US1671528A - Pipe cutter - Google Patents

Description

May 29, 1928.

S. J. HUTCHISON PIPE CUTTER Filed May 5, 1927 4O vat-ion showing the position ofthe tube ber the above mentioned character, which may Patented May ZS, 19 28.

- STANTON J. no'ronrson, .or- Anson, Kansas. .3

' mamavg a Application filed Ma 3,1927. s ri l no. isafaaej,"

The present invention relates to improvemerits in pipe cutters and has'reference'more' pa"rticularly to a tool' for use in cutting ofi alwell' pipe, while embedded in the ground.

YOneo't' the importantobjects ofthe' present invention isto provide a pipe cutter of be 'readily and easily inserted. within the well pipe within the ground, meansbeing' provided for forcing the cutter carried on I the lower] end portion oi avertical rod," I "whose lower end engages the bottom of the well,""into the side of, the lower portion of the pipe; ac'lditional means i being provided whereby said rod? an'd'the aforementioned means may be rotated as a unit, to'cut oil the pipe ata point'adjacent its lowerend. "A further and important objectoii'the in- 'vention is to providea pipe cutter voflth'e abdve"mentioned character which is's'im l'e in construction,' strong and durable and iur-.

ther well adapted for'the' purpose for which it is designed.

dOther ob'ects and advantages of the in} vention will become apparent during t-hecourse of the iollowingdetailed description.

In the accompanying drawing 'Figure l'is aside elevation of the pipe cutter'embodying my invention showing the ending tube in itslowermost P05111011, Figure 2 is; a vertical sectional view through the tube, disclosing the position of the cutter after the tube has been forced downwardly on the rod to its lowermost position. f, i

Figure .3 is a transverse section, taken approximately on the line 3-3 of Figure 2,

showing 'the cutting element forced through the side'o't' the pipe, and

V Figure 4 is a fragmentarydetail side elefore thesame is forced downwardly on' the bodiment of my invention, the numeral .1

designates generally my improved pipevcut- .ter, the same comprising an elongated solid stem or rod 2. A pair of spaced laterally disposed lugs 3"and tare formed on the side of-therod adjacent its lower end and extending through suitable registering openings providedtherefor in these lugs is the pintle 5 on which i's 'rotatably the cutting element 6." This "ciitting memberis, 'dlsposed'betwe'en the opposed faces of the spaced lugs '3 and 4 in themanner as more clearly shown in Figure :The cuttingjedge of this cutting member. extends beyond the outer ends of 1 the lugsand the manner inf which this cutting member operates will be H hereinafter moreffully describedl, Slidalole loosely" overtheelongated rod2 is the elongated tube 7 J The u perend of this tube isexternally threaded to receive a coupling 8, whereby the samemay be con nected t'o'the lower end of a drillrodfnot shownfand which drill rod'provides the operating means for actuating the tool. eccentricbea'ring 9 re formed on one sldepf the elongated tube 7 at the lower end:,there'-" .of' and"thisbearing isdisposed at a point diametrically opposite the cutterfelement 6 p in the manner "as clearly i'shown in Figure '3.

For u purpos'e of prei'lenting,thej rotation of the elongated tube '7, with respect to the extending slot 10, in the intermediate p rrod or stem 2. 1 I provide a longitudinally tion of this tube, and this slot .is formed on the same side astliat on which the'beariing 9 is arranged; Operable within this slot the pin '11, which" extends laterally: from the upperfend portion of'the elongated rod 2, and this pin and gslo-t structure is clearly shown in Figure" 2 ofthe drawings;

In use, the elongated rod is inserted down-5 wardlyi within the 'well pipe ,A soithat the rod is'canteld, it being'under'stood of course that the diameterof the rod is materially less thanthe inner diameter 01 the tube so asto permit a canting movement'of the rod with respect to the tube. Theflojwer 'endof this rod will rest uponthe bottom "of the well in a manner as shown in Figure lg When in this position, the cutting edge "of the cutting. member will be out; of en'gagement with ,the side r the-welhpipe; The tube 7 is initially in its raised position 'as shown clearly in Figure 4, and when this'tube is moved downwardly, it will beobserved that the eccentric bearing '9 will cooperate with the adjacentface of therod and the adja r05, cent inner face of the well pipe to force the rod to a vertical position and simultaneously'move the lower end of the rodtoward i the opposite side of the pipe and simultaneously move the cutting edge of the cutting member into the side of the pipe. When the bearing 9 is disposed directly above the lug slidable over the rd,.aI1 eccentric bearing car- 3, and the tube 'i-isgat its lowermost, position,

' 'gagement with the, pipes. This; operation willresult" the well pipe A bei'ng'cut off ata oint adjacent its lower end so that the major'fportmn of the wellf pipe may be read y nd easily re'InO ed from thewell. l After the pipe has been cut off, the tool maybe poses: 01? which it is desired. t

readily removed from the well piper e i It, will thusbe seen from the foregoing descriptionth'at I have provided a pipe cut tingtool particularly adapted for use in cutting olf well pipes embedded in theg-round and due to its simplicity, my device 'may be readily and easily set up inpo sition for, use, andfurthermore will," at all times, be

positive andefiicient in carrying outthe pur- YVhileI have'- sliown theepreferi ed em bodiment of my invention, it'is to be under st'ood that various changes in-the size, shape and arrangement ;of parts may be "resorted to, without departing from the spirit of the v inventionf or the f scope, of the appended j g I i endsof the lu'g s, the 'cuttinged'geof said la ms, hat. I claim is;

ass gned a adapted 'to be initially disposed inla canted position in a wellpipe'an'd hfiivingits lower endengaging the bottom of the well, a cutting member. supported on the side'of the rodladjacent its lower end, a tube ri ed by the lower end jof'the tube'and' adapted fto, engage the well pipe at a'point diametrically ofipfl itesaid cufting member, the

latter being adapted to cut throughthe pipe when the tiibe has been moved downwardly on the rod to itslowerinost position, the low er POItiOIL IE the 'rod 'being forced to a t ue vertical positionby theaction of' the beariiig engaging the inner wall of the tube and the lower edge of said tube-sliding alongvthe rod',,and-1 neans whereby the tubeiand the rod may be rotated as a' unit for cutting oif; the

wi l p p 2.YA well cutting tool comprising 1. A wellpipe cutting tooly clomprising an posed in a cantedposition in a wellpipe and having its lower end engaging "the bottom of the wall, a cuttingjmember supported on i the side of therod adjacent its lowerend,

'a tubeslidable over the rod, an eccentric f bearing carried'by the lower end of the tube andadapted It g the W611 oint diametrically oppo t l vQuaint:

member, the latter being adapted to "cut,

throughc the pipe when thejtub'e: has been moved downwardly on the rod to its lowermO'st position, the lower portion of the rod being iorced ;to a true vertical positionby the action of the'bearing engag ng the inner wall of the' tube and the lower edge ofsai'd tube sliding along the rod, means whereby thetube and the'rod; may be rotated as a unitffor cutting off the well pipe, said means comprising a pin extending laterally. from the upperlend of the rod, the tube being formed with alongitudinally extending slot V in which said pin is operable.

3"; A well pipe cutting tool comprising an I elongated rod adapted to be initially disso poS'edin-a canted position in a well pipe and having its lower end engaging the bottom of the well, a pair of spaced laterally disposed lugs formed on one side of the rod adjacent its lower end, a rotatable cutting member supported between the lugs and having its cutting edge protruding beyond the outer cutting member being disposed inwardly of the adjacent side of tlie'welljpipe when the rod is in its aforementioned position,- an elongated tubeshdable over the rodflan eccentric bearing carried by the lower end-of I I the-tube and adapted to engage the inner wal'ljof the pipe ata point diametrically opposit'efsaid cutting member, said" rod adapted to be moved to a vertical positionfor forcing the cutting sag-e 01? the cutting, member through the adjacent portion of the i well pipe as the tubeis forced" downwardly on the rod with the eccentric bearing being forced'against the inner WallIOf the well; tube, and a pin andslo'li,v connect on between I p the rod and the tube forpreventing the rotation of the tube aroundthe' rod whereby said I v elements may be rotated as aunlt to cut off the pipe adjacent its lower end. Y

In testimony whereofI affiz; my signature. I V

TAN -HU O ISQM

Images