US1461365A - Oil-well bailer - Google Patents

Description

July 10,

c. w. MORRIS OIL WELL BAILER Filed April '7, 1922 INVENTOR ATTORNEY Patented July 10, 1923.

PATENTGFFICE.I

CHARLES WILLIAM ivronnrs or LARAMIE. wvoivrme.

. OIL-WELL IBAILER.

'TA pplication filed April 7, 192a seri iub. 550,286. g

lowing is a specification, reference being had to. the accompanying drawings.

This invention is an oil well bailer, for removing mud, water, sand, gravel, rock and the like from the bottoms of oil wells in the process of drilling. The object of the invention is to provide a practical, eflicient and readily operable device of this kind.

In the drawings:

Figure 1 is an elevation of the bailer, sections being brokenout to show the interior mechanism. The bailer is here shown resting on the derrick floor preparatory to being set and lowered in the well.

Figure 2 is a similar view, showing the bailer properly set for lowering Figure 3 is a similar view, showing the bailer being lifted out of the well, after loading.

The invention comprises a hollow, cylindrical body or barrel 1, slightly reduced at the lower part 2 to facilitate the lowering of' same into the well or tubing without catching or tripping, and being closed at the top end 14. At the lower end of this barrel are hinged'at 3 two oppositely disposed, scoopjaws 4, suitably sharpened on their edges 5. These jaws are semi-circular in cross section so when opened out and down they will conform to the curved sides of the barrel and in effect form a sort of extensionthereof for together nicely on a central line 6, as shown in Figure 3. The jaws 4 have rigidly connected shanks 7 which set inwardly at approximate right angles to the body of the jaws, and connecting rods 8 are pivoted at 9 to the ends of these shanks. The upper ends of the rods 8 are pivoted at 10 to a plate 11. A square draw-rod 12 passes freely through the plate 11 and has a nut 13 securedto the lower end thereof. The draw rod 12 passes freely through the top end 14, and ends in an eye 15 to which the line 16 is attached. Spaced stops 17 and 18 are mounted on the rod 12, one above and one below the top closure 14, so as to allow a certain play up and down to said rod 12. Two hook arms 19 and 20 a e pivoted at 2.1 to opposite sides of the rod 12 and have hooks 22 and 23 adapted toswing outand engage cross bars 24 and 25 mounted across the cylinder .1 on oppositesides. Chains 26 and 27 are attached at 28 and 29 to the arms 19 and 20 and extend freely through the top closure 14, ending in rings 30 and 31. These chains afiord means for pulling the hooks 22 and 23 out into engagement with the bars 24 and 25.

In use, the apparatus is rested upon the derrick floor, the jaws 4 being closed. fThe hooks 22 and 23 are pulled out under the ' bars 24 and 25. By pulling the line 16 taut the weight of the entire apparatus is then suspended from the hooks 22 and 23, and the jaws 4 fall. open by their own weight. The device is thuslowered to the bottom of the well, where the material to be bailed out passes up through the open jaws into the barrel. As the'bailer strikes bottom, the draw rod 12 drops down'until the stop 17 rests uponthe plate 11, and the hooks 22, 23 fall away from the bars 24, 25. As the line 16 is drawn upon, the nut 13 engages the under side of the plate 11, thus pulling upon I connecting rods 8 and-closing the jaws 4.

The bailer is then pulled out of the well and emptied and the operation repeated, as desired.

While I have herein described a certain,

specific method of constructing and assembling the elements of my invention, it is 1mderstood samemay be varied in minor details, not departingfrom the spirit of my invention as defined in the appended claims.

I claim 1. A well bailer, comprising a hollow cyl-' u inder open at bottom and closed at top;

scoop shaped jaws hinged at the lower end and adapted toopen in conformity with the I contour of the cylinder'and to closetogether on a central line; shanks rigidly secured to the jaws and extended inwardly;' connecting rods pivoted at-their lower ends to said shanks; a plate secured to the upper ends of said connecting rods; a square draw rod passing freely through the said plate and freely through the top of the cylinder, and

endingin an eye adapted to engage 'a line, stops on the draw rod above and below the cylinder top; cross bars oppositely mounted inside the cylinder; hook-arms oppositely pivoted to the draw rod, andcarrying hooks adapted 'to swing out and engage-the cross ba s; nd hains. at a h d o the h ok arm d and xten freely p hr u hfih p f the cylinder.

2. A well bailer, comprising a barrel open at bottom; jaws hinged at the bottom end to open and close centrally, said jaws having inwardly directed shanks set at an angle to the jaws; connecting rods hinged to the jaws; a draw rod slidingly engaging said he op. f t e. bar ;crq srbar r ns d the barrel; and'hooks pivoted totherdrgttv rod. and adapted to swing out into engagement with the cross bars.

CHARLES WILLIAM MORRIS.

Witnesses AILLIE, LOUIS J BATH.

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