US1578696A - Polish-rod clamp - Google Patents

Polish-rod clamp Download PDF

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Publication number
US1578696A
US1578696A US61150A US6115025A US1578696A US 1578696 A US1578696 A US 1578696A US 61150 A US61150 A US 61150A US 6115025 A US6115025 A US 6115025A US 1578696 A US1578696 A US 1578696A
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US
United States
Prior art keywords
gate
rod
polish
clamp
rod clamp
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
Application number
US61150A
Inventor
Clyde S Wright
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Supply Co
Original Assignee
Nat Supply Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nat Supply Co filed Critical Nat Supply Co
Priority to US61150A priority Critical patent/US1578696A/en
Application granted granted Critical
Publication of US1578696A publication Critical patent/US1578696A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/18—Pivoted jaw

Definitions

  • Fig. 1 is a side elevation of my clamp showing a rod clamped thereby; Fig. 2, a top view with a portion broken away, and Fig. 3, a plan view with the gates open and a pore05 broken 01f. 1
  • 1 designates the body 25 member of the clamp. It has between its ends a U-shaped recess 2 having in its back face 3 the groove 4- to receive one side of the polish rod 5.
  • the body has at its ends and substantially in line with the face 3 the trunnions 6 to which mechanism for reciprocating the clamp is attached.
  • the body gate or clamping member which closes the open side of the U-shaped recess.
  • the gate has a pair of hinge members 8 working in slots 9 in the outer end of the side wall 11 of the recess 2, the hinge members being held in place by the hinge pin 10.
  • the body gate has an inwardly pro-- jecting portion 12 which when the gate 1s closed extends into the recess 2 and the face 13 lying close to and parallel wlth the face 3.
  • the face 13 has a groove'14 slmllar to the groove 4 and lying parallel therewith and directly opposite thereto, so that the two grooves 4 and 14 may engage the opposite sides of the polish rod or other bar or rod.
  • the remaining end wall of the recess 2 has the ears 17 between which, the huge 9 the recess 22 to receive the eye bolt 23 through whose eye the hinge pin 10 extends.
  • the eye bolt swings on the pin '10 and has the clamping nut 24 threaded thereon.
  • the free end of the lever 19 has the open slot 25 into which the bolt may be swung when the lever 19 is in operative position as shown in Fig. 1.
  • the nut 24 may be screwed down by the aid of the hand lever 26 against the back of the lever 19 to cause the latter by means of the shoulder 21 toforce the body member inwardly so as to grip the rod 5 firmly in the grooves 4 and 14.
  • I claim- 1 A body member having a rod-engaging surface, a body gate member hinged at one end to the body member at one side of said surface, a clamping gate hinged at. one end to the body member at the opposite side of the said surface and having a portion close to its pivot to engage the free end of the body gate member and force the latter toward the body member and into gripping contact with a rod engaging the said surface, and power means carried by one of the said members and applicable to the free end of the clamping gate member to increase the pressure of the said portion against the body gate.
  • a clamping gate hinged at one end to the i body member at the opposite side of the said surface and having a "portion close to its pivot to engage the free end of the body gate and force the latter toward the body member and into gripping contact with a, rod engaging the said surface, a threaded bolt having an eye pivoted on the pivot of the body gate,

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Clamps And Clips (AREA)

Description

March 30 1926. 4 1,578,696-
C. S. WRIGHT POLISH ROD CLAMP Filed Oct. '7, 1925 INVENTORS hf rug 1f BY 7 Patented Mar. 30, 1926.
UNITED STATES owns a. WRIGHT,
OF TOLEDO, OHIO, ASSIGNOR TO THE NATIONAL SUPPLY COMPANY,
OF TOLEDO, OHIO, A CORPORATION OF OHIO.
POLISH-ROD CLAMP.
Application filed October 7, 1925. Serial No. 61,150.
To aZZ whomz't may concern:
Be it known that I, CLYDE S.'WRIGHT, a citizen of the United States, residing at Toledo, in the county of Lucas and State of 3 Ohio, have invented new and useful I mprovements in Polish-Rod Clamps, of which the following is a specification. My invention relates to clamps deslgned particularly for gripping the pol1sh rods of oil well pumps, but I do not l1m1t the lnvention to that purpose as it may be used whereever a strong eificient rod clamp 1s needed.
It is the object of this invention to provide a clamp by which the actuatlng power is greatly multiplied through the action of a compond lever mechanism operated by a screw or equivalent device.
Referring to the accompanying drawlng, Fig. 1 is a side elevation of my clamp showing a rod clamped thereby; Fig. 2, a top view with a portion broken away, and Fig. 3, a plan view with the gates open and a pore05 broken 01f. 1 On the drawing, 1 designates the body 25 member of the clamp. It has between its ends a U-shaped recess 2 having in its back face 3 the groove 4- to receive one side of the polish rod 5. The body has at its ends and substantially in line with the face 3 the trunnions 6 to which mechanism for reciprocating the clamp is attached.
' 7 is the body gate or clamping member which closes the open side of the U-shaped recess. The gate has a pair of hinge members 8 working in slots 9 in the outer end of the side wall 11 of the recess 2, the hinge members being held in place by the hinge pin 10. p The body gate has an inwardly pro-- jecting portion 12 which when the gate 1s closed extends into the recess 2 and the face 13 lying close to and parallel wlth the face 3. I The face 13 has a groove'14 slmllar to the groove 4 and lying parallel therewith and directly opposite thereto, so that the two grooves 4 and 14 may engage the opposite sides of the polish rod or other bar or rod. When the gate is closed, a lug 15 on' the face 13 is in the recess 16 in the face 3, the lower face of the lug resting on the bottom of the recess to support the outer end of the ,gate and relieve the hinge pm and hlnge members of any shearing action.-
The remaining end wall of the recess 2 has the ears 17 between which, the huge 9 the recess 22 to receive the eye bolt 23 through whose eye the hinge pin 10 extends.
The eye bolt swings on the pin '10 and has the clamping nut 24 threaded thereon. The free end of the lever 19 has the open slot 25 into which the bolt may be swung when the lever 19 is in operative position as shown in Fig. 1. When the bolt isin the slot the nut 24 may be screwed down by the aid of the hand lever 26 against the back of the lever 19 to cause the latter by means of the shoulder 21 toforce the body member inwardly so as to grip the rod 5 firmly in the grooves 4 and 14.
It is seen that the power delivered by the nut 24 to the lever 19 is greatly multiplied since the length of the lever 19 is many times the distance of the shoulder 21 from the center of the pivot pin 20, and since the distance between the center of the pin 10 and the point of application of the shoulder 21 to the body gate 7 is greater than the distance from the center of the pin 10 to the center of the rod 5.
I claim- 1 A body member having a rod-engaging surface, a body gate member hinged at one end to the body member at one side of said surface, a clamping gate hinged at. one end to the body member at the opposite side of the said surface and having a portion close to its pivot to engage the free end of the body gate member and force the latter toward the body member and into gripping contact with a rod engaging the said surface, and power means carried by one of the said members and applicable to the free end of the clamping gate member to increase the pressure of the said portion against the body gate.
2. surface, a ody gate hinged at one end to A. bod member having a rod-engaging the body member at one side of said surface,
a clamping gate hinged at one end to the i body member at the opposite side of the said surface and having a "portion close to its pivot to engage the free end of the body gate and force the latter toward the body member and into gripping contact with a, rod engaging the said surface, a threaded bolt having an eye pivoted on the pivot of the body gate,
and a nut on the bolt for operating the clamping gate to increase the pressure of the said portion against the body gate. 10
In testimony whereof, I hereunto afiix my signature.
"CLYDE SQWRIGHT.
US61150A 1925-10-07 1925-10-07 Polish-rod clamp Expired - Lifetime US1578696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US61150A US1578696A (en) 1925-10-07 1925-10-07 Polish-rod clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61150A US1578696A (en) 1925-10-07 1925-10-07 Polish-rod clamp

Publications (1)

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US1578696A true US1578696A (en) 1926-03-30

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US61150A Expired - Lifetime US1578696A (en) 1925-10-07 1925-10-07 Polish-rod clamp

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747274C (en) * 1941-04-27 1944-09-18 Gerhard Fieseler Device for clamping bolt-like workpieces with an already machined shaft
US2907370A (en) * 1953-10-05 1959-10-06 Quinn Esther Wilson Flaring tool with automatic gauging means
US20050045323A1 (en) * 2000-06-09 2005-03-03 Oil Lift Technology Inc. Pump drive head with stuffing box
US20050211428A1 (en) * 2004-03-29 2005-09-29 Wright Andrew J Pump rod clamp and blowout preventer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747274C (en) * 1941-04-27 1944-09-18 Gerhard Fieseler Device for clamping bolt-like workpieces with an already machined shaft
US2907370A (en) * 1953-10-05 1959-10-06 Quinn Esther Wilson Flaring tool with automatic gauging means
US20050045323A1 (en) * 2000-06-09 2005-03-03 Oil Lift Technology Inc. Pump drive head with stuffing box
US9016362B2 (en) 2000-06-09 2015-04-28 Oil Lift Technology Inc. Polish rod locking clamp
US9322238B2 (en) 2000-06-09 2016-04-26 Oil Lift Technology Inc. Polish rod locking clamp
US10087696B2 (en) 2000-06-09 2018-10-02 Oil Lift Technology Inc. Polish rod locking clamp
US20050211428A1 (en) * 2004-03-29 2005-09-29 Wright Andrew J Pump rod clamp and blowout preventer
US7000888B2 (en) 2004-03-29 2006-02-21 Gadu, Inc. Pump rod clamp and blowout preventer

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