US1801976A - Sucker-rod elevator - Google Patents

Sucker-rod elevator Download PDF

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Publication number
US1801976A
US1801976A US437758A US43775830A US1801976A US 1801976 A US1801976 A US 1801976A US 437758 A US437758 A US 437758A US 43775830 A US43775830 A US 43775830A US 1801976 A US1801976 A US 1801976A
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rod
disks
elevator
recess
seats
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US437758A
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Harold K Penny
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M5/00—Solid or semi-solid compositions containing as the essential lubricating ingredient mineral lubricating oils or fatty oils and their use
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • C—CHEMISTRY; METALLURGY
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/287—Partial esters
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    • C10M2207/287—Partial esters
    • C10M2207/289—Partial esters containing free hydroxy groups
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
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    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
    • C10M2209/062—Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
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    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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Definitions

  • a further object ofv the invention is to provide an elevator having'rotatablemembers provided with rod notches and cor-acting to form a gate for holding the rod in the elevator and for automatically positioning themselves when the rod is. withdrawn,
  • Still another object of the invention is to provide resilient locking and retaining means for positive engagement with the rotatable rod members for retaining them in receiving position and for locking them'in closed position when embracing a rod.
  • An important object of the invention is to produce a sucker rod elevator which .Wlll
  • Figure 1 is a view of an elevator constructed in accordance with the invention, a por tion being shown in section and a portion in front elevation.
  • Figure 2 is a plan view of the same, a portion of the cover plate being omitted and the eyes of the bail being in section,
  • Figure 3 is a side iew partly in elevation and partly in section
  • Figure 4 is an elevation of the locking lever
  • Figure 5 is a sectional detail of a modified form of lock
  • Figure 6 is a plan View of the latch
  • Figure 7 is a plan view of another form of rotatable rod engaging members
  • the numeral 10 designates the body of the elevator which has a general elliptical shape as showmsuch shape however being: subject to variation.
  • the body has built up outwardly extending lugs or bosses 11 which form trunnions.
  • Each trunnion has a concaved groove 12 in its underside and a depending bill 13 below said groove.
  • I provide a U-shapedyoke or bail ll having eyes 15 at its lower end and an upwardly extending notch 16 in each eye.
  • said bail In order to at tach the bail to the 'body said bail must be positioned with its eyes uppermost so :that
  • the recesses 16' are extended downwardly and then by springing'the eyes over the lugs 11 the bills are passed through the recesses.
  • the bail When the bail is swung upwardly the bills willoverhang the rounded bottoms of, the eyes and thus retain said eyeson the trunnionsagainst displacement therefrom. This assures an adequate connection without the use of nuts, pins or other fastenings.
  • the front of the body is provided with jaws 17 which are curved outwardly on each side of a throat 18 extending inwardly into the body.
  • Thebody is formed with a recess or sump.
  • I provide screw threaded apertures 20 in the bottom of said recess and on each side of the throat I8. Studs 21 are screwed into the aperv tures and each stud has an annular collar 22 resting onthe bottom of the recess when the stud is screwed into place.
  • the collars form center bearings for rotatable rod-engaging disks 23 mounted in the recess.
  • the disks are confined by a cover plate 24 having apertures 25 for receiving the reduced pins 26 of the studs 21.
  • These pins are screw threaded and nuts'27 mounted thereon fasten the'plate on a shoulder 19 in the recess 19 and on the collars 22 whereby the parts are securely held together.
  • the disks 23 have a thickness slightly less than the depth of the recess 19 and are circular in shape so to freely rotate in said recess about said collars.
  • the cover plate has a slot 18' conforming to the throat 18 but its side walls are bevelled so as to receive the flared shoulder of the sucker rod collar.
  • the cover plate conforms to the general shape of the recess 19 and by removing said plate access is easily had to all elements contained within the said recess.
  • the disks 23 are shown with peripheral notches or seats A, B and C- respectively, each made on a successively increasing radius.
  • peripheral notches or seats A, B and C- respectively, each made on a successively increasing radius.
  • each disk has a plurality of notches A, B and C.
  • a sliding dog or block 28 is mounted between guide bosses 29 in the rear of the recess 19 and its front portion is right-angular in plan so as to engage in said notches. It will be seen that when any pair of seats are brought into rodretaining position their correlated notches will be opposite and substantially concentric to the front of the dog 28 which is urged thereinto by a bow spring 30. The bow spring is confined in the rear of the recess 19 and enga es the rear of the dog.
  • the dog 28 is shown in engagement with the notches B whereby the seats B are locked in position to contain a rod, (not shown) and the disks held against rotation. Before the disks can be rotated or the rod withdrawn from the elevator the dog 28 must be displaced from the notches.
  • I provide a small finger lever 31 journaled in a socket 32 in the cover plate 24. and having a finger 33 engaging in a sump 3-1 in the do 28. By pushing the upper end of this lever orward the dog is retracted and slid back under the tension of the spring whereby the disks are unlocked. I provide an auxiliary sump 35 in the dog so that it may be reversed when worn.
  • the rod (not shown) may be removed from the elevator either by pulling said elevator body rearwardly or by pulling said rod iorwardly. In either case the disks are rotated away from each other andv until the forward edges of the seats are spread sufficiently to provide a gap wide enough to permit the rod to pass through. ⁇ Vhen the lever 31 is re leased the spring 30 will bring the front cor ners of the dog 28 into frictional engagement with the peripheries of the disks thus constituting a spring impelled retaining means for holding the disks in position.
  • Fig. 5 I have illustrated another form of lock.
  • the guides 29 may be made to receive this lock and in such case are provided with concaved recesses 36 in which the trunnions of a latch 37 are journaled.
  • a U-shaped leaf spring 38 is mounted under the latch and said latch has a downwardly bent tip 39 for engaging in the notches as for instance A of each disk.
  • plunger 40 mounted in a boss 41 on the cover plate 24 has a rounded finger 42 at itsv lower end seated in therear end of the latch and by depressing the plunger the latch is rocked to release the disk. 7
  • uadrants 23 may be substituted for said isks as shown in Fig. 7. These quadrants may be equipped with the seats A and B and their corresponding notches A and B.
  • the operating elements of the locking means at the rear of the elevator body a much more convenient and safe arrangement is provided for the lock. It is also advantageous to have the lock operating means within the margin of the elevator body so that whenthe elevator is swung against an obstruction the body will sustain the blow and not the operating means.
  • the locking; means may be easily operated with the thumb or finger and the Workman may quickly release his grip on the body which he could not do if his hand was inserted in a yoke or handle.
  • the rotating rod receiving members not only form gates for holding the rod in position but make for a saving of time and ease of operation as well as providing an adequate means of securely holding and supporting the rod and precluding unintentional dropping of the same.
  • WVhat I claim is:
  • a body having .85 its tip will be elevated and ride upon the top a rod receiving opening, rotatable members mounted on the body of each side of said opening and having rod-receiving seats for coacting to embrace and retain a rod, each member having seats of different radius for receiving rods of different diameters, and a bail for supporting said body.
  • a sucker rod elevator as setfo1'tl1 in claim 1 having means for locking the rotatable members in rod retaining position.
  • a sucker rod elevator as set forth in claim 1 having means for locking the rotatable members in rod retaining position and also for holding them in rod receiving position.
  • a bail In a sucker rod elevator, a bail, a body supported by the bail and having a rod receiving opening, rod engaging members pivoted on opposite sides of the opening on said body and each having a rod receiving seat, locking means for engaging said members, and means for operating said locking means located entirely within the margin of said body.
  • a bail a body supported by the bail and having a rod receiving opening, rod engaging members pivoted on opposite sides of the opening on said body and each having a rod receiving seat, each member having a notch, a sliding dog for engaging said notches, a spring for urging said dog into the notches, and meansfor slidin the dog.
  • X sucker rod elevator as set forth in claim 4 in which .each rod-engaging member has a plurality of rod seats of different radii for receiving rods of different diameters when brought into co acting relation.
  • each rod-engaging member has a plurality of rod seats of different radii for receiving rods of different diameters and also has a locking notch for each seat.
  • a bail a body suspended by the bail and having a recess with a rod-receiving opening extending from said recess, rotatable disks mounted in said recess and having rod seats on each side of the opening of the body, a cover plate on said body over said recess and disks, and means for locking said disks in position.
  • a sucker rod elevator as set forth in claim 8 in which each disk has a plurality of rod seats of different radii for receiving rods of different diameters, when the co-acting seats of the disks are brought into rod receiving relations. 7
  • a bail a body suspended by the bail and having a recess with a rod receiving opening extending from said recess, a pair of rotatable disks journaled in said recess on opposite sides of the opening of the body, each disk having a plurality of rod seats of difierentradii and also having a locking notch for each seat, the
  • notches being spaced from the seats so that when theseat of one disk is registered with the seat of the other disk the corresponding notches will be opposite each other, and a spring actuated dog engaging said notches.
  • a bail a body suspended bythe bail and having a recess with a rod receiving opening extending from saidrecess, a pair of rotatable disks journaled in said recess on opposite sides of the opening of the body, each disk having a plurality of rod seats of different radii and also having a locking notch for each seat, the notches being spaced from the seats so that when the seat of one disk is registered with the seat of the other disk the corresponding notches will be opposite each other, a sliding dog mounted in the recess of the body and having angular corners for engaging in the notches of the disks, a spring mounted in the body and engaging the dog, a cover plate mounted on the body over the disks and dog, and an operating lever engaging the dog and extending through the plate.
  • a sucker rod elevator an elliptical body and trunnions at its end and provided with a recess, a bail in which the trunnions of the body are journaled.
  • the body having a rod receiving throat extending outwardly from the recess at one side of the body, curved jaws on the body at the entrance to the throat,studs mounted in the recess of the body, disks rotatably mounted on the studs and overhanging the throat of said disks, having a plurality of rod seats and locking notches, a spring pressed dog slide ably mounted in the recess of the body for engaging the notches of the disks, a cover iso

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Description

April 21, 1931. 7 H. K. PENNY SUCKER ROD ELEVATOR Filed March 21, 1930 2 Sheets-Sheet l Jwuml oz flare/d 14 Pen/2y April 21, 1931. H. K. PENNY SUCKER ROD ELEVATOR Filed March 21, 1930 2 Sheets-Shee t 2 M W Z v WQDL 2.. w I f 6 W 9 an I y 2 m Patented Apr. 21, 1931 teeters UNITED STATE'S'PATENT OFFICE.
HAROLD K. PENNY, OE DALLAS, TEXAS STICKER-ROD ELEVATOR Application filed March 21, 1 930 Serial No. 437,758.
sizes may be swung into operative position by a simple adjustment, of said members.
A further object ofv the invention is to provide an elevator having'rotatablemembers provided with rod notches and cor-acting to form a gate for holding the rod in the elevator and for automatically positioning themselves when the rod is. withdrawn,
Still another object of the invention is to provide resilient locking and retaining means for positive engagement with the rotatable rod members for retaining them in receiving position and for locking them'in closed position when embracing a rod. 7
An important object of the invention is to produce a sucker rod elevator which .Wlll
'- notonly be safe and positive in its operation but which will be simple in its construction and convenient and easy to handle and operate.
A construction designed to carry out the invention will be hereinafter describedtogether with other features of the invention.
The invention willbe morereadily understood from a reading of the: following specification andby reference to. the accompanyv 4, ing drawings in which an example of the invention is shown, and wherein: 1
Figure 1 is a view of an elevator constructed in accordance with the invention, a por tion being shown in section and a portion in front elevation.
Figure 2 is a plan view of the same, a portion of the cover plate being omitted and the eyes of the bail being in section,
Figure 3 is a side iew partly in elevation and partly in section,
Figure 4 is an elevation of the locking lever,
Figure 5 is a sectional detail of a modified form of lock,
Figure 6 is a plan View of the latch,
Figure 7 is a plan view of another form of rotatable rod engaging members In the drawings the numeral 10 designates the body of the elevator which has a general elliptical shape as showmsuch shape however being: subject to variation. At each side the body has built up outwardly extending lugs or bosses 11 which form trunnions. Each trunnionhas a concaved groove 12 in its underside and a depending bill 13 below said groove. p
I provide a U-shapedyoke or bail ll having eyes 15 at its lower end and an upwardly extending notch 16 in each eye. In order to at tach the bail to the 'body said bail must be positioned with its eyes uppermost so :that
the recesses 16'are extended downwardly and then by springing'the eyes over the lugs 11 the bills are passed through the recesses. When the bail is swung upwardly the bills willoverhang the rounded bottoms of, the eyes and thus retain said eyeson the trunnionsagainst displacement therefrom. This assures an adequate connection without the use of nuts, pins or other fastenings.
The front of the body is provided with jaws 17 which are curved outwardly on each side of a throat 18 extending inwardly into the body. Thebody is formed with a recess or sump. On the diainetrical axis of the body, which is also the axis of the trunnions, I provide screw threaded apertures 20 in the bottom of said recess and on each side of the throat I8. Studs 21 are screwed into the aperv tures and each stud has an annular collar 22 resting onthe bottom of the recess when the stud is screwed into place. The collars form center bearings for rotatable rod-engaging disks 23 mounted in the recess. The disks are confined by a cover plate 24 having apertures 25 for receiving the reduced pins 26 of the studs 21. These pins are screw threaded and nuts'27 mounted thereon fasten the'plate on a shoulder 19 in the recess 19 and on the collars 22 whereby the parts are securely held together.
The disks 23 have a thickness slightly less than the depth of the recess 19 and are circular in shape so to freely rotate in said recess about said collars. The cover plate has a slot 18' conforming to the throat 18 but its side walls are bevelled so as to receive the flared shoulder of the sucker rod collar. The cover plate conforms to the general shape of the recess 19 and by removing said plate access is easily had to all elements contained within the said recess.
The disks 23 are shown with peripheral notches or seats A, B and C- respectively, each made on a successively increasing radius. When the disks are adjusted to bring the coacting seats AA together. an opening for receiving the smallest size of rod will be provided and as succeeding seats are brought together larger sizes of rods may be received up to the limit of the seats C. The seats are given an upward bevel so as to better support the collars or heads of the sucker rods.
In order to lock the disks in rod-retaining position as is shown in Fig. 2 each disk has a plurality of notches A, B and C. A sliding dog or block 28 is mounted between guide bosses 29 in the rear of the recess 19 and its front portion is right-angular in plan so as to engage in said notches. It will be seen that when any pair of seats are brought into rodretaining position their correlated notches will be opposite and substantially concentric to the front of the dog 28 which is urged thereinto by a bow spring 30. The bow spring is confined in the rear of the recess 19 and enga es the rear of the dog. i
n Fig. 2 the dog 28 is shown in engagement with the notches B whereby the seats B are locked in position to contain a rod, (not shown) and the disks held against rotation. Before the disks can be rotated or the rod withdrawn from the elevator the dog 28 must be displaced from the notches. For actuating the dog I provide a small finger lever 31 journaled in a socket 32 in the cover plate 24. and having a finger 33 engaging in a sump 3-1 in the do 28. By pushing the upper end of this lever orward the dog is retracted and slid back under the tension of the spring whereby the disks are unlocked. I provide an auxiliary sump 35 in the dog so that it may be reversed when worn.
When the dog is retracted and the disks unlocked the rod (not shown) may be removed from the elevator either by pulling said elevator body rearwardly or by pulling said rod iorwardly. In either case the disks are rotated away from each other andv until the forward edges of the seats are spread sufficiently to provide a gap wide enough to permit the rod to pass through. \Vhen the lever 31 is re leased the spring 30 will bring the front cor ners of the dog 28 into frictional engagement with the peripheries of the disks thus constituting a spring impelled retaining means for holding the disks in position. When a rod is inserted in the throat 18 and engaged in the seats of the disks and the disks then rotated toward each other by the continued inward movement of the rod, it is obvious that the dog 28 will automatically ride into the notches when the rod is brought into locking position; however, the rear end of the throat would form a stop for this purpose.
In Fig. 5 I have illustrated another form of lock. The guides 29 may be made to receive this lock and in such case are provided with concaved recesses 36 in which the trunnions of a latch 37 are journaled. A U-shaped leaf spring 38 is mounted under the latch and said latch has a downwardly bent tip 39 for engaging in the notches as for instance A of each disk. When the latch is depressed surface of the disk when the latter is rotated, thus retaining said disk in position. plunger 40 mounted in a boss 41 on the cover plate 24 has a rounded finger 42 at itsv lower end seated in therear end of the latch and by depressing the plunger the latch is rocked to release the disk. 7
Instead of employing circular disks and particularly where only rods of two sizes are handled uadrants 23 may be substituted for said isks as shown in Fig. 7. These quadrants may be equipped with the seats A and B and their corresponding notches A and B.
While I have shown two forms of spring locking and retaining means it is within the scope of'the invention to provide other means for the same purpose. However by having the operating elements of the locking means at the rear of the elevator body a much more convenient and safe arrangement is provided for the lock. It is also advantageous to have the lock operating means within the margin of the elevator body so that whenthe elevator is swung against an obstruction the body will sustain the blow and not the operating means. Further the locking; means may be easily operated with the thumb or finger and the Workman may quickly release his grip on the body which he could not do if his hand was inserted in a yoke or handle. The rotating rod receiving members not only form gates for holding the rod in position but make for a saving of time and ease of operation as well as providing an adequate means of securely holding and supporting the rod and precluding unintentional dropping of the same.
Various changes in the size and shape of the ditterent parts, as well as modifications and alterations, may be made within the scope of the appended claims.
WVhat I claim, is:
1. In a sucker rod elevator, a body having .85 its tip will be elevated and ride upon the top a rod receiving opening, rotatable members mounted on the body of each side of said opening and having rod-receiving seats for coacting to embrace and retain a rod, each member having seats of different radius for receiving rods of different diameters, and a bail for supporting said body.
2. A sucker rod elevator as setfo1'tl1 in claim 1 having means for locking the rotatable members in rod retaining position.
3. A sucker rod elevator as set forth in claim 1 having means for locking the rotatable members in rod retaining position and also for holding them in rod receiving position.
4. In a sucker rod elevator, a bail, a body supported by the bail and having a rod receiving opening, rod engaging members pivoted on opposite sides of the opening on said body and each having a rod receiving seat, locking means for engaging said members, and means for operating said locking means located entirely within the margin of said body.
5. In a sucker rod elevator, a bail, a body supported by the bail and having a rod receiving opening, rod engaging members pivoted on opposite sides of the opening on said body and each having a rod receiving seat, each member having a notch, a sliding dog for engaging said notches, a spring for urging said dog into the notches, and meansfor slidin the dog. i
6. X sucker rod elevator as set forth in claim 4 in which .each rod-engaging member has a plurality of rod seats of different radii for receiving rods of different diameters when brought into co acting relation.
7. A sucker rod elevator as set forth in claim 5 in which each rod-engaging member has a plurality of rod seats of different radii for receiving rods of different diameters and also has a locking notch for each seat.
8. In a sucker rod elevator, a bail, a body suspended by the bail and having a recess with a rod-receiving opening extending from said recess, rotatable disks mounted in said recess and having rod seats on each side of the opening of the body, a cover plate on said body over said recess and disks, and means for locking said disks in position.
9. A sucker rod elevator as set forth in claim 8 in which each disk has a plurality of rod seats of different radii for receiving rods of different diameters, when the co-acting seats of the disks are brought into rod receiving relations. 7
10. In a sucker rod elevator, a bail, a body suspended by the bail and having a recess with a rod receiving opening extending from said recess, a pair of rotatable disks journaled in said recess on opposite sides of the opening of the body, each disk having a plurality of rod seats of difierentradii and also having a locking notch for each seat, the
notches being spaced from the seats so that when theseat of one disk is registered with the seat of the other disk the corresponding notches will be opposite each other, and a spring actuated dog engaging said notches.
11. In a sucker rod elevator, a bail, a body suspended bythe bail and having a recess with a rod receiving opening extending from saidrecess, a pair of rotatable disks journaled in said recess on opposite sides of the opening of the body, each disk having a plurality of rod seats of different radii and also having a locking notch for each seat, the notches being spaced from the seats so that when the seat of one disk is registered with the seat of the other disk the corresponding notches will be opposite each other, a sliding dog mounted in the recess of the body and having angular corners for engaging in the notches of the disks, a spring mounted in the body and engaging the dog, a cover plate mounted on the body over the disks and dog, and an operating lever engaging the dog and extending through the plate.
12; In a sucker rod elevator, an elliptical body and trunnions at its end and provided with a recess, a bail in which the trunnions of the body are journaled. The body having a rod receiving throat extending outwardly from the recess at one side of the body, curved jaws on the body at the entrance to the throat,studs mounted in the recess of the body, disks rotatably mounted on the studs and overhanging the throat of said disks, having a plurality of rod seats and locking notches, a spring pressed dog slide ably mounted in the recess of the body for engaging the notches of the disks, a cover iso
US437758A 1930-03-21 1930-03-21 Sucker-rod elevator Expired - Lifetime US1801976A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284374A (en) * 1992-05-15 1994-02-08 The United States Of America As Represented By The United States Department Of Energy Apparatus for remotely handling components
EP2180134A1 (en) * 1999-10-01 2010-04-28 Frank's International, Inc. Improved oilfield tubular elevator and method for using same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284374A (en) * 1992-05-15 1994-02-08 The United States Of America As Represented By The United States Department Of Energy Apparatus for remotely handling components
EP2180134A1 (en) * 1999-10-01 2010-04-28 Frank's International, Inc. Improved oilfield tubular elevator and method for using same

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