US671617A

US671617A - Valve-grab.

Info

Publication number: US671617A
Authority: US
Inventors: August Adam Yackee
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-05-31
Filing date: 1900-05-31
Publication date: 1901-04-09
Anticipated expiration: 1918-04-09

Description

No. 67|,6|7. Patented Apr. 9, |90I.

' A. A. YACKEE.

VALVE GRAB.

(Application fild May 31, 1900.1

(un uanl'oz AUGUST ADAM YACKEE, OF ROBERTS, ILLINOIS.

VALVE-G RAB.

SPECIFICATION forming part of Letters Patent No. 671,617, dated April 9, 1901.

Appnmtm tied May 31, 1900. serial No. 18,621. ino moda.)

To all wwnt it may concern:

Be it known that I, AAUGUST ADAM YACKEE, a citizen of the United States, residing at Roberts, in the county of Ford and State of Illinois, have invented a new and useful Valve- Grab, of which the following is aspecification.

My invention relates to a novel valvegrab, which term is employed as a designation of that type of tools employed for the purpose of recovering foot-valves from Artesian or other wells.

In order that the utility of my grab may be more apparent, it may be premised that in Artesian and certain other types of wells a pump tube or casing of great length and small diameter is sunk to a considerable depth, and at a greater or less distance from its lower end is located a foot-valve which is not attached to the Working valve and the other operative parts of the pump, but is designed to rise for the purpose of permitting the elevation of water or oil and to drop back into its seat in the manner of an ordinary checkvalve when downward pressure is exerted upon it by the downward stroke of the working valve. In course of time it becomes necessary to recover and remove the foot-valve, the necessity for this recovery or removal being brought about by various circumstances, which are well known in the art and which need not therefore be detailed at this time. The recovery of the foot-valve is rendered more or less difficult by an accumulation of sand above it, and it is sometimes practically impossible to recover the foot-valve until after the obstructing sand has been removed in some well-known manner.

The object of my invention is to provide a grab or grapple having means for removing the sand to uncover the valve and a grappling device designed to engage the bail or other part of the valve to effect its withdrawal from the pump-casing.

To this end the invention consists in constructing the grab of a heavy tubular section compressed at diametrically opposite points in a longitudinal line for a suicient distance from its lower end to form a pair of jet-noz- Zles, below and between which are disposed a pair of grappling-hooks having spring-shanks riveted or otherwise permanently secured at their upper ends to the fiattened portion of the tubular body of the grab. The upper end of the tubular shank is provided with a valve-seat for the reception of a check-valve retained in place by a coupling-sleeve screwed upon the upper end of the tubular shanl; to facilitate the attachment of a line of hose or pipe, which is carried beyond the upper end of the pump-casing and is connected with hydraulic apparatus designed to project jets of water from the nozzles for the purpose of loosening the valve or to exert a suction tending to draw the sand through the tubular shank and pipe for the purpose of uncovering the foot-Valve, and thereby permitting the grappling-hooks to engage with and remove the latter.

The invention further consists in certain details of construction and arrangement hereinafter fully described, illustrated in the accompanying drawings, and succinctly defined in the claims.

In said drawings, Figure l is a sectional View through a portion of an Artesian well, illustrating the application of my device. Fig. 2 is a perspective View of the valve-grab detached. Fig. 3 is a central longitudinal sectional view thro ugh the grab detached, and Fig. /iis a transverse sectional view on the line t 4 of Fig. 3.

Referring to the numerals of reference employed to designate corresponding parts in the several views, l indicates an ordinary Artesian or oil well tube, between two sections of which is located, as usual, the foot-block 2, having an axial opening 3 for the reception of the foot-valve 4, which is ordinarily provided upon its upper end with a loop or bail 5, designed for the purpose of facilitating the engagement of a tool to eEect the removal of the foot-valve.

6 and 7 indicate a pair of opposed grappling-hooks formed at the lower ends of a pair of spring-Shanks 8 and 9 and having terminal beaks, the opposed faces 10 and ll of which are beveled or curved in opposite directions to provide an intermediate throat for the reception of the bail 5 and to facilitate the automatic separation of the grappling-hooks by the bail 5 when the device is lowered into the well-casing. The upper end of the spring-Shanks 8 and 9 are secured, as by rivets l2, to the opposite flattened sides ICO of a tubular grab-shank 13, compressed along diametrically -oppos'ed longitudinal lines ay considerable distance from the lower end of the shank for the purpose of' forming a pair of

nozzles

14 and 15, discharging at opposite sides of the grappling device or hooks and designed for the purpose of projecting jets of water under hydraulic pressure in the direction of the valve and at diametrically opposite sides of the well-casing for the purpose ofveffectually loosening the sand and uncovering the bail 5 of the foot-valve 4 to permit the engagement therewith of the grapplinghooks 6 and 7. The tubular upper end of the shank 13 is therefore provided with threads 16 for the reception of an internally-threaded coupling-sleeve 17, designed to facilitate the coupling to the grab of a line of hose or pipe 18, extending to a point above the well,wh ere itis placed in communication with some usual form of hydraulic pumping mechanism designed to supply the Water under pressure for deliveryinthe region of thefoot-valve from the

nozzles

14 and 15 of the grab-shank. Under some conditions, however, it. may be desirable instead of effecting the loosening of the foot-valve vby projected jets of water under pressure to remove the sand by suction from above the valve. In the latter event -a spherical check-valve 19 is placed within the coupling-sleeve 17 to be seated upon la valve-seat 20, formed in the upper end of the shank 13, and confined within proper limits of movement bya diametrical bar 21, secured within the coupling-sleeve 17 and constituting, in effect, a valve-cage. With the valve in place, as illustrated in Fig. 3 of the drawings, the hydraulic pumping machinery is reorganized in an obvious manner for the purpose of producing a suction through the pipe 18 and through the tubular shank of the grab, the eect of this being to draw the sand into the grab-shank through the

nozzles

14 and 15, which in this embodiment of the invention become induction-ports, and, having been carried into the pipe 1S above the grab, the

return of the sand to the interior of the pumpcasing is prevented by the valve 19.

Whether the sand above the foot-valve is removed by a hydraulic jet or by suction, it will be obvious that as soon as the bail 5 of Said valve is uncovered the

inclined faces

10 and 11 of the hook-beaks will be presented to the bail by the weight of the grab and its connected parts, causing the grappling-hook to open for the reception of the bail, which will then be firmly engaged by the approach below the bail of the grappling-hooks under the impulse of the shanks Sand 9, after which vthe valve may be withdrawn by the withthe right to effect such changes, modifications,

and variations as may be properly comprehended within the scope of the protection prayed.

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

1. In a valve-grab, the combination with a grappling device, of a plurality of nozzles disposed in the general direction of the grappling device and in effective proximity thereto to facilitate the engagement of a valve by the grappling device, and means for establishing communication between said nozzles and a source of fluid-supply.

2. Avalve-grabcomprisingatnbularshank having a plurality of nozzles at its lower end, and a grappling device located below, and intermediate of, said nozzles, to engage a valve uncovered by aluid circulation directed through the nozzles.

` 3. Avalve-grabcomprisingatubularshank flattened at diametrically opposite points to dei ne a pair of discharge-nozzles at the lower ends of said shanks, and a pair of opposed grappling-hooks located below the lower end of the tubular shank and having spring- Shanks permanently connected to the fiattened portions of the tubular shank of the grab.

4. A valve-grab comprisinga tubular shank [iattened at diametrically opposite points to define a pair of nozzles at one end of the shank, a pair of spring-Shanks permanently fastened to the flattened portions of the tubnlarsliank and provided at their lower ends with grappling-hooks having opposed beaks,a couplingsleeve screwed upony the upper end of the tubular shank, and a gravity-valve retained within the sleeve and designed to be-seated upon the upper end of said tubular shank.

In testimony that I claim-the foregoing as my ownI have hereto affixed my signature in 4 the presence of two witnesses;

AUGUST ADAM YACKEE. Witnesses:

W. H. YACKEE, GEO. F. ROBERTS.

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