US910062A - Grapple. - Google Patents
Grapple. Download PDFInfo
- Publication number
- US910062A US910062A US42682108A US1908426821A US910062A US 910062 A US910062 A US 910062A US 42682108 A US42682108 A US 42682108A US 1908426821 A US1908426821 A US 1908426821A US 910062 A US910062 A US 910062A
- Authority
- US
- United States
- Prior art keywords
- levers
- jaws
- grapple
- pipe
- links
- 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
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
- B66C1/30—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
- E21B19/07—Slip-type elevators
-
- 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
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/39—Cord and rope holders
- Y10T24/3936—Pivoted part
- Y10T24/394—Cam lever
-
- 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
- Y10T279/17179—Wedge
Definitions
- My invention relates to grapples, and particularly to that type which are used in connection with the hoisting of well pipes.
- the object of the invention is to provide a device of this character which will be etlicent in operation, cheap to manufacture and which is easily applied to the pipes.
- a further object of the invention is the provision of a device of this character which will positivelj7 grab the pipe and grip it with increased firmness as the tension thereupon is increased and will immediately release the pipe when the strain upon the grapple is relieved.
- the invention consists of certain novel features of construction, combination and arrangement of parts, as will be more fully described and particularly pointed out in the appended claim.
- Figure l is a side elevation
- Fig. 2 is a horizontal section on the line 2 2 of Fig. 1.
- l represents the pipe which is gripped between the jaws 2, having semi-cylindrical recessed inner faces formed in their inner edges for engaging the pipe as will be hereinafter described.
- These jaws have lugs 3, projecting out from their side edges which are pivotally attached toV the upper inner end of the levers 4.
- the bolts 6, which connect the links to the levers are made removable so as to permit relative Specification of Letters Patent.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Electric Cable Installation (AREA)
Description
J. A. HOLMBERG.
GRAPPLE.
APPLIOATION FILED APBJS, 1908.
910,062. Patented Jan. 19, 1909.
MMM @M nas NuRRls rsrsrvs co4. wAsHmsroN. n. c,
UNITED STATES PATENT OFFIOE.
JOHN A. HOLMBERG, OF LINDSBORG, KANSAS.
GRAPPLE.
To all whom it 'may concern:
Be it known that I, JOHN A. HOLMBERG, a citizen of the United States, residing at Lindsborg, in the county of McPherson and State of Kansas, have invented certain new and useful Improvements in Grapples; and I do declare the following to be 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.
My invention relates to grapples, and particularly to that type which are used in connection with the hoisting of well pipes.
The object of the invention is to provide a device of this character which will be etlicent in operation, cheap to manufacture and which is easily applied to the pipes.
A further object of the invention is the provision of a device of this character which will positivelj7 grab the pipe and grip it with increased firmness as the tension thereupon is increased and will immediately release the pipe when the strain upon the grapple is relieved.
I/Vith these and other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts, as will be more fully described and particularly pointed out in the appended claim.
In the accompanying drawings, Figure l is a side elevation, Fig. 2 is a horizontal section on the line 2 2 of Fig. 1.
Referring more especially to the drawings, l represents the pipe which is gripped between the jaws 2, having semi-cylindrical recessed inner faces formed in their inner edges for engaging the pipe as will be hereinafter described. These jaws have lugs 3, projecting out from their side edges which are pivotally attached toV the upper inner end of the levers 4. Suitable links 5, pivotally connect the lower inner ends of the levers 4 and straddle thejaws 2. The bolts 6, which connect the links to the levers are made removable so as to permit relative Specification of Letters Patent.
Application filed April 13, 1908.
Patented Jan. 19, 1909.
Serial No. 426,821.
movement of the jaws and levers so that the pipe may be properly inserted between the jaws 2. The outer ends of the levers are connected to converging links 7 which are brought together at their upper ends by a strain ring, which in this instance is connected in any suitable manner to a power device, suoli as a lever, or a winch. Vhen a strain is put upon the levers 4 to raise them, and the pipe is in position between the jaws 2, the top inner end of the levers moves inwardly and forces the jaws against the pipe to clamp it. The harder it is to draw from the ground the greater the gripping quality of the grapple.
From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.
Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention as defined in the appended claim.
Having thus described my invention what I claim and desire to secure by Letters Patent is In a device of the class described, a pair of jaws having vertical straight gripping faces, a pivotal lug extending from each jaw, triangular levers having one of their corners pivotally connected to the lugs, links straddling the jaws and pivotally connected to the levers at another corner thereof, and strain links connected to the remaining corners of said levers and adapted to operate the same.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
JOHN A. HOLMBERG.
Witnesses:
ALMA J. PETERSON, GUs'r JOHNSON.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42682108A US910062A (en) | 1908-04-13 | 1908-04-13 | Grapple. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42682108A US910062A (en) | 1908-04-13 | 1908-04-13 | Grapple. |
Publications (1)
Publication Number | Publication Date |
---|---|
US910062A true US910062A (en) | 1909-01-19 |
Family
ID=2978500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US42682108A Expired - Lifetime US910062A (en) | 1908-04-13 | 1908-04-13 | Grapple. |
Country Status (1)
Country | Link |
---|---|
US (1) | US910062A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2603525A (en) * | 1951-04-12 | 1952-07-15 | Pipe clamp | |
US2924484A (en) * | 1955-04-04 | 1960-02-09 | William A Tolsma | Drum grabs |
US4586744A (en) * | 1984-06-18 | 1986-05-06 | Price Marvin L | Apparatus for lifting and handling an object |
US4893860A (en) * | 1988-07-15 | 1990-01-16 | Azerbaidjansky Nauchno-Issledovatelsky I Proektno-Konstruktorsky Institut Neftyanogo Mashino-Stroeniya | Device for gripping and suspending drill pipe stand |
-
1908
- 1908-04-13 US US42682108A patent/US910062A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2603525A (en) * | 1951-04-12 | 1952-07-15 | Pipe clamp | |
US2924484A (en) * | 1955-04-04 | 1960-02-09 | William A Tolsma | Drum grabs |
US4586744A (en) * | 1984-06-18 | 1986-05-06 | Price Marvin L | Apparatus for lifting and handling an object |
US4893860A (en) * | 1988-07-15 | 1990-01-16 | Azerbaidjansky Nauchno-Issledovatelsky I Proektno-Konstruktorsky Institut Neftyanogo Mashino-Stroeniya | Device for gripping and suspending drill pipe stand |
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