US1578800A - Grabbing tool - Google Patents

Description

Maich 3o ,'1926.

vc. F.' BRANDENBERGER GRABBING "rooxfl Filed Jan. 19. 1326A Patented Mar. `3i), 1926.

` vflisvasoo CARL F. BRANDENERGER, OF FORT MADISON, IOWA.

GRABBING troon.

To dZZLw/rom #may concer/n.: l' l Be it'lnown that'I, CARL FQBBANDEN- BERGER, a citizen ofthe United States, re-

siding atjFortrMadison, in the county of Lee and State ot Iowa, have invented a new and useful',Grrabbing Tool, of which the4 following i'saSpeCiiCatiOii,

This invention aims topr'ovide a simple Y u means whereby tools andthe like may be fished out of a well.

It is within the province of the disclosure v4to` improve generally and to Venhance the utility ot devices of that V'type 'tof which the' invention appertains.

With the above and other objects iniview which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction.hereinafter described and claimed, Vitv being understood that changes in the precise embodiment of the f invention herein disclosed, may be made within the scope of what is claimed, without .departing from the spiritV of the invention. 'j

` In the drawingsz- Figure 1 shows 'in elevation, a device constructed in accordance with the invention; Figure 2 is a section on'thel line 2-2 of Figure 1, parts remaining in elevation;

Figure 3 is a fragmental ,elevation showing the parts interengaged for/the retraction of the sleeve; Figure 4` is a cross section on the line 4-4 ofFigureS. 1 j- The 4device formingv the subject matter of this application comprises a tubular body 1, which is a composite structure, the body including an upper member 2v and a lower member 3 connected by a coupling 4, the diameter of the lower member 3 being less than the diameter of the upper member 2, so that the upper end of the lower member 3 forms an internal'shoulder 5 in the body 1. The lower member 3 or" the body 1f hasa depending trough-shaped arm 6 provided with a transverse projection or hook 7 the upper edge of which is laterally andV downwardly inclined, as shown at 8.

reinforcing block 9 maybe held by securing elements 10 in the upper end of the member 2 of the body 1, the aforesaid securing elements retaining, also, a hanger llof any desired sort, whereby the manipulated.

A plunger-12 is mounted closely but slidimplement may be Appiiauon ined January 19, 192e. serial No. 82,329. l

that it cannot pass downwardly through the lowerm'ember' or' thebody 1, the head 14 being adapted toengage the shoulder 5,

Vand the head 'being of such diameter that it` can slideinthe upper member 2 of the body 1. kAt its'ffilower end, the plunger 12 is supplied'with resiliently. expansible grips 15, which are outwardly inclined, as shown yat 16,Y the grips terminating at their lower ends in inwardly projecting claws 17.

A sleeve 18 of tubular form is mounted closely but slidably on the plunger 12 and has an upstanding trough-shaped arm 19 l supplied with a transverse projection or hook 20, the lower edge of which 1s inclined, asindicated at 21,'. to cooperate with the linclination ofthe edge 8y of the hook 7 on the depending arm 6 of the lower member 3 ofthebo'dyl. o

In practical operation, when the parts Vare arranged as shown, in Figure 1, the` sleeve 18 is slid downwardly, until its downward movement is stopped by the grips 15, the

grips being expanded, as shown in Figurel 1. The tool is lowered in the well, with the `head' 14 of the plunger 12 in engagement with the shoulder 5, the lower end of the arm 6of the body 1 being spaced vertically,

as a general statement, from the upper end ofthe arm 19 on the sleeve 8. The grips 15 are disposed about the object which, isto be removed, and the body 1 is reciprocatedv vertically. Thereupon', the lower end of the arm 6 onk the-body 1 hammersV onl the upper endv of the arm 19 on the sleeve 18,'-V

and forcesthe sleeve 18 downwardly on `the v y plunger 12,'.the sleeveV compressing ythe grips .j i'

"15 about the object which is to be removed, l

and the grips assuming the position shown Y in Figure 2. When, if the operator desires f to remove the object, he hauls up onthe body 1, the plunger 12 and the object being raised, y

when the head 14 on the plunger comes into engagement 'with the shoulder' 5 of theV body 1. Y o v. y

Y It may happen that the object is so firmjly lodged in the well that `it cannot be removed after it has been engaged bythe 'grips v15, and after the sleeve 18, which acts as,

a grip-compressor, has beenl driven down -110` into the position shown in Figure 2. Under such circumstances, it is possible for the operator to release the sleeve 18 from the grips l5, whereupon the implement may be pulled out of the well, without the object which the operator. was trying to remove. In order to raise the sleeve 18 and release the grips, the body l is rotated, and then pulled upwardly, thus causing the projections or hooks 7 and 2O to engage with each other, as shown in Figure 3. Zhen the sleeve 18 is raised the grips l5 are released, and when the head 14 on the plunger l2 comes into Contact with the shoulder 5, the tool may be removed from the well in` depndently of the lodged object.

'lVha-t is claimed is v.

l. In a device of the class described, a

plunger provided at its lower end with a compressible grip, a sleeve slidable on the plunger to compress and release the grip, a body rotatable on the plunger, and slidable onthe plunger to depress the sleeve and compress the grip, first'interengagng elements on the body and the plunger and cooperating to secure a withdrawal of the plunger along with the body, and second interengaging elements on the body and the sleeve and cooperating to connect the sleeve with the body, for withdrawal, when the body is rotated. Y

2. A device of the class described, constructed as set forth in claim l, and further characterized by the aet that the rstinterengaging elements embody a head yand shoulder connection between the body and theplunger; the second interengaging elements comprising oppositely extended transverse progections on the bodyand on the sleeve.

ln testimony that I claim the foregoing as my own, 'I have hereto aixed my signature.

CARL F. BRANDENBERGER..n

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