US 1096288 A
Description (OCR text may contain errors)
J. H. OUBBISON.
APPLICATION FILED JULY 10, 1913.
1,096,288, I Patented May 12, 1914.
QJEM 5% JACOB H. CUBBISON, OF LAWRENCEVILLE, ILLINOIS.
Specification of Letters Patent.
Patented May 12, 1914.
Application filed July 10, 1913. Serial No. 778,257.
To all whom it may concern Be it known that I, Jxoon H. Cunmsox, a citizen of the United States, residing at Lawrenceville, in the county of Lawrence and State of lllinois, have invented certain new and useful Improvements in Grapples; and I do declare the following to be a full, clear, and exact description of the invention. such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and ligures of reference marked thereon, which form a part of this specification.
T his invention relates to improvements in grapples, particularly for use in recovering a hailer -tube or boring implement which may have become detached or disconnected from its suspending cable or line, as in conducting well boring operations.
The invention has for its object to greatly simplify details of construction and to render the extracting operation ettective.
A further object is to provide, in event of the tearing away of the hail of the bailer tube by the grapple as the latter is actuated .in performing the extracting or fishing operation. for securing a purchase or grip upon the bailer -tube, as for instance upon its inside by the use of a spear or ordinary extracting implement.
Xi still further object is to carry out the aforesaid ends in an etlective and expeditious manner and with facility and economically.
The invention therefore consists of certain iustrumentalitics and features of construction. substantially as hereinafter disclosed and defined by the appended claims.
in the accompanying drawing is illustr d the preferred embodiment of my invention wherein it will be understood that various changes and modifications as to thedetailed construction and arrangement of the parts may be made without departing from the spirit of the invention, and 1n which drawing:
tal partly sectional and partly side view of the device disclosing more particularlythe dog-retaining spring.
In carrying out my invention, I provide the head 1 of the ordinary tool or mandrel (not shown) as employed for an analogous purpose hereof with a bifurcated or forked lower end, the resulting prongs 2 and 3 having the separating slot or notch l therebetween of substantially inverted V-shape, being widest at its lower end and tapering toward its upper end. Said slot also has its greater portion from the lower end upwardly arranged laterally or at one side of the longitudinal center of the head 1, said slot also being extended in an opposite lateral direction and terminated at its upper tapering end into a narrow curved notch 5 in said longitudinal center, said terminal notch being depressed as at 6 slightly below the entrance thereto as clearly seen in Fig. 1 to receive the bail a of the F bailer -tube A.
Pivoted or hung, as at 7, in a recess 8 in the head 1, continuous to the upper end notch 5 of the slot a, is a latch or dog 9, said recess being of such outline as to allow of said dog being disposed or elevated into an upwardly inclined position out of the plane of the upper end of said slot, as seen in dotted lines in Fig. 1, by the contact therewith of the bail a of the bailer-tube A, as when the latter may have become detached or lost in the well and in bringing or directing the bail within said slot into the notch 5. A spring 9 suitably connected to the head or member 1 and the dog 9 provides for effecting the automatic engagement of the dog with the bail a of the bailer tube A. The free end of said dog being slightly recessed or concaved, as at 10, to conform to the contour or outline of the bail a of the bailer-tube A will duly receive and secure said bail in the notch 5 of the head 1 allowing of the elevating of the bailer -tube by suitably actuating the mandrel or tool and the fishing out of or withdrawing the bailer -tube out of the well, all of which is apparent.
It is incidentally observed that should the hail of the bailer -tube become torn away from the bailer"j-tube in the endeavor to extract or withdraw the latter from the well the baile1"-tube would be susceptible of being gripped from the inside by the insertion. or bringing into requisition an. archnary implement as a spear, such as is commonly employed, but otherwise as a rule unsuccessful for such purpose.
My invention, it will thus be seen, is extremely simple, inexpensive and effective for its intended purpose and is adapted to be readily applied for use and to substitute or take the place of the usual form of devices now employed for an analogous purpose.
I claim 1. A device of the type described, including a bifurcated head having the resulting slot therebetween with its greater portion from the lower end upwardly out of alinement with the longitudinal center of said head, the upper end of said slot having a laterally extended upper end terminal notch arranged in such longitudinal center, and a latch or dog pivoted to move out of the plane of said slot and to bridge the upper end of such slot.
2. A device of the type described, including a bifurcated head with lower divergent walls, the upper end of the resulting slot of the bifurcation being extended laterally and terminated in the longitudinal center of said head, one of said divergent walls extending out of alinement with said longitudinal center, and a pivoted dog having its free end adapted to overlie the entrance to the upper end lateral extension of said slot, said head having a recess for said dog to move in.
3. A device of the type described, including a bifurcated head having a longitudinal slot with lower divergent walls, the resulting slot of the bifurcation having an upper end laterally extended notch with a depression in its lower surface, said notch being in the longitudinal center of said head, and a pivoted dog hung in said head and adapted by gravity to cooperate with said notch.
In testimony whereof, I affix my signature, in presence of two witnesses.
JACOB H. cUBBI-son lVitnesses ED RYAN, M. PHILBERT.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.
. Washington, I). 0.