND GUIDING DEVICE FOR DEEP-BORING APPARATUS WITH ECCENTRIC BORING-TOOL.

SPECIFICATION forming part of Letters Patent No. 712,887, dated November 4, 1902.

Application filed May 9, 1900 Serial No. 16,080. (No model.)

To all whont it may concern:

Be it known that I, JosEr WYczvNsKI, a

subject of the Emperor of Austria-Hungary,

residing at Truskarviec, near Drohobycz, in the Province of Galicia, in the Empire of Austria-Hungary, have invented certain new and useful Improvements in Centering and Guiding Devices for Deep-Boring Apparatus with Eccentric Boring-Tool; and I do hereby declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, ref-- orence being had to the accompanying drawing device or devices with the tool and the rod or rods connected therewith, and the provision of means for moving the movable gripping-jaws of the centering devices simultaneously, or substantially so, into engagement with the bore tube or casing.

That my invention may be fully understood, I will describe the same in detail, reference being had to the accompanying drawings, in which- Figure 1 is a fragmentary vertical sectional view of so much of a boring apparatus as will be necessary to an understanding of my invention. Fig. 1 shows a side elevation of a bore-tube, showing the boring mechanism in dotted lines, and a vertical sectional view of a cylinder for compressing a fluid through the medium of which the movable jaw of the centering device or devices is moved into engagement with the bore tube or casing. Fig. 2 is a fragmentary sectional view on line A A of Fig. 3, which latter is a section on line BB of said Fig. 2; and Fig. 4 is a part plan and part section on line B B of Fig. 2, showing the movable jaw of acentering device rctracted.

Referring to Figs. 1, 2, 3, and 4, 25 indicates the bore tube or casing, hereinafter referred to as the .bore-tube, which has its inner periphery serrated 0r corrugated circumferentially, as shown at 15, and d indicates the toolcarrier or lower section of the bore-rod carrying the boring-tool b. As shown in Fig. fl, one half of the effective or boring edge of the tool I) is of greater and the other half of less radius than the internal radius of the boretube,- so that the diameter of the bore will be slightly greater than the external diainetorof said tube, whereby the feeding down of the integral therewith, as shown, a sectoral gripping-jaw g of the same radius as the internai radius of the bore-tube and whose outer or gripping face is serrated or corrugated to engage or mesh withthe circumferential serrations or corrugations t on the inner periphery of the bore-tube t. 'Diametrically opposite the rigid jaw g the bearing a has formed thereon a sect-oral chambered member g 0 less radius than the internal radius of the bore-tube, in the chamber e of which is fitted to slide fluid-tight, or substantially so, a sectoral gripping-jaw f, whose outer face is likewise provided with serrations or corrugations adapted to engage or mesh with the serrations or corrugations t in bore-tube t. g

The chambers e in the members g of the guide and centering devices 0 are connected together by pipes h, the chamber of the uppermost centering device being connected by a pipe h with any suitable fluid-compressor or device for supplyinga fluid under pressure to said chambers. In Fig.1,'I have shown a cylinder m open at its upper end, in which works a piston q, carried by a screw-spindle o,

. tool and at the same time guiding the said' bore-rod in its rotary and vertical movements. Should it be desirable or necessary to hoist the bore-rod and centering devices out of the bore-tube t, the pressure on the jaws f can be relieved by simply-screwing the piston q in cylinder m in a reverse direction, as will be readilyunderstood, and said jaws will be automatically retracted by the springs t.

Of course anyother means may be employed for moving the jaws j into engagement with the bore-tubet by the pressure of a fluid and for relieving the pressure on said jaws.

With a view to aifording means for the ready removal of the diluting-water and the solid spoils through the bore-tube the jaws g of the centering devices have vertical pas sages formed therein, similar passages being formed along the bearing (1 by bracing or strengthening webs, which connect the rigid jaw g to the sectoral member g.

In order that the bore-rod and tool, together with the centering devices, may be hoisted out of the bore-tube 25, itis necessary that the half of said tool which is of greater. radius than the internal radius of the bore-tube be in line with the radius of the rigid jaw g, so

that when the movable jaws are retract-ed the bore-rod and centering devices may have room to move or swing laterally in the boretube, and thereby move the pointof the aforesaid half of the edge of greater radius than the inner radius of the bore-tube clear ofthe inner wall of the latter. With a view to avoid the necessity of rotating the bore-rod to bring the tool into the desired position by the means usually provided for this purpose Ihave provided means whereby this is automatically efiected whenever the bore-rod is raised sufficiently. To this end the lowermost centering device has secured to its un-. der side a sleeve or tube 70, cut away bias longitudiualky or at an angle to its axis, with the point downward, through which tubetheborerod a passes freely, and said rod is provided with a corresponding.projection Z, tapering upwardly and engaging one or the other inclined edge of the tube, whereby said rod is rotated and the tool always brought into the required position. This done, the movable gripping-jaws are relieved of pressure, and the bore-rod and guide and centering devices can be hoisted out of the bore-tube, as will be readily understood.

"mass? Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is

1. In a well or shaft boring apparatus, the comhination'with the bore tube or casing provided with an internal circumferential gripping-face and the tool-rod; of a guide and centering device comprising a guide-bearing for said rod having formed thereon a sectoral rigid gripping-jaw of the same radius as the internal radius of the gripping-face of the bore-tube, and carrying a sectoral radiallysliding gripping-jaw diametrically opposite said rigid jaw and means for moving the sliding jaw into and out of engagement with the internal gripping-face of the bore-tube, for the purpose set forth.

2. In a well or shaft boring apparatus, the

combination with the bore tube or casing provided with an internal circumferential gripping-face and the tool-rod; of a guide and centering device comprising a guide-bearing for said rod having formed thereon a sectoral rigid gripping-jaw of the same radius as the internal radius of the gripping-face of the bore-tube and carrying a sectoral radiallysliding gripping-jaw diametrically opposite said rigid jaw, means for projecting the sliding jaw into engagement with the grippingface of the bore-tube and means operating antomatically to move said jaw out of engagement' with said tube, for the purpose set forth,

3. In a well or shaft boring apparatus, the combination with the bore tube or casing provided withan internal peripheral gripping face and the tool-rod; of a guide and centerjaw of the same radius as the internal radius of the bore tube or casing and with a radiallymovable jaw working in a pressure-chamber of said bearing, and means for supplyinga fluid under pressure to said chamber to project said jaw intoengagement with the afores'aid gripping-face of the bore tube or casing, for the purposes set forth.

4. In a well or shaft boring apparatus, the combination with the bore tube or casing provided with an internal peripheral grippingface, and ithe tool-rod; of a guide and centering device comprising a bearing for the toolrod, provided with a rigid segmental grippingjaw of the same radius as the internal radius of the bore tube or casing and with a, radially.- movable jaw working in a pressure-chamber of said bearing, means for supplying a fluid under pressure to said chamber to project said jaw into engagement with the aforesaid gripping-face of the bore tube or casing and means operating automatically to retract the jaw when relieved of pressure, for the purposes set forth.

5. In a well or shaft boring apparatus, the combination with the bore tube or casing provided internally with peripheral grippingfaces, and the tool or here rod; of a plurality of guide and centering devices at different elevations, each comprising a bearing for the tool or bore rod, provided with a sectoral gripping-jaw of the same radius as the internal bearing, and means for supplying pressure simultaneously or substantially soto the several chambers to project the sliding jaws into engagement with the bore-tube, for the purposes set forth. I

6Q In a well or shaft boring apparatus, the combination with the bore tube or casing provided internally with peripheral grippingfaces, and the tool-rod; of a plurality of guide and centering devices at di'iTerent'elevations, each comprising abearing for the tool-rod, provided with a'rigid sectoral gripping-j aw of'the same radius as the internal radius of said bbre tube or casing and diametrically oppo-.

site with a radially-movable sectoral grippingv jaw working in a pressure-chamber on said bearing, pipe connections between the several ehambers,,and a pipe from the upper chamber to the surfacefor supplying fluid under pressure to the several chambers to project the movable jaws into engagement with vided with internal circumferential corrugations or screw-threads, and the tool-rod; of a guide and centering device comprising a correspondingly corrugated or threaded sectorshaped gripping-jaw of the same radius as the internal radius of said bore tube or cas-' ing and provided with an axial bearing for the tool-rod, and a similar gripping-jaw having slidingmotion in guides in said aXial hearing,

-means for moving the sliding jaw into ongagement with the gripping-face of the boretube and means operating automatically to move said sliding jaw out of engagement with said gripping-face, for the purpose set forth.

8. Ina wellor shaft boring apparatus, the combination with the bore tube or casing provided with internal circumferential grippingfaces, the tool-rod provided with a spiral rib 1,.

and lhe boring-tool having one half 01 its boring or cutting edge of less, and the other half 'of greater radius than the internal radius of said tube or casing; of a guide and centering device comprising a sector-shaped gripping,- jaw of the same radius as the, internal radius of the bore tube or casing and provided with an axial bearing for the tool-rod extended beyond said jaw and cut away on a bevel to engage the aforesaid rib l on said tool-rod, said parts so arranged that when the tool-rod is lifted one or the other-edge of the beveled portion of the bearing extension will engage the rib Z and revolve the tool-rod and position the tool with its greater radius in line with the aforesaid gripping-jaw, a second gripping-jaw having radial motion toward and from thebearingof the first-named jaw, means controllable from above ground to project the movable jaw into engagement with the gripping-face ofithe bore tube or casing,and means for automatically retracting said jaw, for the purposes set forth.

- In testimony that I claim the foregoing as

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