US2151616A - Liner puller - Google Patents

Description

w 9 W. A. REDELL ET AL J 9 6 LINER FULLER Filed Jan. 3, 1938 Patented Mar. 21, 1939 UNITEDVSTATES rATENT OFFICE LINER- FULLER WilliamA. Redell and John M. Wiley, Arkansas City, Kans, assignors to The Farley Machine Works 00., Arkansas City, Kans., a corporation of Kansas Application January 3, 1938, Serial No. 183,184 2 Claims. (01. 29-882) This invention relates topullers for dislodging SWiVeiled at its lower end threllgh the medium of and removing liners or sleeves from cylinders of afiange I On Said lower rotatable in a o ve pumps or other like equipment. I2 formed in the apertured body l3, the aperture ,An object of the invention is to provide novel thereof being a e p of the y so that the v means for applying a maximum power, compared mandrel proje s therethrellgh- The aperture 5 with known devices for such use, to definitely de- 0f t y iS larger in t r ha t ma flned parts or locations of an object to be moved, drel and is threaded to a e e t a s o the said means being adaptable to a wide range of the sleeve IE on the mandrel so that the sleeve utility with respect to pumps or other equipment. is stationarily held with relation to the body.

It is a further object of the invention to pro- The y is p v W h d a S o s IS n its 10 vide a liner puller that will not injure the liner; lower p n in whi h r pp j w l are lidand furthermore, to provide means to facilitate able a a so t a h y p t r m th p the positioning of the puller in exact relationriphery f the y nd r r d n eship with the liner to insure substantially equal ment With he iner to be drawn.

gripping action of the jaws as they engage the Ahettem Plate i315 applied to the y and is 15 liner; the said means furthermore enabling an held in place y Studs threadedin the ycperator to be assured of the correct positioning of Each l has diagonally p s ot 0 a d t e the puller with relation to the liner. lower d o the d e as p s one of It is furthermore an object of the invention to Which projects through 3 t a Shown provide a puller of the character noted which is in Figure When the mandrel is turned, the pins 20 efficient and satisfactory in use and comparatively w l exert a c m a t n th wal s f t inexpensive to produce and maint i slot 20 and move the jaws radially, according to With the foregoing and other bje t i i the direction of rotation of the mandrel. In the invention consists in the details of construe- Figure 5 the l w r s wn as being in their tion, and in the arrangement and combination of Outermest position n Will be drawn inwardly 5 parts to be hereinafter more fully set forth and p r n f he m ndrel in the d r i n f claimed. the arrow A of Fig. 5.

In describing the invention in detail, reference The y is p d W p p y P will be had to the accompanying drawin forming tioned filler bushing 22 having slots 23 registering part of this application, wherein like characters With the o s 0 e bo y, and t the p' D S 0f 30 denote corresponding parts in the several views, e inventors h t h s b s s S l be o and in whichdifferent diameters to fit the interior of the liner Figure 1 illustrates a View in elevation of the to be pulled and to accurately center the ody puller; with relation to the internal diameter of the liner,

Figure 2 illustrates a similar view at right so that the p exerted wh n r w n h liner 35 angles to that of Fig. 1; will be a straight pull and the force of the jaws Figure 3 illustrates a sectional view on the line On t e liner W be eq a y b t 3-3 of Fig. 2; The sleeve I5 is circumferentially slotted, as at Figure 4 illustrates a sectional view on the line to f rm a r n n wh an arm 5 pr 4--4 of Fig. 2; jects into a threaded aperture 26 of the mandrel, 4O Figure 5 illustrates a sectional view on the line a d the S d arm s held at different positions o 5-45 of Fig. 2; adjustment through the medium of a detent or Figure 6 illustrates a sectional view of a quadp n 21 w h m y enter any one of a plural ty f rant and parts associated therewith; and slots 28 in the flange 29 of a bracket 30, which 5 Figure 7 illustrates a sectional view of the body bracket is secured on the sleeve by a fastening and parts associated therewith. 3i, such as a screw or the like. The pin is under In describing the invention, it will be inferred the tension of a spring 32 which holds it in its adthat the puller is operated when in a substantially justed position, it being obvious that the pin has vertical position, to justify a reference in the speca hand grip 33 on its upper end by which the pin iflcation to the upper and lower ends of the is raised or manipulated and the arm moved in 50 parts, but obviously, pullers of this type are used adjusting the mandrel and consequently the posivery often in a horizontal or other position. tions of the jaws with relation to the body.

In the drawing I0 denotes a stem or mandrel A cross-bar 34 of appropriate construction has threaded a suitable distance from its upper end an aperture through which the mandrel projects,

toward its lower end, the said mandrel being and a nut 35 is threaded on the mandrel. A race- 55 way 36 for anti-friction rollers 31 is interposed between the nut and cross-bar, and when the nut is screwed on the mandrel while the cross-bar is suitably supported by reason of its spanning the end of pump against which the power of the nut is applied, the liner is dislodged and drawn. The cross-bar is preferably reinforced by ribs 38 to insure strength and durability.

It is obvious that filler bushings of different diameters may be substituted, but only one such bushing is illustrated, though the others may be the same construction except as to thickness, and it is shown on the drawing that the lower edge of the bushing rests on a shoulder 39 of the plate I.

We claim:

1. A liner puller comprising a mandrel, a body in which the lower end of the mandrel is swiveled, a sleeve on the mandrel attached to the body, said sleeve having a circumferential slot, an arm movable in the slot and secured to the mandrel for turning the same, means for holding the arm in different positions of adjustment, jaws slidable radially in the body, said jaws having diagonal slots near their inner ends, projections on the mandrel extending into said slots acting on the camming edges of the slots to project and retract the jaws as the mandrel is rotated, and means for exerting a pull on the mandrel longitudinally thereof.

2. A' liner puller comprising a mandrel, a body in which the lower end of the mandrel is swiveled, a sleeve on the mandrel attached to the body, said sleeve having a circumferential slot, an arm movable in the slot and secured to the mandrel for turning the same, means for holding the arm in different positions of adjustment, jaws slidable radially in the body, said jaws having diagonal slots near their inner ends, projections on the mandrel extending into said slots acting on the camming edges of the slots to project and retract the jaws as the mandrel is rotated, threads on the mandrel near its upper end, a cross-bar to be supported through which the mandrel is movable, a nut on the mandrel above the cross-bar for pulling the cross-bar, and anti-friction elements between the nut and. cross-bar.

WILLIAM A. REDELL. JOHN M. WILEY.

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