US1709380A - Rod elevator - Google Patents

Description

R. F. TUCK ROD ELEVATOR April 16, 1929.

Filed May 1 928 INVENTOR I ]/;f\ Russell F 'T'vcK BY ORNEY Patented 16, 12 29.:

- UNITED [STATES J ,739,380 (PATENT o F-1'cE.-. 1

RUSSELL r. TUGILOF LONG BEACH, CALIFORNIA, ASSIGNOR or one-HA F T rant anonwna, or none imacn, CALIFORNIA. 1 I

BOD ELEVATOR.

IAppl-ication fi1ed May 7, 1338,. Serial No. 275,741.

This invention relates to an elevator for irods, tubing, and the like, and is used in, the placing or removlng of the rods or tubing in oil or water wells.

;An object of my invention is to provide an elevator inwhich the latches are so ar- Thus u' hen,therodsaregin iti asshown I inFigures 1 and 2, the box 9' of the rods will bear against the latches,effectivelyprev-enting them from accidentally opening, and al-,

ranged that the weight of the rods thereon will tend to hold the latches 111 closed posl tionf 0 TA further object is to so position the latches of an elevator that theyw-ill provide a bearing surface for the tubing post against which the elevator bears. r 7

Another object is to provide an elevator in which the rods are easily latched and from which they may be readily removed.

An advantage of my elevator res desln the fact that the rods. cannot read ly be accidentally removed therefrom, norl will the latches 'open to permit the elevator to slip off of'the rods, p

Otl er Qb ects, advantages, and features of invention may appear from the accompanying drawing, the subpmed-detaded description, and the appended claims.

I In the drawing: 7 p

1Fig. 1' is a side elevation of the elevator. Fig.2 is an end view of the same.

Fig. 3 is a plan view. 1 V V Fig. 4 is l'SGOtlOIlll view taken OILllIlG 4,4: of Fig. 3. p p y F 5 is perspective view of one of the latches.

f Referring more particularly to the drawing, the. numeral '1 indicates the substantially rectangular-elevator body from the sides of which trunnions 2,2 extend. A.

bail 3 is pivotally secured to the itrunnions 2 and provides a means by which the eleva-- ftor is raised or lowered as the sucker rods,

or the like, are inserted or removed from thewell. The trunnions 2 are preferably above the center of gravity of the bodyrl so that the c evator will normally hang in in the position shown in Figures 1 and2.

body 1 and is of an appropriate size to receive the sucker rod 5. A'slot 6 is out through the body '1 and exteudsfrom the forward edge thereof to the bored.- Thus it will be seen that the rods are inserted in the elevator byinserting them through the slot Guntil they rest in the bore 4. "Toprevent the rods from "falling out of the elevator and effectively latching them in p 'vator. I A vertical bore 4 extends through the turned upside down. 7

7, 8 coincide with the surface of thebody 1.

so providing a bearing surface about the entire circumference ofthe rod.

Angu'arly extending cuts 10, 11 extend wthroughthebody 1 from the slot 6 to. the I outer edges. 1 The 1atches7, Sjare mounted in the cuts 10, 11,,respectively, and are secured against movement by; angularly extending pivot pins 12, 18,1;,respectively."

Thus it will be seen that'thelatches inopening or closing move in a plane at an angle to. the upperrsurface of, the body 1.

The latches 7, 8 are each provided with a side plate 14', 15, respectively, which QX-V tends downwardly along the side of. the

body 1,- and openings 16, 17 areprovided to permit inward movement of the side'plates. A coil spring 18, 19 is provided between the side plates 1 1, 15, respectively, and the inner Wall of the openings 16,17. These springs serveto,urge -theside plates outwardly and thus-swing the latches 7, 8 into closed posithe operator grasps thetwo side plates 14,

15, pressingthem inwardly, andthisswings the latches 7', '8, upwardly-Hand;outwardly until a free passage is left through the slot 6 through which the rods are pulled. Due

to this upwardandoutwardmotion of the latches it Will be evident that any pressure on the top thereof Will eifectively prevent them from moving and will hold'therods against accidental removal from the ele- Q11 both sides of the body 1 Iprovide a pair of pins 21, 22, these pins serving the purpose of limiting the'swing of the bail 3 so that-the body 1 can never be accidentally Having described my invention, 1 claim; liA rod elevator comprising a body,

trunnions on t-he body, a bailpivotallyse cured to the trunnions, said body having a vertical bore therethrough, and afslotextion. The springs extend over pins 20, 20 V r i to when in closed position.

tending to sa" lbore through'which the rods are-inserted, a pair of latches pivotally mounted in the body, said latches extending across the slot when in closed position, said latches being adapted to swing upwardly and outwardly to unlatchingposition.

2. A rod elevator comprising vva body,

trunnions on the body, a bail pivotally se-' cured to the trunnions, said body having a vertlcal bore therethrough, and a slot eX- tending to said bore through which the rods are inserted, a pair of latches" pivotally mounted in the body, said latches extending across'the slot when in closed position, said latches being adapted to swing upwardly and outwardlyrto unlatching position, and the upper surfaces of said latches 'COlilCl'CllIlg with the upper surface of the body when said latches are in closed position.

3. A rod elevator comprising a body having a central bore therein, and a slot communicating "therewith, a pair of cuts, extending from the slot to the side'edges of the body and, inclined upwardly at an angle,

a latch pivotally mounted in each ofthe said latches extending across the slot when 7 said latches into closed position, the upper in closed position, and spring means urging surfaces of said latches coinciding with the upper surface of the body.

5. A rod elevator comprising a body having a central bore therein, and a slot cominunicating therewith, a pair of cuts extending from the slot. to the side edges of the body and inclined upwardly at an angle, a lat-ch'pivotally mounted in "each of the cuts, said latches extend'ingacross thelsl ot when l in closed position, side plates formed on said 7 latches, and a spring positioned between each side plate and the body whereby the latches are urged into closed position.

6. A rod "elevator,comprising a body having a central boretherein, and a slot com-' municating therewith, a pair of cuts extendmg from the slot to the side edges of the body and mclmed upwardly at an angle, a

latch pivotally mounted in each of the cuts,

said. latches extending acrossthe slot when in closed position, said body having openings in the front face thereof, side plates on the latches adaptedto fit into said openings, said openings being so adapted and arranged. that the side plates can move inwardly to swing the latches upwardly and outwardly into unlatchedposition.

7 A red elevator comprising a body having a central bore therein, and a slot communicating therewith, a pair of cuts extending from the slot to the side edges of the vbody and inclined'upwardly at an angle, a

latch pivotally mounted in each of the cuts, said latches extending across the slot when in closed position, said body having openings in the front face thereof, side plates'on the latches adaptedto lit into said openings, said openings being so adapted and arranged that the side plates can move'inwardly to swing the latches upwardly and outwardly into unlatched position, and a spring adapted to bear against each of the side plates, said spring being positioned withinthe opening, 1

8. A red elevator comprising a body having a central bore therein, and a slot communicating therewith, a pair of cuts extending'from the slot to the side edges of the body and inclined upwardly at an angle, a latch pivotally mounted in each of the cuts,

said latches extending across the slot when in closed position, said body having openings in the front" face thereof, side plates on the latches adapted to fit into said openings, said openings being so adapted and arranged that the side plates can move inwardly to swing the latches upwardly and outwardly into unlatched position, and a spring adapted to bear against each of the ide plates, said spring being positioned within the opening, and the upper surfaces of said latches coinciding with the upper surface of the body. V i

In testimony whereof, I aflix my signature.

RUSSELL n. Tues.

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