US526358A - Drill-rod grab - Google Patents
Drill-rod grab Download PDFInfo
- Publication number
- US526358A US526358A US526358DA US526358A US 526358 A US526358 A US 526358A US 526358D A US526358D A US 526358DA US 526358 A US526358 A US 526358A
- Authority
- US
- United States
- Prior art keywords
- catches
- grab
- rod
- drill
- cylinder
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000010959 steel Substances 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
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17128—Self-grasping
- Y10T279/17171—One-way-clutch type
- Y10T279/17188—Side detent
Definitions
- My invention relates to certain new and useful improvements in drill-rod grabs, and has for its objectto provide acheap and sirnple grab that will readily pass over the ends of broken rods in the well and firmly grasp them whereby they may be withdrawn, the grab being adapted for withdrawing either wooden or iron rods and also rods either with or without couplings.
- the letter A indicates a metallic cylinder, preferably of steel, provided at its upper end with any suitable or well known means for attaching the usual rod for lowering the grab into the well.
- the cylinder or grab A at its lower end is beveled outwardly, at a, so as to facilitate the grab dropping easily over the end of the rod to be withdrawn.
- the grab is provided with inwardly projecting catches adapted to grasp the od arranged opposite each other, as lndlca ed at B, B, and C, C. Said catches are struck up from the cylinderAby cutting away suitable portions of the cylinder, as at b and c, and bending the free ends of said catches inwardly, as shown more clearlyin Fig. 2.
- the metal is cut away about the bottom of the catches, as indicated at d, d, thus making the catches narrowest at this point, whereby greater elasticity is imparted thereto.
- the catches C, C are similar in all respects to the catches B, B, excepting that instead of being forked they are provided with semi-circular recesses f,f, at their upper ends which flt the opposite sides of the rods. This form of catch is especially designed for grasping iron rods, the catches B, B, being intended for use with wooden rods.
- the catches B, B, and C, C are made of such length that it is impossible for them to be pulled downward or back upon the interior of the cylinder by the weight of the rod, or to cut the rod in two.
- the smallest sized cylinder adapted to fit over the rods may be employed since the catches do not operate to decrease the inside diameter of the pipe, but permit the grab to be passed over rods from the smallest size up to rods of the sanne diameter as the inside diameter of cylinder.
- the object of outwardly beveling the lower end of the cylinder- is to sharpen the same and to facilitate the entrance of the tools into the cylinder, and the purpose of slitting the ends is to enable the same to yield or expand outwardly.
- a drill rod grab consisting of a cylinder provided With oppositely disposed inwardly proj ecting spring catches, said catches being struck out of the material of the cylinder, and
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)
- Earth Drilling (AREA)
Description
(No ModeL-)v Y DRILL ROD GRAB.
No. 526,358. l y Patented Sept. 18, 1894.
UNITED STATES PATENT OEEICE.
WILLIAM H. WISHERD, OF BIRD CITY, KANSAS.
DRILL-ROD GRAB.
SPECIFICATION forming part of Letters Patent No. 526,358, dated September 18, 1894.
Application filed .Tune 13, 1893.
" City, in the county of Cheyenne and State of Iss Kansas, have invented certain new and useful Improvements in iDrill-Rod Grabs; and I do hereby 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 1t appertains to make and use the same.
My invention relates to certain new and useful improvements in drill-rod grabs, and has for its objectto provide acheap and sirnple grab that will readily pass over the ends of broken rods in the well and firmly grasp them whereby they may be withdrawn, the grab being adapted for withdrawing either wooden or iron rods and also rods either with or without couplings.
To these ends my invention consists in the novel construction and combination of parts hereinafter fully described and finally specliically pointed out in the claim, due referencebeing had to the accompanying drawings forming a part of this specification, whereln- Figure l is a side elevation of myimproved devlce, and Fig. 2 a vertical section thereof.
Referring to the drawings the letter A indicates a metallic cylinder, preferably of steel, provided at its upper end with any suitable or well known means for attaching the usual rod for lowering the grab into the well. The cylinder or grab A at its lower end is beveled outwardly, at a, so as to facilitate the grab dropping easily over the end of the rod to be withdrawn. The grab is provided with inwardly projecting catches adapted to grasp the od arranged opposite each other, as lndlca ed at B, B, and C, C. Said catches are struck up from the cylinderAby cutting away suitable portions of the cylinder, as at b and c, and bending the free ends of said catches inwardly, as shown more clearlyin Fig. 2. The metal is cut away about the bottom of the catches, as indicated at d, d, thus making the catches narrowest at this point, whereby greater elasticity is imparted thereto.
The upper ends of the catches B, B, are forked, as at e, e, and bent inwardly toward Serial No. 477,473. (No model.)
each other, the construction being such that when the cylinder A is lowered down over the rod to Vbe withdrawn the forked ends of the catches B, B, will embrace the rod upon opposite sides and firmly grasp the same, permitting the rod to be lifted out of the well with the grab. The catches C, C, are similar in all respects to the catches B, B, excepting that instead of being forked they are provided with semi-circular recesses f,f, at their upper ends which flt the opposite sides of the rods. This form of catch is especially designed for grasping iron rods, the catches B, B, being intended for use with wooden rods. The catches B, B, and C, C, are made of such length that it is impossible for them to be pulled downward or back upon the interior of the cylinder by the weight of the rod, or to cut the rod in two.
WhileI have shown only two sets of catches I wish it to be understood that in practice any desired number may be employed.
By constructing the device as above described the smallest sized cylinder adapted to fit over the rods may be employed since the catches do not operate to decrease the inside diameter of the pipe, but permit the grab to be passed over rods from the smallest size up to rods of the sanne diameter as the inside diameter of cylinder.
The object of outwardly beveling the lower end of the cylinder-is to sharpen the same and to facilitate the entrance of the tools into the cylinder, and the purpose of slitting the ends is to enable the same to yield or expand outwardly.
Having described my invention, what I claim is- A drill rod grab consisting of a cylinder provided With oppositely disposed inwardly proj ecting spring catches, said catches being struck out of the material of the cylinder, and
G.. J. KNUDT, A. STEPHENsoN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US526358A true US526358A (en) | 1894-09-18 |
Family
ID=2595148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US526358D Expired - Lifetime US526358A (en) | Drill-rod grab |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US526358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848268A (en) * | 1955-11-29 | 1958-08-19 | Harry Cambeis | Drill bit retriever |
-
0
- US US526358D patent/US526358A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2848268A (en) * | 1955-11-29 | 1958-08-19 | Harry Cambeis | Drill bit retriever |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US526358A (en) | Drill-rod grab | |
| US572860A (en) | Well-point | |
| US1547025A (en) | Tubing anchor | |
| US2329461A (en) | Mud trap drilling bit | |
| US1028759A (en) | Well-tubing lock. | |
| US792905A (en) | Flower-pot holder. | |
| US49628A (en) | Improved extractor of tubes, drills | |
| US818928A (en) | Pipe-puller. | |
| US358132A (en) | Fbancis m | |
| US1362883A (en) | Fishing-tool | |
| US2689763A (en) | Grapple | |
| US349192A (en) | House | |
| US2823065A (en) | Pipe puller | |
| US102572A (en) | Improvement in tube-wells | |
| US1381074A (en) | Pipe-engaging slip for rotaries | |
| US531347A (en) | Nathan e | |
| US589607A (en) | Fishing-tool for oil-wells | |
| US1529544A (en) | Rotary jar | |
| US654875A (en) | Tube-well. | |
| US1528089A (en) | Fishing tool | |
| US1147791A (en) | Anchor-drill. | |
| US3276522A (en) | Well bore wall cleaner | |
| US562238A (en) | Sucker-rod socket | |
| US836065A (en) | Pipe-pulling device. | |
| US403877A (en) | Half to joseph pr act |