US1403201A - Lock joint for rods - Google Patents

Lock joint for rods Download PDF

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Publication number
US1403201A
US1403201A US453231A US45323121A US1403201A US 1403201 A US1403201 A US 1403201A US 453231 A US453231 A US 453231A US 45323121 A US45323121 A US 45323121A US 1403201 A US1403201 A US 1403201A
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United States
Prior art keywords
rods
lock
fork
rod
lock joint
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Expired - Lifetime
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US453231A
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Leander P Shaw
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Individual
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Individual
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Priority to US453231A priority Critical patent/US1403201A/en
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    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • Y10T403/70—Interfitted members
    • Y10T403/7005—Lugged member, rotary engagement

Definitions

  • This invention pertains to lock joints for rods, and is especially designed for use upon the sucker rods of pumps and oil wells.
  • the object is to provide a simple and eflicient lock joint of this kind which may be much more readily and quickly adjusted for interlocking the abutting ends of such rods than the ordinary devices employed.
  • Figure 1 is a side elevation of the stub end of the sucker rod
  • Figure 2 is an end view of the same
  • Figure 3 is a side elevation of the fork end of the other rod to be joined, showing the key fork partially advanced;
  • Figure 4 is an end view of the same
  • Figure 5 is a detail of the key fork removed from the guide slots formed lnthe end of the rod.
  • Figure 6 is an assembly view.
  • Figure 7 is a detail of the lock fork.
  • the invention consists in chambering out the stub end 1 of one sucker rod 2, at each side so as to leave themain lead grooves 3 extending to the end of the rod, the lateral, oppositely directed lool@ recesses 4, which form the oppositely directed lock shoulders 5, and finally the shallow surface recesses 6 extended laterally from the main grooves 3 and also reaching to the end of the rod.
  • the end 7 of the other rod 8 which is to be joined to the rod 2 is formed to embody an integral lock fork 9, the tines 10 whereof have inwardly turned lock lugs ll, adapted to slide longitudinally within the main lead grooves 3 of the end 1 and then, turning laterally, to engage the lock shoulders 5, thus preventing longitudinal stress from separating the' rods.
  • the tines 10 turn laterally into the surface recesses 6, thus presenting a uniform and even outer surface along the two rods.
  • Guide slots 12 are chambered out, one at one side of each side the tines l() and into the grooves 3, thus locking the lugs 11 into engagement with the shoulders 5.
  • the key fork 14 is drawn back from the grooves 3, after which the lugs 11 may be twisted or turned laterally out of the recesses 4 and from engagement with the shoulders 5, and the rods may be pulled apart.
  • a lock joint for rods consisting in chambering out@ one end of one rod toform oppositely positioned longitudinal lead grooves, laterally connected and extended shallow recesses, and deeper lock recesses and resulting shoulders at the inner ends of the shallow recesses; an integral lock 'fork with inwardly turned lock lugs formed at one end Aof the other rod, said lugs being adapted to travel the grooves aforesaid and to laterally engage the said lock recesses of the first mentioned rod; rearwardly connected guide slots -formed one at one side of each of the' tines of the said'fork; and a key fork slidingly mounted in said guide slots, the prongs thereof beine ada ted to travel the'grooves in the end1 of t e first mentioned rod, for locking the lock lugs @y v v i' mesma.

Description

entre@ stares Parana" ortica.
LEANDER P. SHAW, 0F BRADFORD, PENNSYLVAMA.
LOCK JOINT FOR RODS.
inoaaoi.
Application led March 18,1921.l Serial No. 453,231.
To all lwhom t may concern:
Be it known that I, LEANDER P. SHAW, a citizen of the United Sta-tes, residing 1n the city of Bradford and State of Pennsylvania, have invented new and useful Improvements in Lock Joints for Rods, ofwhich lthe following is aspecification, reference being had to the accompanying dra-wings.A
This invention pertains to lock joints for rods, and is especially designed for use upon the sucker rods of pumps and oil wells.
The object is to provide a simple and eflicient lock joint of this kind which may be much more readily and quickly adjusted for interlocking the abutting ends of such rods than the ordinary devices employed.
In the drawings:
Figure 1 is a side elevation of the stub end of the sucker rod;
Figure 2 is an end view of the same;
Figure 3 is a side elevation of the fork end of the other rod to be joined, showing the key fork partially advanced;
Figure 4 is an end view of the same;
Figure 5 is a detail of the key fork removed from the guide slots formed lnthe end of the rod.
Figure 6 is an assembly view.
Figure 7 is a detail of the lock fork.
The invention consists in chambering out the stub end 1 of one sucker rod 2, at each side so as to leave themain lead grooves 3 extending to the end of the rod, the lateral, oppositely directed lool@ recesses 4, which form the oppositely directed lock shoulders 5, and finally the shallow surface recesses 6 extended laterally from the main grooves 3 and also reaching to the end of the rod.
The end 7 of the other rod 8 which is to be joined to the rod 2, is formed to embody an integral lock fork 9, the tines 10 whereof have inwardly turned lock lugs ll, adapted to slide longitudinally within the main lead grooves 3 of the end 1 and then, turning laterally, to engage the lock shoulders 5, thus preventing longitudinal stress from separating the' rods. At the same time the tines 10 turn laterally into the surface recesses 6, thus presenting a uniform and even outer surface along the two rods. Guide slots 12 are chambered out, one at one side of each side the tines l() and into the grooves 3, thus locking the lugs 11 into engagement with the shoulders 5. To unlock or disconnect the two rods, the key fork 14 is drawn back from the grooves 3, after which the lugs 11 may be twisted or turned laterally out of the recesses 4 and from engagement with the shoulders 5, and the rods may be pulled apart.
"While I have herein described a certain specific method of constructing and assem- Specication of Letters Patent. 1' Patented Jamo 11(1), jjgjggn bling the elements of my invention, it is unu derstood that the same may be varied in minor details, not departing from the spirit of my invention as defined in the appended claims. y
What I claim to be new and patentable is: 1. A lock joint for rods, consisting in chambering out@ one end of one rod toform oppositely positioned longitudinal lead grooves, laterally connected and extended shallow recesses, and deeper lock recesses and resulting shoulders at the inner ends of the shallow recesses; an integral lock 'fork with inwardly turned lock lugs formed at one end Aof the other rod, said lugs being adapted to travel the grooves aforesaid and to laterally engage the said lock recesses of the first mentioned rod; rearwardly connected guide slots -formed one at one side of each of the' tines of the said'fork; and a key fork slidingly mounted in said guide slots, the prongs thereof beine ada ted to travel the'grooves in the end1 of t e first mentioned rod, for locking the lock lugs @y v v i' mesma.
aepied to engage said lead grooves and of the lock fork for holding said lock lugs oek shoulders; guide slots formed at the in engagement wish the lock shoulders. sides ef the times 0f said fork, seme being conneced; by s mortise at their inner'ens; LEANDER P SHAW' :md a key fork sdingly mounted im said Witnesses: guide slots, .its prongs .being ada ted to P. G. HOUGHTQN,
travel said lead grooves'elongside e eines F. D. Hmxox.
US453231A 1921-03-18 1921-03-18 Lock joint for rods Expired - Lifetime US1403201A (en)

Priority Applications (1)

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US453231A US1403201A (en) 1921-03-18 1921-03-18 Lock joint for rods

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US1403201A true US1403201A (en) 1922-01-10

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802680A (en) * 1952-05-15 1957-08-13 Kennametal Inc Turbine wheel assembly
US6652180B2 (en) * 2001-07-31 2003-11-25 General Electric Co. Method and apparatus for load-bearing coupling
US20120326412A1 (en) * 2009-04-22 2012-12-27 Air Suspensions, Inc. Suspension system with single moving element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802680A (en) * 1952-05-15 1957-08-13 Kennametal Inc Turbine wheel assembly
US6652180B2 (en) * 2001-07-31 2003-11-25 General Electric Co. Method and apparatus for load-bearing coupling
US20120326412A1 (en) * 2009-04-22 2012-12-27 Air Suspensions, Inc. Suspension system with single moving element
US8720922B2 (en) * 2009-04-22 2014-05-13 Transportation Technologies, Inc. Suspension system with single moving element

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