US1777927A - Hook-off for wells - Google Patents

Description

' Oct. 7, 1930. MARKEY 1,777,927

HOOK-OFF FOR WELLS Filed March 11, 29

mrrleyfiMmiiey INVENTOR Arman 7 UNtt tl 45 under side thereof and having one end suffi- Patented Oct. 75 1 930 7 I t v Q l 1 lfiiATES PATENT OFFICE.

HARLEY I-I. MABQKEYQ or olman, Lou siana l HOOK-OFF W'ELIhS application filed-Maren 11., 1929. Seria1N0 346,203. This invention relates to new and improved through spaced openingsQOin thetimber 11, means forattaching anddetaching the hooks are threaded for engagement with nuts 21 and pull rods of well rigging and the like a whereby sliding movement it of the 'U-bolt- An object ofthe invention comprehends through the openings 20 in the cross bar 11 Another object of the invention contemboltis preferably located beneath thepull rod plates a detachable element for the pull rod 12, the purpose of such disposition will be Afurther object of the invention embodies presently apparent in the following descripan operating member for the detaching eletion and operation of my invention 1o ment. y 1 An extensionor handle 22', arojecting from GO More specifically stated the operating one end of the U-bolt 19, willprovide the member is provided with a handle whereby means of raising the yoke end of the U-bolt in the well rod may be disconnected without parallelism with the pullrod 12 from the subjecting the hands to serious injury. side of the cross bar 11 adjacent thefstir- 15 With the above and other objects in view,- Trup15. 65

the invention further consists of the follow- Hook members 23, formed or otherwise ing novel features and details of construction, provided upon the rod member 18, at spaced to be hereinafter more fully describech illusintervals inthe length thereof, are downtrated in the accompanying drawing and 'wardly and outwardly curved to prevent disy I 20 pointed out in the appended claim. placement of the yokeend of the U-bolt 19 7 In the drawing 7 when engaged therewith. 1 Figure 1 is a perspective view of the hook In Figure 4: of my drawing I have illustratand well rod in operating positions. a ed a modified form of connection for the U- Figure 2 is a view similar to Figure 1 with bolt in the nature of sleeve members 24- ar 25 the invention in use showing the well rod ranged at spaced intervals'upon the pull rod, 75

detached from the hook. V after the manner of thehook members 23, and Flgurefi 1s a top plan v1ew'of a portion of which are provided with open. hooks 25 dethe hook or detaclnng dev ce. pending therefrom and which are also adapt- Figure 4 is an elevation of a modified form for selective engagement with theryoke 1- of connection for the detaching or hook oft 'jlgsed, d f th U-b 1t19 w r 0 device. p When it isdesired to uncouple or otherwise Figure 5 is a side elevation of the modified di ngag th adjac nt nd of th ull-rod form of my invention, i n i 12 and reach arm 17 namely,the stirrup 1 1 Referring to the'drawing in detail wherein nd h k 16 th f th gperatof t flhwait like charact s 1 reference denote until the pull rod is shifted its utmost 01 m p g P the reference chamctels 1O imum through the opening 13in the cross bar indicate, Spaced stamliblfds y g a CTOSS' 11 towardthe hook 16 At such time the exbar ember 11 torroilde a s a P1 tension or handle 22 is engaged and depressed rod 12 passed through an en a 13 e ma, rock the arms of the U-bolt within the open 40 A pi generally deslgnated a at 18 ings 20 in the cross bar 11 whereby the closed adapted to engage h Y 15 or yoke end of the U-bolt 19 will be disposed with. the hook extremity 16 of a leach arm 1 in parallelism with the r member 18 and A rod member 18 is clamped welded or i i 7 otherwise secured to the nullrod 12 upon the 9 dd? and i m l path QY -t OI the ad acent hookinembers23 or 25.

ciently spaced from the adiacent side of the Such ge e t will l d g t Q cross bar or timber '11 whereby the pull rod o the P l e i o d after f may oscillate to its maximum unrestricted by hook 16 is shifted toward the stump 141, the the presence of said rod member. adjacent portion of the pull rod 12 is de the provision ofa guide for the pull rod. will be restricted in one direction. Said U- 55 50 A U-bolt 1.9,having the ends thereof passed pressedand saidhook will ride out 'of the yoke or loop let to occupy the Figure 2 position tively engaged with the U-bolt to release the and terminate the uncoupling process. stlrrup from the reach arm, and a handle In all previous forms of uncoupling or for the U-bolt. hook off devices, the stirrup is generally used to hook the well off. This is done by hooking into the stirrup or placing a block between the stirrup and the hook ofi post.

The modification of my invention shown in Figure 5 of the drawing embodies the following characteristics. I

A rod member or shaft 26 is preferably fixedly connected, by any suitable means,to a cross bar, not shown, and located in spaced relation to a well rod, such as indicated at 27 and immediately beneath same.

An ear 28 of the triangular shape is provided with an enlarged portion 29 upon one side of the base therefor, as shown in dotted lines in Figure 5 of thedrawing. One end of the enlarged portion 29 is tapped to accommodate the adj accnt threaded end of the shaft 26.

A handle member 30, pivotally mounted, as at 31, upon the same side of the ear 28, with relation to the enlarged portion 29, carries a weighted arcuate shaped eccentric 32 having its rounded face serrated or otherwise roughened for biting engagement with the adjacent upper surface of the pull rod 27. 7

By reason of the fact that the enlarged portion 29 of the ear 28 is thre adedly engaged with the adjacent end of the shaft 26, a half turn of the enlarged portion upon the shaft in either direction will dispose the lever and eccentric therefor in its respective working positions.

lVhe-n the pull rod 27 is shifted for oscillatory movement toward the cross bar, not shown, that is, after the modified form of hook off device is set up inworking position, said rod will travel its limit and upon the slightest retrograde movement, the arcuate shaped face of the eccentric will bitingly engage the adjacent upper surface of the pull rod and force the under side thereof against the upper surface of the enlarged portion 29. The hook upon the extremity of the reach arm will then ride out of the stirrup in the ad jacent end of the pull rod as the latter dropsor is sprung down.

The invention is susceptible of various changes in its form, proportions and minor details of construction, and the right is herein reserved to make such changes as properly fall within the scope of the appended claim.

Having thus described the invention, what is claimed is A hook-01f device for well rods comprising a cross bar, a pull rod slidably mounted thereon, a reach arm, a stirrup carried upon one end of the pull rod for connection with the reach arm, a U-bolt mounted for rocking movement upon the cross bar adjacent the reach rod, hook members carried by and operable in conjunction with the pull rod selec- HARLEY H. MARKE Y.

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