US956995A - Grapple. - Google Patents
Grapple. Download PDFInfo
- Publication number
- US956995A US956995A US54688910A US1910546889A US956995A US 956995 A US956995 A US 956995A US 54688910 A US54688910 A US 54688910A US 1910546889 A US1910546889 A US 1910546889A US 956995 A US956995 A US 956995A
- Authority
- US
- United States
- Prior art keywords
- levers
- grapple
- shaft
- prongs
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000003141 lower extremity Anatomy 0.000 description 5
- 210000001364 upper extremity Anatomy 0.000 description 3
- 241000235319 Havinthus Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
- E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
Definitions
- ANDREW a (IR/mm cm PHOYB-LIYNWAPVIIRS. WASMNGTON a c.
- PETER I1 PETERSON, OF KELVIN, NORTH DAKOTA.
- My invention relates to improvements in grapples and more particularly one especially designed for use in removing boulders, tools and other objects out of bored wells, although it may be employed for other purposes.
- the object of the invention is to provide a simple and practical device of this character which will be effective in accomplishing the purpose intended.
- the invention consists of the novel construc-.
- Figure 1 is a side elevation of my im proved grapple showing it open;
- Fig. 2 is a vertical section of the same showing it closed;
- Fig. 3 is a vertical section taken at right angles to the plane of Fig. 2.
- FIG. 1 denotes the body member of the grapple which is formed from a heavy metal strap by bending the same into substantially U-shape to provide a horizontal top portion 2 and depending side portions 3, the lower ends of which are inwardly otl'set but disposed in spaced relation to receive between them two crossed levers 1.
- the latter are fulcrumed intermediate their ends at their points of intersection by a transverse bolt or pivot 5 which passes through the lower extremities of the side portions or arms 3 of the body.
- the lower ends of the lovers 4 are curved longitudinally and carry grappling prongs as shown, or other grappling devices.
- the lower extremities of the lever 1 form central prongs 6 arranged bet-ween side prongs 7 formed by two metal bars curved longitudinally and tapered, and having their converging upper ends secured on opposite sides of the levers 4 by transverse bolts or fastenings 8. WVhile this is the preferred manner of constructing and arranging the grappling prongs it will be understood that I do not wish to be limited to this construction.
- the upper ends of the levers 1 are offset laterally in opposite directions, as shown at 9, and also curved outwardly in opposite directions as shown at 10, whereby the upper extremities of said levers will be disposed in spaced diverging relation but in the same transverse vertical plane.
- Said upper extremities of the levers are connected by pairs of links 11 to diametrically opposed lugs 12 carried by a screw sleeve or nut 13, which latter is adapted to travel on a screw shaft 14 which also serves as a hanger for the device.
- the lower extremity of the screw shaft 11 rotates in a central opening 15 in the top 2 of the body 1 and it has a swivel connection with said body by providing on said lower extremity of the shaft a circular head 16 which is retained in the top of the U-shaped body 1 by an inverted cross plate 17 screwed by bolts or rivets 18, as clearly shown in Fig. 3.
- the upper extremity of the screw shaft '14- is square or of polygonal shape as shown at 1%) to receive a suitably shaped socket member on a rod or shaft (not illustrated) adapted to be used for lowering the tool into a well and then rotating the shaft 1 1 to cause the jaws of the grapple levers to close upon a boulder, tool or other object in the well.
- the shaft 14 is screwed to bring the nut 13 close to the body 1 so that the links 11 throw the upper ends of the levers 1 outwardly and simultaneously spread the prongs or jaws of the device apart.
- the shaft 141 is screwed to move the nut 13 upwardly on the shaft and thereby cause the jaws or prongs to grip the object.
- a device of the character described comprising a body, a pair of gripping levers fulcrumed thereon, a screw having a swivel connection with the body, a traveling nut on the screw, and operative connections between the nut and levers.
- a device of the character described comprising a body of inverted U-shape, a pair of crossed levers fulcrumed intermediate their ends in the lower portion of the In testimony whereof I hereunto affix my body and having gripping aws 0r prongs signature in the presence of two witnesseses. at their lower extremities an upri ht screw V T having its lower end swiiieled in the top of PETER PETERSOl ⁇ ' 5 the body atraveling nut on said screw, and W'itnesses:
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Food-Manufacturing Devices (AREA)
Description
P. L. PETERSON. GRAPPLE. AYPLIOATION rum) mu. 2; 1910.
956,995. Patented May 3, 1910.
ANDREW a (IR/mm cm PHOYB-LIYNWAPVIIRS. WASMNGTON a c.
PETER I1. PETERSON, OF KELVIN, NORTH DAKOTA.
GRAPPLE.
Specification of Letters Patent.
v Patented May 3, 1910.
Application filed March 2, 1910. Serial No. 546,889.
To all whom it may concern:
Be it known that I, PETER L. PETERSON, a citizen of the United States, residing at Kelvin, in the county of Rolette and State of North Dakota, have invented certain new and useful Improvements in Grapples, of which the following is a specification, referonce being had to the accompanying drawmgs.
My invention relates to improvements in grapples and more particularly one especially designed for use in removing boulders, tools and other objects out of bored wells, although it may be employed for other purposes.
The object of the invention is to provide a simple and practical device of this character which will be effective in accomplishing the purpose intended.
\Vith the above and other objects in View,
the invention consists of the novel construc-.
tion, combination and arrangement of arts, hereinafter fully described and claimec, and illustrated in the accompanying drawings in which Figure 1 is a side elevation of my im proved grapple showing it open; Fig. 2 is a vertical section of the same showing it closed; and Fig. 3 is a vertical section taken at right angles to the plane of Fig. 2.
Referring more particularly to the drawings 1 denotes the body member of the grapple which is formed from a heavy metal strap by bending the same into substantially U-shape to provide a horizontal top portion 2 and depending side portions 3, the lower ends of which are inwardly otl'set but disposed in spaced relation to receive between them two crossed levers 1. The latter are fulcrumed intermediate their ends at their points of intersection by a transverse bolt or pivot 5 which passes through the lower extremities of the side portions or arms 3 of the body. The lower ends of the lovers 4 are curved longitudinally and carry grappling prongs as shown, or other grappling devices. As illustrated, the lower extremities of the lever 1 form central prongs 6 arranged bet-ween side prongs 7 formed by two metal bars curved longitudinally and tapered, and having their converging upper ends secured on opposite sides of the levers 4 by transverse bolts or fastenings 8. WVhile this is the preferred manner of constructing and arranging the grappling prongs it will be understood that I do not wish to be limited to this construction. The upper ends of the levers 1 are offset laterally in opposite directions, as shown at 9, and also curved outwardly in opposite directions as shown at 10, whereby the upper extremities of said levers will be disposed in spaced diverging relation but in the same transverse vertical plane. Said upper extremities of the levers are connected by pairs of links 11 to diametrically opposed lugs 12 carried by a screw sleeve or nut 13, which latter is adapted to travel on a screw shaft 14 which also serves as a hanger for the device. The lower extremity of the screw shaft 11 rotates in a central opening 15 in the top 2 of the body 1 and it has a swivel connection with said body by providing on said lower extremity of the shaft a circular head 16 which is retained in the top of the U-shaped body 1 by an inverted cross plate 17 screwed by bolts or rivets 18, as clearly shown in Fig. 3. The upper extremity of the screw shaft '14- is square or of polygonal shape as shown at 1%) to receive a suitably shaped socket member on a rod or shaft (not illustrated) adapted to be used for lowering the tool into a well and then rotating the shaft 1 1 to cause the jaws of the grapple levers to close upon a boulder, tool or other object in the well.
In operation, the shaft 14 is screwed to bring the nut 13 close to the body 1 so that the links 11 throw the upper ends of the levers 1 outwardly and simultaneously spread the prongs or jaws of the device apart. When the parts are in this position, see Fig. 1, the tool is lowered into the well and when it reaches the bottom or engages the object to be lifted the shaft 141: is screwed to move the nut 13 upwardly on the shaft and thereby cause the jaws or prongs to grip the object.
Havin thus described the invention, what is claims is:
1. A device of the character described comprising a body, a pair of gripping levers fulcrumed thereon, a screw having a swivel connection with the body, a traveling nut on the screw, and operative connections between the nut and levers.
2. A device of the character described comprising a body of inverted U-shape, a pair of crossed levers fulcrumed intermediate their ends in the lower portion of the In testimony whereof I hereunto affix my body and having gripping aws 0r prongs signature in the presence of two Witnesses. at their lower extremities an upri ht screw V T having its lower end swiiieled in the top of PETER PETERSOl\' 5 the body atraveling nut on said screw, and W'itnesses:
links connecting said nut to the upper eX- VVEsLEY FAssn'r'r,
tremi-ties of the levers. H. SALMONSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54688910A US956995A (en) | 1910-03-02 | 1910-03-02 | Grapple. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54688910A US956995A (en) | 1910-03-02 | 1910-03-02 | Grapple. |
Publications (1)
Publication Number | Publication Date |
---|---|
US956995A true US956995A (en) | 1910-05-03 |
Family
ID=3025398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US54688910A Expired - Lifetime US956995A (en) | 1910-03-02 | 1910-03-02 | Grapple. |
Country Status (1)
Country | Link |
---|---|
US (1) | US956995A (en) |
-
1910
- 1910-03-02 US US54688910A patent/US956995A/en not_active Expired - Lifetime
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