US1735937A - Rod grip - Google Patents
Rod grip Download PDFInfo
- Publication number
- US1735937A US1735937A US1735937DA US1735937A US 1735937 A US1735937 A US 1735937A US 1735937D A US1735937D A US 1735937DA US 1735937 A US1735937 A US 1735937A
- Authority
- US
- United States
- Prior art keywords
- rod
- grip
- concavity
- recess
- body member
- 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
- 238000009533 lab test Methods 0.000 description 4
- 230000002459 sustained Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000002093 peripheral Effects 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 101700026550 zig-4 Proteins 0.000 description 2
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/12—Rope clamps ; Rod, casings or tube clamps not secured to 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/918—Threadless nut
-
- 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.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44966—Clasp, clip, support-clamp, or required component thereof having gripping member shifted by operator
- Y10T24/44974—Threaded cylindrical rod and mating cavity
-
- 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
- Y10T279/19—Radially reciprocating jaws
- Y10T279/1913—Transverse-screw actuated
-
- 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
- Y10T403/00—Joints and connections
- Y10T403/71—Rod side to plate or side
- Y10T403/7171—Two rods encompassed by single connector
Definitions
- This invention relates more specifically to a gripping device designedto be employed in frictionally connecting the upper end of Well i pump rods to their reciprocating mechanism.
- the purposes of my invention are to provide a pump rod gripping device that will effectually grip the rod without roughening, or otherwise injuring its surface; that mav be M Vquickly secured to and removed from aurod 10' when it is desired to change its position; in
- My invention broadly comprises a cylindrical body member provided with a cylindrical concavity extending from the upper end downwardly and terminating adjacent zo the lower end, the bottom wall of the concavity being provided at one side of its centralvertical axis with a vertically disposed circular bore, a segmental recess being Lformed in the wall of the concavity and opening into the circular bore, a slip member having a longitudinally disposed concavity segmental in cross section, and set screws passing through the body member and engaging Athe slip to Vforce the same into frictional engagement with the rod to be gripped when the same is passed through the circular bore of the body member.
- Fig. 1 is a side elevation of a gripping device embodying t'he features of my invention suspended from the end of a wallging beam, the. polished pump rod being held in gripped relation.
- Fig. 2 is a central vertical section through. thel grip showing a rod mounted therein in gripped position.
- Fig. 3 is a top plan view with a rod gripped therein.
- Fig. 4 is a top plan View with therod slip removed therefrom.
- 5 designates a substantially, cylindrical body member, provided with a cylindrical concavity l6- that extends downwardlyy from the upper end and terminates adjacent the. bottom wall 7the concavity 6 being disposed to one side' of thecentral vertical axis ⁇ of the body member.'A
- the bottom wall 7 is provided with a vertical circular bore 8, for the passage therethrough of vthe upper end of thepump rod 9, that is to be engaged, and Vheld by the grip.
- a slip member 13 Disposed in the concavity 6, between the pump rod 9, and the wall of the concavity is a slip member 13, provided with a vertically Vextending groove 14,segmental in cross section, similar: in all respects to the recessformed in the thin 'cylindrical wall 15 of the body member, the distance between the vertical edges 16,17, being substantially the same' as the ldistance between the edges 11, '12,y of the verticallrecesslO.
- ⁇ Slip member 13 is provided'on its'peripheral surface with a vertically extending ilattened portion 18, oppositely disposed to groove 14. rv IBody.
- memberr 5 is provided inits cylindrical sidewall withfa pair of threaded bores 20', 21, opening into the concavity 6, in which are mounted set screws 22,23, the bearing ends of the screws abutting against the flattened pertionV 18 of the slip member to firmly clamp thepump rod 9 between the vertical edges 11, 12,- oiffthe recess 150, and the vertical Ledges 16,
- Trunnions are formed on the body member for the purpose of pivOtally attaching the lower ends of a hanger strap Q6, that is secured to one end of a walking beam, it being understood that other types of grip suspension means may be employed if desired.
- the bottom wall-7 of the body member provides a support or abutment which will prevent the slip member from moving independently of the grip.
- a body member having a cylindrical recess extending downwardly from its upper end, the bottom wall of Said recess being provided with a circular bore therethrough, the wall of said recess'having a longitudinal groove formed therein and opening into the circular bore formed in the bottom'wall of the body member, the side edges of said groove forming rod engaging edges, a slip member provided with a longitudinal groove segmental ⁇ in cross section,said slip member being normally supported by the bottom wallof the recess, the edges of said longitudinal groove forming rod engaging hereunto subscribed my name this 1st day of May, 1924.
Description
ROD GRIP Filed June 10, 1924 11|' T1 i I i I I .lm/enror:
A f MLU/1M D. SHArf'sR 5y aye@ IIILIIIIIILHHUHHH/M "NNW llll I IUII TV( l I I I l I l l l l l l Zig-4,
Patented Nov. 19, 1929v UNITED STATES WILLIAM D. SHAIEFER,
' non Application led June 10,
This invention relates more specifically to a gripping device designedto be employed in frictionally connecting the upper end of Well i pump rods to their reciprocating mechanism.
The purposes of my invention are to provide a pump rod gripping device that will effectually grip the rod without roughening, or otherwise injuring its surface; that mav be M Vquickly secured to and removed from aurod 10' when it is desired to change its position; in
which its gripping or clamping members are so arranged and constructed that heavy or unusual loads may be safely imposed thereon without endangering a slippage of the rod orthe gripping elements.
My invention broadly comprises a cylindrical body member provided with a cylindrical concavity extending from the upper end downwardly and terminating adjacent zo the lower end, the bottom wall of the concavity being provided at one side of its centralvertical axis with a vertically disposed circular bore, a segmental recess being Lformed in the wall of the concavity and opening into the circular bore, a slip member having a longitudinally disposed concavity segmental in cross section, and set screws passing through the body member and engaging Athe slip to Vforce the same into frictional engagement with the rod to be gripped when the same is passed through the circular bore of the body member.
In the accompanying drawings I have illustrated a preferred embodiment of my invention, it being understood however, that no limitation is necessarily made tothe pre-V cise structural details therein exhibited, but various changes, alterations and modifications may be resorted to within the scope of my invention when desired.
Fig. 1 is a side elevation of a gripping device embodying t'he features of my invention suspended from the end of a wallging beam, the. polished pump rod being held in gripped relation.
orv Bami, CALIFORNIA GRIP 1924. serai No. 719,224.
Fig. 2 is a central vertical section through. thel grip showing a rod mounted therein in gripped position. Y
Fig. 3 is a top plan view with a rod gripped therein.
Fig. 4 is a top plan View with therod slip removed therefrom. Y
Referring moreparticularly to the drawings, 5 designates a substantially, cylindrical body member, provided with a cylindrical concavity l6- that extends downwardlyy from the upper end and terminates adjacent the. bottom wall 7the concavity 6 being disposed to one side' of thecentral vertical axis `of the body member.'A The bottom wall 7 is provided with a vertical circular bore 8, for the passage therethrough of vthe upper end of thepump rod 9, that is to be engaged, and Vheld by the grip. `Formed in the cylindrical wall of the concavity 6 and opening into the bore 8, is a longitudinally disposed recess 10, segmental in cross section, the distance between the verticaledges 11, 12, of the recess being less than the diameter of the pump rod. Disposed in the concavity 6, between the pump rod 9, and the wall of the concavity is a slip member 13, provided with a vertically Vextending groove 14,segmental in cross section, similar: in all respects to the recessformed in the thin 'cylindrical wall 15 of the body member, the distance between the vertical edges 16,17, being substantially the same' as the ldistance between the edges 11, '12,y of the verticallrecesslO. `Slip member 13 is provided'on its'peripheral surface with a vertically extending ilattened portion 18, oppositely disposed to groove 14. rv IBody. memberr 5 is provided inits cylindrical sidewall withfa pair of threaded bores 20', 21, opening into the concavity 6, in which are mounted set screws 22,23, the bearing ends of the screws abutting against the flattened pertionV 18 of the slip member to firmly clamp thepump rod 9 between the vertical edges 11, 12,- oiffthe recess 150, and the vertical Ledges 16,
17, of the groove 14 formed in the slip member. As the bore 8 of the body member 5 is slightly larger in diameter than the diameter of the pump rod, and further, as the radii of the recess l0 and the groove 14 are less than t-he radius of the pump rod, it will be clear that the only portions of the recess 10 and groove 14 that contact with the rod are their vertical edges.
It will be apparent from the above that by forming grooves inv the wall of the concavity and in the slip member, that the rod will be held in gripped relation solely by the vertical edges of the recess and groove, and as the set screws are tightened a wedging action will be set up, which action greatly increases the frictional grip on the rod. y
Trunnions are formed on the body member for the purpose of pivOtally attaching the lower ends of a hanger strap Q6, that is secured to one end of a walking beam, it being understood that other types of grip suspension means may be employed if desired. The bottom wall-7 of the body member provides a support or abutment which will prevent the slip member from moving independently of the grip.'
In actual practice I have ascertained that my improved gripping device in pulling tests will develop a greater gripping action thanV grips utilized for a similar nature now on themarlet. In a laboratory test conducted by ,Competent engineers a polished steel rod of 11/8 inches in diameter, was inserted in my rod grip and the set screws were tightened by applying a Trimo wrench thereto; A ten-- sile load on the polished rod was then applied until it slipped, it requiring a maximum load of 39,300 pounds before a slippage occured.
y The above laboratory test developed the fact that my improved gripping mechanism sustained a load of nearly 10,000 pounds in excess of the maxi-mum loads sustained by other well known grips in similar tests.
It will be understood that my device is not designed to be used exclusively in connection with polished rods of oill well pumps, but is readily adaptable for use wherever a 'triction hold is desired on a round bar or cable,
What I claim is:
In a rod grip, a body member having a cylindrical recess extending downwardly from its upper end, the bottom wall of Said recess being provided with a circular bore therethrough, the wall of said recess'having a longitudinal groove formed therein and opening into the circular bore formed in the bottom'wall of the body member, the side edges of said groove forming rod engaging edges, a slip member provided with a longitudinal groove segmental `in cross section,said slip member being normally supported by the bottom wallof the recess, the edges of said longitudinal groove forming rod engaging hereunto subscribed my name this 1st day of May, 1924.
WILLIAM D. SHAFFER.
Publications (1)
Publication Number | Publication Date |
---|---|
US1735937A true US1735937A (en) | 1929-11-19 |
Family
ID=3419398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US1735937D Expired - Lifetime US1735937A (en) | Rod grip |
Country Status (1)
Country | Link |
---|---|
US (1) | US1735937A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2874436A (en) * | 1955-03-21 | 1959-02-24 | Cameron Iron Works Inc | Slip assembly |
US3058386A (en) * | 1957-09-25 | 1962-10-16 | Earle L Morrow | Binding device with contracting segments having radius smaller than rod engaged thereby |
WO2002055329A3 (en) * | 2001-01-11 | 2003-12-11 | M M Robert Haddock | Multi-piece clamp for standing seams |
US20050217203A1 (en) * | 2004-04-05 | 2005-10-06 | Haddock Robert M | Multi-piece attachment mounting clamp for trapezoidal rib profile panels |
US9085900B2 (en) | 2013-04-22 | 2015-07-21 | Dustin M. M. Haddock | Rib mounting device with pivoting insert |
US10443896B2 (en) | 2016-07-29 | 2019-10-15 | Rmh Tech Llc | Trapezoidal rib mounting bracket with flexible legs |
US10502457B2 (en) | 2010-03-03 | 2019-12-10 | Robert M. M. Haddock | Photovoltaic module mounting assembly |
US10634175B2 (en) | 2011-12-29 | 2020-04-28 | Rmh Tech Llc | Mounting device for nail strip panels |
US10640980B2 (en) | 2016-10-31 | 2020-05-05 | Rmh Tech Llc | Metal panel electrical bonding clip |
US10731355B2 (en) | 2011-02-25 | 2020-08-04 | Rmh Tech Llc | Mounting device for building surfaces having elongated mounting slot |
US10903785B2 (en) | 2018-03-21 | 2021-01-26 | Rmh Tech Llc | PV module mounting assembly with clamp/standoff arrangement |
US10948002B2 (en) | 2018-12-14 | 2021-03-16 | Rmh Tech Llc | Mounting device for nail strip panels |
US11041310B1 (en) | 2020-03-17 | 2021-06-22 | Rmh Tech Llc | Mounting device for controlling uplift of a metal roof |
US11352793B2 (en) | 2020-03-16 | 2022-06-07 | Rmh Tech Llc | Mounting device for a metal roof |
US11774143B2 (en) | 2017-10-09 | 2023-10-03 | Rmh Tech Llc | Rail assembly with invertible side-mount adapter for direct and indirect mounting applications |
-
0
- US US1735937D patent/US1735937A/en not_active Expired - Lifetime
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2874436A (en) * | 1955-03-21 | 1959-02-24 | Cameron Iron Works Inc | Slip assembly |
US3058386A (en) * | 1957-09-25 | 1962-10-16 | Earle L Morrow | Binding device with contracting segments having radius smaller than rod engaged thereby |
US7100338B2 (en) | 1995-06-07 | 2006-09-05 | Caught Fish Enterprises, Llc | Multi-piece clamp for standing seams |
US20040134151A1 (en) * | 2001-01-11 | 2004-07-15 | Haddock Robert M.M. | Multi-piece clamp for standing seams |
US7013612B2 (en) | 2001-01-11 | 2006-03-21 | Haddock Robert M M | Multi-piece clamp for standing seams |
WO2002055329A3 (en) * | 2001-01-11 | 2003-12-11 | M M Robert Haddock | Multi-piece clamp for standing seams |
US20050217203A1 (en) * | 2004-04-05 | 2005-10-06 | Haddock Robert M | Multi-piece attachment mounting clamp for trapezoidal rib profile panels |
US7703256B2 (en) | 2004-04-05 | 2010-04-27 | Haddock Robert M M | Multi-piece attachment mounting clamp for trapezoidal rib profile panels |
US10502457B2 (en) | 2010-03-03 | 2019-12-10 | Robert M. M. Haddock | Photovoltaic module mounting assembly |
US11035126B2 (en) | 2011-02-25 | 2021-06-15 | Rmh Tech Llc | Mounting device for building surfaces having elongated mounting slot |
US11885139B2 (en) | 2011-02-25 | 2024-01-30 | Rmh Tech Llc | Mounting device for building surfaces having elongated mounting slot |
US10731355B2 (en) | 2011-02-25 | 2020-08-04 | Rmh Tech Llc | Mounting device for building surfaces having elongated mounting slot |
US10634175B2 (en) | 2011-12-29 | 2020-04-28 | Rmh Tech Llc | Mounting device for nail strip panels |
US11333179B2 (en) | 2011-12-29 | 2022-05-17 | Rmh Tech Llc | Mounting device for nail strip panels |
US9085900B2 (en) | 2013-04-22 | 2015-07-21 | Dustin M. M. Haddock | Rib mounting device with pivoting insert |
US10859292B2 (en) | 2016-07-29 | 2020-12-08 | Rmh Tech Llc | Trapezoidal rib mounting bracket with flexible legs |
US10443896B2 (en) | 2016-07-29 | 2019-10-15 | Rmh Tech Llc | Trapezoidal rib mounting bracket with flexible legs |
US11573033B2 (en) | 2016-07-29 | 2023-02-07 | Rmh Tech Llc | Trapezoidal rib mounting bracket with flexible legs |
US11085188B2 (en) | 2016-10-31 | 2021-08-10 | Rmh Tech Llc | Metal panel electrical bonding clip |
US10640980B2 (en) | 2016-10-31 | 2020-05-05 | Rmh Tech Llc | Metal panel electrical bonding clip |
US11808043B2 (en) | 2016-10-31 | 2023-11-07 | Rmh Tech Llc | Metal panel electrical bonding clip |
US11774143B2 (en) | 2017-10-09 | 2023-10-03 | Rmh Tech Llc | Rail assembly with invertible side-mount adapter for direct and indirect mounting applications |
US11616468B2 (en) | 2018-03-21 | 2023-03-28 | Rmh Tech Llc | PV module mounting assembly with clamp/standoff arrangement |
US10903785B2 (en) | 2018-03-21 | 2021-01-26 | Rmh Tech Llc | PV module mounting assembly with clamp/standoff arrangement |
US11668332B2 (en) | 2018-12-14 | 2023-06-06 | Rmh Tech Llc | Mounting device for nail strip panels |
US10948002B2 (en) | 2018-12-14 | 2021-03-16 | Rmh Tech Llc | Mounting device for nail strip panels |
US11739529B2 (en) | 2020-03-16 | 2023-08-29 | Rmh Tech Llc | Mounting device for a metal roof |
US11512474B2 (en) | 2020-03-16 | 2022-11-29 | Rmh Tech Llc | Mounting device for a metal roof |
US11352793B2 (en) | 2020-03-16 | 2022-06-07 | Rmh Tech Llc | Mounting device for a metal roof |
US11788291B2 (en) | 2020-03-17 | 2023-10-17 | Rmh Tech Llc | Mounting device for controlling uplift of a metal roof |
US11041310B1 (en) | 2020-03-17 | 2021-06-22 | Rmh Tech Llc | Mounting device for controlling uplift of a metal roof |
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